Mercurial > hg > ismi-richfaces

comparison src/main/java/de/mpiwg/itgroup/ismi/util/guiComponents/DataPaginator.java @ 1:2e911857a759

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
(none)
author jurzua
date Wed, 29 Oct 2014 14:00:28 +0000
parents
children aa564b1b5e1f
comparison
equal deleted inserted replaced
0:74df02964906 1:2e911857a759
1 package de.mpiwg.itgroup.ismi.util.guiComponents;
2
3 import java.text.MessageFormat;
4
5 public class DataPaginator {
6 /* This should be parameters or properties stored somewhere */
7 private int itemsPerPage = 10;
8 private int rewindFastForwardBy = 10;
9
10 private int currentPage;
11 private int numberOfPages;
12
13 private String recordStatus;
14
15 public void first(){
16 this.currentPage = 0;
17 }
18
19 public void last(){
20 this.currentPage = this.numberOfPages -1;
21 }
22
23 public void fastRewind () {
24 this.rewind(this.rewindFastForwardBy);
25 }
26
27 private void rewind (int aRewindFastForwardBy) {
28 int newPageNumber = currentPage - aRewindFastForwardBy;
29 if (newPageNumber < 0) {
30 currentPage = 0;
31 } else {
32 currentPage = newPageNumber;
33 }
34 }
35
36 public void goToPage(int newPageNumber){
37 if (newPageNumber > this.numberOfPages -1) {
38 currentPage = this.numberOfPages -1;
39 } else if(newPageNumber < 0 ){
40 currentPage = 0;
41 }else{
42 currentPage = newPageNumber;
43 }
44
45 }
46
47 private void forward (int aRewindFastForwardBy) {
48 int newPageNumber = currentPage + aRewindFastForwardBy;
49 if (newPageNumber > this.numberOfPages - 1) {
50 currentPage = this.numberOfPages -1;
51 } else {
52 currentPage = newPageNumber;
53 }
54 }
55
56 public void previous () {
57 this.rewind(1);
58 }
59
60 public void next () {
61 this.forward(1);
62 }
63
64 public void fastForward () {
65 this.forward(this.rewindFastForwardBy);
66 }
67
68 public void initCount() {
69 if (currentPage > numberOfPages) {
70 currentPage=numberOfPages;
71 }
72 }
73
74 public int getNumberOfPages() {
75 return numberOfPages;
76 }
77
78 public void setNumberOfPages(int numberOfPages) {
79 this.numberOfPages = numberOfPages;
80 }
81
82 public void resetNumberOfPages(int itemsTotal){
83 int numberOfPages = (itemsTotal
84 % this.getItemsPerPage() == 0) ?
85 itemsTotal
86 / this.getItemsPerPage() :
87 (itemsTotal
88 / this.getItemsPerPage()) + 1;
89 this.setNumberOfPages(numberOfPages);
90 }
91
92 public int getCurrentPage() {
93 return currentPage;
94 }
95
96 public void setCurrentPage(int currentPage) {
97 this.currentPage = currentPage;
98 }
99
100 public String getRecordStatus () {
101 this.recordStatus = MessageFormat.format("{0} of {1}",
102 new Object []{
103 Integer.valueOf(currentPage + 1),
104 Integer.valueOf(numberOfPages)
105 });
106 return recordStatus;
107 }
108
109 public void setRecordStatus(String recordStatus) {
110 this.recordStatus = recordStatus;
111 }
112
113 public int getItemsPerPage() {
114 return itemsPerPage;
115 }
116
117 public void setItemsPerPage(int itemsPerPage) {
118 this.itemsPerPage = itemsPerPage;
119 }
120
121 public int getRewindFastForwardBy() {
122 return rewindFastForwardBy;
123 }
124
125 public void setRewindFastForwardBy(int rewindFastForwardBy) {
126 this.rewindFastForwardBy = rewindFastForwardBy;
127 }
128 }