Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 8!T6N2O6d
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 j1yW{
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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 ~G;lEp
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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 *_aeK~du.
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分页支持类: YXdd=F
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java代码: BJ]4j-^o
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package com.javaeye.common.util; nVp*u9]
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import java.util.List; ir-= @@
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publicclass PaginationSupport { SS/9fT"[
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publicfinalstaticint PAGESIZE = 30; 6^Q Bol
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privateint pageSize = PAGESIZE; vuOixAkw
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privateList items; "K7{y4
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privateint totalCount; ) sh+cfTCb
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privateint[] indexes = newint[0]; z&3in
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privateint startIndex = 0; \UD:9g"
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public PaginationSupport(List items, int [xTu29X.
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totalCount){ |#6B<'e'
setPageSize(PAGESIZE); >A+0"5+_p
setTotalCount(totalCount); U|Du9_0
setItems(items); tY1M7B^~
setStartIndex(0); IC1oW)
} Gs2|#*6
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public PaginationSupport(List items, int s Y^#I
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totalCount, int startIndex){ 6eUM[C.
setPageSize(PAGESIZE); {GTOHJ2
setTotalCount(totalCount); B``)
setItems(items); :$>Co\D
setStartIndex(startIndex); .??[qBOTE
} KKPQ[3g
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public PaginationSupport(List items, int J`&*r;""V
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totalCount, int pageSize, int startIndex){ (zVT{!z
setPageSize(pageSize); v*Fr#I0U
setTotalCount(totalCount); * mzJ)4A
setItems(items); v(=?ge YLo
setStartIndex(startIndex); zNu>25/)(
} ?l6NQ;z
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publicList getItems(){ ^F>C|FJ2
return items; yc#0c[ZQu
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publicvoid setItems(List items){ &vDK6w,
this.items = items; ?"d25LyN
} WSt&?+Y
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publicint getPageSize(){ u~WE}VC
return pageSize; Ik4FVL8~
} hzT,0<nw
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publicvoid setPageSize(int pageSize){ ku@sQn
this.pageSize = pageSize; doIcO,Q
} oj|\NlR
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publicint getTotalCount(){ z
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return totalCount; Au-_6dT
} @Kx@ 2#~b
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publicvoid setTotalCount(int totalCount){ 8f\sG:$
if(totalCount > 0){ +A
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this.totalCount = totalCount; @w%{yzr%
int count = totalCount / b,Z\{M:f;F
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pageSize; lK}W%hzU
if(totalCount % pageSize > 0) Z{9
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count++; h!vq~g
indexes = newint[count]; Ewfzjc
for(int i = 0; i < count; i++){ j9V*f
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indexes = pageSize * kw%vO6"q(
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} F5hOKUjv
}else{ NrHh(:
this.totalCount = 0; H pZD^h?L
} MJ=(rp=YU9
} ]M:=\h,t>
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publicint[] getIndexes(){ kp{q5J6/
return indexes; )A@i2I
} j>OuNeo@4
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publicvoid setIndexes(int[] indexes){ -f{NVX\<0
this.indexes = indexes; ~ AU!Gm.
} }i)^?@
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publicint getStartIndex(){ h#Z5vH
return startIndex; >~nc7j
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publicvoid setStartIndex(int startIndex){ ckglDhC
if(totalCount <= 0) )L,.KO
this.startIndex = 0; 5._=m"Pl
elseif(startIndex >= totalCount) Za*QX|
this.startIndex = indexes dbmty|d
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[indexes.length - 1]; ^lt;K{
elseif(startIndex < 0) A6 D@#(D
this.startIndex = 0; f vAF0
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else{ -0 e&>H%
this.startIndex = indexes gbC!>LV
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[startIndex / pageSize]; D^G5$hi
} l6[0i
} b?=>)':f
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publicint getNextIndex(){ g[#4`Q<.
int nextIndex = getStartIndex() + Zx1 I&K\Cd
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pageSize; gz,x6mnQ
if(nextIndex >= totalCount) ~> xVhd
return getStartIndex(); =:4vRq
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else jkN-(v(T
return nextIndex; +Kw&XRAd
} AUan^Om
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publicint getPreviousIndex(){ bG'"l qn
int previousIndex = getStartIndex() - 5bfd8C
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pageSize; wva| TZ
if(previousIndex < 0) 5ree3 quh
return0; T!iRg=<bz
else snl$v
return previousIndex; voD0u
} >h[ {_+
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} SEL7,8 Hm
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抽象业务类 1]yjhw9g
java代码: K4H U9!
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/** zRz7*o&l
* Created on 2005-7-12 .3tyNjsn\
*/ `H^?jX>7
package com.javaeye.common.business; -kv'C6gB
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import java.io.Serializable; Xv5|j/<