001 /* 002 * Copyright (c) 2007-2015 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.tuple.util; 022 023 import cascading.tuple.Fields; 024 import cascading.tuple.Tuple; 025 import cascading.tuple.Tuples; 026 027 /** This class is experimental and for internal use only. */ 028 public class TupleViews 029 { 030 public static Tuple createComposite( Tuple... tuples ) 031 { 032 return Tuples.create( new CompositeTupleList( tuples ) ); 033 } 034 035 public static Tuple createComposite( Fields... fields ) 036 { 037 return Tuples.create( new CompositeTupleList( fields ) ); 038 } 039 040 public static Tuple createComposite( Fields[] fields, Tuple[] tuples ) 041 { 042 return Tuples.create( new CompositeTupleList( fields, tuples ) ); 043 } 044 045 public static Tuple createNarrow( int[] basePos ) 046 { 047 return Tuples.create( new NarrowTupleList( basePos ) ); 048 } 049 050 public static Tuple createNarrow( int[] basePos, Tuple tuple ) 051 { 052 return Tuples.create( new NarrowTupleList( basePos, tuple ) ); 053 } 054 055 public static Tuple createOverride( Fields base, Fields override ) 056 { 057 return Tuples.create( new OverrideTupleList( base, override ) ); 058 } 059 060 public static Tuple createOverride( Fields base, Tuple baseTuple, Fields override, Tuple overrideTuple ) 061 { 062 return Tuples.create( new OverrideTupleList( base, baseTuple, override, overrideTuple ) ); 063 } 064 065 public static Tuple createOverride( int[] basePos, Tuple baseTuple, int[] overridePos, Tuple overrideTuple ) 066 { 067 return Tuples.create( new OverrideTupleList( basePos, baseTuple, overridePos, overrideTuple ) ); 068 } 069 070 public static Tuple createObjectArray() 071 { 072 return Tuples.create( new ObjectArrayList() ); 073 } 074 075 public static Tuple createObjectArray( Object... values ) 076 { 077 return Tuples.create( new ObjectArrayList( values ) ); 078 } 079 080 public static <V> Tuple reset( Tuple tuple, V... values ) 081 { 082 ( (Resettable<V>) Tuple.elements( tuple ) ).reset( values ); 083 084 return tuple; 085 } 086 }