/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.beam.sdk.util;
/**
* Thrown when a value appears to have been mutated, but that mutation is forbidden.
*/
public class IllegalMutationException extends RuntimeException {
private Object savedValue;
private Object newValue;
public IllegalMutationException(String message, Object savedValue, Object newValue) {
super(message);
this.savedValue = savedValue;
this.newValue = newValue;
}
public IllegalMutationException(
String message, Object savedValue, Object newValue, Throwable cause) {
super(message, cause);
this.savedValue = savedValue;
this.newValue = newValue;
}
/**
* The original value, before the illegal mutation.
*/
public Object getSavedValue() {
return savedValue;
}
/**
* The value after the illegal mutation.
*/
public Object getNewValue() {
return newValue;
}
}