1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/*
* Copyright (c) 2011, 2021 Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2021 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:
// Gordon Yorke - Initial development
//
package org.eclipse.persistence.internal.jpa.querydef;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import javax.persistence.criteria.Expression;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.CriteriaBuilder.In;
import javax.persistence.metamodel.Metamodel;
import org.eclipse.persistence.internal.expressions.CollectionExpression;
import org.eclipse.persistence.internal.expressions.CompoundExpression;
import org.eclipse.persistence.internal.expressions.FunctionExpression;
import org.eclipse.persistence.internal.expressions.LogicalExpression;
import org.eclipse.persistence.internal.expressions.RelationExpression;
import org.eclipse.persistence.internal.localization.ExceptionLocalization;
/**
* <p>
* <b>Purpose</b>: Contains the implementation of the In interface of the JPA
* criteria API.
* <p>
* <b>Description</b>: This class represents an In predicate.
* <p>
*
* @see javax.persistence.criteria Join
*
* @author gyorke
* @since EclipseLink 1.2
*/
public class InImpl<T> extends CompoundExpressionImpl implements In<T> {
protected org.eclipse.persistence.expressions.Expression parentNode;
public InImpl(Metamodel metamodel, ExpressionImpl leftExpression, Collection values, List expressions) {
super(metamodel, ((InternalSelection)leftExpression).getCurrentNode().in(values), expressions, "in");
this.leftExpression = leftExpression;
}
public InImpl(Metamodel metamodel, ExpressionImpl leftExpression, ExpressionImpl rightExp, List expressions) {
super(metamodel,
(rightExp.isParameter()?
leftExpression.getCurrentNode().in(rightExp.getCurrentNode()):
leftExpression.getCurrentNode().equal(rightExp.getCurrentNode())),
expressions, "in");
this.leftExpression = leftExpression;
}
protected ExpressionImpl leftExpression;
/**
* Returns the expression to be tested against the
* list of values.
* @return expression
*/
public Expression<T> getExpression(){
return this.leftExpression;
}
public void findRootAndParameters(CommonAbstractCriteriaImpl query){
super.findRootAndParameters(query);
}
public boolean isPredicate(){
return true;
}
/**
* Add to list of values to be tested against.
* @param value value
* @return in predicate
*/
public In<T> value(T value){
((Collection)((CollectionExpression)((RelationExpression)this.currentNode).getSecondChild()).getValue()).add(value);
return this;
}
/**
* Add to list of values to be tested against.
* @param value expression
* @return in predicate
*/
public In<T> value(Expression<? extends T> value) {
if (!(((InternalExpression) value).isLiteral() || ((InternalExpression) value).isParameter())) {
RelationExpression baseIn = (RelationExpression) this.currentNode;
this.currentNode = baseIn.getFirstChild().in(((SubQueryImpl) value).subQuery);
if (this.parentNode != null) {
if (this.parentNode.isCompoundExpression()) {
CompoundExpression logExp = (LogicalExpression) this.parentNode;
if (logExp.getFirstChild() == baseIn) {
logExp.create(this.currentNode, logExp.getSecondChild(), logExp.getOperator());
} else {
logExp.create(logExp.getFirstChild(), this.currentNode, logExp.getOperator());
}
} else {
FunctionExpression funcExp = (FunctionExpression) this.parentNode;
funcExp.getChildren().set(funcExp.getChildren().indexOf(baseIn), this.currentNode);
}
}
} else {
if (this.currentNode.isRelationExpression()) {
RelationExpression baseIn = (RelationExpression) this.currentNode;
org.eclipse.persistence.expressions.Expression resultExp = ((InternalSelection)value).getCurrentNode();
resultExp = org.eclipse.persistence.expressions.Expression.from(resultExp, baseIn.getFirstChild());
((Collection) ((CollectionExpression) baseIn.getSecondChild()).getValue()).add(resultExp);
// Add to the expression list for #findRootAndParameters()
this.expressions.add(value);
} else {
throw new IllegalStateException(ExceptionLocalization.buildMessage("CANNOT_ADD_CONSTANTS_TO_SUBQUERY_IN"));
}
}
return this;
}
/**
* This method is used to store what will be the parent EclipseLink expression in the case the tree needs to be altered.
* Currently used for In.
*/
public void setParentNode(org.eclipse.persistence.expressions.Expression parentNode){
this.parentNode = parentNode;
}
public Predicate not(){
parentNode = this.getCurrentNode().not();
ArrayList list = new ArrayList();
list.add(this);
CompoundExpressionImpl expr = new CompoundExpressionImpl(this.metamodel, parentNode, list, "not");
expr.setIsNegated(true);
return expr;
}
}
|
