/*
* 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.cassandra.utils.memory;
import java.nio.ByteBuffer;
import org.apache.cassandra.config.CFMetaData;
import org.apache.cassandra.db.BufferDecoratedKey;
import org.apache.cassandra.db.Cell;
import org.apache.cassandra.db.CounterCell;
import org.apache.cassandra.db.DecoratedKey;
import org.apache.cassandra.db.DeletedCell;
import org.apache.cassandra.db.ExpiringCell;
import org.apache.cassandra.utils.concurrent.OpOrder;
public abstract class MemtableBufferAllocator extends MemtableAllocator
{
protected MemtableBufferAllocator(SubAllocator onHeap, SubAllocator offHeap)
{
super(onHeap, offHeap);
}
public Cell clone(Cell cell, CFMetaData cfm, OpOrder.Group writeOp)
{
return cell.localCopy(cfm, allocator(writeOp));
}
public CounterCell clone(CounterCell cell, CFMetaData cfm, OpOrder.Group writeOp)
{
return cell.localCopy(cfm, allocator(writeOp));
}
public DeletedCell clone(DeletedCell cell, CFMetaData cfm, OpOrder.Group writeOp)
{
return cell.localCopy(cfm, allocator(writeOp));
}
public ExpiringCell clone(ExpiringCell cell, CFMetaData cfm, OpOrder.Group writeOp)
{
return cell.localCopy(cfm, allocator(writeOp));
}
public DecoratedKey clone(DecoratedKey key, OpOrder.Group writeOp)
{
return new BufferDecoratedKey(key.getToken(), allocator(writeOp).clone(key.getKey()));
}
public abstract ByteBuffer allocate(int size, OpOrder.Group opGroup);
protected AbstractAllocator allocator(OpOrder.Group writeOp)
{
return new ContextAllocator(writeOp, this);
}
}