trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/file/CompactionStrategy.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.jackrabbit.oak.segment.file;

import java.io.IOException;

import org.apache.jackrabbit.oak.segment.Revisions;
import org.apache.jackrabbit.oak.segment.SegmentReader;
import org.apache.jackrabbit.oak.segment.SegmentTracker;
import org.apache.jackrabbit.oak.segment.compaction.SegmentGCOptions;
import org.apache.jackrabbit.oak.segment.file.cancel.Canceller;
import org.apache.jackrabbit.oak.segment.file.tar.TarFiles;
import org.apache.jackrabbit.oak.spi.blob.BlobStore;

interface CompactionStrategy {

    interface Context {

        GCListener getGCListener();

        GCJournal getGCJournal();

        SegmentGCOptions getGCOptions();

        GCNodeWriteMonitor getCompactionMonitor();

        SegmentReader getSegmentReader();

        SegmentWriterFactory getSegmentWriterFactory();

        Revisions getRevisions();

        TarFiles getTarFiles();

        BlobStore getBlobStore();

        Canceller getCanceller();

        int getGCCount();

        SuccessfulCompactionListener getSuccessfulCompactionListener();

        Flusher getFlusher();

        SegmentTracker getSegmentTracker();

    }

    CompactionResult compact(Context context) throws IOException;

}