content: /*
   * 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.carbondata.core.index.dev;
  
  import java.io.IOException;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  
  import org.apache.carbondata.core.index.IndexInputSplit;
  import org.apache.carbondata.core.index.Segment;
  import org.apache.carbondata.core.index.dev.expr.IndexExprWrapper;
  import org.apache.carbondata.core.indexstore.BlockletIndexWrapper;
  import org.apache.carbondata.core.indexstore.TableBlockIndexUniqueIdentifier;
  import org.apache.carbondata.core.indexstore.TableBlockIndexUniqueIdentifierWrapper;
  
  /**
   * Interface for index caching
   */
  public interface CacheableIndex {
  
    /**
     * Add the blockletIndexWrapper to cache for key tableBlockIndexUniqueIdentifier
     *
     * @param tableBlockIndexUniqueIdentifierWrapper
     * @param blockletIndexWrapper
     */
    void cache(TableBlockIndexUniqueIdentifierWrapper tableBlockIndexUniqueIdentifierWrapper,
        BlockletIndexWrapper blockletIndexWrapper) throws IOException;
  
    /**
     * Get all the uncached distributableList from the list.
     *
     * @param distributableList
     * @return
     */
    List<IndexInputSplit> getAllUncached(List<IndexInputSplit> distributableList)
        throws IOException;
  
    List<IndexInputSplit> getAllUncached(
        List<Segment> segments, IndexExprWrapper indexExprWrapper) throws IOException;
  
    void updateSegmentIndex(
        Map<String, Set<TableBlockIndexUniqueIdentifier>> indexUniqueIdentifier);
  }