/**
* Copyright 2010 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 org.waveprotocol.wave.model.operation.testing.reference;
/**
* An pair of strings representing an update of a string value.
*/
final class ValueUpdate {
final String oldValue;
final String newValue;
ValueUpdate(String oldValue, String newValue) {
this.oldValue = oldValue;
this.newValue = newValue;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((newValue == null) ? 0 : newValue.hashCode());
result = prime * result + ((oldValue == null) ? 0 : oldValue.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (!(obj instanceof ValueUpdate)) return false;
ValueUpdate other = (ValueUpdate) obj;
if (newValue == null) {
if (other.newValue != null) return false;
} else if (!newValue.equals(other.newValue)) return false;
if (oldValue == null) {
if (other.oldValue != null) return false;
} else if (!oldValue.equals(other.oldValue)) return false;
return true;
}
}