ForwardingObservable.java revision b8397360d318edf3093b20b2b102207d76730e1b 
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.camera.async;
18
19import com.android.camera.util.Callback;
20
21import java.util.concurrent.Executor;
22
23public abstract class ForwardingObservable<T> implements Observable<T> {
24    private final Observable<T> mDelegate;
25
26    public ForwardingObservable(Observable<T> delegate) {
27        mDelegate = delegate;
28    }
29
30    @Override
31    public SafeCloseable addCallback(Callback<T> callback, Executor executor) {
32        return mDelegate.addCallback(callback, executor);
33    }
34
35    @Override
36    public T get() {
37        return mDelegate.get();
38    }
39}
40