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      1 /*
      2  * Copyright (C) 2011 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 package android.util;
     17 
     18 /**
     19  * An implementation of {@link android.util.Property} to be used specifically with fields of type
     20  * <code>int</code>. This type-specific subclass enables performance benefit by allowing
     21  * calls to a {@link #setValue(Object, int) setValue()} function that takes the primitive
     22  * <code>int</code> type and avoids autoboxing and other overhead associated with the
     23  * <code>Integer</code> class.
     24  *
     25  * @param <T> The class on which the Property is declared.
     26  */
     27 public abstract class IntProperty<T> extends Property<T, Integer> {
     28 
     29     public IntProperty(String name) {
     30         super(Integer.class, name);
     31     }
     32 
     33     /**
     34      * A type-specific variant of {@link #set(Object, Integer)} that is faster when dealing
     35      * with fields of type <code>int</code>.
     36      */
     37     public abstract void setValue(T object, int value);
     38 
     39     @Override
     40     final public void set(T object, Integer value) {
     41         setValue(object, value.intValue());
     42     }
     43 
     44 }