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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.openjpa.persistence.query;
import java.io.Serializable;
import java.util.Calendar;
import java.util.Date;
/**
* An abstract expression acts as a factory for concrete unary or binary
* expressions such as ABS() or PLUS().
*
* @author Pinaki Poddar
*
*/
abstract class ExpressionImpl extends AbstractVisitable
implements Expression, Visitable {
public Expression abs() {
return new AbsExpression(this);
}
public Expression concat(String... str) {
ConstantExpression[] exprs = new ConstantExpression[str.length];
for (int i = 0; i < str.length; i++)
exprs[i] = new ConstantExpression(str[i]);
return new ConcatExpression(new VarArgsExpression(exprs));
}
public Expression concat(Expression... exprs) {
return new ConcatExpression(new VarArgsExpression(exprs));
}
public Expression dividedBy(Number num) {
return new DividedByExpression(this, new ConstantExpression(num));
}
public Expression dividedBy(Expression expr) {
return new DividedByExpression(this, expr);
}
public Predicate in(String... strings) {
return new InExpression(this, new ArrayExpression(strings));
}
public Predicate in(Number... nums) {
return new InExpression(this, new ArrayExpression(nums));
}
public Predicate in(Enum... enums) {
return new InExpression(this, new ArrayExpression(enums));
}
public Predicate in(Class... classes) {
return new InExpression(this, new ArrayExpression(classes));
}
public Predicate in(Expression... params) {
return new InExpression(this, new ArrayExpression(params));
}
public Predicate in(Subquery subquery) {
return new InExpression(this, (Expression)subquery);
}
public Predicate isNull() {
return new IsNullExpression(this);
}
public Expression length() {
return new LengthExpression(this);
}
public Expression locate(String str) {
return new LocateExpression(this, str, 0);
}
public Expression locate(Expression expr) {
return new LocateExpression(this, expr, 1);
}
public Expression locate(String str, int position) {
return new LocateExpression(this, str, position);
}
public Expression locate(String str, Expression position) {
return new LocateExpression(this, str, position);
}
public Expression locate(Expression str, int position) {
return new LocateExpression(this, str, position);
}
public Expression locate(Expression str, Expression position) {
return new LocateExpression(this, str, position);
}
public Expression lower() {
return new LowerExpression(this);
}
public Predicate member(PathExpression arg) {
return new MemberOfExpression(this, arg);
}
public Expression minus() {
return new UnaryMinusExpression(this);
}
public Expression minus(Number num) {
return new MinusExpression(this, new ConstantExpression(num));
}
public Expression minus(Expression expr) {
return new MinusExpression(this, expr);
}
public Expression mod(int num) {
return new ModExpression(this, new ConstantExpression(num));
}
public Expression mod(Expression expr) {
return new MinusExpression(this, expr);
}
public Expression plus(Number num) {
return new PlusExpression(this, new ConstantExpression(num));
}
public Expression plus(Expression expr) {
return new PlusExpression(this, expr);
}
public Expression sqrt() {
return new SquareRootExpression(this);
}
public Expression substring(int start) {
return new SubStringExpression(this, start);
}
public Expression substring(Expression start) {
return new SubStringExpression(this, start);
}
public Expression substring(int start, int len) {
return new SubStringExpression(this, start, len);
}
public Expression substring(int start, Expression len) {
return new SubStringExpression(this, new ConstantExpression(start),
len);
}
public Expression substring(Expression start, int len) {
return new SubStringExpression(this, start,
new ConstantExpression(len));
}
public Expression substring(Expression start, Expression len) {
return new SubStringExpression(this, start, len);
}
public Expression times(Number num) {
