/*
* 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.hql.internal.ast.HqlSqlWalker;
/**
* Common interface modeling the different HQL statements (i.e., INSERT, UPDATE, DELETE, SELECT).
*
* @author Steve Ebersole
*/
public interface Statement {
/**
* Retreive the "phase 2" walker which generated this statement tree.
*
* @return The HqlSqlWalker instance which generated this statement tree.
*/
public HqlSqlWalker getWalker();
/**
* Return the main token type representing the type of this statement.
*
* @return The corresponding token type.
*/
public int getStatementType();
/**
* Does this statement require the StatementExecutor?
* </p>
* Essentially, at the JDBC level, does this require an executeUpdate()?
*
* @return True if this statement should be handed off to the
* StatementExecutor to be executed; false otherwise.
*/
public boolean needsExecutor();
}