1 /*
   2  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package java.util.stream;
  24 
  25 /**
  26  * An operation that injects or clears flags but otherwise performs no operation on elements.
  27  */
  28 @SuppressWarnings({"rawtypes", "unchecked"})
  29 public class FlagDeclaringOp<T> implements StatelessTestOp<T, T> {
  30     private final int flags;
  31     private final StreamShape shape;
  32 
  33     public FlagDeclaringOp(int flags) {
  34         this(flags, StreamShape.REFERENCE);
  35     }
  36 
  37     public FlagDeclaringOp(int flags, StreamShape shape) {
  38         this.flags = flags;
  39         this.shape = shape;
  40     }
  41 
  42     @Override
  43     public StreamShape outputShape() {
  44         return shape;
  45     }
  46 
  47     @Override
  48     public StreamShape inputShape() {
  49         return shape;
  50     }
  51 
  52     @Override
  53     public int opGetFlags() {
  54         return flags;
  55     }
  56 
  57     @Override
  58     public Sink<T> opWrapSink(int flags, boolean parallel, Sink sink) {
  59         return sink;
  60     }
  61 }