Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 _(8HK
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 ?=uw0~O[
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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 5Y8/ZW~D0
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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 5PQs1B
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分页支持类: L.xzI-I@D
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java代码: &n:F])`2
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package com.javaeye.common.util; -'|pt,)
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import java.util.List; 0F<O \
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publicclass PaginationSupport { ),-4\!7
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publicfinalstaticint PAGESIZE = 30; Ir*,fyl
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privateint pageSize = PAGESIZE; @:. 6'ji,`
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privateList items; n8M/Y}mH
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privateint totalCount; imtW[ y+4
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privateint[] indexes = newint[0]; zSYWNmj&
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privateint startIndex = 0; PaEsz$mgy
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public PaginationSupport(List items, int {=,?]Z+
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totalCount){ 15r<n
setPageSize(PAGESIZE); `
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setTotalCount(totalCount); Iy](?b
setItems(items); E$FXs~a
setStartIndex(0); `oh'rm3'8
} -NVk>ENL4
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public PaginationSupport(List items, int 2f]9I1{
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totalCount, int startIndex){ O329Bkg
setPageSize(PAGESIZE); 4.3Bz1p
setTotalCount(totalCount); 'sm+3d
setItems(items); VPf*>ph=
setStartIndex(startIndex); (o\:rLZu
} @Ns^?#u~
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public PaginationSupport(List items, int xnu|?;.}!
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totalCount, int pageSize, int startIndex){ cmu5KeH
setPageSize(pageSize); Fa9]!bW
setTotalCount(totalCount); UJ)\E
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setItems(items); t9PS5O ;
setStartIndex(startIndex); ?#\?&uFJ}
} hSD)|
{
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publicList getItems(){ fj 19U9R
return items; L`+\M+
} E<a~
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publicvoid setItems(List items){ =? x A*_^
this.items = items; B{|P}fN5}
}
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publicint getPageSize(){ fZXJPy;n
return pageSize; 5-w6(uu
} xGqe )M>8?
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publicvoid setPageSize(int pageSize){ q01zN:|-1
this.pageSize = pageSize; P!m~tu}B
} A"C%.InZ
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publicint getTotalCount(){ 1`m ~c
return totalCount; yaA9*k
} W?'!}g(~
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publicvoid setTotalCount(int totalCount){ $;+B)#
if(totalCount > 0){ q[b-vTzI
this.totalCount = totalCount; slHlfWHq
int count = totalCount / 5\f*xY
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pageSize; P,~a'_w:|D
if(totalCount % pageSize > 0) qEf)TW(
count++; PF!Q2t5c3
indexes = newint[count]; f b_tda",}
for(int i = 0; i < count; i++){ eF}Q8]da
indexes = pageSize * X<(h)&E
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} )u]<8
}else{ Tc\^=e^N?
this.totalCount = 0; S_6`.@B}
} 7esG$sVj(
} tZU"Ud
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publicint[] getIndexes(){ "`,PLC
return indexes; E] t:_v
} J(M0t~RZ
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publicvoid setIndexes(int[] indexes){ T[<llh'+
this.indexes = indexes; bR*T}w$<
} $z{HNY*2
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publicint getStartIndex(){ !V@Y \M
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return startIndex; Gr?"okaA
} 0} liK
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publicvoid setStartIndex(int startIndex){ yi# Nrc5B
if(totalCount <= 0) `-s+ zG
this.startIndex = 0; R`ZU'|
elseif(startIndex >= totalCount) < W/-[ M
this.startIndex = indexes =t&B8+6
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[indexes.length - 1]; n1uJQt
elseif(startIndex < 0) v2EM| Q xp
this.startIndex = 0; w>H!H6Q
else{ \fU{$
this.startIndex = indexes x7Ly,
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[startIndex / pageSize]; A>OL5TCl
} xJ>hN@5}i
} c2?(.UV
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publicint getNextIndex(){ xYM/{[
int nextIndex = getStartIndex() + ^lRXc.c z
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pageSize; fPK|Nw]b
if(nextIndex >= totalCount) &!/L^Y*+
return getStartIndex(); Ax0u \(p<^
else qg:1
return nextIndex; N_q7ip%z
} pR 1 v^m|
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publicint getPreviousIndex(){ [JMz~~F
int previousIndex = getStartIndex() - }%$9nq3
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pageSize; M29[\@zL
if(previousIndex < 0) 1.yw\ZC\
return0; _h@7>+vl~
else &sJpn*W
return previousIndex; pVt-7AgW
} 9S&6u1
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} '$1-A%e$1
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抽象业务类 cy^6g?ew
java代码: ;c:vzF~Q
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/** faD(,H
* Created on 2005-7-12 uA:;OM}
*/ N<