/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
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
/** * 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" ); } StringBuilder buf = new StringBuilder( (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(); } }