Coverage Report - org.apache.commons.functor.core.composite.TransformedBinaryProcedure
 
Classes in this File Line Coverage Branch Coverage Complexity
TransformedBinaryProcedure
0%
0/14
0%
0/12
1.5
TransformedBinaryProcedure$1
N/A
N/A
1.5
TransformedBinaryProcedure$Helper
0%
0/7
N/A
1.5
 
 1  
 /*
 2  
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3  
  * contributor license agreements.  See the NOTICE file distributed with
 4  
  * this work for additional information regarding copyright ownership.
 5  
  * The ASF licenses this file to You under the Apache License, Version 2.0
 6  
  * (the "License"); you may not use this file except in compliance with
 7  
  * the License.  You may obtain a copy of the License at
 8  
  *
 9  
  *      http://www.apache.org/licenses/LICENSE-2.0
 10  
  *
 11  
  * Unless required by applicable law or agreed to in writing, software
 12  
  * distributed under the License is distributed on an "AS IS" BASIS,
 13  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  * See the License for the specific language governing permissions and
 15  
  * limitations under the License.
 16  
  */
 17  
 package org.apache.commons.functor.core.composite;
 18  
 
 19  
 import java.io.Serializable;
 20  
 
 21  
 import org.apache.commons.functor.BinaryFunction;
 22  
 import org.apache.commons.functor.BinaryProcedure;
 23  
 import org.apache.commons.functor.UnaryProcedure;
 24  
 
 25  
 /**
 26  
  * A BinaryProcedure composed of a BinaryFunction whose result is then run through a UnaryProcedure.
 27  
  * @version $Revision: 1171154 $ $Date: 2011-09-15 17:58:38 +0200 (Thu, 15 Sep 2011) $
 28  
  * @author Matt Benson
 29  
  */
 30  
 public class TransformedBinaryProcedure<L, R> implements BinaryProcedure<L, R>, Serializable {
 31  
     /**
 32  
      * serialVersionUID declaration.
 33  
      */
 34  
     private static final long serialVersionUID = -7559182250073101798L;
 35  
 
 36  
     /**
 37  
      * Type-remembering helper
 38  
      * @param <X>
 39  
      */
 40  0
     private static final class Helper<X, L, R> implements BinaryProcedure<L, R>, Serializable {
 41  
         /**
 42  
          * serialVersionUID declaration.
 43  
          */
 44  
         private static final long serialVersionUID = -4229496007094829301L;
 45  
         private BinaryFunction<? super L, ? super R, ? extends X> function;
 46  
         private UnaryProcedure<? super X> procedure;
 47  
 
 48  
         /**
 49  
          * Create a new Helper.
 50  
          * @param function BinaryFunction
 51  
          * @param procedure UnaryFunction
 52  
          */
 53  
         private Helper(BinaryFunction<? super L, ? super R, ? extends X> function,
 54  0
                 UnaryProcedure<? super X> procedure) {
 55  0
             this.function = function;
 56  0
             this.procedure = procedure;
 57  0
         }
 58  
 
 59  
         /**
 60  
          * {@inheritDoc}
 61  
          */
 62  
         public void run(L left, R right) {
 63  0
             procedure.run(function.evaluate(left, right));
 64  0
         }
 65  
     }
 66  
 
 67  
     private final Helper<?, L, R> helper;
 68  
 
 69  
     /**
 70  
      * Create a new TransformedBinaryProcedure.
 71  
      * @param <X>
 72  
      * @param function BinaryFunction
 73  
      * @param procedure UnaryProcedure
 74  
      */
 75  
     public <X> TransformedBinaryProcedure(BinaryFunction<? super L, ? super R, ? extends X> function,
 76  0
             UnaryProcedure<? super X> procedure) {
 77  0
         this.helper = new Helper<X, L, R>(function, procedure);
 78  0
     }
 79  
 
 80  
     /**
 81  
      * {@inheritDoc}
 82  
      */
 83  
     public final void run(L left, R right) {
 84  0
         helper.run(left, right);
 85  0
     }
 86  
 
 87  
     /**
 88  
      * {@inheritDoc}
 89  
      */
 90  
     @Override
 91  
     public final boolean equals(Object obj) {
 92  0
         return obj == this || obj instanceof TransformedBinaryProcedure<?, ?>
 93  
                 && equals((TransformedBinaryProcedure<?, ?>) obj);
 94  
     }
 95  
 
 96  
     /**
 97  
      * Learn whether another TransformedBinaryProcedure is equal to <code>this</code>.
 98  
      * @param that instance to test
 99  
      * @return whether equal
 100  
      */
 101  
     public final boolean equals(TransformedBinaryProcedure<?, ?> that) {
 102  0
         return that != null && that.helper.function.equals(this.helper.function)
 103  
                 && that.helper.procedure.equals(this.helper.procedure);
 104  
     }
 105  
 
 106  
     /**
 107  
      * {@inheritDoc}
 108  
      */
 109  
     @Override
 110  
     public int hashCode() {
 111  0
         int result = "TransformedBinaryProcedure".hashCode();
 112  0
         result <<= 2;
 113  0
         result |= helper.procedure.hashCode();
 114  0
         result <<= 2;
 115  0
         result |= helper.function.hashCode();
 116  0
         return result;
 117  
     }
 118  
 
 119  
     /**
 120  
      * {@inheritDoc}
 121  
      */
 122  
     @Override
 123  
     public String toString() {
 124  0
         return "TransformedBinaryProcedure<" + helper.function + "; " + helper.procedure + ">";
 125  
     }
 126  
 }