org.eclipse.persistence.internal.jpa.querydef.RootImpl Maven / Gradle / Ivy
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/*
* Copyright (c) 2011, 2018 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:
// Gordon Yorke - Initial development
//
package org.eclipse.persistence.internal.jpa.querydef;
import javax.persistence.criteria.Path;
import javax.persistence.criteria.Root;
import javax.persistence.metamodel.Bindable;
import javax.persistence.metamodel.EntityType;
import javax.persistence.metamodel.ManagedType;
import javax.persistence.metamodel.Metamodel;
/**
*
* Purpose: Contains the implementation of the Root interface of the JPA
* criteria API.
*
* Description: This class represents root of a path. All paths are
* created from roots and they correspond to ExpressionBuilders.
*
*
* @see javax.persistence.criteria Path
*
* @author gyorke
* @since EclipseLink 1.2
*/
public class RootImpl extends FromImpl implements Root {
public RootImpl(ManagedType managedType, Metamodel metamodel, Class javaClass, org.eclipse.persistence.expressions.Expression expressionNode, Bindable modelArtifact) {
super((Path) null, managedType, metamodel, javaClass, expressionNode, modelArtifact);
}
public RootImpl(ManagedType managedType, Metamodel metamodel, Class javaClass, org.eclipse.persistence.expressions.Expression expressionNode, Bindable modelArtifact, FromImpl correlatedParent) {
super((Path) null, managedType, metamodel, javaClass, expressionNode, modelArtifact, correlatedParent);
}
/**
* Return the metamodel entity corresponding to the root.
*
* @return metamodel entity corresponding to the root
*/
public EntityType getModel() {
return (EntityType) this.modelArtifact;
}
public void findRootAndParameters(CommonAbstractCriteriaImpl query) {
query.integrateRoot(this);
}
public boolean isRoot() {
return true;
}
}