Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 /8Vh G|Wb
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 +?mZ_sf8w
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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 u=ENf1{ $>
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 zaoZCyJT%
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分页支持类: Lo;T\CN
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java代码: bz}T}nj
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package com.javaeye.common.util; j5$Sm
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import java.util.List; F'SOl*v(s5
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publicclass PaginationSupport { `0.5aa
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publicfinalstaticint PAGESIZE = 30; ky!'.3yoI
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privateint pageSize = PAGESIZE; QV?\?9(
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privateList items; N:&^ql4
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privateint totalCount; rRsLl/d
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privateint[] indexes = newint[0]; t3bN
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privateint startIndex = 0; C/]0jAAE7
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public PaginationSupport(List items, int lHP[WO
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totalCount){ 1h)I&T"kZ
setPageSize(PAGESIZE); ,Zs-<e"
setTotalCount(totalCount); :[AW
setItems(items); C:P, q6
setStartIndex(0); \ u5%+GA-:
} }1(F~6RH
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public PaginationSupport(List items, int D $ `yxc
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totalCount, int startIndex){ ;itz`9T
setPageSize(PAGESIZE); qU=$ 0M
setTotalCount(totalCount); F;MFw2G
setItems(items); M+nz~,![
setStartIndex(startIndex); >TtkG|/U-T
} -y$|EOi?
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public PaginationSupport(List items, int @-u/('vpB
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totalCount, int pageSize, int startIndex){ nwV\[E
setPageSize(pageSize); %X#Wc:b
setTotalCount(totalCount); &4BN9`|:
setItems(items); V1"+4&R^T_
setStartIndex(startIndex); 'f5,%e2#
} ]2Lwd@
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publicList getItems(){ vT[%*)`
return items; \UN7lDH
} c()F%e:n
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publicvoid setItems(List items){ 0!!pNK%(
this.items = items; vsES`
} WU}JArX9
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publicint getPageSize(){ mtJI#P
return pageSize; 5GpRN
} ]A!Gr(FHQ
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publicvoid setPageSize(int pageSize){ ~W`upx)j
this.pageSize = pageSize; _=,[5"
} 4Jo:^JV
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publicint getTotalCount(){ K4l,YR;r
return totalCount; S
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} 4$vya+mAk5
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publicvoid setTotalCount(int totalCount){ qW7S<ouh
if(totalCount > 0){ @gs
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this.totalCount = totalCount; rEZa%)XJ
int count = totalCount / HM--`RJ
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pageSize; f3*u_LO
if(totalCount % pageSize > 0) *S{%+1F
count++; RQ|!?\a=
indexes = newint[count]; [Ma&=2h
for(int i = 0; i < count; i++){ |QxDjL<&t4
indexes = pageSize * [l'~>
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} QbS w<V
}else{ S{J$[!F
this.totalCount = 0; %.<w8ag
} aA0aW=R
} VJJw"4DJ
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publicint[] getIndexes(){ hv7!x=?8
return indexes; cH"M8gP#
} 2<Ub[R
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publicvoid setIndexes(int[] indexes){ SAXjB;VH6
this.indexes = indexes; 6P+8{?V&
} ,uuQj]Dac+
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publicint getStartIndex(){ 4JP01lq'\
return startIndex; D<Ads
} ^9"|tWf6O
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publicvoid setStartIndex(int startIndex){ Z.VVY\
if(totalCount <= 0) J;'?(xO3\
this.startIndex = 0;
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elseif(startIndex >= totalCount) %VSST?aUvX
this.startIndex = indexes !]5F2~"v
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[indexes.length - 1]; &