Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 5s /fBS
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 ZcP/rT3{^
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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 *(w#*,lv
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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 `~+1i5-}
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分页支持类: ;7
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java代码: JX $vz*KF
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package com.javaeye.common.util; ]b&"](A
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import java.util.List; v}>5!*
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publicclass PaginationSupport { [VL+X^
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publicfinalstaticint PAGESIZE = 30; u A=x~-I
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privateint pageSize = PAGESIZE; K+F]a]kld
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privateList items; :JI&ngWK
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privateint totalCount; W["c3c
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privateint[] indexes = newint[0]; UpoTXAD}k
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privateint startIndex = 0; C8oAl3d+h
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public PaginationSupport(List items, int B=,j$uH
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totalCount){ |s}7<A
setPageSize(PAGESIZE); `%5~>vPS
setTotalCount(totalCount); /W @k:
setItems(items); o4l=oY:'
setStartIndex(0); @ /yQ4Gr
} BQ
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public PaginationSupport(List items, int e5HHsR6
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totalCount, int startIndex){ {i!@C(M3
setPageSize(PAGESIZE); %aHQIoxg
setTotalCount(totalCount); 9NPOdt:@
setItems(items); ^5,B6
setStartIndex(startIndex); VW%eB
} &1(PS)s
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public PaginationSupport(List items, int ndB [f
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totalCount, int pageSize, int startIndex){ C3#mmiL-
setPageSize(pageSize); kH9fK80
setTotalCount(totalCount); h p<NVST
setItems(items); K[G=J
setStartIndex(startIndex); )RZ:\:c
} .~L^h/)Gjy
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publicList getItems(){ 08pG)_L
return items; ?A\[EI^
} ~a
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publicvoid setItems(List items){ ?yq $
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this.items = items; YS|Ve*t(L=
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publicint getPageSize(){ r'/H3
return pageSize; x]X!nx6G
} {r.yoI4e
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publicvoid setPageSize(int pageSize){ "^3pP(8;~
this.pageSize = pageSize; Pm}
} A"PmoV?lAm
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publicint getTotalCount(){ q n2X._`
return totalCount; ^CtA@4
} `~S; UG
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publicvoid setTotalCount(int totalCount){ gb,X"ODq
if(totalCount > 0){ g5,Bj
this.totalCount = totalCount; __Tg1A
int count = totalCount / 3u g-cq
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pageSize; a{deN9Qn
if(totalCount % pageSize > 0) =4H"&Eu{
count++; Kz`g Q |S
indexes = newint[count]; { :~D
for(int i = 0; i < count; i++){ #383W)n
indexes = pageSize * IBY(wx[5S
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} B[8`l} t
}else{ kd3vlp
this.totalCount = 0; P!*G"^0<
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} C2/B1ba
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publicint[] getIndexes(){ PE7D)!d
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return indexes; fZ6"DJZ
} Sph:OX8
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publicvoid setIndexes(int[] indexes){ c&rS7%
this.indexes = indexes; VBe.&b8
} &|8R4l C|
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publicint getStartIndex(){ c|,6(4j>$
return startIndex; rgOc+[X
} [fjP.kw;J
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publicvoid setStartIndex(int startIndex){ Tz"Xm/Gy
if(totalCount <= 0) x_K8Gr#Z 0
this.startIndex = 0; '9R.$,N
elseif(startIndex >= totalCount) +uD4$Wt_F
this.startIndex = indexes p+pBk$4
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[indexes.length - 1]; zQNkjQ{mx
elseif(startIndex < 0) F#S)))#
this.startIndex = 0; >#[u"CB
else{ c@xQ2&i
this.startIndex = indexes 0zCmU)ng
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[startIndex / pageSize]; 6k@(7Mw8A
} e71dNL'$
} bW e_<'N
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publicint getNextIndex(){ lz-t+LD@ST
int nextIndex = getStartIndex() + &0='z
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pageSize; HLYTt)f}
if(nextIndex >= totalCount) 3tZC&!x?
return getStartIndex(); \ O#6H5F
else #F~^m
return nextIndex; D') m8:>
} 4*vV9*'!
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publicint getPreviousIndex(){ \j$q';9p
int previousIndex = getStartIndex() - F}C.F
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pageSize; >2%*(nL
if(previousIndex < 0) jZ5 mpYUO
return0; K\2UwX
else ;:/<