selectexpressionimpl.java

来自「hibernate-distribution-3.3.1.GA-dist.zip」· Java 代码 · 共 51 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 antlr.SemanticException;
import antlr.collections.AST;

/**
 * A select expression that was generated by a FROM element.
 *
 * @author josh
 */
public class SelectExpressionImpl extends FromReferenceNode implements SelectExpression {

	public void resolveIndex(AST parent) throws SemanticException {
		throw new UnsupportedOperationException();
	}

	public void setScalarColumnText(int i) throws SemanticException {
		String text = getFromElement().renderScalarIdentifierSelect( i );
		setText( text );
	}

	public void resolve(boolean generateJoin, boolean implicitJoin, String classAlias, AST parent) throws SemanticException {
		// Generated select expressions are already resolved, nothing to do.
		return;
	}
}