/*
* #!
* 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.topicmaps.query.parser;
/**
* INTERNAL: Used to represent variable references in tolog queries.
*/
public class Variable {
protected String name; // does NOT include the initial '$'
public Variable(String name) {
this.name = name.substring(1);
}
public String getName() {
return name;
}
/// Object
public String toString() {
return "$" + name;
}
public boolean equals(Object obj) {
return obj instanceof Variable &&
name.equals(((Variable) obj).name);
}
public int hashCode() {
return name.hashCode();
}
}