Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ZS\~GQbG
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 ,VdNP
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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 P/e6b
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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 FT$Z8
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分页支持类: {dF_=`.
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java代码: CqkY_z
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package com.javaeye.common.util; Y:-O/X
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import java.util.List; bnYd19>
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publicclass PaginationSupport { [42EqVR
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publicfinalstaticint PAGESIZE = 30; % r>v^1Vo
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privateint pageSize = PAGESIZE; !x@3U^${
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privateList items; ["65\GI?
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privateint totalCount; 4/J"}S
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privateint[] indexes = newint[0]; =(cfo_B@K
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privateint startIndex = 0; %m5&Y01
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public PaginationSupport(List items, int 7~2c"WE
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totalCount){ 5%K(tRc|
setPageSize(PAGESIZE); %~$coZY^
setTotalCount(totalCount); kx.8VUoM
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setItems(items); ]qPrXuS/
setStartIndex(0); J7Y lmi
} Bl1^\[#
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public PaginationSupport(List items, int W0qn$H
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totalCount, int startIndex){ ?Zv>4+Y'
setPageSize(PAGESIZE); ["7]EW\!:
setTotalCount(totalCount); X7Z=@d(
setItems(items); lVra&5
setStartIndex(startIndex); :|PI_
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} .wvgHi
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public PaginationSupport(List items, int *:tfz*FG$G
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totalCount, int pageSize, int startIndex){ Q@aDa 8Z
setPageSize(pageSize); t[=teB v<
setTotalCount(totalCount); ul!e!^qwx
setItems(items); FNy-&{P2
setStartIndex(startIndex); fB"It~ p
} <]wQ;14;H
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publicList getItems(){ O;CC(
return items; }h=}!R'm
} >Nr~7s
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publicvoid setItems(List items){ 25wvB@0&
this.items = items; -?Kd[Ma
} ;/s##7qf
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publicint getPageSize(){ Zg;%$ kSQ
return pageSize; 3"HX':8x
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publicvoid setPageSize(int pageSize){ Cj1nll8c
this.pageSize = pageSize; DR
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} -*AUCns#
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publicint getTotalCount(){ ,%4~ulKMn
return totalCount; m$!Ex}2
} r[W
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publicvoid setTotalCount(int totalCount){ Ds@nuQ
if(totalCount > 0){ w3E#v&"=Y
this.totalCount = totalCount; -![>aqWmj1
int count = totalCount / </-aG[Fi
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pageSize; ibL
if(totalCount % pageSize > 0) d*tn&d~k,
count++; .\}nDT
indexes = newint[count]; W~Ae&gcn#
for(int i = 0; i < count; i++){ Kk|4
indexes = pageSize * gBd@4{y6C.
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} 1!p7N$QR
}else{ * G0I2
this.totalCount = 0; $-p#4^dg
} F|!
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} 3 Xl!Z^W
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publicint[] getIndexes(){ >))K%\p
return indexes; |@Sj:^cJD
} 9D,/SZ-v
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publicvoid setIndexes(int[] indexes){ 4ztU) 1
this.indexes = indexes; %Gc)$z/Wd
} Xn
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publicint getStartIndex(){ r9y(j
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return startIndex; @D+2dT0[M
} gvCQ![
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publicvoid setStartIndex(int startIndex){ =.\PG[
if(totalCount <= 0) @;`d\lQ
this.startIndex = 0; )m<CmYr2
elseif(startIndex >= totalCount) BVe c
this.startIndex = indexes Pt\GVWi_t
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[indexes.length - 1]; D V=xqC6}
elseif(startIndex < 0) nk.j7tu
this.startIndex = 0; FfpP<(4
else{ 'v 0(ki#
this.startIndex = indexes 7(plHW|
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[startIndex / pageSize]; YF68Ax]
} Ac8t>;=&
} vNSeNS@jxC
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publicint getNextIndex(){ Ck>{7Gw
int nextIndex = getStartIndex() + |?<^4U8
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pageSize; c$b~?Mx
if(nextIndex >= totalCount) {N'<_%cu
return getStartIndex(); Y0xn}:%K
else SI9PgC
return nextIndex; ?G<.W[3
} 49-wFF
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publicint getPreviousIndex(){ \Y^GA;AMQQ
int previousIndex = getStartIndex() - "a=dx|
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pageSize; e!oL!Zg
if(previousIndex < 0) z#Db~
return0; |"i"8~/@<
else Yx':~
return previousIndex; nNpXkI:
} PsO>&Te