org.eclipse.persistence.expressions.ExpressionOperator Maven / Gradle / Ivy
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/*
* Copyright (c) 1998, 2022 Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2018, 2022 IBM Corporation. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0,
* or the Eclipse Distribution License v. 1.0 which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
*/
// Contributors:
// Oracle - initial API and implementation from Oracle TopLink
// Markus Karg - allow arguments to be specified multiple times in argumentIndices
// 05/07/2009-1.1.1 Dave Brosius
// - 263904: [PATCH] ExpressionOperator doesn't compare arrays correctly
// 01/23/2018-2.7 Will Dazey
// - 530214: trim operation should not bind parameters
// 02/01/2022: Tomas Kraus
// - Issue 1442: Implement New Jakarta Persistence 3.1 Features
package org.eclipse.persistence.expressions;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;
import java.util.Vector;
import org.eclipse.persistence.exceptions.QueryException;
import org.eclipse.persistence.internal.expressions.ArgumentListFunctionExpression;
import org.eclipse.persistence.internal.expressions.ExpressionJavaPrinter;
import org.eclipse.persistence.internal.expressions.ExpressionSQLPrinter;
import org.eclipse.persistence.internal.expressions.ExtractOperator;
import org.eclipse.persistence.internal.expressions.FunctionExpression;
import org.eclipse.persistence.internal.expressions.LogicalExpression;
import org.eclipse.persistence.internal.expressions.ObjectExpression;
import org.eclipse.persistence.internal.expressions.RelationExpression;
import org.eclipse.persistence.internal.helper.ClassConstants;
import org.eclipse.persistence.internal.helper.DatabaseTable;
import org.eclipse.persistence.internal.helper.Helper;
import org.eclipse.persistence.internal.helper.JavaPlatform;
import org.eclipse.persistence.internal.security.PrivilegedAccessHelper;
/**
*
* Purpose: ADVANCED: The expression operator is used internally to define SQL operations and functions.
* It is possible for an advanced user to define their own operators.
*/
public class ExpressionOperator implements Serializable {
/** Required for serialization compatibility. */
static final long serialVersionUID = -7066100204792043980L;
protected int selector;
protected String name;
// ListExpressionOperator uses its own start/separator/terminator strings
private String[] databaseStrings;
protected boolean isPrefix = false;
protected boolean isRepeating = false;
protected Class nodeClass;
protected int type;
protected int[] argumentIndices = null;
/** Contains user defined operators */
protected static Map allOperators = initializeOperators();
/** Contains internal defined operators meant as placeholders for platform operators */
protected static Map allInternalOperators = initializeInternalOperators();
protected static final Map platformOperatorSelectors = initializePlatformOperatorSelectors();
protected static final Map platformOperatorNames = initializePlatformOperatorNames();
protected String[] javaStrings;
/** Allow operator to disable/enable binding for the whole expression.
* Set to 'null' to enable `isArgumentBindingSupported` finer detail. */
protected Boolean isBindingSupported = true;
/** Operator types */
public static final int LogicalOperator = 1;
public static final int ComparisonOperator = 2;
public static final int AggregateOperator = 3;
public static final int OrderOperator = 4;
public static final int FunctionOperator = 5;
/** Logical operators */
public static final int And = 1;
public static final int Or = 2;
public static final int Not = 3;
/** Comparison operators */
public static final int Equal = 4;
public static final int NotEqual = 5;
public static final int EqualOuterJoin = 6;
public static final int LessThan = 7;
public static final int LessThanEqual = 8;
public static final int GreaterThan = 9;
public static final int GreaterThanEqual = 10;
public static final int Like = 11;
public static final int NotLike = 12;
public static final int In = 13;
public static final int InSubQuery = 129;
public static final int NotIn = 14;
public static final int NotInSubQuery = 130;
public static final int Between = 15;
public static final int NotBetween = 16;
public static final int IsNull = 17;
public static final int NotNull = 18;
public static final int Exists = 86;
public static final int NotExists = 88;
public static final int LikeEscape = 89;
public static final int NotLikeEscape = 134;
public static final int Decode = 105;
public static final int Case = 117;
public static final int NullIf = 131;
public static final int Coalesce = 132;
public static final int CaseCondition = 136;
public static final int Regexp = 141;
/** Aggregate operators */
public static final int Count = 19;
public static final int Sum = 20;
public static final int Average = 21;
public static final int Maximum = 22;
public static final int Minimum = 23;
public static final int StandardDeviation = 24;
public static final int Variance = 25;
public static final int Distinct = 87;
public static final int As = 148;
/** Union operators */
public static final int Union = 142;
public static final int UnionAll = 143;
public static final int Intersect = 144;
public static final int IntersectAll = 145;
public static final int Except = 146;
public static final int ExceptAll = 147;
/** Ordering operators */
public static final int Ascending = 26;
public static final int Descending = 27;
public static final int NullsFirst = 139;
public static final int NullsLast = 140;
/** Function operators */
// General
public static final int ToUpperCase = 28;
public static final int ToLowerCase = 29;
public static final int Chr = 30;
public static final int Concat = 31;
public static final int HexToRaw = 32;
public static final int Initcap = 33;
public static final int Instring = 34;
public static final int Soundex = 35;
public static final int LeftPad = 36;
public static final int LeftTrim = 37;
public static final int Replace = 38;
public static final int RightPad = 39;
public static final int RightTrim = 40;
public static final int Substring = 41;
public static final int ToNumber = 42;
public static final int Translate = 43;
public static final int Trim = 44;
public static final int Ascii = 45;
public static final int Length = 46;
public static final int CharIndex = 96;
public static final int CharLength = 97;
public static final int Difference = 98;
public static final int Reverse = 99;
public static final int Replicate = 100;
public static final int Right = 101;
public static final int Locate = 112;
public static final int Locate2 = 113;
public static final int ToChar = 114;
public static final int ToCharWithFormat = 115;
public static final int RightTrim2 = 116;
public static final int Any = 118;
public static final int Some = 119;
public static final int All = 120;
public static final int Trim2 = 121;
public static final int LeftTrim2 = 122;
public static final int SubstringSingleArg = 133;
public static final int Cast = 137;
public static final int Extract = 138;
// Date
public static final int AddMonths = 47;
public static final int DateToString = 48;
public static final int LastDay = 49;
public static final int MonthsBetween = 50;
public static final int NextDay = 51;
public static final int RoundDate = 52;
public static final int ToDate = 53;
/**
* Function to obtain the current timestamp on the database including date
* and time components. This corresponds to the JPQL function
* current_timestamp.
*/
public static final int Today = 54;
public static final int AddDate = 90;
public static final int DateName = 92;
public static final int DatePart = 93;
public static final int DateDifference = 94;
public static final int TruncateDate = 102;
public static final int NewTime = 103;
public static final int Nvl = 104;
/**
* Function to obtain the current date on the database with date components
* only but without time components. This corresponds to the JPQL function
* current_date.
*/
public static final int CurrentDate = 123;
/**
* Function to obtain the current time on the database with time components
* only but without date components. This corresponds to the JPQL function
* current_time.
*/
public static final int CurrentTime = 128;
public static final int LocalDate = 149;
public static final int LocalTime = 150;
public static final int LocalDateTime = 151;
// Math
public static final int Ceil = 55;
public static final int Cos = 56;
public static final int Cosh = 57;
public static final int Abs = 58;
public static final int Acos = 59;
public static final int Asin = 60;
public static final int Atan = 61;
public static final int Exp = 62;
public static final int Sqrt = 63;
public static final int Floor = 64;
public static final int Ln = 65;
public static final int Log = 66;
public static final int Mod = 67;
public static final int Power = 68;
public static final int Round = 69;
public static final int Sign = 70;
public static final int Sin = 71;
public static final int Sinh = 72;
public static final int Tan = 73;
public static final int Tanh = 74;
public static final int Trunc = 75;
public static final int Greatest = 76;
public static final int Least = 77;
public static final int Add = 78;
public static final int Subtract = 79;
public static final int Divide = 80;
public static final int Multiply = 81;
public static final int Atan2 = 91;
public static final int Cot = 95;
public static final int Negate = 135;
// Object-relational
public static final int Deref = 82;
public static final int Ref = 83;
public static final int RefToHex = 84;
public static final int Value = 85;
//XML Specific
public static final int ExtractXml = 106;
public static final int ExtractValue = 107;
public static final int ExistsNode = 108;
public static final int GetStringVal = 109;
public static final int GetNumberVal = 110;
public static final int IsFragment = 111;
// Spatial
public static final int SDO_WITHIN_DISTANCE = 124;
public static final int SDO_RELATE = 125;
public static final int SDO_FILTER = 126;
public static final int SDO_NN = 127;
/**
* ADVANCED:
* Create a new operator.
*/
public ExpressionOperator() {
this.type = FunctionOperator;
// For bug 2780072 provide default behavior to make this class more useable.
setNodeClass(ClassConstants.FunctionExpression_Class);
}
/**
* ADVANCED:
* Create a new operator with the given name(s) and strings to print.
*/
public ExpressionOperator(int selector, List newDatabaseStrings) {
this.type = FunctionOperator;
// For bug 2780072 provide default behavior to make this class more useable.
setNodeClass(ClassConstants.FunctionExpression_Class);
this.selector = selector;
this.printsAs(newDatabaseStrings);
}
/**
* PUBLIC:
* Return if binding is compatible with this operator.
*/
public Boolean isBindingSupported() {
return isBindingSupported;
}
/**
* PUBLIC:
* Set if binding is compatible with this operator.
* Some databases do not allow binding, or require casting with certain operators.
*/
public void setIsBindingSupported(boolean isBindingSupported) {
this.isBindingSupported = isBindingSupported;
}
/**
* INTERNAL:
* Return if the operator is equal to the other.
*/
@Override
public boolean equals(Object object) {
if (this == object) {
return true;
}
if ((object == null) || (getClass() != object.getClass())) {
return false;
}
ExpressionOperator operator = (ExpressionOperator) object;
if (getSelector() == 0) {
return Arrays.equals(getDatabaseStrings(0), operator.getDatabaseStrings(0));
} else {
return getSelector() == operator.getSelector();
}
}
/**
* INTERNAL:
* Return the hash-code based on the unique selector.
