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34 package info.magnolia.jcr.iterator;
35
36 import info.magnolia.jcr.decoration.ContentDecorator;
37 import info.magnolia.jcr.predicate.AbstractPredicate;
38 import info.magnolia.jcr.wrapper.NodeWrapperFactory;
39
40 import javax.jcr.Node;
41 import javax.jcr.NodeIterator;
42
43
44
45
46
47 public class FilteringNodeIterator extends FilteringRangeIterator<Node> implements NodeIterator {
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52 private NodeWrapperFactory wrapperFactory;
53 private AbstractPredicate<Node> predicate;
54 private ContentDecorator decorator;
55
56 public FilteringNodeIterator(NodeIterator nodeIterator, AbstractPredicate<Node> predicate) {
57 super(nodeIterator);
58 this.predicate = predicate;
59 }
60
61 public FilteringNodeIterator(NodeIterator nodeIterator, AbstractPredicate<Node> predicate, ContentDecorator decorator) {
62 super(nodeIterator);
63 this.predicate = predicate;
64 this.decorator = decorator;
65 }
66
67
68
69
70 public FilteringNodeIterator(NodeIterator nodeIterator, AbstractPredicate<Node> predicate, NodeWrapperFactory wrapperFactory) {
71 super(nodeIterator);
72 this.wrapperFactory = wrapperFactory;
73 this.predicate = predicate;
74 }
75
76 @Override
77 public Node next() {
78 return wrapNode(super.next());
79 }
80
81 @Override
82 public Node nextNode() {
83 return wrapNode(super.next());
84 }
85
86 protected Node wrapNode(Node node) {
87 if (decorator != null) {
88 return decorator.wrapNode(node);
89 } else if (wrapperFactory != null) {
90 return wrapperFactory.wrapNode(node);
91 } else {
92 return node;
93 }
94 }
95
96 @Override
97 protected boolean evaluate(Node node) {
98 return predicate == null || predicate.evaluate(node);
99 }
100 }