| /* |
| * 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 com.google.ipc.invalidation.util.Preconditions; |
| |
| import java.util.Arrays; |
| |
| /** |
| * A class to represent a unique object id that an application can register or |
| * unregister for. |
| * |
| */ |
| public final class ObjectId { |
| |
| /** The invalidation source type. */ |
| private final int source; |
| |
| /** The name/unique id for the object. */ |
| private final byte[] name; |
| |
| /** |
| * Creates an object id for the given {@code source} and id {@code name} (does not make a copy of |
| * the array). |
| */ |
| public static ObjectId newInstance(int source, byte[] name) { |
| return new ObjectId(source, name); |
| } |
| |
| /** Creates an object id for the given {@code source} and id {@code name}. */ |
| private ObjectId(int source, byte[] name) { |
| Preconditions.checkState(source >= 0, "source"); |
| this.source = source; |
| this.name = Preconditions.checkNotNull(name, "name"); |
| } |
| |
| public int getSource() { |
| return source; |
| } |
| |
| public byte[] getName() { |
| return name; |
| } |
| |
| @Override |
| public boolean equals(Object object) { |
| if (object == this) { |
| return true; |
| } |
| |
| if (!(object instanceof ObjectId)) { |
| return false; |
| } |
| |
| final ObjectId other = (ObjectId) object; |
| if ((source != other.source) || !Arrays.equals(name, other.name)) { |
| return false; |
| } |
| return true; |
| } |
| |
| @Override |
| public int hashCode() { |
| return source ^ Arrays.hashCode(name); |
| } |
| |
| @Override |
| public String toString() { |
| return "Oid: <" + source + ", " + BytesFormatter.toString(name) + ">"; |
| } |
| } |