| Line | Hits | Source |
|---|---|---|
| 1 | /* | |
| 2 | * Created on Mar 17, 2004 | |
| 3 | * | |
| 4 | * Copyright (c) 2003, the JUNG Project and the Regents of the University | |
| 5 | * of California | |
| 6 | * All rights reserved. | |
| 7 | * | |
| 8 | * This software is open-source under the BSD license; see either | |
| 9 | * "license.txt" or | |
| 10 | * http://jung.sourceforge.net/license.txt for a description. | |
| 11 | */ | |
| 12 | package edu.uci.ics.jung.graph.predicates; | |
| 13 | ||
| 14 | import edu.uci.ics.jung.graph.ArchetypeVertex; | |
| 15 | ||
| 16 | ||
| 17 | /** | |
| 18 | * A predicate that checks to see whether a vertex's user | |
| 19 | * data repository contains | |
| 20 | * the constructor-specified (key,datum) pair. This predicate | |
| 21 | * may be used as a constraint. | |
| 22 | */ | |
| 23 | public class UserDatumVertexPredicate extends VertexPredicate | |
| 24 | { | |
| 25 | public static final String message = "UserDatumVertexPredicate: "; | |
| 26 | private Object datum; | |
| 27 | private Object key; | |
| 28 | ||
| 29 | public UserDatumVertexPredicate(Object key, Object datum) | |
| 30 | 24 | { |
| 31 | 24 | if (key == null) |
| 32 | 0 | throw new IllegalArgumentException("UserDatumVertexPredicate " + |
| 33 | "key must be non-null"); | |
| 34 | 24 | this.datum = datum; |
| 35 | 24 | this.key = key; |
| 36 | 24 | } |
| 37 | ||
| 38 | /** | |
| 39 | * Returns <code>true</code> if the datum stored by <code>v</code> with | |
| 40 | * key value <code>key</code> (in the user data repository) is | |
| 41 | * <code>datum</code>. | |
| 42 | * | |
| 43 | * @see edu.uci.ics.jung.utils.UserData | |
| 44 | */ | |
| 45 | public boolean evaluateVertex(ArchetypeVertex v) | |
| 46 | { | |
| 47 | 652 | Object value = v.getUserDatum(key); |
| 48 | 652 | return ((datum == null && value == null) || datum.equals(value)); |
| 49 | } | |
| 50 | ||
| 51 | public String toString() | |
| 52 | { | |
| 53 | 1 | return message + "(" + key + ", " + datum + ")"; |
| 54 | } | |
| 55 | ||
| 56 | /** | |
| 57 | * Tests equality based on underlying objects | |
| 58 | */ | |
| 59 | public boolean equals( Object o ) { | |
| 60 | 16 | if (! (o instanceof UserDatumVertexPredicate)) |
| 61 | 13 | return false; |
| 62 | 3 | UserDatumVertexPredicate udvp = (UserDatumVertexPredicate) o; |
| 63 | 3 | return ( udvp.datum.equals( datum ) && udvp.key.equals(key)); |
| 64 | } | |
| 65 | ||
| 66 | public int hashCode() { | |
| 67 | 201 | return datum.hashCode() + key.hashCode(); |
| 68 | } | |
| 69 | ||
| 70 | /** | |
| 71 | * Returns the user data key which partially defines this predicate. | |
| 72 | */ | |
| 73 | public Object getKey() | |
| 74 | { | |
| 75 | 22 | return key; |
| 76 | } | |
| 77 | ||
| 78 | /** | |
| 79 | * Returns the user datum which partially defines this predicate. | |
| 80 | */ | |
| 81 | public Object getDatum() | |
| 82 | { | |
| 83 | 22 | return datum; |
| 84 | } | |
| 85 | } |
|
this report was generated by version 1.0.5 of jcoverage. |
copyright © 2003, jcoverage ltd. all rights reserved. |