    001/*
    002 * Copyright (c) 2007-2017 Xplenty, Inc. All Rights Reserved.
    003 *
    004 * Project and contact information: http://www.cascading.org/
    005 *
    006 * This file is part of the Cascading project.
    007 *
    008 * Licensed under the Apache License, Version 2.0 (the "License");
    009 * you may not use this file except in compliance with the License.
    010 * You may obtain a copy of the License at
    011 *
    012 *     http://www.apache.org/licenses/LICENSE-2.0
    013 *
    014 * Unless required by applicable law or agreed to in writing, software
    015 * distributed under the License is distributed on an "AS IS" BASIS,
    016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    017 * See the License for the specific language governing permissions and
    018 * limitations under the License.
    019 */
    020
    021package cascading.operation.filter;
    022
    023import cascading.flow.FlowProcess;
    024import cascading.operation.BaseOperation;
    025import cascading.operation.Filter;
    026import cascading.operation.FilterCall;
    027
    028/**
    029 * Class FilterNotNull verifies that every value in the argument values {@link cascading.tuple.Tuple}
    030 * is a null value. If a non-null value is encountered, the current Tuple will be filtered out.
    031 *
    032 * @see FilterNull
    033 */
    034public class FilterNotNull extends BaseOperation implements Filter
    035  {
    036  @Override
    037  public boolean isRemove( FlowProcess flowProcess, FilterCall filterCall )
    038    {
    039    for( Object value : filterCall.getArguments().getTuple() )
    040      {
    041      if( value != null )
    042        return true;
    043      }
    044
    045    return false;
    046    }
    047  }