Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 4;YP\{u
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 _x.2&S89
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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 M`&t=0D
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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 +v
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分页支持类: ~<_#%R!
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java代码: V48_aL
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package com.javaeye.common.util; pb97S^K[
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import java.util.List; WR #XPbk
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publicclass PaginationSupport { A$wC!P|;
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publicfinalstaticint PAGESIZE = 30; %G!!0V!
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privateint pageSize = PAGESIZE; \aJ>?
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privateList items; Vo"G@W)lZ
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privateint totalCount; `<tRfl}qs
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privateint[] indexes = newint[0]; JzEg`Sn^
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privateint startIndex = 0; :P-H8*n""
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public PaginationSupport(List items, int 3V]dl)en%
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totalCount){ uf?;;wg
setPageSize(PAGESIZE); sK%b16#
setTotalCount(totalCount); YIk@{V
setItems(items); r^Ra`:ca
setStartIndex(0); ft/k-64
} \IQG%L{
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public PaginationSupport(List items, int tpSgbGzp
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totalCount, int startIndex){ !PIg,
setPageSize(PAGESIZE); 5 SQ!^1R 9
setTotalCount(totalCount); p.:|Z-W$
setItems(items); RZxh"lIo
setStartIndex(startIndex); #f(a,,Uu'
} "7sv@I_j
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public PaginationSupport(List items, int )Cdw_Yx
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totalCount, int pageSize, int startIndex){ Pjh;;k|V
setPageSize(pageSize); f_ MK4
setTotalCount(totalCount); Ihf>FMl:
setItems(items); ]ttF''lH
setStartIndex(startIndex); IS8 sJ6")
} N@PuC>
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publicList getItems(){ }h1BAKg
return items; {eU>E/SQ
} !Mw/j`*
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publicvoid setItems(List items){ vs8[352
this.items = items; E0qJ.v
} ox SSEs
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publicint getPageSize(){ JX'}+.\
return pageSize; i3XtrP""
} e_!h>=$%8
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publicvoid setPageSize(int pageSize){ FTUfJIVN(
this.pageSize = pageSize; t!wbT79/
} 9L7z<ntn
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publicint getTotalCount(){ 6Zpa[,gm
return totalCount; "6]oi*_8
} G739Ne[gL
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publicvoid setTotalCount(int totalCount){ D*@'%<?
if(totalCount > 0){ #TUm&2 +V
this.totalCount = totalCount; @|\;#$?XW3
int count = totalCount / O4`.ohAZ
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pageSize; ]+G\1SN~
if(totalCount % pageSize > 0) ]|F`;} 7
count++; Eet/l]e#a
indexes = newint[count]; =0&XdxX
for(int i = 0; i < count; i++){ n%h009-5
indexes = pageSize * z~ Zm1tZs
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} "u^2!d
}else{ 8]&Fu3M^
this.totalCount = 0; >CG;df<~
} >#dLT~[\a
} Z3o HOy
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publicint[] getIndexes(){ 1f3g5y'z5
return indexes; k4&adX@Y
} lYe2;bu
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publicvoid setIndexes(int[] indexes){ &pl)E$Y
this.indexes = indexes; `Zp*?
} (M;d*gNr
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publicint getStartIndex(){ ?p6@uM\Q7
return startIndex; 8Ud.t=2
} 3q'nO-KJ
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publicvoid setStartIndex(int startIndex){ FXk*zXn6
if(totalCount <= 0) v+EJ
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this.startIndex = 0; -DGuaUU
elseif(startIndex >= totalCount) gs}&a3d7k
this.startIndex = indexes ?b d&Av
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[indexes.length - 1]; H^*[TX=#[
elseif(startIndex < 0) CWZv/>,%
this.startIndex = 0; Z3zD4-p$_
else{ zKk=R6w
this.startIndex = indexes 6k')12~'
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[startIndex / pageSize]; "pX|?ap
} Lniz>gSc
} @ #J2t#
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publicint getNextIndex(){ 0XE6Hw
int nextIndex = getStartIndex() + JWu0VLo
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pageSize; 3#fg
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if(nextIndex >= totalCount) b7'A5]X
return getStartIndex(); cooicKS7
else *W=1yPP
return nextIndex; Qt"jU+Zoy
} ko!]vHB9`
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publicint getPreviousIndex(){ !j6CvclT
int previousIndex = getStartIndex() - FBi&MZ`
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pageSize; >]Mhkf/=)
if(previousIndex < 0) Ye^#]%m
return0; Yh,,(V6
else aEUEy:.
return previousIndex; R74RJi&
} `)=sQ2P
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} " u]X/
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抽象业务类 <@>icDFEHn
java代码: gBgaVG
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rJ4A9d3:
/** mst;q@
* Created on 2005-7-12 Ux);~P`/o
*/ ZjK'gu8*
package com.javaeye.common.business; u~t% GIg
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