Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 GwoN=
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 A<VNttgG
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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<D p2`
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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
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分页支持类: O+o1R24JI
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java代码: ?x(]U+
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package com.javaeye.common.util; crt
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import java.util.List; #;32(II
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publicclass PaginationSupport {
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publicfinalstaticint PAGESIZE = 30; <QyJJQM
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privateint pageSize = PAGESIZE; #q"^6C
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privateList items; 2%'iTXF
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privateint totalCount; !kl9X-IiI
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privateint[] indexes = newint[0]; p<2A4="&
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privateint startIndex = 0; EVW{!\8[
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public PaginationSupport(List items, int w}<CH3cx
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totalCount){ e.<$G'
setPageSize(PAGESIZE); n'yC- ;
setTotalCount(totalCount); SJRiMR_F~
setItems(items); gm63dE>
setStartIndex(0); Q}a 1P8?S
} 5m`@ 4%)zp
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public PaginationSupport(List items, int L)5YX-?
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totalCount, int startIndex){ ?X1vU0c
setPageSize(PAGESIZE); ztNm,1pnQ
setTotalCount(totalCount); DA_[pR
setItems(items); %8 )GuxG*
setStartIndex(startIndex); tTT./-*0
} ZLBv\VQ
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public PaginationSupport(List items, int Ub%al
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totalCount, int pageSize, int startIndex){ p#9.lFSX
setPageSize(pageSize); <m"yPi3TY
setTotalCount(totalCount); MZGN,[~)6
setItems(items); {CM%QMM
setStartIndex(startIndex); c5?;^a[
} p4
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publicList getItems(){ 5TqT`XTzm
return items; +)C?v&N
} D6trqB
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publicvoid setItems(List items){ M+X>!Os
this.items = items; `c^ _5:euX
} P#/k5]g
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publicint getPageSize(){ {%$eq{~m
return pageSize; NrE&w H:
} $6~D 2K
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publicvoid setPageSize(int pageSize){ bJJB*$jW=
this.pageSize = pageSize; }LDH/#
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} [-X=lJ:+h
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publicint getTotalCount(){ TbqED\5@9w
return totalCount; bDa(@QJ-
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publicvoid setTotalCount(int totalCount){
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if(totalCount > 0){ 3%?01$k
this.totalCount = totalCount; 'k=GSb
int count = totalCount / bq/*99``
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pageSize; 7]t$t3I`
if(totalCount % pageSize > 0) q<L>r?T[
count++; HtUFl
indexes = newint[count]; -hav/7g
for(int i = 0; i < count; i++){ Y_3{\g|x
indexes = pageSize * <KF|QE
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} Om%{fq&
}else{ LXr
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this.totalCount = 0; jTbJL
} _RT3Fk
} *ip2|2G$
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publicint[] getIndexes(){ 5Z]zul@+*
return indexes; :- B,Q3d
} 0oI3Fb;E
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publicvoid setIndexes(int[] indexes){ TAbd[:2{F
this.indexes = indexes; ]sBSLEie
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} v\>!J?
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publicint getStartIndex(){
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return startIndex; hnM?wn
} XK[cbVu
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publicvoid setStartIndex(int startIndex){ 99%oY
if(totalCount <= 0) } 5~|h%
this.startIndex = 0; nUi
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elseif(startIndex >= totalCount) 5[.Dlpa'7
this.startIndex = indexes h}&WBN
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[indexes.length - 1]; ,bh OIuep3
elseif(startIndex < 0) 8W$uw~|dw
this.startIndex = 0; vT)(#0>z
else{ R=g~od[N_
this.startIndex = indexes 7iCH$}
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[startIndex / pageSize]; Y4cIYUSc
} USLG G}R
} okfGd=
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publicint getNextIndex(){ >U\,(VB
int nextIndex = getStartIndex() + S'>(4a
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pageSize; D_oGhQYY4
if(nextIndex >= totalCount) ]J;pUH+u
return getStartIndex(); 2GNtO!B.
else H!Gsu$C
return nextIndex; xc[LbaBG
} pPt7M'uL"
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publicint getPreviousIndex(){ g4,>cqRkq
int previousIndex = getStartIndex() - OfC0lb:c
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