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      1 /*
      2  * Copyright (C) 2006 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 
     17 package android.os;
     18 
     19 import android.annotation.UnsupportedAppUsage;
     20 import android.os.Message;
     21 
     22 /** @hide */
     23 public class AsyncResult
     24 {
     25 
     26     /*************************** Instance Variables **************************/
     27 
     28     // Expect either exception or result to be null
     29     @UnsupportedAppUsage
     30     public Object userObj;
     31     @UnsupportedAppUsage
     32     public Throwable exception;
     33     @UnsupportedAppUsage
     34     public Object result;
     35 
     36     /***************************** Class Methods *****************************/
     37 
     38     /** Saves and sets m.obj */
     39     @UnsupportedAppUsage
     40     public static AsyncResult
     41     forMessage(Message m, Object r, Throwable ex)
     42     {
     43         AsyncResult ret;
     44 
     45         ret = new AsyncResult (m.obj, r, ex);
     46 
     47         m.obj = ret;
     48 
     49         return ret;
     50     }
     51 
     52     /** Saves and sets m.obj */
     53     @UnsupportedAppUsage
     54     public static AsyncResult
     55     forMessage(Message m)
     56     {
     57         AsyncResult ret;
     58 
     59         ret = new AsyncResult (m.obj, null, null);
     60 
     61         m.obj = ret;
     62 
     63         return ret;
     64     }
     65 
     66     /** please note, this sets m.obj to be this */
     67     @UnsupportedAppUsage
     68     public
     69     AsyncResult (Object uo, Object r, Throwable ex)
     70     {
     71         userObj = uo;
     72         result = r;
     73         exception = ex;
     74     }
     75 }
     76