src/main/java/org/apache/datasketches/memory/internal/HeapWritableBufferImpl.java

/*
 * 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 org.apache.datasketches.memory.internal;

import java.nio.ByteOrder;

import org.apache.datasketches.memory.MemoryRequestServer;
import org.apache.datasketches.memory.WritableBuffer;

import jdk.incubator.foreign.MemorySegment;

/**
 * Implementation of {@link WritableBuffer} for heap-based, native byte order.
 *
 * @author Roman Leventov
 * @author Lee Rhodes
 */
final class HeapWritableBufferImpl extends NativeWritableBufferImpl {

  HeapWritableBufferImpl(
      final MemorySegment seg,
      final int typeId,
      final MemoryRequestServer memReqSvr) {
    super(seg, typeId);
    if (memReqSvr != null) { setMemoryRequestServer(memReqSvr); }
  }

  @Override
  BaseWritableBufferImpl toDuplicate(final boolean readOnly, final ByteOrder byteOrder) {
    final int type = setReadOnlyType(typeId, readOnly) | DUPLICATE;
    return Util.isNativeByteOrder(byteOrder)
        ? new HeapWritableBufferImpl(seg, type, memReqSvr)
        : new HeapNonNativeWritableBufferImpl(seg, type, memReqSvr);
  }

}