*/
@Override
public int hashCode() {
return getSelector();
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator abs() {
return simpleFunction(Abs, "ABS");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator acos() {
return simpleFunction(Acos, "ACOS");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator add() {
return ExpressionOperator.simpleMath(ExpressionOperator.Add, "+");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator addDate() {
ExpressionOperator exOperator = simpleThreeArgumentFunction(AddDate, "DATEADD");
int[] indices = new int[3];
indices[0] = 1;
indices[1] = 2;
indices[2] = 0;
exOperator.setArgumentIndices(indices);
return exOperator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator addMonths() {
return simpleTwoArgumentFunction(AddMonths, "ADD_MONTHS");
}
/**
* ADVANCED:
* Add an operator to the user defined list of operators.
*/
public static void addOperator(ExpressionOperator exOperator) {
allOperators.put(exOperator.getSelector(), exOperator);
}
/**
* INTERNAL:
*/
private static void addOperator(Map map, ExpressionOperator exOperator) {
map.put(Integer.valueOf(exOperator.getSelector()), exOperator);
}
/**
* ADVANCED:
* Define a name for a user defined operator.
*/
public static void registerOperator(int selector, String name) {
platformOperatorNames.put(selector, name);
platformOperatorSelectors.put(name, selector);
}
/**
* INTERNAL:
* Create the AND operator.
*/
public static ExpressionOperator and() {
return simpleLogical(And, "AND", "and");
}
/**
* INTERNAL:
* Apply this to an object in memory.
* Throw an error if the function is not supported.
*/
public Object applyFunction(Object source, List arguments) {
if (source instanceof String) {
if (this.selector == ToUpperCase) {
return ((String)source).toUpperCase();
} else if (this.selector == ToLowerCase) {
return ((String)source).toLowerCase();
} else if ((this.selector == Concat) && (arguments.size() == 1) && (arguments.get(0) instanceof String)) {
return ((String)source).concat((String)arguments.get(0));
} else if ((this.selector == Substring) && (arguments.size() == 2) && (arguments.get(0) instanceof Number) && (arguments.get(1) instanceof Number)) {
// assume the first parameter to be 1-based first index of the substring, the second - substring length.
int beginIndexInclusive = ((Number)arguments.get(0)).intValue() - 1;
int endIndexExclusive = beginIndexInclusive + ((Number)arguments.get(1)).intValue();
return ((String)source).substring(beginIndexInclusive, endIndexExclusive);
} else if ((this.selector == SubstringSingleArg) && (arguments.size() == 1) && (arguments.get(0) instanceof Number)) {
int beginIndexInclusive = ((Number)arguments.get(0)).intValue() - 1;
int endIndexExclusive = ((String)source).length();
return ((String)source).substring(beginIndexInclusive, endIndexExclusive);
} else if (this.selector == ToNumber) {
return new java.math.BigDecimal((String)source);
} else if (this.selector == Trim) {
return ((String)source).trim();
} else if (this.selector == Length) {
return ((String) source).length();
}
} else if (source instanceof Number) {
if (this.selector == Ceil) {
return Math.ceil(((Number) source).doubleValue());
} else if (this.selector == Cos) {
return Math.cos(((Number) source).doubleValue());
} else if (this.selector == Abs) {
return Math.abs(((Number) source).doubleValue());
} else if (this.selector == Acos) {
return Math.acos(((Number) source).doubleValue());
} else if (this.selector == Asin) {
return Math.asin(((Number) source).doubleValue());
} else if (this.selector == Atan) {
return Math.atan(((Number) source).doubleValue());
} else if (this.selector == Exp) {
return Math.exp(((Number) source).doubleValue());
} else if (this.selector == Sqrt) {
return Math.sqrt(((Number) source).doubleValue());
} else if (this.selector == Floor) {
return Math.floor(((Number) source).doubleValue());
} else if (this.selector == Log) {
return Math.log(((Number) source).doubleValue());
} else if ((this.selector == Power) && (arguments.size() == 1) && (arguments.get(0) instanceof Number)) {
return Math.pow(((Number) source).doubleValue(), (((Number) arguments.get(0)).doubleValue()));
} else if (this.selector == Round) {
return (double) Math.round(((Number) source).doubleValue());
} else if (this.selector == Sin) {
return Math.sin(((Number) source).doubleValue());
} else if (this.selector == Tan) {
return Math.tan(((Number) source).doubleValue());
} else if ((this.selector == Greatest) && (arguments.size() == 1) && (arguments.get(0) instanceof Number)) {
return Math.max(((Number) source).doubleValue(), (((Number) arguments.get(0)).doubleValue()));
} else if ((this.selector == Least) && (arguments.size() == 1) && (arguments.get(0) instanceof Number)) {
return Math.min(((Number) source).doubleValue(), (((Number) arguments.get(0)).doubleValue()));
} else if ((this.selector == Add) && (arguments.size() == 1) && (arguments.get(0) instanceof Number)) {
return ((Number) source).doubleValue() + (((Number) arguments.get(0)).doubleValue());
} else if ((this.selector == Subtract) && (arguments.size() == 1) && (arguments.get(0) instanceof Number)) {
return ((Number) source).doubleValue() - (((Number) arguments.get(0)).doubleValue());
} else if ((this.selector == Divide) && (arguments.size() == 1) && (arguments.get(0) instanceof Number)) {
return ((Number) source).doubleValue() / (((Number) arguments.get(0)).doubleValue());
} else if ((this.selector == Multiply) && (arguments.size() == 1) && (arguments.get(0) instanceof Number)) {
return ((Number) source).doubleValue() * (((Number) arguments.get(0)).doubleValue());
}
}
throw QueryException.cannotConformExpression();
}
/**
* INTERNAL:
* Create the ASCENDING operator.
*/
public static ExpressionOperator ascending() {
return simpleOrdering(Ascending, "ASC", "ascending");
}
/**
* INTERNAL:
* Create the AS operator.
*/
public static ExpressionOperator as() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(As);
exOperator.printsAs(" AS ");
exOperator.bePostfix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create the NULLS FIRST ordering operator.
*/
public static ExpressionOperator nullsFirst() {
return simpleOrdering(NullsFirst, "NULLS FIRST", "nullsFirst");
}
/**
* INTERNAL:
* Create the NULLS LAST ordering operator.
*/
public static ExpressionOperator nullsLast() {
return simpleOrdering(NullsLast, "NULLS LAST", "nullsLast");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator ascii() {
return simpleFunction(Ascii, "ASCII");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator asin() {
return simpleFunction(Asin, "ASIN");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator atan() {
return simpleFunction(Atan, "ATAN");
}
/**
* INTERNAL:
* Create the AVERAGE operator.
*/
public static ExpressionOperator average() {
return simpleAggregate(Average, "AVG", "average");
}
/**
* ADVANCED:
* Tell the operator to be postfix, i.e. its strings start printing after
* those of its first argument.
*/
public void bePostfix() {
isPrefix = false;
}
/**
* ADVANCED:
* Tell the operator to be pretfix, i.e. its strings start printing before
* those of its first argument.
*/
public void bePrefix() {
isPrefix = true;
}
/**
* INTERNAL:
* Make this a repeating argument. Currently unused.
*/
public void beRepeating() {
isRepeating = true;
}
/**
* INTERNAL:
* Create the BETWEEN Operator
*/
public static ExpressionOperator between() {
ExpressionOperator result = new ExpressionOperator();
result.setSelector(Between);
result.setType(ComparisonOperator);
List v = new ArrayList<>();
v.add("(");
v.add(" BETWEEN ");
v.add(" AND ");
v.add(")");
result.printsAs(v);
result.bePrefix();
result.setNodeClass(ClassConstants.FunctionExpression_Class);
return result;
}
/**
* INTERNAL:
* Create the NOT BETWEEN operator
*/
public static ExpressionOperator notBetween() {
ExpressionOperator result = new ExpressionOperator();
result.setSelector(NotBetween);
result.setType(ComparisonOperator);
List v = new ArrayList<>();
v.add("(");
v.add(" NOT BETWEEN ");
v.add(" AND ");
v.add(")");;
result.printsAs(v);
result.bePrefix();
result.setNodeClass(ClassConstants.FunctionExpression_Class);
return result;
}
/**
* INTERNAL:
* Build operator.
* Note: This operator works differently from other operators.
* @see Expression#caseStatement(Map, Object)
*/
public static ExpressionOperator caseStatement() {
ListExpressionOperator exOperator = new ListExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(Case);
exOperator.bePrefix();
exOperator.setNodeClass(ClassConstants.ArgumentListFunctionExpression_Class);
exOperator.setIsBindingSupported(false);
exOperator.setStartString("CASE ");
exOperator.setSeparators(new String[]{" WHEN ", " THEN "});
exOperator.setTerminationStrings(new String[]{" ELSE ", " END"});
return exOperator;
}
/**
* INTERNAL:
* Build operator.
* Note: This operator works differently from other operators.
* @see Expression#caseStatement(Map, Object)
*/
public static ExpressionOperator caseConditionStatement() {
ListExpressionOperator exOperator = new ListExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(CaseCondition);
exOperator.bePrefix();
exOperator.setNodeClass(ClassConstants.ArgumentListFunctionExpression_Class);
exOperator.setIsBindingSupported(false);
exOperator.setStartStrings(new String[]{"CASE WHEN ", " THEN "});
exOperator.setSeparators(new String[]{" WHEN ", " THEN "});
exOperator.setTerminationStrings(new String[]{" ELSE ", " END "});
return exOperator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator ceil() {
return simpleFunction(Ceil, "CEIL");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator charIndex() {
return simpleTwoArgumentFunction(CharIndex, "CHARINDEX");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator charLength() {
return simpleFunction(CharLength, "CHAR_LENGTH");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator chr() {
return simpleFunction(Chr, "CHR");
}
/**
* INTERNAL:
* Build operator.
* Note: This operator works differently from other operators.
* @see Expression#caseStatement(Map, Object)
*/
public static ExpressionOperator coalesce() {
ListExpressionOperator exOperator = new ListExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(Coalesce);
exOperator.bePrefix();
exOperator.setNodeClass(ClassConstants.ArgumentListFunctionExpression_Class);
exOperator.setStartString("COALESCE(");
exOperator.setSeparator(", ");
exOperator.setTerminationString(")");
return exOperator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator concat() {
ExpressionOperator operator = simpleMath(Concat, "+");
operator.setIsBindingSupported(false);
return operator;
}
/**
* INTERNAL:
* Compare between in memory.
