org.eclipse.persistence.internal.jpa.querydef.RootImpl Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of eclipselink Show documentation

EclipseLink build based upon Git transaction f2b9fc5

There is a newer version: 5.0.0-B03

/*
 * 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:
//     Gordon Yorke - Initial development
//
package org.eclipse.persistence.internal.jpa.querydef;

import jakarta.persistence.criteria.Path;
import jakarta.persistence.criteria.Root;
import jakarta.persistence.metamodel.Bindable;
import jakarta.persistence.metamodel.EntityType;
import jakarta.persistence.metamodel.ManagedType;
import jakarta.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 jakarta.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(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(null, managedType, metamodel, javaClass, expressionNode, modelArtifact, correlatedParent);
    }

    /**
     * Return the metamodel entity corresponding to the root.
     *
     * @return metamodel entity corresponding to the root
     */
    @Override
    public EntityType getModel() {
        return (EntityType) this.modelArtifact;
    }

    @Override
    public void findRootAndParameters(CommonAbstractCriteriaImpl query) {
        query.integrateRoot(this);
    }

    @Override
    public boolean isRoot() {
        return true;
    }

}