Source Code Cross Referenced for ApplyUnary.java in  » Development » jga-Generic-Algorithms » net » sf » jga » fn » adaptor » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Development » jga Generic Algorithms » net.sf.jga.fn.adaptor 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        // ============================================================================
02:        // $Id: ApplyUnary.java,v 1.9 2006/08/16 03:02:21 davidahall Exp $
03:        // Copyright (c) 2004-2005  David A. Hall
04:        // ============================================================================
05:        // The contents of this file are subject to the Common Development and
06:        // Distribution License (CDDL), Version 1.0 (the License); you may not use this 
07:        // file except in compliance with the License.  You should have received a copy
08:        // of the the License along with this file: if not, a copy of the License is 
09:        // available from Sun Microsystems, Inc.
10:        //
11:        // http://www.sun.com/cddl/cddl.html
12:        //
13:        // From time to time, the license steward (initially Sun Microsystems, Inc.) may
14:        // publish revised and/or new versions of the License.  You may not use,  
15:        // distribute, or otherwise make this file available under subsequent versions 
16:        // of the License.
17:        // 
18:        // Alternatively, the contents of this file may be used under the terms of the 
19:        // GNU Lesser General Public License Version 2.1 or later (the "LGPL"), in which
20:        // case the provisions of the LGPL are applicable instead of those above. If you 
21:        // wish to allow use of your version of this file only under the terms of the 
22:        // LGPL, and not to allow others to use your version of this file under the 
23:        // terms of the CDDL, indicate your decision by deleting the provisions above 
24:        // and replace them with the notice and other provisions required by the LGPL. 
25:        // If you do not delete the provisions above, a recipient may use your version 
26:        // of this file under the terms of either the CDDL or the LGPL.
27:        // 
28:        // This library is distributed in the hope that it will be useful,
29:        // but WITHOUT ANY WARRANTY; without even the implied warranty of
30:        // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
31:        // ============================================================================
32:
33:        package net.sf.jga.fn.adaptor;
34:
35:        import net.sf.jga.fn.UnaryFunctor;
36:        import net.sf.jga.util.ArrayUtils;
37:
38:        /**
39:         * Produces an array containing the results of  passing an input argument to a given set of unary
40:         * functors.
41:         * <p>
42:         * Copyright &copy; 2004-2005  David A. Hall
43:         * @author <a href="mailto:davidahall@users.sf.net">David A. Hall</a>
44:         */
45:
46:        public class ApplyUnary<T> extends UnaryFunctor<T, Object[]> {
47:
48:            static final long serialVersionUID = -7934367561074978884L;
49:
50:            private UnaryFunctor<T, ?>[] _functors;
51:
52:            public ApplyUnary(UnaryFunctor<T, ?>... functors) {
53:                _functors = functors;
54:            }
55:
56:            public UnaryFunctor<T, ?>[] getFunctors() {
57:                return _functors;
58:            }
59:
60:            public Object[] fn(T arg) {
61:                Object[] result = new Object[_functors.length];
62:                for (int i = 0; i < _functors.length; ++i) {
63:                    result[i] = _functors[i].fn(arg);
64:                }
65:
66:                return result;
67:            }
68:
69:            /**
70:             * Calls the Visitor's <code>visit(ApplyUnary)</code> method, if it
71:             * implements the nested Visitor interface.
72:             */
73:            public void accept(net.sf.jga.fn.Visitor v) {
74:                if (v instanceof  ApplyUnary.Visitor)
75:                    ((ApplyUnary.Visitor) v).visit(this );
76:                else
77:                    v.visit(this );
78:            }
79:
80:            // Object overrides
81:
82:            public String toString() {
83:                return ArrayUtils.toString(_functors);
84:            }
85:
86:            // AcyclicVisitor
87:
88:            /**
89:             * Interface for classes that may interpret an <b>ApplyUnary</b> predicate.
90:             */
91:            public interface Visitor extends net.sf.jga.fn.Visitor {
92:                public void visit(ApplyUnary host);
93:            }
94:        }
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