Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 &QW&K
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 0!ZaR6
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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 c^pQitPv
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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 9*K-d'm
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分页支持类: -C~zvP;a
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java代码: -qaO$M^Q
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package com.javaeye.common.util; 32SkxcfrCK
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import java.util.List; :A @f[Y'9
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publicclass PaginationSupport { T$R#d&t
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publicfinalstaticint PAGESIZE = 30; f+s)A(?3
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privateint pageSize = PAGESIZE; |gu@b~8
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privateList items; Qb>("j~Z
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privateint totalCount; 6fI2y4yEz
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privateint[] indexes = newint[0]; 7 L,`7k|
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privateint startIndex = 0; Et(H6O8
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public PaginationSupport(List items, int UYJ>L
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totalCount){ Al8Dw)uG{
setPageSize(PAGESIZE); ?Sa,n^b*H
setTotalCount(totalCount); J(/J;PW
setItems(items); y }R2ZO
setStartIndex(0); hFr+K1
} #rGCv~0*l
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public PaginationSupport(List items, int xZ`vcS(
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totalCount, int startIndex){ *WJK&
setPageSize(PAGESIZE); 9e>2kd
setTotalCount(totalCount); 3gVU#T[[
setItems(items); +2 oZML
setStartIndex(startIndex); cl&?'`
)
} ~uZ9%UB_m
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public PaginationSupport(List items, int j#P4&
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totalCount, int pageSize, int startIndex){ B]<N7NYn1
setPageSize(pageSize); =FIZh}JD
setTotalCount(totalCount); rKslgZhQ
setItems(items); @jMo/kO/A
setStartIndex(startIndex); -X7x~x-
} uaKbqX
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publicList getItems(){ Z`GEF|eh
return items; bf2n%-&9g
}
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publicvoid setItems(List items){ PHIc7*_
this.items = items; *?uUP
} N: 38N
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publicint getPageSize(){ i>CR{q
return pageSize; Ti0kfjhX7
} !.O[@A\.-
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publicvoid setPageSize(int pageSize){ J>#yA0QD2
this.pageSize = pageSize; c?c\6*O
} )zz{~Cf
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publicint getTotalCount(){ u^E0u^
return totalCount; ELMz~vp
} E)jd>"
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publicvoid setTotalCount(int totalCount){ h,BPf5\S
if(totalCount > 0){ $t"QLsk0
this.totalCount = totalCount; +N+117m
int count = totalCount / mr#.uhd.z
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pageSize; Z>Rshtg
if(totalCount % pageSize > 0) <6+B;brh
count++; *9=}f;~
indexes = newint[count]; CW8YNJ'
for(int i = 0; i < count; i++){ #>lbpw
indexes = pageSize * 'w72i/
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} s%Ph
}else{ jR\! 2!
this.totalCount = 0; 40].:9VG
} udr|6EjD.
} s/11TgJ
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publicint[] getIndexes(){ w;AbJCv2
return indexes; $qZ6i
} |HY{Q1%
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publicvoid setIndexes(int[] indexes){ $qg2@X.
this.indexes = indexes; pMViq0
} Q7v1xBM
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publicint getStartIndex(){ $kmY[FWu?
return startIndex; l"X,[
} &c&TQkx
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publicvoid setStartIndex(int startIndex){ lAC"7 Z?F
if(totalCount <= 0)
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this.startIndex = 0;
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elseif(startIndex >= totalCount) Zj ^e8u=T
this.startIndex = indexes \j wxW6>
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[indexes.length - 1]; DyZ6&*s$
elseif(startIndex < 0) Ujvm|ml
this.startIndex = 0; :cXN
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else{ MuzQz.C
this.startIndex = indexes 7AGUi+!ICl
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[startIndex / pageSize]; bvhV
} !e
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publicint getNextIndex(){ OR+py.vK
int nextIndex = getStartIndex() + awQGu,<N
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pageSize; W[Z[o+7pK
if(nextIndex >= totalCount) p*@t$0i
return getStartIndex(); FBouXu#
else !lsa5w{
return nextIndex; e!w2_6?3
} s)-bOZi
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publicint getPreviousIndex(){ &><b/,]
int previousIndex = getStartIndex() - upeioC q
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pageSize; 1LvR,V<