| /* |
| * Copyright 2011 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.ipc.invalidation.external.client.types; |
| |
| import java.util.Arrays; |
| |
| /** |
| * Represents an opaque handle that can be used to acknowledge an invalidation event by calling |
| * {@code InvalidationClient.acknowledge(AckHandle)} to indicate that the client has successfully |
| * handled the event. |
| * |
| */ |
| public final class AckHandle { |
| |
| /** The serialized representation of the handle */ |
| private final byte[] handleData; |
| |
| /** Creates a new ack handle from the serialized {@code handleData} representation. */ |
| public static AckHandle newInstance(byte[] handleData) { |
| return new AckHandle(handleData); |
| } |
| |
| private AckHandle(byte[] handleData) { |
| this.handleData = handleData; |
| } |
| |
| public byte[] getHandleData() { |
| return handleData; |
| } |
| |
| @Override |
| public boolean equals(Object object) { |
| if (object == this) { |
| return true; |
| } |
| |
| if (!(object instanceof AckHandle)) { |
| return false; |
| } |
| |
| final AckHandle other = (AckHandle) object; |
| return Arrays.equals(handleData, other.handleData); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Arrays.hashCode(handleData); |
| } |
| |
| @Override |
| public String toString() { |
| return "AckHandle: " + BytesFormatter.toString(handleData); |
| } |
| } |