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 FilterNull verifies that every value in the argument values {@link cascading.tuple.Tuple} 030 * is not a null value. If a null value is encountered, the current Tuple will be filtered out. 031 * 032 * @see FilterNotNull 033 */ 034 public class FilterNull 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 }