return new TimesExpression(this, new ConstantExpression(num));
}
public Expression times(Expression expr) {
return new TimesExpression(this, expr);
}
public Expression trim() {
return new TrimExpression(this, null, null);
}
public Expression trim(TrimSpec spec) {
return new TrimExpression(this, null, spec);
}
public Expression trim(char c) {
return new TrimExpression(this, c, null);
}
public Expression trim(char c, TrimSpec spec) {
return new TrimExpression(this, c, spec);
}
public Expression trim(Expression expr) {
return new TrimExpression(this, expr, null);
}
public Expression trim(Expression expr, TrimSpec spec) {
return new TrimExpression(this, expr, spec);
}
public Expression upper() {
return new UpperExpression(this);
}
public OrderByItem asc() {
return new OrderableItem(this, true);
}
public OrderByItem desc() {
return new OrderableItem(this, false);
}
public Predicate between(PredicateOperand arg1, PredicateOperand arg2) {
return new BetweenExpression(this, new RangeExpression(
(Expression)arg1, (Expression)arg2));
}
public Predicate between(PredicateOperand arg1, Number arg2) {
return new BetweenExpression(this, new RangeExpression(
(Expression)arg1, new ConstantExpression(arg2)));
}
public Predicate between(Number arg1, PredicateOperand arg2) {
return new BetweenExpression(this, new RangeExpression(
new ConstantExpression(arg1), (Expression)arg2));
}
public Predicate between(Number arg1, Number arg2) {
return new BetweenExpression(this, new RangeExpression(
new ConstantExpression(arg1), new ConstantExpression(arg2)));
}
public Predicate between(PredicateOperand arg1, String arg2) {
return new BetweenExpression(this, new RangeExpression((Expression)arg1,
new ConstantExpression(arg2)));
}
public Predicate between(String arg1, PredicateOperand arg2) {
return new BetweenExpression(this, new RangeExpression(
new ConstantExpression(arg1), (Expression)arg2));
}
public Predicate between(String arg1, String arg2) {
return new BetweenExpression(this, new RangeExpression(
new ConstantExpression(arg1), new ConstantExpression(arg2)));
}
public Predicate between(PredicateOperand arg1, Date arg2) {
return new BetweenExpression(this, new RangeExpression(
(Expression)arg1, new ConstantExpression(arg2)));
}
public Predicate between(Date arg1, PredicateOperand arg2) {
return new BetweenExpression(this, new RangeExpression(
new ConstantExpression(arg1), (Expression)arg2));
}
public Predicate between(Date arg1, Date arg2) {
return new BetweenExpression(this, new RangeExpression(
new ConstantExpression(arg1), new ConstantExpression(arg2)));
}
public Predicate between(PredicateOperand arg1, Calendar arg2) {
return new BetweenExpression(this, new RangeExpression(
(Expression)arg1, new ConstantExpression(arg2)));
}
public Predicate between(Calendar arg1, PredicateOperand arg2) {
return new BetweenExpression(this, new RangeExpression(
new ConstantExpression(arg1), (Expression)arg2));
}
public Predicate between(Calendar arg1, Calendar arg2) {
return new BetweenExpression(this, new RangeExpression(
new ConstantExpression(arg1), new ConstantExpression(arg2)));
}
public Predicate equal(PredicateOperand arg) {
return new EqualExpression(this, (Expression)arg);
}
public Predicate equal(Class cls) {
return new EqualExpression(this, new ConstantExpression(cls));
}
public Predicate equal(Number arg) {
return new EqualExpression(this, new ConstantExpression(arg));
}
public Predicate equal(String arg) {
return new EqualExpression(this, new ConstantExpression(arg));
}
public Predicate equal(boolean arg) {
return new EqualExpression(this, new ConstantExpression(arg));
}
public Predicate equal(Date arg) {
return new EqualExpression(this, new ConstantExpression(arg));
}
public Predicate equal(Calendar arg) {
return new EqualExpression(this, new ConstantExpression(arg));
}
public Predicate equal(Enum e) {
return new EqualExpression(this, new ConstantExpression(e));
}
public Predicate greaterEqual(PredicateOperand arg) {
