Hibernate example source code file (InsertSelect.java)

This example Hibernate source code file (InsertSelect.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

arraylist, dialect, hibernateexception, hibernateexception, insertselect, insertselect, iterator, list, select, string, string, stringbuffer, stringbuffer, util

The Hibernate InsertSelect.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.sql;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.hibernate.HibernateException;
import org.hibernate.dialect.Dialect;

/**
 * Implementation of InsertSelect.
 *
 * @author Steve Ebersole
 */
public class InsertSelect {

	private Dialect dialect;
	private String tableName;
	private String comment;
	private List columnNames = new ArrayList();
	private Select select;

	public InsertSelect(Dialect dialect) {
		this.dialect = dialect;
	}

	public InsertSelect setTableName(String tableName) {
		this.tableName = tableName;
		return this;
	}

	public InsertSelect setComment(String comment) {
		this.comment = comment;
		return this;
	}

	public InsertSelect addColumn(String columnName) {
		columnNames.add( columnName );
		return this;
	}

	public InsertSelect addColumns(String[] columnNames) {
		for ( int i = 0; i < columnNames.length; i++ ) {
			this.columnNames.add( columnNames[i] );
		}
		return this;
	}

	public InsertSelect setSelect(Select select) {
		this.select = select;
		return this;
	}

	public String toStatementString() {
		if ( tableName == null ) throw new HibernateException( "no table name defined for insert-select" );
		if ( select == null ) throw new HibernateException( "no select defined for insert-select" );

		StringBuffer buf = new StringBuffer( (columnNames.size() * 15) + tableName.length() + 10 );
		if ( comment!=null ) {
			buf.append( "/* " ).append( comment ).append( " */ " );
		}
		buf.append( "insert into " ).append( tableName );
		if ( !columnNames.isEmpty() ) {
			buf.append( " (" );
			Iterator itr = columnNames.iterator();
			while ( itr.hasNext() ) {
				buf.append( itr.next() );
				if ( itr.hasNext() ) {
					buf.append( ", " );
				}
			}
			buf.append( ")" );
		}
		buf.append( ' ' ).append( select.toStatementString() );
		return buf.toString();
	}
}