1 /*
2  * Copyright (C) 2017 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 java.lang.invoke;
18 
19 import java.nio.ByteBuffer;
20 import java.nio.ByteOrder;
21 
22 /**
23  * A VarHandle to access byte array elements as an array of primitive types.
24  * @hide
25  */
26 final class ByteBufferViewVarHandle extends VarHandle {
27     private boolean nativeByteOrder;
28 
ByteBufferViewVarHandle(Class<?> arrayClass, ByteOrder byteOrder)29     private ByteBufferViewVarHandle(Class<?> arrayClass, ByteOrder byteOrder) {
30         super(arrayClass.getComponentType(), byte[].class, false /* isFinal */,
31               ByteBuffer.class, int.class);
32         this.nativeByteOrder = byteOrder.equals(ByteOrder.nativeOrder());
33     }
34 
create(Class<?> arrayClass, ByteOrder byteOrder)35     static ByteBufferViewVarHandle create(Class<?> arrayClass, ByteOrder byteOrder) {
36         return new ByteBufferViewVarHandle(arrayClass, byteOrder);
37     }
38 }
39