    001    /*
    002     * Copyright (c) 2007-2014 Concurrent, 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
    021    package cascading.operation.filter;
    022
    023    import cascading.flow.FlowProcess;
    024    import cascading.operation.BaseOperation;
    025    import cascading.operation.Filter;
    026    import 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     */
    034    public 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      }