*/
public boolean conformBetween(Object left, Object right) {
Object start = ((Vector)right).elementAt(0);
Object end = ((Vector)right).elementAt(1);
if ((left == null) || (start == null) || (end == null)) {
return false;
}
if ((left instanceof Number) && (start instanceof Number) && (end instanceof Number)) {
return ((((Number)left).doubleValue()) >= (((Number)start).doubleValue())) && ((((Number)left).doubleValue()) <= (((Number)end).doubleValue()));
} else if ((left instanceof String) && (start instanceof String) && (end instanceof String)) {
return ((((String)left).compareTo(((String)start)) > 0) || (((String)left).compareTo(((String)start)) == 0)) && ((((String)left).compareTo(((String)end)) < 0) || (((String)left).compareTo(((String)end)) == 0));
} else if ((left instanceof java.util.Date) && (start instanceof java.util.Date) && (end instanceof java.util.Date)) {
return (((java.util.Date)left).after(((java.util.Date)start)) || left.equals((start))) && (((java.util.Date)left).before(((java.util.Date)end)) || left.equals((end)));
} else if ((left instanceof java.util.Calendar) && (start instanceof java.util.Calendar) && (end instanceof java.util.Calendar)) {
return (((java.util.Calendar)left).after(start) || left.equals((start))) && (((java.util.Calendar)left).before(end) || left.equals((end)));
}
throw QueryException.cannotConformExpression();
}
/**
* INTERNAL:
* Compare like in memory.
* This only works for % not _.
*/
public boolean conformLike(Object left, Object right) {
if ((right == null) && (left == null)) {
return true;
}
if (!(right instanceof String) || !(left instanceof String)) {
throw QueryException.cannotConformExpression();
}
String likeString = (String)right;
if (likeString.indexOf('_') != -1) {
throw QueryException.cannotConformExpression();
}
String value = (String)left;
if (likeString.indexOf('%') == -1) {
// No % symbols
return left.equals(right);
}
boolean strictStart = !likeString.startsWith("%");
boolean strictEnd = !likeString.endsWith("%");
StringTokenizer tokens = new StringTokenizer(likeString, "%");
int lastPosition = 0;
String lastToken = null;
if (strictStart) {
lastToken = tokens.nextToken();
if (!value.startsWith(lastToken)) {
return false;
}
}
while (tokens.hasMoreTokens()) {
lastToken = tokens.nextToken();
lastPosition = value.indexOf(lastToken, lastPosition);
if (lastPosition < 0) {
return false;
}
}
if (strictEnd) {
return value.endsWith(lastToken);
}
return true;
}
public ExpressionOperator clone(){
ExpressionOperator clone = new ExpressionOperator();
this.copyTo(clone);
return clone;
}
public void copyTo(ExpressionOperator operator){
if(operator == null)
return;
operator.selector = selector;
operator.isPrefix = isPrefix;
operator.isRepeating = isRepeating;
operator.nodeClass = nodeClass;
operator.type = type;
operator.databaseStrings = databaseStrings == null ? null : Helper.copyStringArray(databaseStrings);
operator.argumentIndices = argumentIndices == null ? null : Helper.copyIntArray(argumentIndices);
operator.javaStrings = javaStrings == null ? null : Helper.copyStringArray(javaStrings);
operator.isBindingSupported = isBindingSupported == null ? null : new Boolean(isBindingSupported);
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator cos() {
return simpleFunction(Cos, "COS");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator cosh() {
return simpleFunction(Cosh, "COSH");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator cot() {
return simpleFunction(Cot, "COT");
}
/**
* INTERNAL:
* Create the COUNT operator.
*/
public static ExpressionOperator count() {
return simpleAggregate(Count, "COUNT", "count");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator dateDifference() {
return simpleThreeArgumentFunction(DateDifference, "DATEDIFF");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator dateName() {
return simpleTwoArgumentFunction(DateName, "DATENAME");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator datePart() {
return simpleTwoArgumentFunction(DatePart, "DATEPART");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator dateToString() {
return simpleFunction(DateToString, "TO_CHAR");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator toChar() {
return simpleFunction(ToChar, "TO_CHAR");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator toCharWithFormat() {
return simpleTwoArgumentFunction(ToCharWithFormat, "TO_CHAR");
}
/**
* INTERNAL:
* Build operator.
* Note: This operator works differently from other operators.
* @see Expression#decode(Map, String)
*/
public static ExpressionOperator decode() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setSelector(Decode);
exOperator.setNodeClass(FunctionExpression.class);
exOperator.setType(FunctionOperator);
exOperator.bePrefix();
return exOperator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator deref() {
return simpleFunction(Deref, "DEREF");
}
/**
* INTERNAL:
* Create the DESCENDING operator.
*/
public static ExpressionOperator descending() {
return simpleOrdering(Descending, "DESC", "descending");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator difference() {
return simpleTwoArgumentFunction(Difference, "DIFFERENCE");
}
/**
* INTERNAL:
* Create the DISTINCT operator.
*/
public static ExpressionOperator distinct() {
return simpleFunction(Distinct, "DISTINCT", "distinct");
}
/**
* INTERNAL:
* Create the DISTINCT operator.
*/
public static ExpressionOperator divide() {
return ExpressionOperator.simpleMath(ExpressionOperator.Divide, "/");
}
/**
* INTERNAL:
* Compare the values in memory.
* Used for in-memory querying, all operators are not support.
*/
public boolean doesRelationConform(Object left, Object right) {
// Big ugly case statement follows.
// Java is really verbose, the Smalltalk equivalent to this... left perform: self selector with: right
// Note, compareTo for String returns a number <= -1 if the String is less than. We assumed that
// it would return -1. The same thing for strings that are greater than (ie it returns >= 1). PWK
// Equals
if (this.selector == Equal || this.selector == NotEqual) {
if ((left == null) && (right == null)) {
return this.selector == Equal;
} else if ((left == null) || (right == null)) {
return this.selector == NotEqual;
}
if (left instanceof Number && left instanceof Comparable && right instanceof Comparable
&& left.getClass().equals (right.getClass())) {
return (((Comparable) left).compareTo( right) == 0) == (this.selector == Equal);
}
if (((left instanceof Number) && (right instanceof Number)) && (left.getClass() != right.getClass())) {
double leftDouble = ((Number)left).doubleValue();
double rightDouble = ((Number)right).doubleValue();
if (Double.isNaN(leftDouble) && Double.isNaN(rightDouble)){
return this.selector == Equal;
}
return (leftDouble == rightDouble) == (this.selector == Equal);
}
return left.equals( right) == (this.selector == Equal);
} else if (this.selector == IsNull) {
return (left == null);
}
if (this.selector == NotNull) {
return (left != null);
}
// Less thans, greater thans
else if (this.selector == LessThan) {// You have got to love polymorphism in Java, NOT!!!
if ((left == null) || (right == null)) {
return false;
}
if ((left instanceof Number) && (right instanceof Number)) {
return (((Number)left).doubleValue()) < (((Number)right).doubleValue());
} else if ((left instanceof String) && (right instanceof String)) {
return ((String)left).compareTo(((String)right)) < 0;
} else if ((left instanceof java.util.Date) && (right instanceof java.util.Date)) {
return ((java.util.Date)left).before(((java.util.Date)right));
} else if ((left instanceof java.util.Calendar) && (right instanceof java.util.Calendar)) {
return ((java.util.Calendar)left).before(right);
}
} else if (this.selector == LessThanEqual) {
if ((left == null) && (right == null)) {
return true;
} else if ((left == null) || (right == null)) {
return false;
}
if ((left instanceof Number) && (right instanceof Number)) {
return (((Number)left).doubleValue()) <= (((Number)right).doubleValue());
} else if ((left instanceof String) && (right instanceof String)) {
int compareValue = ((String)left).compareTo(((String)right));
return (compareValue < 0) || (compareValue == 0);
} else if ((left instanceof java.util.Date) && (right instanceof java.util.Date)) {
return left.equals((right)) || ((java.util.Date)left).before(((java.util.Date)right));
} else if ((left instanceof java.util.Calendar) && (right instanceof java.util.Calendar)) {
return left.equals((right)) || ((java.util.Calendar)left).before(right);
}
} else if (this.selector == GreaterThan) {
if ((left == null) || (right == null)) {
return false;
}
if ((left instanceof Number) && (right instanceof Number)) {
return (((Number)left).doubleValue()) > (((Number)right).doubleValue());
} else if ((left instanceof String) && (right instanceof String)) {
int compareValue = ((String)left).compareTo(((String)right));
return (compareValue > 0);
} else if ((left instanceof java.util.Date) && (right instanceof java.util.Date)) {
return ((java.util.Date)left).after(((java.util.Date)right));
} else if ((left instanceof java.util.Calendar) && (right instanceof java.util.Calendar)) {
return ((java.util.Calendar)left).after(right);
}
} else if (this.selector == GreaterThanEqual) {
if ((left == null) && (right == null)) {
return true;
} else if ((left == null) || (right == null)) {
return false;
}
if ((left instanceof Number) && (right instanceof Number)) {
return (((Number)left).doubleValue()) >= (((Number)right).doubleValue());
} else if ((left instanceof String) && (right instanceof String)) {
int compareValue = ((String)left).compareTo(((String)right));
return (compareValue > 0) || (compareValue == 0);
} else if ((left instanceof java.util.Date) && (right instanceof java.util.Date)) {
return left.equals((right)) || ((java.util.Date)left).after(((java.util.Date)right));
} else if ((left instanceof java.util.Calendar) && (right instanceof java.util.Calendar)) {
return left.equals((right)) || ((java.util.Calendar)left).after(right);
}
}
// Between
else if ((this.selector == Between) && (right instanceof Vector) && (((Vector)right).size() == 2)) {
return conformBetween(left, right);
} else if ((this.selector == NotBetween) && (right instanceof Vector) && (((Vector)right).size() == 2)) {
return !conformBetween(left, right);
}
// In
else if ((this.selector == In) && (right instanceof Collection)) {
return ((Collection)right).contains(left);
} else if ((this.selector == NotIn) && (right instanceof Collection)) {
return !((Collection)right).contains(left);
}
// Like
//conformLike(left, right);
else if (((this.selector == Like) || (this.selector == NotLike)) && (right instanceof Vector) && (((Vector)right).size() == 1)) {
Boolean doesLikeConform = JavaPlatform.conformLike(left, ((Vector)right).get(0));
if (doesLikeConform != null) {
if (doesLikeConform) {
return this.selector == Like;// Negate for NotLike
} else {
return this.selector != Like;// Negate for NotLike
}
}
}
// Regexp
else if ((this.selector == Regexp) && (right instanceof Vector) && (((Vector)right).size() == 1)) {
Boolean doesConform = JavaPlatform.conformRegexp(left, ((Vector)right).get(0));
if (doesConform != null) {
return doesConform;
}
}
throw QueryException.cannotConformExpression();
}
public static ExpressionOperator equal() {
return ExpressionOperator.simpleRelation(ExpressionOperator.Equal, "=", "equal");
}
/**
* INTERNAL:
* Initialize the outer join operator
* Note: This is merely a shell which is incomplete, and
* so will be replaced by the platform's operator when we
* go to print. We need to create this here so that the expression
* class is correct, normally it assumes functions for unknown operators.
