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.indexstore;
  
  import java.io.Serializable;
  
  import org.apache.carbondata.core.indexstore.row.IndexRow;
  import org.apache.carbondata.core.indexstore.schema.CarbonRowSchema;
  import org.apache.carbondata.core.util.ThreadLocalTaskInfo;
  
  /**
   * Store the index row @{@link IndexRow}
   */
  public abstract class AbstractMemoryDMStore implements Serializable {
  
    protected boolean isMemoryFreed;
  
    protected boolean isSerialized;
  
    protected final String taskId = ThreadLocalTaskInfo.getCarbonTaskInfo().getTaskId();
  
    public abstract void addIndexRow(CarbonRowSchema[] schema, IndexRow indexRow);
  
    public abstract IndexRow getIndexRow(CarbonRowSchema[] schema, int index);
  
    public abstract void freeMemory();
  
    public abstract int getMemoryUsed();
  
    public abstract int getRowCount();
  
    public void finishWriting() {
      // do nothing in default implementation
    }
  
    public void serializeMemoryBlock() {
    }
  
    public void copyToMemoryBlock() {
    }
  
    public UnsafeMemoryDMStore convertToUnsafeDMStore(CarbonRowSchema[] schema) {
      throw new UnsupportedOperationException("Operation not allowed");
    }
  
    public boolean isSerialized() {
      return isSerialized;
    }
  }