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.misc.streamquery;
  
  import java.util.Map;
  
  import org.apache.apex.malhar.lib.streamquery.condition.Condition;
  
  import com.datatorrent.api.DefaultInputPort;
  import com.datatorrent.api.DefaultOutputPort;
  import com.datatorrent.common.util.BaseOperator;
  
  /**
   * An implementation of BaseOperator that provides sql delete query semantic on live data stream. <br>
   * <p>
   * Stream rows passing condition are emitted on output port stream. <br>
   * <br>
   * <b>StateFull : NO,</b> all row data is processed in current time window. <br>
   * <b>Partitions : Yes, </b> No Input dependency among input rows. <br>
   * <br>
   * <b>Ports</b>:<br>
   * <b> inport : </b> Input hash map(row) port, expects
   * HashMap&lt;String,Object&gt;<<br>
   * <b> outport : </b> Output hash map(row) port, emits
   * HashMap&lt;String,Object&gt;<br>
   * <br>
   * <b> Properties : <b> <br>
   * <b> condition : </b> Select condition for selecting rows. <br>
   * <b> columns : </b> Column names/aggregate functions for select. <br>
   * <br>
   * @displayName Delete
   * @category Stream Manipulators
   * @tags sql delete operator
   * @since 0.3.3
   * @deprecated
   */
  @Deprecated
  public class DeleteOperator extends BaseOperator
  {
  
    /**
     * condition.
     */
    private Condition condition = null;
  
    /**
     * set condition.
     */
    public void setCondition(Condition condition)
    {
      this.condition = condition;
    }
  
    /**
     * Input port that takes a map of &lt;string,object&gt;.
     */
    public final transient DefaultInputPort<Map<String, Object>> inport = new DefaultInputPort<Map<String, Object>>()
    {
  
      @Override
      public void process(Map<String, Object> tuple)
      {
        if ((condition != null) && (!condition.isValidRow(tuple))) {
          outport.emit(tuple);
        }
      }
    };
  
    /**
     * Output port emits a map of &lt;string,object&gt;.
     */
    public final transient DefaultOutputPort<Map<String, Object>> outport = new DefaultOutputPort<Map<String, Object>>();
  }
  