Hibernate example source code file (NativeSQLQueryRootReturn.java)

This example Hibernate source code file (NativeSQLQueryRootReturn.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

lockmode, lockmode, map, map, nativesqlquerynonscalarreturn, nativesqlqueryrootreturn, nativesqlqueryrootreturn, string, string, util

The Hibernate NativeSQLQueryRootReturn.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Middleware LLC.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 *
 */
package org.hibernate.engine.query.spi.sql;
import java.util.Map;
import org.hibernate.LockMode;

/**
 * Represents a return defined as part of a native sql query which
 * names a "root" entity.  A root entity means it is explicitly a
 * "column" in the result, as opposed to a fetched relationship or role.
 *
 * @author Steve Ebersole
 */
public class NativeSQLQueryRootReturn extends NativeSQLQueryNonScalarReturn {
	private final String returnEntityName;
	private final int hashCode;

	/**
	 * Construct a return representing an entity returned at the root
	 * of the result.
	 *
	 * @param alias The result alias
	 * @param entityName The entity name.
	 * @param lockMode The lock mode to apply
	 */
	public NativeSQLQueryRootReturn(String alias, String entityName, LockMode lockMode) {
		this(alias, entityName, null, lockMode);
	}

	/**
	 *
	 * @param alias The result alias
	 * @param entityName The entity name.
	 * @param propertyResults Any user-supplied column->property mappings
	 * @param lockMode The lock mode to apply
	 */
	public NativeSQLQueryRootReturn(String alias, String entityName, Map<String,String[]> propertyResults, LockMode lockMode) {
		super( alias, propertyResults, lockMode );
		this.returnEntityName = entityName;
		this.hashCode = determineHashCode();
	}

	/**
	 * The name of the entity to be returned.
	 *
	 * @return The entity name
	 */
	public String getReturnEntityName() {
		return returnEntityName;
	}

	public boolean equals(Object o) {
		if ( this == o ) {
			return true;
		}
		if ( o == null || getClass() != o.getClass() ) {
			return false;
		}
		if ( ! super.equals( o ) ) {
			return false;
		}

		NativeSQLQueryRootReturn that = ( NativeSQLQueryRootReturn ) o;

		if ( returnEntityName != null ? !returnEntityName.equals( that.returnEntityName ) : that.returnEntityName != null ) {
			return false;
		}

		return true;
	}

	public int hashCode() {
		return hashCode;
	}

	private int determineHashCode() {
		int result = super.hashCode();
		result = 31 * result + ( returnEntityName != null ? returnEntityName.hashCode() : 0 );
		return result;
	}
}