*/
public static ExpressionOperator equalOuterJoin() {
return simpleRelation(EqualOuterJoin, "=*");
}
/**
* INTERNAL:
* Create the EXISTS operator.
*/
public static ExpressionOperator exists() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(Exists);
List v = new ArrayList<>(2);
v.add("EXISTS ");
v.add("");
exOperator.printsAs(v);
exOperator.bePrefix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator exp() {
return simpleFunction(Exp, "EXP");
}
/**
* INTERNAL:
* Create an expression for this operator, using the given base.
*/
public Expression expressionFor(Expression base) {
return expressionForArguments(base, new ArrayList<>(0));
}
/**
* INTERNAL:
* Create an expression for this operator, using the given base and a single argument.
*/
public Expression expressionFor(Expression base, Object value) {
return newExpressionForArgument(base, value);
}
/**
* INTERNAL:
* Create an expression for this operator, using the given base and a single argument.
* Base is used last in the expression
*/
public Expression expressionForWithBaseLast(Expression base, Object value) {
return newExpressionForArgumentWithBaseLast(base, value);
}
/**
* INTERNAL:
* Create an expression for this operator, using the given base and arguments.
*/
public Expression expressionForArguments(Expression base, List arguments) {
return newExpressionForArguments(base, arguments);
}
/**
* INTERNAL:
* Create the extract expression operator
*/
public static ExpressionOperator extractXml() {
ExpressionOperator result = new ExpressionOperator();
List v = new ArrayList<>();
v.add("extract(");
v.add(",");
v.add(")");
result.printsAs(v);
result.bePrefix();
result.setSelector(ExtractXml);
result.setNodeClass(ClassConstants.FunctionExpression_Class);
return result;
}
/**
* INTERNAL:
* Create the extractValue expression operator
*/
public static ExpressionOperator extractValue() {
ExpressionOperator result = new ExpressionOperator();
List v = new ArrayList<>();
v.add("extractValue(");
v.add(",");
v.add(")");
result.printsAs(v);
result.bePrefix();
result.setSelector(ExtractValue);
result.setNodeClass(ClassConstants.FunctionExpression_Class);
return result;
}
/**
* INTERNAL:
* Create the existsNode expression operator
*/
public static ExpressionOperator existsNode() {
ExpressionOperator result = new ExpressionOperator();
List v = new ArrayList<>();
v.add("existsNode(");
v.add(",");
v.add(")");
result.printsAs(v);
result.bePrefix();
result.setSelector(ExistsNode);
result.setNodeClass(ClassConstants.FunctionExpression_Class);
return result;
}
public static ExpressionOperator getStringVal() {
ExpressionOperator result = new ExpressionOperator();
List v = new ArrayList<>();
v.add(".getStringVal()");
result.printsAs(v);
result.bePostfix();
result.setSelector(GetStringVal);
result.setNodeClass(ClassConstants.FunctionExpression_Class);
return result;
}
public static ExpressionOperator getNumberVal() {
ExpressionOperator result = new ExpressionOperator();
List v = new ArrayList<>();
v.add(".getNumberVal()");
result.printsAs(v);
result.bePostfix();
result.setSelector(GetNumberVal);
result.setNodeClass(ClassConstants.FunctionExpression_Class);
return result;
}
public static ExpressionOperator isFragment() {
ExpressionOperator result = new ExpressionOperator();
List v = new ArrayList<>();
v.add(".isFragment()");
result.printsAs(v);
result.bePostfix();
result.setSelector(IsFragment);
result.setNodeClass(ClassConstants.FunctionExpression_Class);
return result;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator floor() {
return simpleFunction(Floor, "FLOOR");
}
/**
* ADVANCED:
* Return the map of all operators.
*/
public static Map getAllOperators() {
return allOperators;
}
/**
* INTERNAL:
*/
public static Map getAllInternalOperators() {
return allInternalOperators;
}
public static Map getPlatformOperatorSelectors() {
return platformOperatorSelectors;
}
/**
* INTERNAL:
*/
public String[] getDatabaseStrings() {
return databaseStrings;
}
/**
* INTERNAL:
*/
public String[] getDatabaseStrings(int arguments) {
return databaseStrings;
}
/**
* INTERNAL:
*/
public String[] getJavaStrings() {
return javaStrings;
}
/**
* INTERNAL:
*/
public Class getNodeClass() {
return nodeClass;
}
/**
* INTERNAL:
* Lookup the operator with the given id.
*
* This will only check user defined operators. For operators defined internally, see {@link ExpressionOperator#getInternalOperator(Integer)}
*/
public static ExpressionOperator getOperator(Integer selector) {
return getAllOperators().get(selector);
}
/**
* INTERNAL:
* Lookup the internal operator with the given id.
*/
public static ExpressionOperator getInternalOperator(Integer selector) {
return getAllInternalOperators().get(selector);
}
/**
* INTERNAL:
* Return the selector id.
*/
public int getSelector() {
return selector;
}
/**
* INTERNAL:
* Return the name.
*/
public String getName() {
return name;
}
/**
* INTERNAL:
* Set the name.
*/
public void setName(String name) {
this.name = name;
}
/**
* ADVANCED:
* Return the type of function.
* This must be one of the static function types defined in this class.
*/
public int getType() {
return this.type;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator greaterThan() {
return ExpressionOperator.simpleRelation(ExpressionOperator.GreaterThan, ">", "greaterThan");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator greaterThanEqual() {
return ExpressionOperator.simpleRelation(ExpressionOperator.GreaterThanEqual, ">=", "greaterThanEqual");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator greatest() {
return simpleTwoArgumentFunction(Greatest, "GREATEST");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator hexToRaw() {
return simpleFunction(HexToRaw, "HEXTORAW");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator ifNull() {
return simpleTwoArgumentFunction(Nvl, "NVL");
}
/**
* INTERNAL:
* Create the IN operator.
*/
public static ExpressionOperator in() {
return simpleRelation(In, "IN");
}
/**
* INTERNAL:
* Create the IN operator taking a subquery.
* Note, the subquery itself comes with parenethesis, so the IN operator
* should not add any parenethesis.
*/
public static ExpressionOperator inSubQuery() {
ExpressionOperator result = new ExpressionOperator();
result.setType(ExpressionOperator.FunctionOperator);
result.setSelector(InSubQuery);
List v = new ArrayList<>(1);
v.add(" IN ");
result.printsAs(v);
result.bePostfix();
result.setNodeClass(ClassConstants.FunctionExpression_Class);
return result;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator initcap() {
return simpleFunction(Initcap, "INITCAP");
}
/**
* INTERNAL:
*/
protected static void initializeAggregateFunctionOperators() {
addOperator(count());
addOperator(sum());
addOperator(average());
addOperator(minimum());
addOperator(maximum());
}
/**
* INTERNAL:
*/
protected static void initializeComparisonOperators() {
// Comparison Operators
addOperator(between());
addOperator(notBetween());
addOperator(isNull());
addOperator(notNull());
}
/**
* INTERNAL:
*/
protected static void initializeFunctionOperators() {
// Function Operators
addOperator(like());
addOperator(likeEscape());
addOperator(notLike());
addOperator(notLikeEscape());
addOperator(exists());
addOperator(notExists());
addOperator(notOperator());
addOperator(as());
addOperator(any());
addOperator(some());
addOperator(all());
addOperator(inSubQuery());
addOperator(notInSubQuery());
addOperator(coalesce());
addOperator(caseStatement());
addOperator(caseConditionStatement());
addOperator(distinct());
}
/**
* INTERNAL:
*/
protected static void initializeLogicalOperators() {
// Logical Operators
addOperator(and());
addOperator(or());
}
/**
* INTERNAL:
*/
protected static void initializeOrderOperators() {
// Order Operators
addOperator(ascending());
addOperator(descending());
addOperator(nullsFirst());
addOperator(nullsLast());
}
/**
* INTERNAL:
*/
protected static void initializeRelationOperators() {
// Relation Operators
addOperator(equal());
addOperator(notEqual());
addOperator(lessThan());
addOperator(lessThanEqual());
addOperator(greaterThan());
addOperator(greaterThanEqual());
addOperator(in());
addOperator(notIn());
}
/**
* INTERNAL:
*/
public static Map initializeOperators() {
resetOperators();
return allOperators;
}
/**
* INTERNAL:
*/
private static Map initializeInternalOperators() {
Map allTempOperators = new HashMap();
// Aggregate Function Operators
addOperator(allTempOperators, count());
addOperator(allTempOperators, sum());
addOperator(allTempOperators, average());
addOperator(allTempOperators, minimum());
addOperator(allTempOperators, maximum());
// Comparison Operators
addOperator(allTempOperators, between());
addOperator(allTempOperators, notBetween());
addOperator(allTempOperators, isNull());
addOperator(allTempOperators, notNull());
// Function Operators
addOperator(allTempOperators, like());
addOperator(allTempOperators, likeEscape());
addOperator(allTempOperators, notLike());
addOperator(allTempOperators, notLikeEscape());
addOperator(allTempOperators, exists());
addOperator(allTempOperators, notExists());
addOperator(allTempOperators, notOperator());
addOperator(allTempOperators, as());
addOperator(allTempOperators, any());
addOperator(allTempOperators, some());
addOperator(allTempOperators, all());
addOperator(allTempOperators, inSubQuery());
addOperator(allTempOperators, notInSubQuery());
addOperator(allTempOperators, coalesce());
addOperator(allTempOperators, caseStatement());
addOperator(allTempOperators, caseConditionStatement());
addOperator(allTempOperators, distinct());
// Logical Operators
addOperator(allTempOperators, and());
addOperator(allTempOperators, or());
// Order Operators
addOperator(allTempOperators, ascending());
addOperator(allTempOperators, descending());
addOperator(allTempOperators, nullsFirst());
addOperator(allTempOperators, nullsLast());
// Relation Operators
addOperator(allTempOperators, equal());
addOperator(allTempOperators, notEqual());
addOperator(allTempOperators, lessThan());
addOperator(allTempOperators, lessThanEqual());
addOperator(allTempOperators, greaterThan());
addOperator(allTempOperators, greaterThanEqual());
addOperator(allTempOperators, in());
addOperator(allTempOperators, notIn());
return allTempOperators;
}
/**
* INTERNAL:
* Initialize a mapping to the platform operator names for usage with exceptions.
