/*
* #!
* 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: variable. Class used to reference variables
* by name. Syntax: 'VARIABLE'.
*/
public class JDOVariable implements JDOValueIF {
protected String name;
public JDOVariable(String name) {
if (name == null) throw new NullPointerException("Variable name cannot be null.");
this.name = name;
}
public int getType() {
return VARIABLE;
}
public String getName() {
return name;
}
public int hashCode() {
return name.hashCode();
}
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj instanceof JDOVariable){
JDOVariable other = (JDOVariable)obj;
return name.equals(other.name);
}
return false;
}
public String toString() {
return name;
}
public void visit(JDOVisitorIF visitor) {
}
}