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• HibernateToken.java

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org.hibernate.hql.ast.common.HibernateToken Maven / Gradle / Ivy

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * JBoss, Home of Professional Open Source
 * Copyright 2009 Red Hat Inc. and/or its affiliates and other contributors
 * as indicated by the @authors tag. All rights reserved.
 * See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * 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, v. 2.1.
 * This program is distributed in the hope that it will be useful, but WITHOUT A
 * 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,
 * v.2.1 along with this distribution; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301, USA.
 */
package org.hibernate.hql.ast.common;

import org.antlr.runtime.CharStream;
import org.antlr.runtime.CommonToken;
import org.antlr.runtime.Token;

/**
 * Models the token-type/text portion of an Antlr tree for a specific node in said tree.
 *
 * @author Steve Ebersole
 * @author Alexandre Porcelli
 */
public class HibernateToken extends CommonToken {
	public HibernateToken(int type) {
		super( type );
	}

	public HibernateToken(CharStream input, int type, int channel, int start, int stop) {
		super( input, type, channel, start, stop );
	}

	public HibernateToken(int type, String text) {
		super( type, text );
	}

	/**
	 * Constructor that preserves the char offset
	 *
	 * @param oldToken A token to use to template the creation of this new one.
	 */
	public HibernateToken(Token oldToken) {
		super( oldToken );
		if ( null != oldToken && CommonToken.class.isInstance( oldToken ) ) {
			setStartIndex( ( (CommonToken)oldToken ).getStartIndex() );
			setStopIndex( ( (CommonToken)oldToken ).getStopIndex() );
		}
	}

	/**
	 * Constructor form used to track origination position information via the passed
	 * 'oldToken' param, but to utilize a new token type and text.
	 *
	 * @param oldToken The original token type (used for position tracking info).
	 * @param type The type of the new (this) token
	 * @param text The test of the new (this) token.
	 */
	public HibernateToken(Token oldToken, int type, String text) {
		this( oldToken );
		setType( type );
		setText( text );
	}
}