/*
* 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.openjpa.jdbc.meta;
import org.apache.openjpa.jdbc.identifier.DBIdentifier;
import org.apache.openjpa.jdbc.sql.Joins;
import org.apache.openjpa.jdbc.sql.Select;
import org.apache.openjpa.meta.Order;
/**
* Order in the datastore using JDBC.
*
* @author Abe White
*/
interface JDBCOrder
extends Order {
/**
* Whether the value is a member of the field's related type, rather than
* columns of the field itself.
*/
public boolean isInRelation();
/**
* Order by this value.
*
* @param elem if this value has independent mappings, the mapping
* we're selecting
*/
public void order(Select sel, ClassMapping elem, Joins joins);
public DBIdentifier getIdentifier();
}