*/
public static String getPlatformOperatorName(int operator) {
String name = (String)getPlatformOperatorNames().get(operator);
if (name == null) {
name = String.valueOf(operator);
}
return name;
}
/**
* INTERNAL:
* Initialize a mapping to the platform operator names for usage with exceptions.
*/
public static Map getPlatformOperatorNames() {
return platformOperatorNames;
}
/**
* INTERNAL:
* Initialize a mapping to the platform operator names for usage with exceptions.
*/
public static Map initializePlatformOperatorNames() {
Map platformOperatorNames = new HashMap<>();
platformOperatorNames.put(ToUpperCase, "ToUpperCase");
platformOperatorNames.put(ToLowerCase, "ToLowerCase");
platformOperatorNames.put(Chr, "Chr");
platformOperatorNames.put(Concat, "Concat");
platformOperatorNames.put(Coalesce, "Coalesce");
platformOperatorNames.put(Case, "Case");
platformOperatorNames.put(CaseCondition, "Case(codition)");
platformOperatorNames.put(HexToRaw, "HexToRaw");
platformOperatorNames.put(Initcap, "Initcap");
platformOperatorNames.put(Instring, "Instring");
platformOperatorNames.put(Soundex, "Soundex");
platformOperatorNames.put(LeftPad, "LeftPad");
platformOperatorNames.put(LeftTrim, "LeftTrim");
platformOperatorNames.put(RightPad, "RightPad");
platformOperatorNames.put(RightTrim, "RightTrim");
platformOperatorNames.put(Substring, "Substring");
platformOperatorNames.put(SubstringSingleArg, "Substring");
platformOperatorNames.put(Translate, "Translate");
platformOperatorNames.put(Ascii, "Ascii");
platformOperatorNames.put(Length, "Length");
platformOperatorNames.put(CharIndex, "CharIndex");
platformOperatorNames.put(CharLength, "CharLength");
platformOperatorNames.put(Difference, "Difference");
platformOperatorNames.put(Reverse, "Reverse");
platformOperatorNames.put(Replicate, "Replicate");
platformOperatorNames.put(Right, "Right");
platformOperatorNames.put(Locate, "Locate");
platformOperatorNames.put(Locate2, "Locate");
platformOperatorNames.put(ToNumber, "ToNumber");
platformOperatorNames.put(ToChar, "ToChar");
platformOperatorNames.put(ToCharWithFormat, "ToChar");
platformOperatorNames.put(AddMonths, "AddMonths");
platformOperatorNames.put(DateToString, "DateToString");
platformOperatorNames.put(MonthsBetween, "MonthsBetween");
platformOperatorNames.put(NextDay, "NextDay");
platformOperatorNames.put(RoundDate, "RoundDate");
platformOperatorNames.put(AddDate, "AddDate");
platformOperatorNames.put(DateName, "DateName");
platformOperatorNames.put(DatePart, "DatePart");
platformOperatorNames.put(DateDifference, "DateDifference");
platformOperatorNames.put(TruncateDate, "TruncateDate");
platformOperatorNames.put(Extract, "Extract");
platformOperatorNames.put(Cast, "Cast");
platformOperatorNames.put(NewTime, "NewTime");
platformOperatorNames.put(Nvl, "Nvl");
platformOperatorNames.put(NewTime, "NewTime");
platformOperatorNames.put(Ceil, "Ceil");
platformOperatorNames.put(Cos, "Cos");
platformOperatorNames.put(Cosh, "Cosh");
platformOperatorNames.put(Abs, "Abs");
platformOperatorNames.put(Acos, "Acos");
platformOperatorNames.put(Asin, "Asin");
platformOperatorNames.put(Atan, "Atan");
platformOperatorNames.put(Exp, "Exp");
platformOperatorNames.put(Sqrt, "Sqrt");
platformOperatorNames.put(Floor, "Floor");
platformOperatorNames.put(Ln, "Ln");
platformOperatorNames.put(Log, "Log");
platformOperatorNames.put(Mod, "Mod");
platformOperatorNames.put(Power, "Power");
platformOperatorNames.put(Round, "Round");
platformOperatorNames.put(Sign, "Sign");
platformOperatorNames.put(Sin, "Sin");
platformOperatorNames.put(Sinh, "Sinh");
platformOperatorNames.put(Tan, "Tan");
platformOperatorNames.put(Tanh, "Tanh");
platformOperatorNames.put(Trunc, "Trunc");
platformOperatorNames.put(Greatest, "Greatest");
platformOperatorNames.put(Least, "Least");
platformOperatorNames.put(Add, "Add");
platformOperatorNames.put(Subtract, "Subtract");
platformOperatorNames.put(Divide, "Divide");
platformOperatorNames.put(Multiply, "Multiply");
platformOperatorNames.put(Atan2, "Atan2");
platformOperatorNames.put(Cot, "Cot");
platformOperatorNames.put(Deref, "Deref");
platformOperatorNames.put(Ref, "Ref");
platformOperatorNames.put(RefToHex, "RefToHex");
platformOperatorNames.put(Value, "Value");
platformOperatorNames.put(ExtractXml, "ExtractXml");
platformOperatorNames.put(ExtractValue, "ExtractValue");
platformOperatorNames.put(ExistsNode, "ExistsNode");
platformOperatorNames.put(GetStringVal, "GetStringVal");
platformOperatorNames.put(GetNumberVal, "GetNumberVal");
platformOperatorNames.put(IsFragment, "IsFragment");
platformOperatorNames.put(SDO_WITHIN_DISTANCE, "MDSYS.SDO_WITHIN_DISTANCE");
platformOperatorNames.put(SDO_RELATE, "MDSYS.SDO_RELATE");
platformOperatorNames.put(SDO_FILTER, "MDSYS.SDO_FILTER");
platformOperatorNames.put(SDO_NN, "MDSYS.SDO_NN");
platformOperatorNames.put(NullIf, "NullIf");
platformOperatorNames.put(Regexp, "REGEXP");
platformOperatorNames.put(Union, "UNION");
platformOperatorNames.put(UnionAll, "UNION ALL");
platformOperatorNames.put(Intersect, "INTERSECT");
platformOperatorNames.put(IntersectAll, "INTERSECT ALL");
platformOperatorNames.put(Except, "EXCEPT");
platformOperatorNames.put(ExceptAll, "EXCEPT ALL");
return platformOperatorNames;
}
/**
* INTERNAL:
* Initialize a mapping to the platform operator names for usage with exceptions.
*/
public static Map initializePlatformOperatorSelectors() {
Map platformOperatorNames = new HashMap<>();
platformOperatorNames.put("ToUpperCase", ToUpperCase);
platformOperatorNames.put("ToLowerCase", ToLowerCase);
platformOperatorNames.put("Chr", Chr);
platformOperatorNames.put("Concat", Concat);
platformOperatorNames.put("Coalesce", Coalesce);
platformOperatorNames.put("Case", Case);
platformOperatorNames.put("HexToRaw", HexToRaw);
platformOperatorNames.put("Initcap", Initcap);
platformOperatorNames.put("Instring", Instring);
platformOperatorNames.put("Soundex", Soundex);
platformOperatorNames.put("LeftPad", LeftPad);
platformOperatorNames.put("LeftTrim", LeftTrim);
platformOperatorNames.put("RightPad", RightPad);
platformOperatorNames.put("RightTrim", RightTrim);
platformOperatorNames.put("Substring", Substring);
platformOperatorNames.put("Translate", Translate);
platformOperatorNames.put("Ascii", Ascii);
platformOperatorNames.put("Length", Length);
platformOperatorNames.put("CharIndex", CharIndex);
platformOperatorNames.put("CharLength", CharLength);
platformOperatorNames.put("Difference", Difference);
platformOperatorNames.put("Reverse", Reverse);
platformOperatorNames.put("Replicate", Replicate);
platformOperatorNames.put("Right", Right);
platformOperatorNames.put("Locate", Locate);
platformOperatorNames.put("ToNumber", ToNumber);
platformOperatorNames.put("ToChar", ToChar);
platformOperatorNames.put("AddMonths", AddMonths);
platformOperatorNames.put("DateToString", DateToString);
platformOperatorNames.put("MonthsBetween", MonthsBetween);
platformOperatorNames.put("NextDay", NextDay);
platformOperatorNames.put("RoundDate", RoundDate);
platformOperatorNames.put("AddDate", AddDate);
platformOperatorNames.put("DateName", DateName);
platformOperatorNames.put("DatePart", DatePart);
platformOperatorNames.put("DateDifference", DateDifference);
platformOperatorNames.put("TruncateDate", TruncateDate);
platformOperatorNames.put("NewTime", NewTime);
platformOperatorNames.put("Nvl", Nvl);
platformOperatorNames.put("NewTime", NewTime);
platformOperatorNames.put("Ceil", Ceil);
platformOperatorNames.put("Cos", Cos);
platformOperatorNames.put("Cosh", Cosh);
platformOperatorNames.put("Abs", Abs);
platformOperatorNames.put("Acos", Acos);
platformOperatorNames.put("Asin", Asin);
platformOperatorNames.put("Atan", Atan);
platformOperatorNames.put("Exp", Exp);
platformOperatorNames.put("Sqrt", Sqrt);
platformOperatorNames.put("Floor", Floor);
platformOperatorNames.put("Ln", Ln);
platformOperatorNames.put("Log", Log);
platformOperatorNames.put("Mod", Mod);
platformOperatorNames.put("Power", Power);
platformOperatorNames.put("Round", Round);
platformOperatorNames.put("Sign", Sign);
platformOperatorNames.put("Sin", Sin);
platformOperatorNames.put("Sinh", Sinh);
platformOperatorNames.put("Tan", Tan);
platformOperatorNames.put("Tanh", Tanh);
platformOperatorNames.put("Trunc", Trunc);
platformOperatorNames.put("Greatest", Greatest);
platformOperatorNames.put("Least", Least);
platformOperatorNames.put("Add", Add);
platformOperatorNames.put("Subtract", Subtract);
platformOperatorNames.put("Divide", Divide);
platformOperatorNames.put("Multiply", Multiply);
platformOperatorNames.put("Atan2", Atan2);
platformOperatorNames.put("Cot", Cot);
platformOperatorNames.put("Deref", Deref);
platformOperatorNames.put("Ref", Ref);
platformOperatorNames.put("RefToHex", RefToHex);
platformOperatorNames.put("Value", Value);
platformOperatorNames.put("Cast", Cast);
platformOperatorNames.put("Extract", Extract);
platformOperatorNames.put("ExtractXml", ExtractXml);
platformOperatorNames.put("ExtractValue", ExtractValue);
platformOperatorNames.put("ExistsNode", ExistsNode);
platformOperatorNames.put("GetStringVal", GetStringVal);
platformOperatorNames.put("GetNumberVal", GetNumberVal);
platformOperatorNames.put("IsFragment", IsFragment);
platformOperatorNames.put("SDO_WITHIN_DISTANCE", SDO_WITHIN_DISTANCE);
platformOperatorNames.put("SDO_RELATE", SDO_RELATE);
platformOperatorNames.put("SDO_FILTER", SDO_FILTER);
platformOperatorNames.put("SDO_NN", SDO_NN);
platformOperatorNames.put("NullIf", NullIf);
return platformOperatorNames;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator instring() {
return simpleTwoArgumentFunction(Instring, "INSTR");
}
/**
* Aggregate functions are function in the select such as COUNT.
