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1 package org.apache.tapestry.pets.presentation.components;
2
3 public class PagedModel
4 {
5 private int pageSize;
6 private int nextPageNumber;
7 private int previousPageNumber;
8 private int pageToShow;
9 private int itemCount;
10 private int pageCount;
11
12 public boolean getHasNextPage()
13 {
14 return (getPageToShow() < getPageCount()) ? true : false;
15 }
16
17 public boolean getHasPreviousPage()
18 {
19 return (getPageToShow() > 1) ? true : false;
20 }
21
22 public int getNextPageNumber()
23 {
24 return nextPageNumber;
25 }
26
27 public int getPageSize()
28 {
29 return (pageSize == 0) ? 4 : pageSize;
31 }
32
33 public int getPageToShow()
34 {
35 return (pageToShow == 0) ? 1 : pageToShow;
36 }
37
38 public int getPreviousPageNumber()
39 {
40 return previousPageNumber;
41 }
42
43 public void setNextPageNumber(int nextPageNumber)
44 {
45 this.nextPageNumber = nextPageNumber;
46 }
47
48 public void setPageSize(int pageSize)
49 {
50 this.pageSize = pageSize;
51 }
52
53 public void setPageToShow(int pageToShow)
54 {
55 this.pageToShow = jumpToPage(pageToShow, getPageCount());
56 }
57
58 public void setPreviousPageNumber(int previousPageNumber)
59 {
60 this.previousPageNumber = previousPageNumber;
61 }
62
63 public int getItemCount()
64 {
65 return itemCount;
66 }
67
68 public int getPageCount()
69 {
70 if (pageCount != 0)
71 {
72 return pageCount;
73 }
74 else
75 {
76 return (int) Math.ceil(((double) getItemCount() / (double) getPageSize()));
77 }
78 }
79
80 public void setItemCount(int itemCount)
81 {
82 this.itemCount = itemCount;
83 }
84
85 public void setPageCount(int pageCount)
86 {
87 this.pageCount = pageCount;
88 }
89
90 private static int jumpToPage(int page, int pCount)
91 {
92 if (page < 2)
93 {
94 return 1;
95 }
96 else
97 if (page > pCount)
98 {
99 return pCount;
100 }
101 else
102 {
103 return page;
104 }
105 }
106 }
107 |
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