Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 =-#>NlB$w
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 QR'yZ45n4
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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 L_f u<W
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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 oK;.|ja
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分页支持类: /jJi`'{U
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java代码: d\FBY&C7b
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package com.javaeye.common.util; V!!E)I
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import java.util.List; $N$
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publicclass PaginationSupport { sSVgDQ~q
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publicfinalstaticint PAGESIZE = 30; <uGc=Du
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privateint pageSize = PAGESIZE; _M
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privateList items; w7Do#Cv
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privateint totalCount; ~Yrtz
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privateint[] indexes = newint[0]; aAY=0rCI-
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privateint startIndex = 0; O`2;n.>\
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public PaginationSupport(List items, int N(<4nAE
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totalCount){ w_-v!s2
setPageSize(PAGESIZE); }S{#DgZ@X
setTotalCount(totalCount); m`(5B
setItems(items); fp^!?u
setStartIndex(0); ve|:z
} ${"+bWG2G!
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public PaginationSupport(List items, int xA|72!zk0P
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totalCount, int startIndex){ ^8S'=Bk
setPageSize(PAGESIZE); n(-1vN
setTotalCount(totalCount); UEeD Nl$^u
setItems(items); ?`PG`|2~
setStartIndex(startIndex); CBC0X}_`
} r|rOIAo
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public PaginationSupport(List items, int BU|=`Kb|))
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totalCount, int pageSize, int startIndex){ (<f`},
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setPageSize(pageSize); Y`@:L'j
setTotalCount(totalCount); <u\j4<p
setItems(items); jOs&E^">&B
setStartIndex(startIndex); %X(iAoxbj
} c#eV!fl>&
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publicList getItems(){ %<@."uWF*
return items; I_"1.
} w4YuijhW
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publicvoid setItems(List items){ Z1j3 F
this.items = items; uY]nqb
} hr9[$4'H
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publicint getPageSize(){ uW*)B_c
return pageSize; | /,XdTSy
} e 5hq>K
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publicvoid setPageSize(int pageSize){ tuzw%=Ey
this.pageSize = pageSize; rwb7>]UI"d
} u~Zx9>f
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publicint getTotalCount(){ gzS6{570
return totalCount; ?[#nh@mI
} &6-udZB-
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publicvoid setTotalCount(int totalCount){ ;eYm+e^?.
if(totalCount > 0){ 29R_?HBH
this.totalCount = totalCount; V gLnpPOQ
int count = totalCount / \{W}
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pageSize; ,Y|WSKY*
if(totalCount % pageSize > 0) d{?X:*F
count++; Opc, {,z6
indexes = newint[count]; .t\#>Fe
for(int i = 0; i < count; i++){ }Gmwm|`*
indexes = pageSize * |E/r64T
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} 5;{Q >n
}else{ Ke0j8|
this.totalCount = 0; :77dl/d%
} K.k%Tg[ ~
} G:'hT=8
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publicint[] getIndexes(){ fUy:TCS
return indexes; $n |)M+d
} |X :"AH"S
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publicvoid setIndexes(int[] indexes){ eEvE3=,hg
this.indexes = indexes; V^9c:!aI
} p*F.WxB)4
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publicint getStartIndex(){ L1'R6W~%dN
return startIndex; M`6rI
} 6_`9
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publicvoid setStartIndex(int startIndex){ 9F[k;Uw
if(totalCount <= 0) ^Ec);Z
this.startIndex = 0; bb@@QzR
elseif(startIndex >= totalCount) t=
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this.startIndex = indexes `ceetr=
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[indexes.length - 1]; Bf
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elseif(startIndex < 0) q~QB?+ x&
this.startIndex = 0; s,&tD
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else{ sFhmp
this.startIndex = indexes .UJp#/EHs
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[startIndex / pageSize]; 8t4o}3>
} rVo0H.+N)`
} Tf[o'=2
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publicint getNextIndex(){ vumA W*
int nextIndex = getStartIndex() + "UUzLa_
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pageSize; !% ' dyj
if(nextIndex >= totalCount) 'Z^-(xG,+
return getStartIndex(); -_<rmR[:]
else %kB84dE
return nextIndex; }@R*U0*E
} l_ Eeus
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publicint getPreviousIndex(){ O7&