*/
public boolean isAggregateOperator() {
return getType() == AggregateOperator;
}
/**
* Comparison functions are functions such as = and {@literal >}.
*/
public boolean isComparisonOperator() {
return getType() == ComparisonOperator;
}
/**
* INTERNAL:
* If we have all the required information, this operator is complete
* and can be used as is. Otherwise we will need to look up a platform-
* specific operator.
*/
public boolean isComplete() {
return (databaseStrings != null) && (databaseStrings.length != 0);
}
/**
* General functions are any normal function such as UPPER.
*/
public boolean isFunctionOperator() {
return getType() == FunctionOperator;
}
/**
* Logical functions are functions such as and and or.
*/
public boolean isLogicalOperator() {
return getType() == LogicalOperator;
}
/**
* INTERNAL:
* Create the ISNULL operator.
*/
public static ExpressionOperator isNull() {
ExpressionOperator result = new ExpressionOperator();
result.setType(ComparisonOperator);
result.setSelector(IsNull);
List v = new ArrayList<>();
v.add("(");
v.add(" IS NULL)");
result.printsAs(v);
result.bePrefix();
result.printsJavaAs(".isNull()");
result.setNodeClass(ClassConstants.FunctionExpression_Class);
return result;
}
/**
* Order functions are used in the order by such as ASC.
*/
public boolean isOrderOperator() {
return getType() == OrderOperator;
}
/**
* ADVANCED:
* Return true if this is a prefix operator.
*/
public boolean isPrefix() {
return isPrefix;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator lastDay() {
return simpleFunction(LastDay, "LAST_DAY");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator least() {
return simpleTwoArgumentFunction(Least, "LEAST");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator leftPad() {
return simpleThreeArgumentFunction(LeftPad, "LPAD");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator leftTrim() {
return simpleFunction(LeftTrim, "LTRIM");
}
/**
* INTERNAL:
* Build leftTrim operator that takes one parameter.
*/
public static ExpressionOperator leftTrim2() {
ExpressionOperator operator = simpleTwoArgumentFunction(LeftTrim2, "LTRIM");
return operator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator length() {
return simpleFunction(Length, "LENGTH");
}
public static ExpressionOperator lessThan() {
return ExpressionOperator.simpleRelation(ExpressionOperator.LessThan, "<", "lessThan");
}
public static ExpressionOperator lessThanEqual() {
return ExpressionOperator.simpleRelation(ExpressionOperator.LessThanEqual, "<=", "lessThanEqual");
}
/**
* INTERNAL:
* Create the LIKE operator.
*/
public static ExpressionOperator like() {
ExpressionOperator result = new ExpressionOperator();
result.setSelector(Like);
result.setType(FunctionOperator);
List v = new ArrayList<>(3);
v.add("");
v.add(" LIKE ");
v.add("");
result.printsAs(v);
result.bePrefix();
result.setNodeClass(ClassConstants.FunctionExpression_Class);
v = new ArrayList<>(2);
v.add(".like(");
v.add(")");
result.printsJavaAs(v);
return result;
}
/**
* INTERNAL:
* Create the REGEXP operator.
* REGEXP allows for comparison through regular expression,
* this is supported by many databases and with be part of the next SQL standard.
*/
public static ExpressionOperator regexp() {
ExpressionOperator result = new ExpressionOperator();
result.setSelector(Regexp);
result.setType(FunctionOperator);
List v = new ArrayList<>(3);
v.add("");
v.add(" REGEXP ");
v.add("");
result.printsAs(v);
result.bePrefix();
result.setNodeClass(ClassConstants.FunctionExpression_Class);
v = new ArrayList<>(2);
v.add(".regexp(");
v.add(")");
result.printsJavaAs(v);
return result;
}
/**
* INTERNAL:
* Create the LIKE operator with ESCAPE.
*/
public static ExpressionOperator likeEscape() {
ExpressionOperator result = new ExpressionOperator();
result.setSelector(LikeEscape);
result.setType(FunctionOperator);
List v = new ArrayList<>();
v.add("");
v.add(" LIKE ");
v.add(" ESCAPE ");
v.add("");
result.printsAs(v);
result.bePrefix();
result.setNodeClass(ClassConstants.FunctionExpression_Class);
result.setIsBindingSupported(false);
return result;
}
/**
* INTERNAL:
* Create the LIKE operator with ESCAPE.
*/
public static ExpressionOperator notLikeEscape() {
ExpressionOperator result = new ExpressionOperator();
result.setSelector(NotLikeEscape);
result.setType(FunctionOperator);
List v = new ArrayList<>();
v.add("");
v.add(" NOT LIKE ");
v.add(" ESCAPE ");
v.add("");
result.printsAs(v);
result.bePrefix();
result.setNodeClass(ClassConstants.FunctionExpression_Class);
result.setIsBindingSupported(false);
return result;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator ln() {
return simpleFunction(Ln, "LN");
}
/**
* INTERNAL:
* Build locate operator i.e. LOCATE("ob", t0.F_NAME)
*/
public static ExpressionOperator locate() {
ExpressionOperator expOperator = simpleTwoArgumentFunction(Locate, "LOCATE");
int[] argumentIndices = new int[2];
argumentIndices[0] = 1;
argumentIndices[1] = 0;
expOperator.setArgumentIndices(argumentIndices);
expOperator.setIsBindingSupported(false);
return expOperator;
}
/**
* INTERNAL:
* Build locate operator with 3 params i.e. LOCATE("coffee", t0.DESCRIP, 4).
* Last parameter is a start at.
*/
public static ExpressionOperator locate2() {
ExpressionOperator expOperator = simpleThreeArgumentFunction(Locate2, "LOCATE");
int[] argumentIndices = new int[3];
argumentIndices[0] = 1;
argumentIndices[1] = 0;
argumentIndices[2] = 2;
expOperator.setArgumentIndices(argumentIndices);
expOperator.setIsBindingSupported(false);
return expOperator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator log() {
return simpleFunction(Log, "LOG");
}
/**
* INTERNAL:
* Create the MAXIMUM operator.
*/
public static ExpressionOperator maximum() {
return simpleAggregate(Maximum, "MAX", "maximum");
}
/**
* INTERNAL:
* Create the MINIMUM operator.
*/
public static ExpressionOperator minimum() {
return simpleAggregate(Minimum, "MIN", "minimum");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator mod() {
ExpressionOperator operator = simpleTwoArgumentFunction(Mod, "MOD");
operator.setIsBindingSupported(false);
return operator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator monthsBetween() {
return simpleTwoArgumentFunction(MonthsBetween, "MONTHS_BETWEEN");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator multiply() {
return ExpressionOperator.simpleMath(ExpressionOperator.Multiply, "*");
}
/**
* INTERNAL:
* Create a new expression. Optimized for the single argument case.
*/
public Expression newExpressionForArgument(Expression base, Object singleArgument) {
if (singleArgument == null) {
if (this.selector == Equal) {
return base.isNull();
} else if (this.selector == NotEqual) {
return base.notNull();
}
}
Expression node = createNode();
node.create(base, singleArgument, this);
return node;
}
/**
* INTERNAL:
* Instantiate an instance of the operator's node class.
*/
protected Expression createNode() {
// PERF: Avoid reflection for common cases.
if (this.nodeClass == ClassConstants.ArgumentListFunctionExpression_Class){
return new ArgumentListFunctionExpression();
} else if (this.nodeClass == ClassConstants.FunctionExpression_Class) {
return new FunctionExpression();
} else if (this.nodeClass == ClassConstants.RelationExpression_Class) {
return new RelationExpression();
} else if (this.nodeClass == ClassConstants.LogicalExpression_Class) {
return new LogicalExpression();
}
try {
return (Expression) PrivilegedAccessHelper.callDoPrivilegedWithException(
() -> PrivilegedAccessHelper.newInstanceFromClass(getNodeClass())
);
} catch (Exception ex) {
throw new InternalError(ex.toString());
}
}
/**
* INTERNAL:
* Create a new expression. Optimized for the single argument case with base last
*/
public Expression newExpressionForArgumentWithBaseLast(Expression base, Object singleArgument) {
if (singleArgument == null) {
if (this.selector == Equal) {
return base.isNull();
} else if (this.selector == NotEqual) {
return base.notNull();
}
}
Expression node = createNode();
node.createWithBaseLast(base, singleArgument, this);
return node;
}
/**
* INTERNAL:
* The general case.
