/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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 java.nio; /** * FloatArrayBuffer, ReadWriteFloatArrayBuffer and ReadOnlyFloatArrayBuffer * compose the implementation of array based float buffers. *

* FloatArrayBuffer implements all the shared readonly methods and is extended * by the other two classes. *

*

* All methods are marked final for runtime performance. *

* */ abstract class FloatArrayBuffer extends FloatBuffer { protected final float[] backingArray; protected final int offset; FloatArrayBuffer(float[] array) { this(array.length, array, 0); } FloatArrayBuffer(int capacity) { this(capacity, new float[capacity], 0); } FloatArrayBuffer(int capacity, float[] backingArray, int offset) { super(capacity); this.backingArray = backingArray; this.offset = offset; } @Override public final float get() { if (position == limit) { throw new BufferUnderflowException(); } return backingArray[offset + position++]; } @Override public final float get(int index) { checkIndex(index); return backingArray[offset + index]; } @Override public final FloatBuffer get(float[] dst, int dstOffset, int floatCount) { if (floatCount > remaining()) { throw new BufferUnderflowException(); } System.arraycopy(backingArray, offset + position, dst, dstOffset, floatCount); position += floatCount; return this; } @Override public final boolean isDirect() { return false; } @Override public final ByteOrder order() { return ByteOrder.nativeOrder(); } }