Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 NfDg=[FN[
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 O6lj^
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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 mqw&SxU9
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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 $WrDZU 2z
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分页支持类: 97'*Xq
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java代码: y`7BR?l
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package com.javaeye.common.util; I>b!4?h
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import java.util.List; #R'm|En'
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publicclass PaginationSupport { G\|VTqu
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publicfinalstaticint PAGESIZE = 30; g' H!%<
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privateint pageSize = PAGESIZE; OUS@)Tyh
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privateList items; kImS'i{A
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privateint totalCount; u ; f~
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privateint[] indexes = newint[0]; SA)}---"
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privateint startIndex = 0; u])N^AY"sj
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public PaginationSupport(List items, int /i"L@t)\t
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totalCount){ _;L9&>!p6
setPageSize(PAGESIZE); i|)<#Ywl
setTotalCount(totalCount); 1^b-J0
setItems(items); _Cj u C`7
setStartIndex(0); AQQeLdTq
} s(r(! FZ
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public PaginationSupport(List items, int o!gl
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totalCount, int startIndex){ m9a(f >C
setPageSize(PAGESIZE); Ca0~K42~
setTotalCount(totalCount); ZlUd^6|:3
setItems(items); A"2k,{d
setStartIndex(startIndex); OB>Pk_eQK
} gj0gs
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public PaginationSupport(List items, int R'u M7,7
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totalCount, int pageSize, int startIndex){ 'Oyz/P(p
setPageSize(pageSize); E#Smi507p
setTotalCount(totalCount); 0x4p!5
setItems(items); $*\[I{Zau}
setStartIndex(startIndex); jyb/aov
} )F8G q,
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publicList getItems(){ 4S`2")V
return items; Fi14_{
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publicvoid setItems(List items){ F%UyFUz
this.items = items; N~=p+Ow[H
} ts<5%{M(
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publicint getPageSize(){ c0sU1:e0
return pageSize; C1:efa<wV
} `$ql>k-6C
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publicvoid setPageSize(int pageSize){ 4. 7m*
this.pageSize = pageSize; _{_ybXG|
} RLu y;z
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publicint getTotalCount(){ pd?3_yU
return totalCount; BA4qQCS;5
} }S\ \"SBC
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publicvoid setTotalCount(int totalCount){ sk5h_[tK
if(totalCount > 0){ {0 IEizQ|i
this.totalCount = totalCount; h# c.HtVE
int count = totalCount / %AwR 4"M
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pageSize; _VLc1svv
if(totalCount % pageSize > 0) )$p<BL U
count++; MDZ,a0?4t
indexes = newint[count]; D1}Bn2BM$
for(int i = 0; i < count; i++){ Rq-BsMX!A
indexes = pageSize * 9%^q?S/Rv
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} :G=N|3
}else{ 0,a\vs%@X
this.totalCount = 0; 9D#"Ey
} V^Z"FwWk
} 6 9_etv
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publicint[] getIndexes(){ -r )Q| U
return indexes; fjVGps$j
} 2R66 WKQ
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publicvoid setIndexes(int[] indexes){ 4E/Q+^?
this.indexes = indexes; aKkL0D
} 2I(b ad
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publicint getStartIndex(){ Z7a~M3VnZ
return startIndex; 3WZdP[o!
} ZV=O oLt,
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publicvoid setStartIndex(int startIndex){ biLx-F c
if(totalCount <= 0) Y3KKskhLx
this.startIndex = 0; .aTu]i3l_
elseif(startIndex >= totalCount) \Ld/'Z;w
this.startIndex = indexes CT(VV6I\
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[indexes.length - 1]; FRqJ#yd]
elseif(startIndex < 0) do@`(f3g
this.startIndex = 0; fG_.&!P
else{ MHar9)$}
this.startIndex = indexes cBs:7Pnp%
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[startIndex / pageSize]; 1W*%}!&Gm
} VSns_>o
} Y%eFXYk.
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publicint getNextIndex(){ /R\]tl#2j
int nextIndex = getStartIndex() + QT)D|]bH
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pageSize; b{q-o <