Coverage Report - org.apache.commons.functor.core.composite.Composite
 
Classes in this File Line Coverage Branch Coverage Complexity
Composite
90%
9/10
N/A
1
 
 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 org.apache.commons.functor.BinaryFunction;
 20  
 import org.apache.commons.functor.BinaryPredicate;
 21  
 import org.apache.commons.functor.UnaryFunction;
 22  
 import org.apache.commons.functor.UnaryPredicate;
 23  
 import org.apache.commons.functor.UnaryProcedure;
 24  
 
 25  
 /**
 26  
  * Utility/fluent methods for creating composite functors.
 27  
  * @version $Revision: 1166365 $ $Date: 2011-09-07 22:06:50 +0200 (Wed, 07 Sep 2011) $
 28  
  * @author Rodney Waldhoff
 29  
  */
 30  
 public final class Composite {
 31  
     // constructor - for beanish apis
 32  
     // ------------------------------------------------------------------------
 33  
     /**
 34  
      * <p>{@code Composite} instances should NOT be constructed in
 35  
      * standard programming. Instead, the methods of the class should be invoked
 36  
      * statically.</p>
 37  
      *
 38  
      * <p>This constructor is public to permit tools that require a JavaBean
 39  
      * instance to operate.</p>
 40  
      */
 41  2
     public Composite() { }
 42  
 
 43  
     /**
 44  
      * Create a composite UnaryProcedure.
 45  
      * @param procedure UnaryProcedure to execute against output of <code>f</code>
 46  
      * @return CompositeUnaryProcedure<A>
 47  
      */
 48  
     public static <A> CompositeUnaryProcedure<A> procedure(UnaryProcedure<? super A> procedure) {
 49  0
         return new CompositeUnaryProcedure<A>(procedure);
 50  
     }
 51  
 
 52  
     /**
 53  
      * Create a composite UnaryProcedure.
 54  
      * @param procedure UnaryProcedure to execute against output of <code>f</code>
 55  
      * @param function UnaryFunction to apply
 56  
      * @return CompositeUnaryProcedure<A>
 57  
      */
 58  
     public static <A, T> CompositeUnaryProcedure<A> procedure(UnaryProcedure<? super T> procedure,
 59  
             UnaryFunction<? super A, ? extends T> function) {
 60  10
         return new CompositeUnaryProcedure<T>(procedure).of(function);
 61  
     }
 62  
 
 63  
     /**
 64  
      * Create a composite UnaryPredicate.
 65  
      * @param pred UnaryPredicate to test the output of <code>f</code>
 66  
      * @return CompositeUnaryPredicate<A>
 67  
      */
 68  
     public static <A> CompositeUnaryPredicate<A> predicate(UnaryPredicate<? super A> pred) {
 69  10
         return new CompositeUnaryPredicate<A>(pred);
 70  
     }
 71  
 
 72  
     /**
 73  
      * Create a composite UnaryPredicate.
 74  
      * @param predicate UnaryPredicate to test the output of <code>f</code>
 75  
      * @param function UnaryFunction to apply
 76  
      * @return CompositeUnaryPredicate<A>
 77  
      */
 78  
     public static <A, T> CompositeUnaryPredicate<A> predicate(UnaryPredicate<? super T> predicate,
 79  
             UnaryFunction<? super A, ? extends T> function) {
 80  10
         return new CompositeUnaryPredicate<T>(predicate).of(function);
 81  
     }
 82  
 
 83  
     /**
 84  
      * Create a composite BinaryPredicate.
 85  
      * @param p BinaryPredicate to test <i>output(</i><code>f</code><i>), output(</i><code>g</code><i>)</i>
 86  
      * @param g left UnaryFunction
 87  
      * @param h right UnaryFunction
 88  
      * @return BinaryPredicate
 89  
      */
 90  
     public static <L, R, G, H> UnaryCompositeBinaryPredicate<L, R> predicate(
 91  
             BinaryPredicate<? super G, ? super H> p, UnaryFunction<? super L, ? extends G> g,
 92  
             UnaryFunction<? super R, ? extends H> h) {
 93  6
         return new UnaryCompositeBinaryPredicate<L, R>(p, g, h);
 94  
     }
 95  
 
 96  
     /**
 97  
      * Create a composite UnaryFunction.
 98  
      * @param f UnaryFunction to apply to the output of <code>g</code>
 99  
      * @return UnaryFunction
 100  
      */
 101  
     public static <A, T> CompositeUnaryFunction<A, T> function(UnaryFunction<? super A, ? extends T> f) {
 102  10
         return new CompositeUnaryFunction<A, T>(f);
 103  
     }
 104  
 
 105  
     /**
 106  
      * Create a composite UnaryFunction.
 107  
      * @param f UnaryFunction to apply to the output of <code>g</code>
 108  
      * @param g UnaryFunction to apply first
 109  
      * @return UnaryFunction
 110  
      */
 111  
     public static <A, X, T> CompositeUnaryFunction<A, T> function(UnaryFunction<? super X, ? extends T> f,
 112  
             UnaryFunction<? super A, ? extends X> g) {
 113  28
         return new CompositeUnaryFunction<X, T>(f).of(g);
 114  
     }
 115  
 
 116  
 //    /**
 117  
 //     * Chain a BinaryFunction to a UnaryFunction.
 118  
 //     * @param <L>
 119  
 //     * @param <R>
 120  
 //     * @param <X>
 121  
 //     * @param <T>
 122  
 //     * @param f UnaryFunction to apply to the output of <code>g</code>
 123  
 //     * @param g BinaryFunction to apply first
 124  
 //     * @return BinaryFunction<L, R, T>
 125  
 //     */
 126  
 //    public static <L, R, X, T> BinaryFunction<L, R, T> function(UnaryFunction<? super X, ? extends T> f,
 127  
 //             BinaryFunction<? super L,
 128  
 //             ? super R, ? extends X> g) {
 129  
 //        return new CompositeUnaryFunction<X, T>(f).of(g);
 130  
 //    }
 131  
 
 132  
     /**
 133  
      * Create a composite<UnaryFunction> BinaryFunction.
 134  
      * @param f BinaryFunction to apply to <i>output(</i><code>f</code><i>), output(</i><code>g</code><i>)</i>
 135  
      * @param g left UnaryFunction
 136  
      * @param h right UnaryFunction
 137  
      * @return BinaryFunction
 138  
      */
 139  
     public static <L, R, G, H, T> UnaryCompositeBinaryFunction<L, R, T> function(
 140  
             BinaryFunction<? super G, ? super H, ? extends T> f, UnaryFunction<? super L, ? extends G> g,
 141  
             UnaryFunction<? super R, ? extends H> h) {
 142  10
         return new UnaryCompositeBinaryFunction<L, R, T>(f, g, h);
 143  
     }
 144  
 
 145  
     /**
 146  
      * Create a composite<BinaryFunction> BinaryFunction.
 147  
      * @param f BinaryFunction to apply to <i>output(</i><code>f</code><i>), output(</i><code>g</code><i>)</i>
 148  
      * @param g left BinaryFunction
 149  
      * @param h right BinaryFunction
 150  
      * @return BinaryFunction
 151  
      */
 152  
     public static <L, R, G, H, T> BinaryCompositeBinaryFunction<L, R, T> function(
 153  
             BinaryFunction<? super G, ? super H, ? extends T> f, BinaryFunction<? super L, ? super R, ? extends G> g,
 154  
             BinaryFunction<? super L, ? super R, ? extends H> h) {
 155  2
         return new BinaryCompositeBinaryFunction<L, R, T>(f, g, h);
 156  
     }
 157  
 }