Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 bhKe"#m|S
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 "JgwL_2
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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 OL.{lKJ3DV
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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 0c&DSL}6
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分页支持类: \O*W/9
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java代码: (ul_bA+
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package com.javaeye.common.util; &'m&'wDt:
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import java.util.List; }?6gj%$c
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publicclass PaginationSupport { m>DJ w7<
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publicfinalstaticint PAGESIZE = 30; |-]'~@~
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privateint pageSize = PAGESIZE; c`UizZ
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privateList items; 4@jX{{^6%
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privateint totalCount; &8JK^zQq
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privateint[] indexes = newint[0]; 7!
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privateint startIndex = 0; %/r:iD
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public PaginationSupport(List items, int xeRoif\4c
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totalCount){ L}tP_ *
setPageSize(PAGESIZE); I9sQPa
setTotalCount(totalCount); .bNG:y>
setItems(items); =GC,1WVEqV
setStartIndex(0); >%c>R'~h
} l(Uwci
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public PaginationSupport(List items, int pvdCiYo1r
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totalCount, int startIndex){ C|S~>4`
setPageSize(PAGESIZE); `>HrO}x^
setTotalCount(totalCount); S3y('
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setItems(items); 3#{Al[jq
setStartIndex(startIndex); 3
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} V?n=yg
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public PaginationSupport(List items, int %vRCs]
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totalCount, int pageSize, int startIndex){ +6(\7?
setPageSize(pageSize); 4mm>6w8NT
setTotalCount(totalCount); ufocj1IU
setItems(items); Wfsd$kN6{
setStartIndex(startIndex); =A_fL{ SM
} +EH"A
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publicList getItems(){ n"Wlfd0
return items; *~`BG5w
} Ed1y%mR>
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publicvoid setItems(List items){ 8-x)8B
this.items = items; B|r'
} WIw*//nw
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publicint getPageSize(){ SnY{|
return pageSize; tcJN`N
} D/Py?<n-B
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publicvoid setPageSize(int pageSize){ mpd?F'V
this.pageSize = pageSize; /1b7f'
} /sdZf|Zl
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publicint getTotalCount(){ h*\u0yD)
return totalCount; [-VIojs+u
} @jKB[S;JSn
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publicvoid setTotalCount(int totalCount){ f%rZ2h)
if(totalCount > 0){ wotw nE
this.totalCount = totalCount; pz]!T'
int count = totalCount / EvF[h:C2
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pageSize; A5Lzd
if(totalCount % pageSize > 0) \%&eDE 0
count++; 8"o@$;C
indexes = newint[count]; W@D./Th
for(int i = 0; i < count; i++){ _P*QX
indexes = pageSize * wv^n#
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} <,y> W!
}else{
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this.totalCount = 0; XfN(7d0
} ^95njE`>t`
} E[<*Al+N
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publicint[] getIndexes(){ xL"O~jTS
return indexes; t$rla_rbY
} k`J|]99Wb
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publicvoid setIndexes(int[] indexes){ .sD=k3d
this.indexes = indexes; Pk;YM}
} od^ylg>K
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publicint getStartIndex(){ ?@;#|^k9
return startIndex; \} _,g
} eg24.W9c
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publicvoid setStartIndex(int startIndex){ R[OXYHu
if(totalCount <= 0) MfO:BX@$
this.startIndex = 0; BlqISyrY
elseif(startIndex >= totalCount) c7RQ7\
this.startIndex = indexes iU AY
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[indexes.length - 1]; }
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elseif(startIndex < 0) <
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this.startIndex = 0; s;-AZr)
else{ lX"6m}~D
this.startIndex = indexes P~%+KxwZQ
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[startIndex / pageSize]; "uFwsjz&B
} uaZHM@D
} 5]n\E?V'L
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publicint getNextIndex(){ :aH5=@[!y
int nextIndex = getStartIndex() + gFsqCx<q
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pageSize; KD?b|y@
if(nextIndex >= totalCount) bP> Kx-%q
return getStartIndex(); lnRL^ }
else -!}3bl*(7
return nextIndex; c=X+uO-
} F~eY'~&H}
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publicint getPreviousIndex(){ SmIcqM
int previousIndex = getStartIndex() - 4]6-)RHFB
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pageSize; Je}0KW3G9L
if(previousIndex < 0) +wxsAGy_j
return0; bkS"]q)>
else \`E^>6!]q
return previousIndex; Ov^##E
} ~H1<