*/
public Expression newExpressionForArguments(Expression base, List arguments) {
if ((arguments.size() == 1) && (arguments.get(0) == null)) {
if (this.selector == Equal) {
return base.isNull();
} else if (this.selector == NotEqual) {
return base.notNull();
}
}
Expression node = createNode();
node.create(base, arguments, this);
return node;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator negate() {
return simpleFunction(Negate, "-");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator newTime() {
return simpleThreeArgumentFunction(NewTime, "NEW_TIME");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator nextDay() {
return simpleTwoArgumentFunction(NextDay, "NEXT_DAY");
}
public static ExpressionOperator notEqual() {
return ExpressionOperator.simpleRelation(ExpressionOperator.NotEqual, "<>", "notEqual");
}
/**
* INTERNAL:
* Create the NOT EXISTS operator.
*/
public static ExpressionOperator notExists() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(NotExists);
List v = new ArrayList<>(2);
v.add("NOT EXISTS ");
v.add("");
exOperator.printsAs(v);
exOperator.bePrefix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create the NOTIN operator.
*/
public static ExpressionOperator notIn() {
return simpleRelation(NotIn, "NOT IN");
}
/**
* INTERNAL:
* Create the NOTIN operator taking a subQuery.
* Note, the subquery itself comes with parenethesis, so the IN operator
* should not add any parenethesis.
*/
public static ExpressionOperator notInSubQuery() {
ExpressionOperator result = new ExpressionOperator();
result.setType(ExpressionOperator.FunctionOperator);
result.setSelector(NotInSubQuery);
List v = new ArrayList<>(1);
v.add(" NOT IN ");
result.printsAs(v);
result.bePostfix();
result.setNodeClass(ClassConstants.FunctionExpression_Class);
return result;
}
/**
* INTERNAL:
* Create the NOTLIKE operator.
*/
public static ExpressionOperator notLike() {
ExpressionOperator result = new ExpressionOperator();
result.setSelector(NotLike);
result.setType(FunctionOperator);
List v = new ArrayList<>();
v.add("");
v.add(" NOT LIKE ");
v.add("");
result.printsAs(v);
result.bePrefix();
result.setNodeClass(ClassConstants.FunctionExpression_Class);
v = new ArrayList<>(2);
v.add(".notLike(");
v.add(")");
result.printsJavaAs(v);
return result;
}
/**
* INTERNAL:
* Create the NOTNULL operator.
*/
public static ExpressionOperator notNull() {
ExpressionOperator result = new ExpressionOperator();
result.setType(ComparisonOperator);
result.setSelector(NotNull);
List v = new ArrayList<>();
v.add("(");
v.add(" IS NOT NULL)");
result.printsAs(v);
result.bePrefix();
result.printsJavaAs(".notNull()");
result.setNodeClass(ClassConstants.FunctionExpression_Class);
return result;
}
/**
* INTERNAL:
* Create the NOT operator.
*/
public static ExpressionOperator notOperator() {
ExpressionOperator result = new ExpressionOperator();
result.setSelector(Not);
List v = new ArrayList<>();
v.add("NOT (");
v.add(")");
result.printsAs(v);
result.bePrefix();
result.printsJavaAs(".not()");
result.setNodeClass(ClassConstants.FunctionExpression_Class);
return result;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator nullIf() {
return simpleTwoArgumentFunction(NullIf, "NULLIF");
}
/**
* INTERNAL:
* Create the OR operator.
*/
public static ExpressionOperator or() {
return simpleLogical(Or, "OR", "or");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator power() {
return simpleTwoArgumentFunction(Power, "POWER");
}
/**
* INTERNAL: Print the collection onto the SQL stream.
*/
public void printCollection(List items, ExpressionSQLPrinter printer) {
/*
* If this ExpressionOperator does not support binding, and the platform allows,
* then disable binding for the whole query
*/
if (printer.getPlatform().isDynamicSQLRequiredForFunctions() && Boolean.FALSE.equals(isBindingSupported())) {
printer.getCall().setUsesBinding(false);
}
int dbStringIndex = 0;
if (isPrefix()) {
printer.printString(getDatabaseStrings()[0]);
dbStringIndex = 1;
}
int[] indices = getArgumentIndices(items.size());
String[] dbStrings = getDatabaseStrings(items.size());
for (int i = 0; i < indices.length; i++) {
final int index = indices[i];
Expression item = items.get(index);
if ((this.selector == Ref) || ((this.selector == Deref) && (item.isObjectExpression()))) {
DatabaseTable alias = item.aliasForTable(((ObjectExpression)item).getDescriptor().getTables().firstElement());
printer.printString(alias.getNameDelimited(printer.getPlatform()));
} else if ((this.selector == Count) && (item.isExpressionBuilder())) {
printer.printString("*");
} else {
item.printSQL(printer);
}
if (dbStringIndex < dbStrings.length) {
printer.printString(dbStrings[dbStringIndex++]);
}
}
}
/**
* INTERNAL: Print the collection onto the SQL stream.
*/
public void printJavaCollection(List items, ExpressionJavaPrinter printer) {
int javaStringIndex = 0;
for (int i = 0; i < items.size(); i++) {
Expression item = items.get(i);
item.printJava(printer);
if (javaStringIndex < getJavaStrings().length) {
printer.printString(getJavaStrings()[javaStringIndex++]);
}
}
}
/**
* INTERNAL:
* For performance, special case printing two children, since it's by far the most common
*/
public void printDuo(Expression first, Expression second, ExpressionSQLPrinter printer) {
/*
* If this ExpressionOperator does not support binding, and the platform allows,
* then disable binding for the whole query
*/
if (printer.getPlatform().isDynamicSQLRequiredForFunctions() && Boolean.FALSE.equals(isBindingSupported())) {
printer.getCall().setUsesBinding(false);
}
int dbStringIndex = 0;
if (isPrefix()) {
printer.printString(getDatabaseStrings()[0]);
dbStringIndex = 1;
}
first.printSQL(printer);
if (dbStringIndex < getDatabaseStrings().length) {
printer.printString(getDatabaseStrings()[dbStringIndex++]);
}
if (second != null) {
second.printSQL(printer);
if (dbStringIndex < getDatabaseStrings().length) {
printer.printString(getDatabaseStrings()[dbStringIndex++]);
}
}
}
/**
* INTERNAL:
* For performance, special case printing two children, since it's by far the most common
*/
public void printJavaDuo(Expression first, Expression second, ExpressionJavaPrinter printer) {
int javaStringIndex = 0;
first.printJava(printer);
if (javaStringIndex < getJavaStrings().length) {
printer.printString(getJavaStrings()[javaStringIndex++]);
}
if (second != null) {
second.printJava(printer);
if (javaStringIndex < getJavaStrings().length) {
printer.printString(getJavaStrings()[javaStringIndex]);
}
}
}
/**
* ADVANCED:
* Set the single string for this operator.
*/
public void printsAs(String s) {
List v = new ArrayList<>(1);
v.add(s);
printsAs(v);
}
/**
* ADVANCED:
* Set the strings for this operator.
*/
public void printsAs(List dbStrings) {
this.databaseStrings = new String[dbStrings.size()];
for (int i = 0; i < dbStrings.size(); i++) {
getDatabaseStrings()[i] = dbStrings.get(i);
}
}
/**
* ADVANCED:
* Set the single string for this operator.
*/
public void printsJavaAs(String s) {
List v = new ArrayList<>(1);
v.add(s);
printsJavaAs(v);
}
/**
* ADVANCED:
* Set the strings for this operator.
*/
public void printsJavaAs(List dbStrings) {
this.javaStrings = new String[dbStrings.size()];
for (int i = 0; i < dbStrings.size(); i++) {
getJavaStrings()[i] = dbStrings.get(i);
}
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator ref() {
return simpleFunction(Ref, "REF");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator refToHex() {
return simpleFunction(RefToHex, "REFTOHEX");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator replace() {
ExpressionOperator operator = simpleThreeArgumentFunction(Replace, "REPLACE");
operator.setIsBindingSupported(false);
return operator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator replicate() {
return simpleTwoArgumentFunction(Replicate, "REPLICATE");
}
/**
* INTERNAL:
* Reset all the operators.
*/
public static void resetOperators() {
allOperators = new HashMap();
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator reverse() {
return simpleFunction(Reverse, "REVERSE");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator right() {
return simpleTwoArgumentFunction(Right, "RIGHT");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator rightPad() {
return simpleThreeArgumentFunction(RightPad, "RPAD");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator rightTrim() {
return simpleFunction(RightTrim, "RTRIM");
}
/**
* INTERNAL:
* Build rightTrim operator that takes one parameter.
*/
public static ExpressionOperator rightTrim2() {
// bug 2916893 rightTrim(substring) broken
ExpressionOperator operator = simpleTwoArgumentFunction(RightTrim2, "RTRIM");
return operator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator round() {
return simpleTwoArgumentFunction(Round, "ROUND");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator roundDate() {
return simpleTwoArgumentFunction(RoundDate, "ROUND");
}
/**
* ADVANCED: Set the array of indexes to use when building the SQL function.
*
* The index of the array is the position in the printout, from left to right, starting with zero.
* The value of the array entry is the number of the argument to print at that particular output position.
* So each argument can be used zero, one or many times.
*/
public void setArgumentIndices(int[] indices) {
argumentIndices = indices;
}
/**
* Return the argumentIndices if set, otherwise initialize argumentIndices to the provided size
*/
public int[] getArgumentIndices(int size) {
int[] indices = this.argumentIndices;
if (indices != null) {
return indices;
}
indices = new int[size];
for (int i = 0; i < indices.length; i++) {
indices[i] = i;
}
this.argumentIndices = indices;
return indices;
}
/**
* ADVANCED:
* Set the node class for this operator. For user-defined functions this is
* set automatically but can be changed.
* A list of Operator types, an example, and the node class used follows.
*
LogicalOperator AND LogicalExpression
*
ComparisonOperator {@literal <>} RelationExpression
*
AggregateOperator COUNT FunctionExpression
*
OrderOperator ASCENDING "
*
FunctionOperator RTRIM "
*
Node classes given belong to org.eclipse.persistence.internal.expressions.
*/
public void setNodeClass(Class nodeClass) {
this.nodeClass = nodeClass;
}
/**
* INTERNAL:
* Set the selector id.
*/
public void setSelector(int selector) {
this.selector = selector;
}
/**
* ADVANCED:
* Set the type of function.
* This must be one of the static function types defined in this class.
*/
public void setType(int type) {
this.type = type;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator sign() {
return simpleFunction(Sign, "SIGN");
}
/**
* INTERNAL:
* Create an operator for a simple aggregate given a Java name and a single
* String for the database (parentheses will be added automatically).
