| /* |
| * 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 jakarta.persistence.criteria.Expression; |
| import jakarta.persistence.criteria.Predicate; |
| import jakarta.persistence.criteria.CriteriaBuilder.In; |
| import jakarta.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. |
| * |
| * @see jakarta.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 |
| */ |
| @Override |
| public Expression<T> getExpression(){ |
| return this.leftExpression; |
| } |
| |
| @Override |
| public void findRootAndParameters(CommonAbstractCriteriaImpl query){ |
| super.findRootAndParameters(query); |
| } |
| |
| @Override |
| public boolean isPredicate(){ |
| return true; |
| } |
| |
| /** |
| * Add to list of values to be tested against. |
| * @param value value |
| * @return in predicate |
| */ |
| @Override |
| 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 |
| */ |
| @Override |
| 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. |
| */ |
| @Override |
| public void setParentNode(org.eclipse.persistence.expressions.Expression parentNode){ |
| this.parentNode = parentNode; |
| } |
| |
| @Override |
| public Predicate not(){ |
| parentNode = this.getCurrentNode().not(); |
| List<Expression<?>> list = new ArrayList<>(); |
| list.add(this); |
| CompoundExpressionImpl expr = new CompoundExpressionImpl(this.metamodel, parentNode, list, "not"); |
| expr.setIsNegated(true); |
| return expr; |
| } |
| } |