| /* |
| * 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.jena.tdb.base.file; |
| |
| import java.nio.ByteBuffer ; |
| |
| import org.apache.jena.atlas.lib.Closeable ; |
| |
| /** |
| * An allocator for retrieving ByteBuffers of a given size. |
| */ |
| public interface BufferAllocator extends Closeable |
| { |
| /** |
| * Allocate and return a ByteBuffer of the given size |
| * @param capacity the desired size of the ByteBuffer |
| * @return a ByteBuffer with the capacity set to the desired size |
| */ |
| public ByteBuffer allocate(int capacity); |
| |
| /** |
| * Call this method when you are finished with all of the ByteBuffers |
| * retrieved from allocate. The BufferAllocator is then free to reuse |
| * memory that was previously handed out. |
| */ |
| public void clear(); |
| } |