*/
public static ExpressionOperator simpleAggregate(int selector, String databaseName, String javaName) {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(AggregateOperator);
exOperator.setSelector(selector);
List v = new ArrayList<>(2);
v.add(databaseName + "(");
v.add(")");
exOperator.printsAs(v);
exOperator.bePrefix();
exOperator.printsJavaAs("." + javaName + "()");
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create an operator for a simple function given a Java name and a single
* String for the database (parentheses will be added automatically).
*/
public static ExpressionOperator simpleFunction(int selector, String databaseName) {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(selector);
exOperator.setName(databaseName);
List v = new ArrayList<>(2);
v.add(databaseName + "(");
v.add(")");
exOperator.printsAs(v);
exOperator.bePrefix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create an operator for a simple function call without parentheses
*/
public static ExpressionOperator simpleFunctionNoParentheses(int selector, String databaseName) {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(selector);
List v = new ArrayList<>(1);
v.add(databaseName);
exOperator.printsAs(v);
exOperator.bePrefix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create an operator for a simple function given a Java name and a single
* String for the database (parentheses will be added automatically).
*/
public static ExpressionOperator simpleFunction(int selector, String databaseName, String javaName) {
ExpressionOperator exOperator = simpleFunction(selector, databaseName);
exOperator.printsJavaAs("." + javaName + "()");
return exOperator;
}
/**
* INTERNAL:
* Create an operator for a simple logical given a Java name and a single
* String for the database (parentheses will be added automatically).
*/
public static ExpressionOperator simpleLogical(int selector, String databaseName, String javaName) {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(LogicalOperator);
exOperator.setSelector(selector);
exOperator.printsAs(" " + databaseName + " ");
exOperator.bePostfix();
List v = new ArrayList<>(2);
v.add("." + javaName + "(");
v.add(")");
exOperator.printsJavaAs(v);
exOperator.setNodeClass(ClassConstants.LogicalExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create an operator for a simple math operation, i.e. +, -, *, /
*/
public static ExpressionOperator simpleMath(int selector, String databaseName) {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(selector);
List v = new ArrayList<>(3);
v.add("(");
v.add(" " + databaseName + " ");
v.add(")");
exOperator.printsAs(v);
exOperator.bePrefix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
exOperator.setIsBindingSupported(false);
return exOperator;
}
/**
* INTERNAL:
* Create an operator for a simple ordering given a Java name and a single
* String for the database (parentheses will be added automatically).
*/
public static ExpressionOperator simpleOrdering(int selector, String databaseName, String javaName) {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(OrderOperator);
exOperator.setSelector(selector);
exOperator.printsAs(" " + databaseName);
exOperator.bePostfix();
exOperator.printsJavaAs("." + javaName + "()");
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create an operator for a simple relation given a Java name and a single
* String for the database (parentheses will be added automatically).
*/
public static ExpressionOperator simpleRelation(int selector, String databaseName) {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(ComparisonOperator);
exOperator.setSelector(selector);
exOperator.printsAs(" " + databaseName + " ");
exOperator.bePostfix();
exOperator.setNodeClass(ClassConstants.RelationExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create an operator for a simple relation given a Java name and a single
* String for the database (parentheses will be added automatically).
*/
public static ExpressionOperator simpleRelation(int selector, String databaseName, String javaName) {
ExpressionOperator exOperator = simpleRelation(selector, databaseName);
List v = new ArrayList<>(2);
v.add("." + javaName + "(");
v.add(")");
exOperator.printsJavaAs(v);
return exOperator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator simpleThreeArgumentFunction(int selector, String dbString) {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(selector);
exOperator.setName(dbString);
List v = new ArrayList<>(4);
v.add(dbString + "(");
v.add(", ");
v.add(", ");
v.add(")");
exOperator.printsAs(v);
exOperator.bePrefix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator simpleTwoArgumentFunction(int selector, String dbString) {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(selector);
exOperator.setName(dbString);
List v = new ArrayList<>(5);
v.add(dbString + "(");
v.add(", ");
v.add(")");
exOperator.printsAs(v);
exOperator.bePrefix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* e.g.: ... "Bob" CONCAT "Smith" ...
* Parentheses will not be addded. [RMB - March 5 2000]
*/
public static ExpressionOperator simpleLogicalNoParens(int selector, String dbString) {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(selector);
List v = new ArrayList<>(5);
v.add("");
v.add(" " + dbString + " ");
v.add("");
exOperator.printsAs(v);
exOperator.bePrefix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator sin() {
return simpleFunction(Sin, "SIN");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator sinh() {
return simpleFunction(Sinh, "SINH");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator soundex() {
return simpleFunction(Soundex, "SOUNDEX");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator sqrt() {
return simpleFunction(Sqrt, "SQRT");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator standardDeviation() {
return simpleAggregate(StandardDeviation, "STDDEV", "standardDeviation");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator substring() {
ExpressionOperator operator = simpleThreeArgumentFunction(Substring, "SUBSTR");
operator.setIsBindingSupported(false);
return operator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator substringSingleArg() {
return simpleTwoArgumentFunction(SubstringSingleArg, "SUBSTR");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator subtract() {
return ExpressionOperator.simpleMath(ExpressionOperator.Subtract, "-");
}
/**
* INTERNAL:
* Create the SUM operator.
*/
public static ExpressionOperator sum() {
return simpleAggregate(Sum, "SUM", "sum");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator tan() {
return simpleFunction(Tan, "TAN");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator tanh() {
return simpleFunction(Tanh, "TANH");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator toDate() {
return simpleFunction(ToDate, "TO_DATE");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator today() {
return currentTimeStamp();
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator currentTimeStamp() {
return simpleFunctionNoParentheses(Today, "CURRENT_TIMESTAMP");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator currentDate() {
return simpleFunctionNoParentheses(CurrentDate, "CURRENT_DATE");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator currentTime() {
return simpleFunctionNoParentheses(CurrentTime, "CURRENT_TIME");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator localDate() {
return simpleFunctionNoParentheses(LocalDate, "CURRENT_DATE");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator localTime() {
return simpleFunctionNoParentheses(LocalTime, "CURRENT_TIME");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator localDateTime() {
return simpleFunctionNoParentheses(LocalDateTime, "CURRENT_TIMESTAMP");
}
/**
* INTERNAL:
* Create the toLowerCase operator.
*/
public static ExpressionOperator toLowerCase() {
return simpleFunction(ToLowerCase, "LOWER", "toLowerCase");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator toNumber() {
return simpleFunction(ToNumber, "TO_NUMBER");
}
/**
* Print a debug representation of this operator.
*/
@Override
public String toString() {
String[] dbStrings = getDatabaseStrings();
if ((dbStrings == null) || (dbStrings.length == 0)) {
//CR#... Print a useful name for the missing platform operator.
return "platform operator - " + getPlatformOperatorName(this.selector);
} else {
return "operator " + Arrays.asList(dbStrings);
}
}
/**
* INTERNAL:
* Create the TOUPPERCASE operator.
*/
public static ExpressionOperator toUpperCase() {
return simpleFunction(ToUpperCase, "UPPER", "toUpperCase");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator translate() {
ExpressionOperator operator = simpleThreeArgumentFunction(Translate, "TRANSLATE");
operator.setIsBindingSupported(false);
return operator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator trim() {
return simpleFunction(Trim, "TRIM");
}
/**
* INTERNAL:
* Build Trim operator.
*/
public static ExpressionOperator trim2() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(Trim2);
List v = new ArrayList<>(5);
v.add("TRIM(");
v.add(" FROM ");
v.add(")");
exOperator.printsAs(v);
exOperator.bePrefix();
// Bug 573094
int[] indices = { 1, 0 };
exOperator.setArgumentIndices(indices);
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
exOperator.setIsBindingSupported(false);
return exOperator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator trunc() {
return simpleTwoArgumentFunction(Trunc, "TRUNC");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator truncateDate() {
return simpleTwoArgumentFunction(TruncateDate, "TRUNC");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator cast() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(Cast);
exOperator.setName("CAST");
List v = new ArrayList<>(5);
v.add("CAST(");
v.add(" AS ");
v.add(")");
exOperator.printsAs(v);
exOperator.bePrefix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator extract() {
return new ExtractOperator();
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator value() {
return simpleFunction(Value, "VALUE");
}
/**
* INTERNAL:
* Build operator.
*/
public static ExpressionOperator variance() {
return simpleAggregate(Variance, "VARIANCE", "variance");
}
/**
* INTERNAL:
* Create the ANY operator.
*/
public static ExpressionOperator any() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(Any);
exOperator.printsAs("ANY");
exOperator.bePostfix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create the SOME operator.
*/
public static ExpressionOperator some() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(Some);
exOperator.printsAs("SOME");
exOperator.bePostfix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create the ALL operator.
*/
public static ExpressionOperator all() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(All);
exOperator.printsAs("ALL");
exOperator.bePostfix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create the UNION operator.
*/
public static ExpressionOperator union() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(Union);
exOperator.printsAs("UNION ");
exOperator.bePostfix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create the UNION ALL operator.
*/
public static ExpressionOperator unionAll() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(UnionAll);
exOperator.printsAs("UNION ALL ");
exOperator.bePostfix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create the INTERSECT operator.
*/
public static ExpressionOperator intersect() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(Intersect);
exOperator.printsAs("INTERSECT ");
exOperator.bePostfix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create the INTERSECT ALL operator.
*/
public static ExpressionOperator intersectAll() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(IntersectAll);
exOperator.printsAs("INTERSECT ALL ");
exOperator.bePostfix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create the EXCEPT operator.
*/
public static ExpressionOperator except() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(Except);
exOperator.printsAs("EXCEPT ");
exOperator.bePostfix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Create the EXCEPT ALL operator.
*/
public static ExpressionOperator exceptAll() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(FunctionOperator);
exOperator.setSelector(ExceptAll);
exOperator.printsAs("EXCEPT ALL ");
exOperator.bePostfix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}
/**
* INTERNAL:
* Indicates whether operator has selector Any or Some
*/
public boolean isAny() {
return selector == ExpressionOperator.Any ||
selector == ExpressionOperator.Some;
}
/**
* INTERNAL:
* Indicates whether operator has selector All
*/
public boolean isAll() {
return selector == ExpressionOperator.All;
}
/**
* INTERNAL:
* Indicates whether operator has selector Any, Some or All
*/
public boolean isAnyOrAll() {
return isAny() || isAll();
}
}