Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 0rE(p2
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 Em^(
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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 ll<NIdf\r
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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 \Fb| {6+
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分页支持类: k\7:{y@,
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java代码: ^^Jnv{)
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package com.javaeye.common.util; }Je>;{&%
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import java.util.List; {9 PR()_
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publicclass PaginationSupport { )^O-X.1
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publicfinalstaticint PAGESIZE = 30; 80B>L
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privateint pageSize = PAGESIZE; N "Wqy
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privateList items; .v\\Tq&"|
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privateint totalCount; "!UVs+)]
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privateint[] indexes = newint[0]; "Ty/k8?
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privateint startIndex = 0; W/+K9S25
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public PaginationSupport(List items, int U4,2 br>
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totalCount){ Nt -<W+,
setPageSize(PAGESIZE); lmCZ8 j(FF
setTotalCount(totalCount); pwX C
setItems(items); Z)"61)
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setStartIndex(0); {]}s#vvy
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public PaginationSupport(List items, int 0GXO&rCG
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totalCount, int startIndex){ "ZMkL)'7-
setPageSize(PAGESIZE); #-#NqX:
setTotalCount(totalCount); Qx`~g,wk8
setItems(items); .ln8|;%
setStartIndex(startIndex); 5#JJ?
} ;/8 {N0
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public PaginationSupport(List items, int SU%DW 46
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totalCount, int pageSize, int startIndex){ v3RcwySk
setPageSize(pageSize); uB.-t^@
setTotalCount(totalCount); ^]c6RE_
setItems(items); xytr2V ]aV
setStartIndex(startIndex); ;N=G=X|}
} Ug"rJMZG
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publicList getItems(){ I9y.e++/
return items; <vc`^Q&4B
} 3I=kr
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publicvoid setItems(List items){ {Gi h&N
this.items = items; GA3sRFZdQ
} `NNf&y)y
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publicint getPageSize(){ RMXzU
return pageSize; @xWdO,#
} edC4BHE
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publicvoid setPageSize(int pageSize){ ]$iN#d|ZU
this.pageSize = pageSize; Tupiq
} (Xxn\*S
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publicint getTotalCount(){ >yK0iK{
return totalCount; nKh&-E
} m:CTPzAt
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publicvoid setTotalCount(int totalCount){ \ FzM4-
if(totalCount > 0){ <G3&z#]#4
this.totalCount = totalCount; uOi&G:=
int count = totalCount / ~P f5ORoe
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pageSize; h3G.EM:eG
if(totalCount % pageSize > 0) *,WP,-0
count++; gUax'^w;V;
indexes = newint[count]; )ZR+lX}
for(int i = 0; i < count; i++){ Qo0H
indexes = pageSize * r0dDHj~F
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} $p* p
}else{ =[tSd)D,y
this.totalCount = 0; O/Y)&VG7
} woOy*)@
} z4U9n'{
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publicint[] getIndexes(){ 2z0n<`
return indexes; udqS'g&
} )M<vAUF
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publicvoid setIndexes(int[] indexes){ Z@rN_WXx
this.indexes = indexes; Xa9TS"
} d+L#t
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publicint getStartIndex(){ 7,$z;Lr0S
return startIndex; |QZ58)>
} ' P"g\;Ij
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publicvoid setStartIndex(int startIndex){ ZU&"73
if(totalCount <= 0) %"$@%"8;3
this.startIndex = 0; g[z.*y/
elseif(startIndex >= totalCount) T=Z.U$
this.startIndex = indexes JC;^--0(z
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[indexes.length - 1]; \l#>dq "Y
elseif(startIndex < 0) e(B9liXM
this.startIndex = 0; '_0]vupvY
else{ ?(zoTxD
this.startIndex = indexes QDmYSY$
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[startIndex / pageSize]; c9Es%@]
} ,d,\-x-+/
} $a;]_ Y
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publicint getNextIndex(){ $ItF])Bj5N
int nextIndex = getStartIndex() + ZXb0Y2AVx
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pageSize; I*[tMzE
if(nextIndex >= totalCount) V9 }t0$LN
return getStartIndex(); Z'v-F^
else [THG4582oB
return nextIndex; B7*}c]^6/
} &