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com.mysema.query.jpa.JPQLTemplates Maven / Gradle / Ivy
/*
* Copyright (c) 2010 Mysema Ltd.
* All rights reserved.
*
*/
package com.mysema.query.jpa;
import javax.annotation.Nullable;
import com.mysema.query.types.Constant;
import com.mysema.query.types.Operator;
import com.mysema.query.types.OperatorImpl;
import com.mysema.query.types.Ops;
import com.mysema.query.types.PathType;
import com.mysema.query.types.Templates;
/**
* JPQLTemplates extends Templates to provide operator patterns for JPQL
* serialization
*
* @author tiwe
* @see HQLTemplates
* @see EclipseLinkTemplates
*/
public class JPQLTemplates extends Templates {
public static final Operator CAST = new OperatorImpl("CAST",Object.class, Object.class);
public static final Operator MEMBER_OF = new OperatorImpl("MEMBER_OF",Object.class, Object.class);
public static final JPQLTemplates DEFAULT = new JPQLTemplates();
protected JPQLTemplates() {
//CHECKSTYLE:OFF
// boolean
add(Ops.AND, "{0} and {1}", 36);
add(Ops.NOT, "not {0}", 3);
add(Ops.OR, "{0} or {1}", 38);
add(Ops.XNOR, "{0} xnor {1}", 39);
add(Ops.XOR, "{0} xor {1}", 39);
// comparison
add(Ops.BETWEEN, "{0} between {1} and {2}", 30);
// numeric
add(Ops.MathOps.SQRT, "sqrt({0})");
add(Ops.MOD, "mod({0},{1})", 0);
// various
add(Ops.NE_PRIMITIVE, "{0} <> {1}", 25);
add(Ops.NE_OBJECT, "{0} <> {1}", 25);
add(Ops.IS_NULL, "{0} is null", 26);
add(Ops.IS_NOT_NULL, "{0} is not null", 26);
// collection
add(MEMBER_OF, "{0} member of {1}");
add(Ops.IN, "{0} in {1}");
add(Ops.COL_IS_EMPTY, "{0} is empty");
add(Ops.COL_SIZE, "size({0})");
add(Ops.ARRAY_SIZE, "size({0})");
// string
add(Ops.LIKE, "{0} like {1}",1);
add(Ops.CONCAT, "concat({0},{1})",0);
add(Ops.MATCHES, "{0} like {1}", 27); // TODO : support real regexes
add(Ops.LOWER, "lower({0})");
add(Ops.SUBSTR_1ARG, "substring({0},{1}+1)");
add(Ops.SUBSTR_2ARGS, "substring({0},{1}+1,{2})");
add(Ops.TRIM, "trim({0})");
add(Ops.UPPER, "upper({0})");
add(Ops.EQ_IGNORE_CASE, "{0l} = {1l}");
add(Ops.CHAR_AT, "cast(substring({0},{1}+1,1) as char)");
add(Ops.STRING_IS_EMPTY, "length({0}) = 0");
add(Ops.STRING_CONTAINS, "{0} like {%1%}");
add(Ops.STRING_CONTAINS_IC, "{0l} like {%%1%%}");
add(Ops.ENDS_WITH, "{0} like {%1}");
add(Ops.ENDS_WITH_IC, "{0l} like {%%1}");
add(Ops.STARTS_WITH, "{0} like {1%}");
add(Ops.STARTS_WITH_IC, "{0l} like {1%%}");
add(Ops.INDEX_OF, "locate({1},{0}) - 1");
add(Ops.INDEX_OF_2ARGS, "locate({1},{0},{2}+1) - 1");
// date time
add(Ops.DateTimeOps.SYSDATE, "sysdate");
add(Ops.DateTimeOps.CURRENT_DATE, "current_date()");
add(Ops.DateTimeOps.CURRENT_TIME, "current_time()");
add(Ops.DateTimeOps.CURRENT_TIMESTAMP, "current_timestamp()");
// path types
add(PathType.PROPERTY, "{0}.{1s}");
add(PathType.VARIABLE, "{0s}");
// case for eq
add(Ops.CASE_EQ, "case {1} end");
add(Ops.CASE_EQ_WHEN, "when {0} = {1} then {2} {3}");
add(Ops.CASE_EQ_ELSE, "else {0}");
add(Ops.INSTANCE_OF, "type({0}) = {1}");
//CHECKSTYLE:ON
}
public boolean wrapElements(Operator operator){
return false;
}
public boolean wrapConstant(Constant expr) {
return false;
}
public boolean isTypeAsString() {
// TODO : get rid of this when Hibernate supports type(alias)
return false;
}
@Nullable
public String getExistsProjection(){
return null;
}
}
