| /* |
| * Copyright (c) 2011, 2021 Oracle and/or its affiliates. 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 |
| // |
| package org.eclipse.persistence.jpa.jpql.tools.model.query; |
| |
| import org.eclipse.persistence.jpa.jpql.tools.spi.IManagedType; |
| import org.eclipse.persistence.jpa.jpql.utility.iterable.ListIterable; |
| |
| /** |
| * @version 2.5 |
| * @since 2.4 |
| * @author Pascal Filion |
| */ |
| public class DerivedPathIdentificationVariableDeclarationStateObject extends AbstractIdentificationVariableDeclarationStateObject { |
| |
| /** |
| * Creates a new <code>IdentificationVariableDeclarationStateObject</code>. |
| * |
| * @param parent The parent of this state object, which cannot be <code>null</code> |
| * @exception NullPointerException The given parent cannot be <code>null</code> |
| */ |
| public DerivedPathIdentificationVariableDeclarationStateObject(SimpleFromClauseStateObject parent) { |
| super(parent); |
| } |
| |
| /** |
| * Creates a new <code>IdentificationVariableDeclarationStateObject</code>. |
| * |
| * @param parent The parent of this state object, which cannot be <code>null</code> |
| * @param path Either the derived singled-valued object field or the collection-valued path expression |
| * @param identificationVariable The identification variable defining the given path |
| * @exception NullPointerException The given parent cannot be <code>null</code> |
| */ |
| public DerivedPathIdentificationVariableDeclarationStateObject(SimpleFromClauseStateObject parent, |
| String path, |
| String identificationVariable) { |
| |
| super(parent, path, identificationVariable); |
| } |
| |
| @Override |
| public void accept(StateObjectVisitor visitor) { |
| visitor.visit(this); |
| } |
| |
| @Override |
| protected AbstractRangeVariableDeclarationStateObject buildRangeVariableDeclarationStateObject() { |
| return new DerivedPathVariableDeclarationStateObject(this); |
| } |
| |
| @Override |
| public IManagedType getManagedType(StateObject stateObject) { |
| |
| if (getIdentificationVariableStateObject().isEquivalent(stateObject)) { |
| return getRootStateObject().getManagedType(); |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public SimpleFromClauseStateObject getParent() { |
| return (SimpleFromClauseStateObject) super.getParent(); |
| } |
| |
| /** |
| * Returns the string representation of the path expression, which is either a singled-valued |
| * object field or a collection-valued path expression. |
| * |
| * @return The path expression, which is never <code>null</code> |
| */ |
| public String getPath() { |
| return getRangeVariableDeclaration().getPath(); |
| } |
| |
| @Override |
| public DerivedPathVariableDeclarationStateObject getRangeVariableDeclaration() { |
| return (DerivedPathVariableDeclarationStateObject) super.getRangeVariableDeclaration(); |
| } |
| |
| @Override |
| public CollectionValuedPathExpressionStateObject getRootStateObject() { |
| return getRangeVariableDeclaration().getRootStateObject(); |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") |
| public ListIterable<JoinStateObject> items() { |
| return (ListIterable<JoinStateObject>) super.items(); |
| } |
| } |