SqlJoinLeftOuter.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.jena.sdb.core.sqlnode;

import org.apache.jena.sdb.core.JoinType ;


public class SqlJoinLeftOuter extends SqlJoin
{
    public SqlJoinLeftOuter(SqlNode left, SqlNode right)
    { super(JoinType.LEFT, left, right) ; }
     
    @Override 
    public boolean   isLeftJoin()        { return true ; }

    @Override 
    public SqlJoinLeftOuter   asLeftJoin()         { return this ; }
    
    @Override
    public void visit(SqlNodeVisitor visitor) { visitor.visit(this) ; }
 
    @Override
    public SqlNode apply(SqlTransform transform, SqlNode left, SqlNode right)
    { return transform.transform(this, left, right) ; }
    
    @Override
    public SqlNode copy(SqlNode left, SqlNode right)
    { 
        SqlJoin j = new SqlJoinLeftOuter(left, right) ;
        j.addConditions(this.getConditions()) ;
        return j ;
    }
}