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A module that is everything required to understands Druid Segments
/*
* 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.druid.segment.writeout;
import org.apache.druid.java.util.common.io.Closer;
import java.io.IOException;
public final class OffHeapMemorySegmentWriteOutMedium implements SegmentWriteOutMedium
{
private final Closer closer = Closer.create();
@Override
public WriteOutBytes makeWriteOutBytes()
{
DirectByteBufferWriteOutBytes writeOutBytes = new DirectByteBufferWriteOutBytes();
closer.register(writeOutBytes::free);
return writeOutBytes;
}
@Override
public SegmentWriteOutMedium makeChildWriteOutMedium()
{
OffHeapMemorySegmentWriteOutMedium medium = new OffHeapMemorySegmentWriteOutMedium();
closer.register(medium);
return medium;
}
@Override
public Closer getCloser()
{
return closer;
}
@Override
public void close() throws IOException
{
closer.close();
}
}