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1
3 package org.python.core;
4 import java.util.*;
5
6 class CollectionIter extends PyObject {
7 PyObject findCollection(Object  object) {
8 if (object instanceof Vector) {
9 return new EnumerationIter(((Vector)object).elements());
10 }
11 if (object instanceof Enumeration) {
12 return new EnumerationIter(((Enumeration)object));
13 }
14 if (object instanceof Dictionary) {
15 return new EnumerationIter(((Dictionary)object).keys());
16 }
17
18 return null;
19 }
20
21 public PyObject next() {
22 PyObject ret = __iternext__();
23 if (ret == null)
24 throw Py.StopIteration(null);
25 return ret;
26 }
27
28 }
29
30 class EnumerationIter extends CollectionIter {
31 private Enumeration proxy;
32
33 public EnumerationIter(Enumeration proxy) {
34 this.proxy = proxy;
35 }
36
37 public PyObject __iternext__() {
38 if (!proxy.hasMoreElements())
39 return null;
40 return Py.java2py(proxy.nextElement());
41 }
42 }
43 |
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Java API By Example, From Geeks To Geeks.