com.google.gwt.rpc.client.ast.IdentityValueCommand Maven / Gradle / Ivy
/*
* Copyright 2009 Google Inc.
*
* 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 com.google.gwt.rpc.client.ast;
/**
* Represents a hierarchy of value types that must maintain distinct object
* identity on the client. This type finalizes equals and
* hashCode to give subtypes identity equality semantics.
*/
public abstract class IdentityValueCommand extends ValueCommand {
@Override
public final boolean equals(Object o) {
return this == o;
}
@Override
public final int hashCode() {
return System.identityHashCode(this);
}
}