1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
package com.jclark.xsl.expr;
import com.jclark.xsl.om.*;
public class DifferenceNodeIterator implements NodeIterator {
private NodeIterator iter1;
private NodeIterator iter2;
private Node node1;
private Node node2;
public DifferenceNodeIterator(NodeIterator iter1, NodeIterator iter2) throws XSLException {
this.iter1 = iter1;
this.iter2 = iter2;
this.node1 = iter1.next();
this.node2 = iter2.next();
}
public Node next() throws XSLException {
while (node1 != null) {
if (node2 == null) {
Node tem = node1;
node1 = iter1.next();
return tem;
}
int cmp = node1.compareTo(node2);
if (cmp < 0) {
Node tem = node1;
node1 = iter1.next();
return tem;
}
if (cmp == 0) {
node1 = iter1.next();
node2 = iter2.next();
}
else
node2 = iter2.next();
}
return null;
}
}
|
