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Hibernate example source code file (Node.java)

This example Hibernate source code file (Node.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

node, node, override, override, string, string, this, this

The Hibernate Node.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.hql.internal.ast.tree;

import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.internal.util.StringHelper;
import antlr.Token;
import antlr.collections.AST;

/**
 * Base node class for use by Hibernate within its AST trees.
 *
 * @author Joshua Davis
 * @author Steve Ebersole
 */
public class Node extends antlr.CommonAST {
	private String filename;
	private int line;
	private int column;
	private int textLength;

	public Node() {
		super();
	}

	public Node(Token tok) {
		super(tok);  // This will call initialize(tok)!
	}

	/**
	 * Retrieve the text to be used for rendering this particular node.
	 *
	 * @param sessionFactory The session factory
	 * @return The text to use for rendering
	 */
	public String getRenderText(SessionFactoryImplementor sessionFactory) {
		// The basic implementation is to simply use the node's text
		return getText();
	}

	@Override
    public void initialize(Token tok) {
		super.initialize(tok);
		filename = tok.getFilename();
		line = tok.getLine();
		column = tok.getColumn();
		String text = tok.getText();
		textLength = StringHelper.isEmpty(text) ? 0 : text.length();
	}

	@Override
    public void initialize(AST t) {
		super.initialize( t );
		if ( t instanceof Node ) {
			Node n = (Node)t;
			filename = n.filename;
			line = n.line;
			column = n.column;
			textLength = n.textLength;
		}
	}

	public String getFilename() {
		return filename;
	}

	@Override
    public int getLine() {
		return line;
	}

	@Override
    public int getColumn() {
		return column;
	}

	public int getTextLength() {
		return textLength;
	}
}

Other Hibernate examples (source code examples)

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