Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 thl{IU
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 <s)+V6\E
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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 qun#z$
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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 l7
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分页支持类: b~y1'|}g
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java代码: `oXUVr
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package com.javaeye.common.util; t8E'd:pE
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import java.util.List; Etg'"d@[
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publicclass PaginationSupport { M)!8`]
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publicfinalstaticint PAGESIZE = 30; JyvXNV,
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privateint pageSize = PAGESIZE; p&_Kb\}U
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privateList items; F!tn|!~
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privateint totalCount; 0<Vw0%!
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privateint[] indexes = newint[0]; =X2 Ieb
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privateint startIndex = 0; *ukE"Aj
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public PaginationSupport(List items, int ]}<wS]1
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totalCount){ "AS;\-Jk
setPageSize(PAGESIZE); GX4# IRq
setTotalCount(totalCount); S/"-x{Gc2v
setItems(items); ,3qi]fFLMe
setStartIndex(0); 7ZI!$J|
} +D&W!m
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public PaginationSupport(List items, int K)`,|q* \
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totalCount, int startIndex){ A?06fo,
setPageSize(PAGESIZE); =.#*MYB.l
setTotalCount(totalCount); 9(dbou
setItems(items); .-k\Q}D
setStartIndex(startIndex); Ps4spy0Fp
} J'sVT{@GS
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public PaginationSupport(List items, int ]HgAI$aA,
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totalCount, int pageSize, int startIndex){ D[x0sly
setPageSize(pageSize); l
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setTotalCount(totalCount); (@vu/yN
setItems(items); SuMK=^>%
setStartIndex(startIndex); I@08F
} rg]eSP3W
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publicList getItems(){ qhRs5QXL
return items; T_lexX[\
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publicvoid setItems(List items){ S^]i
this.items = items; H5j~<@STC
} Vf`n>
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publicint getPageSize(){ U~azI(1"W
return pageSize; M\BLuD
} hR
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publicvoid setPageSize(int pageSize){ P ^R224R
this.pageSize = pageSize; oC#@9>+@+"
} 9s5gi+l_O
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publicint getTotalCount(){ 8p }E
return totalCount; (y7U}Sb'
} B9`nV.a
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publicvoid setTotalCount(int totalCount){ mWZoo/xtT
if(totalCount > 0){ Fyrr,#
this.totalCount = totalCount; V
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int count = totalCount / _fz-fG 1
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pageSize; KGS=(z
if(totalCount % pageSize > 0) r3<yG"J86
count++; *IJctYJaX
indexes = newint[count]; ):E4qlB
for(int i = 0; i < count; i++){ #>g]CRN
indexes = pageSize * Dtl381F J
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} ,kfUlv=
}else{ |tC!`.^\
this.totalCount = 0; m;)[gF
} $/ew'h9q
} qP-*
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publicint[] getIndexes(){ K]yCt~A$
return indexes; W!
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} H.qp~-n
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publicvoid setIndexes(int[] indexes){ ]e@'9`G-'
this.indexes = indexes; P(8zJk6h),
} (0g@Z`r
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publicint getStartIndex(){ \74+ cN
return startIndex; ";AM3
} PXz,[<ET?#
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publicvoid setStartIndex(int startIndex){ yxh8sAZ
if(totalCount <= 0) Z.Z+cFi
this.startIndex = 0; R_eKKi@VH
elseif(startIndex >= totalCount) l 3bo
this.startIndex = indexes BFc=GiPnQ
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[indexes.length - 1]; %|bqL3)a_
elseif(startIndex < 0) U@x5cw:
this.startIndex = 0; ^\Gaf5{
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this.startIndex = indexes ,Ua`BWF
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[startIndex / pageSize]; Ufd{.o[{-
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} D6@c&
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publicint getNextIndex(){ %b<cJ]F
int nextIndex = getStartIndex() + ?NoG.
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pageSize; E+k#1c|v$
if(nextIndex >= totalCount) i9+(gX(t
return getStartIndex(); #G%[4.$n.
else _"%mLH=!8
return nextIndex; TC;2K,.#k
} ,rx?Ig}kz
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