return new GreaterEqualExpression(this, new ConstantExpression(arg));
}
public Predicate greaterEqual(Number arg) {
return new GreaterEqualExpression(this, new ConstantExpression(arg));
}
public Predicate greaterEqual(String arg) {
return new GreaterEqualExpression(this, new ConstantExpression(arg));
}
public Predicate greaterEqual(Date arg) {
return new GreaterEqualExpression(this, new ConstantExpression(arg));
}
public Predicate greaterEqual(Calendar arg) {
return new GreaterEqualExpression(this, new ConstantExpression(arg));
}
public Predicate greaterThan(PredicateOperand arg) {
return new GreaterThanExpression(this, (Expression)arg);
}
public Predicate greaterThan(Number arg) {
return new GreaterThanExpression(this, new ConstantExpression(arg));
}
public Predicate greaterThan(String arg) {
return new GreaterThanExpression(this, new ConstantExpression(arg));
}
public Predicate greaterThan(Date arg) {
return new GreaterThanExpression(this, new ConstantExpression(arg));
}
public Predicate greaterThan(Calendar arg) {
return new GreaterThanExpression(this, new ConstantExpression(arg));
}
public Predicate lessEqual(PredicateOperand arg) {
return new LessEqualExpression(this, new ConstantExpression(arg));
}
public Predicate lessEqual(Number arg) {
return new LessEqualExpression(this, new ConstantExpression(arg));
}
public Predicate lessEqual(String arg) {
return new LessEqualExpression(this, new ConstantExpression(arg));
}
public Predicate lessEqual(Date arg) {
return new LessEqualExpression(this, new ConstantExpression(arg));
}
public Predicate lessEqual(Calendar arg) {
return new LessEqualExpression(this, new ConstantExpression(arg));
}
public Predicate lessThan(PredicateOperand arg) {
return new LessThanExpression(this, (Expression)arg);
}
public Predicate lessThan(Number arg) {
return new LessThanExpression(this, new ConstantExpression(arg));
}
public Predicate lessThan(String arg) {
return new LessThanExpression(this, new ConstantExpression(arg));
}
public Predicate lessThan(Date arg) {
return new LessThanExpression(this, new ConstantExpression(arg));
}
public Predicate lessThan(Calendar arg) {
return new LessThanExpression(this, new ConstantExpression(arg));
}
public Predicate like(PredicateOperand pattern) {
return new LikeExpression(this, (Expression)pattern);
}
public Predicate like(PredicateOperand pattern, PredicateOperand escChar) {
return new LikeExpression(this, (Expression)pattern, escChar);
}
public Predicate like(PredicateOperand pattern, char escapeChar) {
return new LikeExpression(this, (Expression)pattern, escapeChar);
}
public Predicate like(String pattern) {
return new LikeExpression(this, new ConstantExpression(pattern));
}
public Predicate like(String pattern, PredicateOperand escapeChar) {
return new LikeExpression(this, new ConstantExpression(pattern),
escapeChar);
}
public Predicate like(String pattern, char escChar) {
return new LikeExpression(this, new ConstantExpression(pattern),
escChar);
}
public Predicate notEqual(PredicateOperand arg) {
return new NotEqualExpression(this, (Expression)arg);
}
public Predicate notEqual(Class cls) {
return new NotEqualExpression(this, new ConstantExpression(cls));
}
public Predicate notEqual(Number arg) {
return new NotEqualExpression(this, new ConstantExpression(arg));
}
public Predicate notEqual(String arg) {
return new NotEqualExpression(this, new ConstantExpression(arg));
}
public Predicate notEqual(boolean arg) {
return new NotEqualExpression(this, new ConstantExpression(arg));
}
public Predicate notEqual(Date arg) {
return new NotEqualExpression(this, new ConstantExpression(arg));
}
public Predicate notEqual(Calendar arg) {
return new NotEqualExpression(this, new ConstantExpression(arg));
}
public Predicate notEqual(Enum e) {
return new NotEqualExpression(this, new ConstantExpression(e));
}
//
// Visitable/Selectable implementation
//
public String getAliasHint(AliasContext ctx) {
return "o";
}
}
