alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Hibernate example source code file (Tuple.java)

This example Hibernate source code file (Tuple.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

illegalargumentexception, iterable, linkedhashset, loggable, override, override, string, string, tablespecification, tuple, tuple, util, value, value, valuecontainer

The Hibernate Tuple.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2010 by Red Hat Inc and/or its affiliates or by
 * third-party contributors as indicated by either @author tags or express
 * copyright attribution statements applied by the authors.  All
 * third-party contributions are distributed under license by Red Hat Inc.
 *
 * 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.metamodel.relational;

import java.util.LinkedHashSet;

/**
 * Models a compound value (a tuple or row-value-constructor is SQL terms).  It is both a {@link Value} and
 * a {@link ValueContainer} simultaneously.
 * <p/>
 * IMPL NOTE : in terms of the tables themselves, SQL has no notion of a tuple/compound-value.  We simply model
 * it this way because:
 * <ul>
 * <li>it is a cleaner mapping to the logical model
 * <li>it allows more meaningful traversals from simple values back up to table through any intermediate tuples
 * because it gives us a better understanding of the model.</li>
 * <li>it better conveys intent
 * <li>it adds richness to the model
 * </ul>
 *
 * @author Steve Ebersole
 */
public class Tuple implements Value, ValueContainer, Loggable {
	private final TableSpecification table;
	private final String name;
	private final LinkedHashSet<SimpleValue> values = new LinkedHashSet();

	public Tuple(TableSpecification table, String name) {
		this.table = table;
		this.name = name;
	}

	@Override
	public TableSpecification getTable() {
		return table;
	}

	public int valuesSpan() {
		return values.size();
	}

	@Override
	public Iterable<SimpleValue> values() {
		return values;
	}

	public void addValue(SimpleValue value) {
		if ( ! value.getTable().equals( getTable() ) ) {
			throw new IllegalArgumentException( "Tuple can only group values from same table" );
		}
		values.add( value );
	}

	@Override
	public String getLoggableValueQualifier() {
		return getTable().getLoggableValueQualifier() + '.' + name + "{tuple}";
	}

	@Override
	public String toLoggableString() {
		return getLoggableValueQualifier();
	}

	@Override
	public void validateJdbcTypes(JdbcCodes typeCodes) {
		for ( Value value : values() ) {
			value.validateJdbcTypes( typeCodes );
		}
	}
}

Other Hibernate examples (source code examples)

Here is a short list of links related to this Hibernate Tuple.java source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.