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1
6
7 package com.hp.hpl.jena.graph.impl;
8
9 import java.util.*;
10
11 import com.hp.hpl.jena.graph.*;
12 import com.hp.hpl.jena.util.IteratorCollection;
13 import com.hp.hpl.jena.util.iterator.ExtendedIterator;
14
15
25
26 public class SimpleBulkUpdateHandler implements BulkUpdateHandler
27 {
28 protected GraphWithPerform graph;
29 protected GraphEventManager manager;
30
31 public SimpleBulkUpdateHandler( GraphWithPerform graph )
32 {
33 this.graph = graph;
34 this.manager = graph.getEventManager();
35 }
36
37 public void add( Triple [] triples )
38 {
39 for (int i = 0; i < triples.length; i += 1) graph.performAdd( triples[i] );
40 manager.notifyAddArray( graph, triples );
41 }
42
43 public void add( List triples )
44 { add( triples, true ); }
45
46 protected void add( List triples, boolean notify )
47 {
48 for (int i = 0; i < triples.size(); i += 1) graph.performAdd( (Triple) triples.get(i) );
49 if (notify) manager.notifyAddList( graph, triples );
50 }
51
52 public void add( Iterator it )
53 { addIterator( it, true ); }
54
55 public void addIterator( Iterator it, boolean notify )
56 {
57 List s = IteratorCollection.iteratorToList( it );
58 add( s, false );
59 if (notify) manager.notifyAddIterator( graph, s );
60 }
61
62 public void add( Graph g )
63 { add( g, false ); }
64
65 public void add( Graph g, boolean withReifications )
66 {
67 addIterator( GraphUtil.findAll( g ), false );
68 if (withReifications) addReifications( graph, g );
69 manager.notifyAddGraph( graph, g );
70 }
71
72 public static void addReifications( Graph ours, Graph g )
73 {
74 Reifier r = g.getReifier();
75 Iterator it = r.allNodes();
76 while (it.hasNext())
77 {
78 Node node = (Node) it.next();
79 ours.getReifier().reifyAs( node, r.getTriple( node ) );
80 }
81 }
82
83 public static void deleteReifications( Graph ours, Graph g )
84 {
85 Reifier r = g.getReifier();
86 Iterator it = r.allNodes();
87 while (it.hasNext())
88 {
89 Node node = (Node) it.next();
90 ours.getReifier().remove( node, r.getTriple( node ) );
91 }
92 }
93
94 public void delete( Triple [] triples )
95 {
96 for (int i = 0; i < triples.length; i += 1) graph.performDelete( triples[i] );
97 manager.notifyDeleteArray( graph, triples );
98 }
99
100 public void delete( List triples )
101 { delete( triples, true ); }
102
103 protected void delete( List triples, boolean notify )
104 {
105 for (int i = 0; i < triples.size(); i += 1) graph.performDelete( (Triple) triples.get(i) );
106 if (notify) manager.notifyDeleteList( graph, triples );
107 }
108
109 public void delete( Iterator it )
110 { deleteIterator( it, true ); }
111
112 public void deleteIterator( Iterator it, boolean notify )
113 {
114 List L = IteratorCollection.iteratorToList( it );
115 delete( L, false );
116 if (notify) manager.notifyDeleteIterator( graph, L );
117 }
118
119 private List triplesOf( Graph g )
120 {
121 ArrayList L = new ArrayList();
122 Iterator it = g.find( Triple.ANY );
123 while (it.hasNext()) L.add( it.next() );
124 return L;
125 }
126
127 public void delete( Graph g )
128 { delete( g, false ); }
129
130 public void delete( Graph g, boolean withReifications )
131 {
132 if (g.dependsOn( graph ))
133 delete( triplesOf( g ) );
134 else
135 deleteIterator( GraphUtil.findAll( g ), false );
136 if (withReifications) deleteReifications( graph, g );
137 manager.notifyDeleteGraph( graph, g );
138 }
139
140 public void removeAll()
141 { removeAll( graph );
142 notifyRemoveAll(); }
143
144 protected void notifyRemoveAll()
145 { manager.notifyEvent( graph, GraphEvents.removeAll ); }
146
147 public void remove( Node s, Node p, Node o )
148 { removeAll( graph, s, p, o );
149 manager.notifyEvent( graph, GraphEvents.remove( s, p, o ) ); }
150
151 public static void removeAll( Graph g, Node s, Node p, Node o )
152 {
153 ExtendedIterator it = g.find( s, p, o );
154 try { while (it.hasNext()) { it.next(); it.remove(); } }
155 finally { it.close(); }
156 }
157
158 public static void removeAll( Graph g )
159 {
160 ExtendedIterator it = GraphUtil.findAll( g );
161 try { while (it.hasNext()) { it.next(); it.remove(); } }
162 finally { it.close(); }
163 }
164 }
165
166
167 |
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