JoinType.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;


public enum JoinType
{
    INNER
    { 
        @Override public String sqlOperator() { return "INNER JOIN" ; }
        @Override public String printName()   { return "Join/inner" ; }
    } ,
    
    LEFT
    { 
        @Override public String sqlOperator() { return "LEFT OUTER JOIN" ; }
        @Override public String printName()   { return "Join/left outer" ; }
    }
    
    ;
    abstract public String sqlOperator() ;
    abstract public String printName() ;
    
    @Override public String toString() { return printName() ; }
}