/*
* #!
* Ontopia Engine
* #-
* Copyright (C) 2001 - 2013 The Ontopia Project
* #-
* Licensed 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 net.ontopia.persistence.query.jdo;
/**
* INTERNAL: JDOQL value: null. Class used to represent null. Syntax:
* 'null'.
*/
public class JDONull implements JDOValueIF {
public JDONull() {
}
public int getType() {
return NULL;
}
public int hashCode() {
return 321; // Just some random number
}
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj instanceof JDONull)
return true;
else
return false;
}
public String toString() {
return "null";
}
public void visit(JDOVisitorIF visitor) {
}
}