Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 D r(0w{5
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 &@oI/i&0B
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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 uK" T~
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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 % akW43cE
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分页支持类: _`?cBu`
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java代码: d9v66mpJM
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package com.javaeye.common.util; YXWDbr:JX
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import java.util.List; v3Vve:}+
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publicclass PaginationSupport { }jCO@v;
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publicfinalstaticint PAGESIZE = 30; +=E\sEe
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privateint pageSize = PAGESIZE; Zo&i0%S\E
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privateList items; R%RbC!P
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privateint totalCount; T4.wz
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privateint[] indexes = newint[0]; N E9,kWI
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privateint startIndex = 0; $~FZJ@qa
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public PaginationSupport(List items, int rah"\f2
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totalCount){ GO"|^W
setPageSize(PAGESIZE); ]?=87w
setTotalCount(totalCount); ,1mL=|na
setItems(items); -z`%x@F<&L
setStartIndex(0); qF~9:`
} $f3 IO#N
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public PaginationSupport(List items, int ?3BcjD0
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totalCount, int startIndex){ n3~axRPO
setPageSize(PAGESIZE); ; H ;h[
setTotalCount(totalCount); zz
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setItems(items); gP
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setStartIndex(startIndex); Mrrpm%Y
} sr;&/l#7h
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public PaginationSupport(List items, int BQPmo1B
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totalCount, int pageSize, int startIndex){ 5]dlD #
setPageSize(pageSize); \"ahs7ABT
setTotalCount(totalCount); `qhT
setItems(items); <h:xZtz
setStartIndex(startIndex); nvrh7l9nX
} 7!AyL w
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publicList getItems(){ [M[#f&=Z
return items; jOfG}:>e\
} 6ncwa<q5
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publicvoid setItems(List items){ A^z{n/DiL
this.items = items; iUcX\
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} ~4~r
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publicint getPageSize(){ KUU{X~w
return pageSize; =OO4C
} DehjV6t
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publicvoid setPageSize(int pageSize){ vcu@_N 1Dc
this.pageSize = pageSize; KuJ9bn{u!C
} Cik1~5iF
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publicint getTotalCount(){ <w^u^)iLy1
return totalCount; *w@1@6?j
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publicvoid setTotalCount(int totalCount){ ]?(kaNQ"D
if(totalCount > 0){ v1{j1~ZR
this.totalCount = totalCount; \|S%zX
int count = totalCount / 4:rwzRDY
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pageSize; KR$Fd
if(totalCount % pageSize > 0) 14'\@xJMM
count++; sA?8i:]O:
indexes = newint[count];
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for(int i = 0; i < count; i++){ iz-z?)%
indexes = pageSize * q~9-A+n
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}else{ b_ TI_
this.totalCount = 0; F62 uDyY
} `]W9Fj<1j
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publicint[] getIndexes(){ OS#aYER~/
return indexes; >G|RVB
} F 6sQeU
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publicvoid setIndexes(int[] indexes){ Sa<(F[p`
this.indexes = indexes; =.8n K
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publicint getStartIndex(){ `D%i`"~Lf&
return startIndex; @Pcgm"H<
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publicvoid setStartIndex(int startIndex){ nV8'QDQ:Al
if(totalCount <= 0) TXi|
this.startIndex = 0; :7 LA/j
elseif(startIndex >= totalCount) t >"`rcg
this.startIndex = indexes 8/>.g.]
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[indexes.length - 1]; gf>H-718F
elseif(startIndex < 0) 0+iRgnd9?
this.startIndex = 0; _{'[Uf/l
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this.startIndex = indexes jz"
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[startIndex / pageSize]; 8i[TeW"
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publicint getNextIndex(){ \r:*`Z*y
int nextIndex = getStartIndex() + C0f%~UMwd
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pageSize; 3T.V*&
if(nextIndex >= totalCount) ]8%E'd
return getStartIndex(); PsUO8g'\
else 82,^Pu
return nextIndex; RTlC]`IGT
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publicint getPreviousIndex(){ EpF9&