Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 {) Y
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 ~)oC+H@{
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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
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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 jWP(7}U
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分页支持类: >A2&
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java代码: P d*}0a~
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package com.javaeye.common.util; 2uiiTg>
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import java.util.List; J8/>b{Y
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publicclass PaginationSupport { nM
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publicfinalstaticint PAGESIZE = 30; '|WMt g
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privateint pageSize = PAGESIZE; 8&`s wu&
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privateList items; <`6-J `.
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privateint totalCount; K;[V`)d'
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privateint[] indexes = newint[0]; Jc{zi^)(EN
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privateint startIndex = 0; li/O&@g`
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public PaginationSupport(List items, int atl0#F Bd
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totalCount){ V4VTP]'n
setPageSize(PAGESIZE); d&R/f Im
setTotalCount(totalCount); I&>R]DV
setItems(items); y1k""75
setStartIndex(0); vcV=9q8P1
} Mc76)
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public PaginationSupport(List items, int Q#:,s8TW[
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totalCount, int startIndex){ (`>4~?|+T
setPageSize(PAGESIZE); oX?2fu-
setTotalCount(totalCount); FA4bv9:hi
setItems(items); 2! &:V]
setStartIndex(startIndex); 9O}YtX2
} $lV0TCgba8
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public PaginationSupport(List items, int 7F+w o
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totalCount, int pageSize, int startIndex){ TioI$?l>W(
setPageSize(pageSize); N'2u`br4KP
setTotalCount(totalCount); =>S5}6
setItems(items); +TUtVG
setStartIndex(startIndex); W P.6ea7k
} 4(B,aU>y
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publicList getItems(){ 6PJ0iten
return items; ;O{AYF?,N
} *h-nI=
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publicvoid setItems(List items){ tQ=U22&7
this.items = items; Gi;eDrgj~
} f}XUxIQ-<
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publicint getPageSize(){ $:mCyP<y
return pageSize; x#Hq74H,
} W0gaOew(^
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publicvoid setPageSize(int pageSize){ 2v%~KV
this.pageSize = pageSize; GHYgSS
} 0YIvE\-
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publicint getTotalCount(){ 7b'XQ/rs
return totalCount; `n5|4yaG~
} a*%>H(x
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publicvoid setTotalCount(int totalCount){ jsi\*5=9p<
if(totalCount > 0){ o?hya.;h4
this.totalCount = totalCount; D%Pq*=W
int count = totalCount / i~l0XjQbs
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pageSize; OZk(VMuI
if(totalCount % pageSize > 0) lBPZB%
count++; t0}3QGf;c
indexes = newint[count]; u-j Gv| ,|
for(int i = 0; i < count; i++){ dwAju:-H
indexes = pageSize * i:{a-Bd
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} &?YQVwsN
}else{ -Ux/ Ug@
this.totalCount = 0; ,{:5Z:<|
} Fwho.R-.
} -Z6ot{%
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publicint[] getIndexes(){ MdEZ839J
return indexes; Xg.\B1d
} Ibpk\a?A{
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publicvoid setIndexes(int[] indexes){ Mx$VAV^\
this.indexes = indexes; 9\Yj`,i5
} :5h&f
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publicint getStartIndex(){ ogjm6;
return startIndex; ]6$NU
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} \JN<