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1
5 package com.opensymphony.webwork.util;
6
7 import com.opensymphony.xwork.Action;
8
9 import java.util.ArrayList  ;
10 import java.util.Iterator ;
11 import java.util.List ;
12 import java.util.StringTokenizer ;
13
14
15
21 public class IteratorGenerator implements Iterator , Action {
22
24 List values;
25 Object value;
26 String separator;
27
28 int count = 0;
30 int currentCount = 0;
31
32
34 public void setCount(int aCount) {
35 this.count = aCount;
36 }
37
38 public boolean getHasNext() {
39 return hasNext();
40 }
41
42 public Object getNext() {
43 return next();
44 }
45
46 public void setSeparator(String aChar) {
47 separator = aChar;
48 }
49
50 public void setValues(Object aValue) {
52 value = aValue;
53 }
54
55 public String execute() {
57 if (value == null) {
58 return ERROR;
59 } else {
60 values = new ArrayList ();
61
62 if (separator != null) {
63 StringTokenizer tokens = new StringTokenizer (value.toString(), separator);
64
65 while (tokens.hasMoreTokens()) {
66 values.add(tokens.nextToken());
67 }
68 } else {
69 values.add(value.toString());
70 }
71
72 if (count == 0) {
74 count = values.size();
75 }
76
77 return SUCCESS;
78 }
79 }
80
81 public boolean hasNext() {
83 return (value == null) ? false : ((currentCount < count) || (count == -1));
84 }
85
86 public Object next() {
87 try {
88 return values.get(currentCount % values.size());
89 } finally {
90 currentCount++;
91 }
92 }
93
94 public void remove() {
95 throw new UnsupportedOperationException ("Remove is not supported in IteratorGenerator.");
96 }
97 }
98 |
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