Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 &o%IKB@
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 *WdnP.'Y
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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\^7 Q
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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 ,7-@eZ
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分页支持类: %ub\+~
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java代码: bwN>E+
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package com.javaeye.common.util; Xy/lsaVskX
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import java.util.List; +)YU/41W
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publicclass PaginationSupport { z0|%h?N
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publicfinalstaticint PAGESIZE = 30; KYBoGCS >
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privateint pageSize = PAGESIZE; d h5%
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privateList items; q$IgkL
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privateint totalCount; "g}m xPe
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privateint[] indexes = newint[0]; P5,X,-eG
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privateint startIndex = 0; ]$7dkP
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public PaginationSupport(List items, int bDK%vx!_
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totalCount){ fP 4
setPageSize(PAGESIZE); <E/"v
setTotalCount(totalCount); wP:ab
setItems(items); ,F^Rz.
setStartIndex(0); 'KL!)}B$h
} vu7F>{D
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public PaginationSupport(List items, int Rf*cW&}%
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totalCount, int startIndex){ @ px4[
setPageSize(PAGESIZE); wX?<o
setTotalCount(totalCount); &\K p_ AR
setItems(items); QxUsdF?p
setStartIndex(startIndex); SA3!a.*c
} W<']Q_su
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public PaginationSupport(List items, int leY fF
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totalCount, int pageSize, int startIndex){ U42B(ow
setPageSize(pageSize); ?
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setTotalCount(totalCount); -bJC+Yn
setItems(items); DX|yL!4[
setStartIndex(startIndex); d^-sxl3}
} Q--Hf$D]H
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publicList getItems(){ U`*L` PM
return items; vfnVN@ 5
} jbrx)9Z+%
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publicvoid setItems(List items){ 7Qoy~=E
this.items = items; #21t8
} 3/d`s0O
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publicint getPageSize(){ 'UW]~
return pageSize; g+ZQ6Hz
} *(c><N
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publicvoid setPageSize(int pageSize){ ? |}%A9
this.pageSize = pageSize; @-d0~.S
} IgxZ_2hO
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publicint getTotalCount(){ (bT3
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return totalCount; -h n~-Sy+
} ~]Md*F[4*e
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publicvoid setTotalCount(int totalCount){ A~Uqw8n$\
if(totalCount > 0){ i7 *cpNPO
this.totalCount = totalCount; |~V`Es +j
int count = totalCount / '5V#sq;Z
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pageSize; Qx{[#[Da
if(totalCount % pageSize > 0) (=de#wh2]
count++; w26x)(7
indexes = newint[count]; v8PH(d2{@
for(int i = 0; i < count; i++){ ~4MUac^w
indexes = pageSize * E]opA$JQ
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} (K"8kQLY
}else{ +WGL`RP
this.totalCount = 0; R MrrLT
} ,sn/FT^; q
} b0vbE8wa
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publicint[] getIndexes(){ k-~HUC.A.
return indexes; |izf|*e
} LEM^8G]O
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publicvoid setIndexes(int[] indexes){ ;?-`n4B&
this.indexes = indexes; VOmWRy"L
} JE[+
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publicint getStartIndex(){ ]n/fB|t E
return startIndex; l>H G|ol
} 4t Z. T9d
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publicvoid setStartIndex(int startIndex){ vWM'}(
if(totalCount <= 0) [+j39d.Q
this.startIndex = 0; pbM"tr_A{
elseif(startIndex >= totalCount) s3.,
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this.startIndex = indexes L.]mC !
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[indexes.length - 1]; |ULwUi-r
elseif(startIndex < 0) 1zz.`.R2U
this.startIndex = 0; 1!;}#m7v
else{ #"Wh$x%
this.startIndex = indexes GNv5yWQ@
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[startIndex / pageSize]; l}Fa-9_'
} m4@f&6x
} #9 Fe,
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publicint getNextIndex(){ /p&)bL
int nextIndex = getStartIndex() + @|2}*_3\
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pageSize; GA8cA)]zOD
if(nextIndex >= totalCount) Ul EP;
return getStartIndex(); f%1Dn }6
else rX8EXraO
return nextIndex; j5cc"s
} _`Abz2s
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publicint getPreviousIndex(){ H$
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int previousIndex = getStartIndex() - ,Cj8{s&;
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pageSize; v7l4g&