Hibernate example source code file (NativeSQLQueryNonScalarReturn.java)

This example Hibernate source code file (NativeSQLQueryNonScalarReturn.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

hashmap, hibernateexception, io, lockmode, lockmode, map, map, nativesqlquerynonscalarreturn, nativesqlquerynonscalarreturn, nativesqlqueryreturn, serializable, string, string, util

The Hibernate NativeSQLQueryNonScalarReturn.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.io.Serializable;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.hibernate.HibernateException;
import org.hibernate.LockMode;

/**
 * Represents the base information for a non-scalar return defined as part of
 * a native sql query.
 *
 * @author Steve Ebersole
 */
public abstract class NativeSQLQueryNonScalarReturn implements NativeSQLQueryReturn, Serializable {
	private final String alias;
	private final LockMode lockMode;
	private final Map<String,String[]> propertyResults = new HashMap();
	private final int hashCode;

	/**
	 * Constructs some form of non-scalar return descriptor
	 *
	 * @param alias The result alias
	 * @param propertyResults Any user-supplied column->property mappings
	 * @param lockMode The lock mode to apply to the return.
	 */
	protected NativeSQLQueryNonScalarReturn(String alias, Map<String,String[]> propertyResults, LockMode lockMode) {
		this.alias = alias;
		if ( alias == null ) {
			throw new HibernateException("alias must be specified");
		}
		this.lockMode = lockMode;
		if ( propertyResults != null ) {
			this.propertyResults.putAll( propertyResults );
		}
		this.hashCode = determineHashCode();
	}

	/**
	 * Retrieve the defined result alias
	 *
	 * @return The result alias.
	 */
	public String getAlias() {
		return alias;
	}

	/**
	 * Retrieve the lock-mode to apply to this return
	 *
	 * @return The lock mode
	 */
	public LockMode getLockMode() {
		return lockMode;
	}

	/**
	 * Retrieve the user-supplied column->property mappings.
	 *
	 * @return The property mappings.
	 */
	public Map<String,String[]> getPropertyResultsMap() {
		return Collections.unmodifiableMap( propertyResults );
	}

	public int hashCode() {
		return hashCode;
	}

	private int determineHashCode() {
		int result = alias != null ? alias.hashCode() : 0;
		result = 31 * result + ( getClass().getName().hashCode() );
		result = 31 * result + ( lockMode != null ? lockMode.hashCode() : 0 );
		result = 31 * result + ( propertyResults != null ? propertyResults.hashCode() : 0 );
		return result;
	}

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

		NativeSQLQueryNonScalarReturn that = ( NativeSQLQueryNonScalarReturn ) o;

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

		return true;
	}
}