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.apex.malhar.contrib.enrich;
  
  import java.util.List;
  import java.util.Map;
  
  import org.apache.apex.malhar.lib.util.FieldInfo;
  import org.apache.hadoop.classification.InterfaceStability;
  
  /**
   * ReadOnly abstract implementation of BackendLoader.
   *
   * @since 3.4.0
   */
  @InterfaceStability.Evolving
  public abstract class ReadOnlyBackup implements BackendLoader
  {
    protected transient List<FieldInfo> includeFieldInfo;
    protected transient List<FieldInfo> lookupFieldInfo;
  
    @Override
    public void put(Object key, Object value)
    {
      throw new UnsupportedOperationException("Not supported operation");
    }
  
    @Override
    public void putAll(Map<Object, Object> m)
    {
      throw new UnsupportedOperationException("Not supported operation");
    }
  
    @Override
    public void remove(Object key)
    {
      throw new UnsupportedOperationException("Not supported operation");
    }
  
    @Override
    public void setFieldInfo(List<FieldInfo> lookupFieldInfo, List<FieldInfo> includeFieldInfo)
    {
      this.includeFieldInfo = includeFieldInfo;
      this.lookupFieldInfo = lookupFieldInfo;
    }
  }
  