Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 5+t$4N+P
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 sYB2{w
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据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 z~ua#(z1S
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 PgsG*5WQ
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分页支持类: |3>%(4
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java代码: 4jzjrG
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package com.javaeye.common.util; w17CZa
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import java.util.List; *hh9
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publicclass PaginationSupport { vVSf'w
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publicfinalstaticint PAGESIZE = 30; u5Mg
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privateint pageSize = PAGESIZE; T/:6Z
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privateList items; T=CJUla
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privateint totalCount; ?U
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privateint[] indexes = newint[0]; AuY*x;~
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privateint startIndex = 0; EXR6Vb,
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public PaginationSupport(List items, int Hk$do`H-=Y
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totalCount){ x+v&3YF
setPageSize(PAGESIZE); [kMWsiZ
setTotalCount(totalCount); ^?|d< J:{
setItems(items); U|8?$/*\
setStartIndex(0); |o@U
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} #k,.xMJ~
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public PaginationSupport(List items, int z'\BZ5riX<
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totalCount, int startIndex){ Qx&7Ceu"
setPageSize(PAGESIZE); mZ.gS1Dq
setTotalCount(totalCount); $"va8,
setItems(items); qRq4PQ@
setStartIndex(startIndex); En4!-pWHQ
} O\h%ZLjfO
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public PaginationSupport(List items, int l< H nP R/
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totalCount, int pageSize, int startIndex){ GGUwS
setPageSize(pageSize); )S}.QrG
setTotalCount(totalCount); Q]OR0-6<.
setItems(items); WkV0,_(P
setStartIndex(startIndex); 6XnUs1O
} o\fPZ`p-m~
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publicList getItems(){ n*Hx"2XF
return items; ! 6R|
} k#Qjm9V
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publicvoid setItems(List items){ Nw%^Gs<~
this.items = items; @\+UTkl8
} =%|f-x
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publicint getPageSize(){ U*XdFH}vV
return pageSize; |W*2L]&
} AdbTI#eY
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publicvoid setPageSize(int pageSize){ iH>b"H>
this.pageSize = pageSize; UJjtDV3@_g
} JURg=r]LI
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publicint getTotalCount(){ y,`q6(&
return totalCount; ygd*zy9
} O9RnS\
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publicvoid setTotalCount(int totalCount){ Nh !U
if(totalCount > 0){ 4tSh.qBht
this.totalCount = totalCount; \w-3Spk*
int count = totalCount / QBA{*@ A-
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pageSize; ,+x\NY2d
if(totalCount % pageSize > 0) X @/X65=[
count++; ,V)hV@Dk
indexes = newint[count]; 3wQ\L=
for(int i = 0; i < count; i++){ ;CuL1N#I
indexes = pageSize * M
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} 3f:]*U+O
}else{ 5f75r
this.totalCount = 0; hTPvt
} %D7 '7E8.
} cW?6Iao
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publicint[] getIndexes(){ "&\(:#L
return indexes; \aN5:Yy
} p*JP='p
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publicvoid setIndexes(int[] indexes){ VeH%E.:
this.indexes = indexes; >b~Q%{1
} k8cR`5@PK
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publicint getStartIndex(){ )-1$y+s>
return startIndex; w)h"?'m~
} @[1,i~H
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publicvoid setStartIndex(int startIndex){ *48LQzc
if(totalCount <= 0) 1+l[P9?R[
this.startIndex = 0; ,S?:lQuK5
elseif(startIndex >= totalCount) [7[$P.MS{
this.startIndex = indexes ]ed7Q3lq
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[indexes.length - 1]; r%LG>c`^
elseif(startIndex < 0) [p)2!]y
this.startIndex = 0; y }h2
else{ 2(GLc*B>
this.startIndex = indexes YP{mzGdE&