Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 bicL%I2h
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 |plo65
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据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 6DW|O<k^j
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 9m4rNvb
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分页支持类: pNFIO
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java代码: #>B1$(@
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package com.javaeye.common.util; j//wh1
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import java.util.List; :q<%wLs
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publicclass PaginationSupport { ^)l@7XxD
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publicfinalstaticint PAGESIZE = 30; qXGLv4c`Q
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privateint pageSize = PAGESIZE; H>iZVE
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privateList items; [frD
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privateint totalCount; 2z# @:Q
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privateint[] indexes = newint[0]; M&c1iK\E8
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privateint startIndex = 0; KocXSh U
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public PaginationSupport(List items, int G5J ZB7C
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totalCount){ }zxh:"#K
setPageSize(PAGESIZE); 5)NBM7h
setTotalCount(totalCount); "mDrJTWa
setItems(items); t~K!["g
setStartIndex(0); D D;+& fe
} f+Li'?
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public PaginationSupport(List items, int g
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totalCount, int startIndex){ x>"JWD
setPageSize(PAGESIZE); %P,^}h7
setTotalCount(totalCount); 4$GRCq5N;
setItems(items); A;a(n\Sy
setStartIndex(startIndex); V9+"CB^
} Sc3M#qm_
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public PaginationSupport(List items, int ,<r 3Z$G
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totalCount, int pageSize, int startIndex){ 6x,=SW@4
setPageSize(pageSize); >1pH 91c'
setTotalCount(totalCount); aq/Y}s?
setItems(items); @<yc .>
setStartIndex(startIndex); :wmf{c
} 6ilC#yyp
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publicList getItems(){ Mv`L F
return items; L9?/ -@M
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publicvoid setItems(List items){ ":^
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this.items = items; tF g'RV{
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publicint getPageSize(){ AaC1||?R
return pageSize; NV(4wlh)y
} eEGcio}_I9
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publicvoid setPageSize(int pageSize){ IBNQmVRrI
this.pageSize = pageSize; $RNUr
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publicint getTotalCount(){ jP.b oj_u*
return totalCount; @&xaaqQ-
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publicvoid setTotalCount(int totalCount){ o``>sBZOq
if(totalCount > 0){ /A))"D
this.totalCount = totalCount; rjQhU%zv
int count = totalCount / ;(0$~O$3u
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pageSize; bKMR7&e.Ep
if(totalCount % pageSize > 0) ~TFYlV
count++; bd
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indexes = newint[count]; ?&<o_/`-H5
for(int i = 0; i < count; i++){ c[RLYu
indexes = pageSize * a(DZGQ-as
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this.totalCount = 0; aGk%I
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publicint[] getIndexes(){ S O:V|Tfj
return indexes; VMye5 P
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publicvoid setIndexes(int[] indexes){ j5h
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this.indexes = indexes; MAD}Tv\S7
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publicint getStartIndex(){ L8]{B
return startIndex; 1H,tP|s
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publicvoid setStartIndex(int startIndex){ }wOpPN[4
if(totalCount <= 0) :{WrS
this.startIndex = 0; %::deV7
elseif(startIndex >= totalCount) dbuJ~?D,
this.startIndex = indexes *xo;pe)9
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[indexes.length - 1]; hN_f h J
elseif(startIndex < 0) Am4^v?q
this.startIndex = 0; ,WB_C\.#XN
else{ Z-h7
this.startIndex = indexes +5t
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[startIndex / pageSize]; 1^f.5@tV
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} %X"m/4c8}
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publicint getNextIndex(){ v]{uxlh
int nextIndex = getStartIndex() + o%WjJ~!zL
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pageSize; yB4H3Q )
if(nextIndex >= totalCount) p;u 1{
return getStartIndex(); ./&zO{|0]
else +fd@K
return nextIndex; M9s43XL(&
} I' ! r
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publicint getPreviousIndex(){ <{cNgKd9
int previousIndex = getStartIndex() - JYg% ~tW'
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pageSize; o`\.I&Ij
if(previousIndex < 0) w &|R5Q
return0; "o{)X@YN]
else I!@s6tG
return previousIndex; "\/^/vn?
} &`yOIX-H_
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抽象业务类 6mu<&m@
java代码: )W1(tEq59
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/**
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* Created on 2005-7-12 Ki/'Ic1
*/ 2sqm7th
package com.javaeye.common.business; &