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comparison src/main/java/jp/ac/u_ryukyu/ie/cr/bbs/local/IterableConverter.java @ 1:64a72a7a0491

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add local bbs
author tatsuki
date Mon, 27 Jun 2016 04:24:25 +0900
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0:d04e3e9069aa 1:64a72a7a0491
1 package jp.ac.u_ryukyu.ie.cr.bbs.local;
2
3 import java.util.Iterator;
4
5 public class IterableConverter<A,B> implements Iterable<A>
6 {
7 private final Iterable<B> iterable;
8 private final Converter<A,B> converter;
9
10 public IterableConverter(Iterable<B> _iterable,Converter<A,B> _converter)
11 {
12 iterable = _iterable;
13 converter = _converter;
14 }
15
16 public Iterator<A> iterator()
17 {
18 return new IteratorConverter<A,B>(iterable.iterator(),converter);
19 }
20
21 private static final class IteratorConverter<A,B> implements Iterator<A>
22 {
23 private final Iterator<B> iterator;
24 private final Converter<A,B> converter;
25
26 public IteratorConverter(Iterator<B> _iterator,Converter<A,B> _converter)
27 {
28 iterator = _iterator;
29 converter = _converter;
30 }
31
32 public boolean hasNext()
33 {
34 return iterator.hasNext();
35 }
36
37 public A next()
38 {
39 return converter.conv(iterator.next());
40 }
41
42 public void remove()
43 {
44 iterator.remove();
45 }
46 }
47
48 public static interface Converter<A,B>
49 {
50 public A conv(B _b);
51 }
52 }