abstractstatement.java

来自「hibernate-distribution-3.3.1.GA-dist.zip」· Java 代码 · 共 56 行

/*
 * 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.ast.tree;

import java.util.Iterator;

/**
 * Convenience implementation of Statement to centralize common functionality.
 *
 * @author Steve Ebersole
 */
public abstract class AbstractStatement extends HqlSqlWalkerNode implements DisplayableNode, Statement {

	/**
	 * Returns additional display text for the AST node.
	 *
	 * @return String - The additional display text.
	 */
	public String getDisplayText() {
		StringBuffer buf = new StringBuffer();
		if ( getWalker().getQuerySpaces().size() > 0 ) {
			buf.append( " querySpaces (" );
			for ( Iterator iterator = getWalker().getQuerySpaces().iterator(); iterator.hasNext(); ) {
				buf.append( iterator.next() );
				if ( iterator.hasNext() ) {
					buf.append( "," );
				}
			}
			buf.append( ")" );
		}
		return buf.toString();
	}
}