Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 .Wvg{ S-
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 ,IQ%7*f;O_
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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 AR5)Uws
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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 t$b{zv9C
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分页支持类: q%8Ck)xz
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java代码: 6yXMre)YV
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package com.javaeye.common.util; 6ragRS/'x
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import java.util.List; )TyI~5>;
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publicclass PaginationSupport { 84M*)cKR~
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publicfinalstaticint PAGESIZE = 30; @!2vS@f
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privateint pageSize = PAGESIZE; gL6.,4q+1
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privateList items; $h8,QPy
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privateint totalCount; ~MLBO
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privateint[] indexes = newint[0]; L$
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privateint startIndex = 0; )dZ1$MC[
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public PaginationSupport(List items, int t
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totalCount){ u1_NC;
setPageSize(PAGESIZE); &=hkB9
;
setTotalCount(totalCount); m0+'BC{$u
setItems(items); [,|;rt\o>
setStartIndex(0); "y$s`n4Mj
} ,3FG' q2
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public PaginationSupport(List items, int *K2fp=Ns
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totalCount, int startIndex){ WS1$cAD2N
setPageSize(PAGESIZE); Lo^gg#o
setTotalCount(totalCount); ({kOgOeC
setItems(items); V.Qy4u7m
setStartIndex(startIndex); e[*%tx H
} b?%Pa\,!
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public PaginationSupport(List items, int R:t
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totalCount, int pageSize, int startIndex){ nj5Hls
setPageSize(pageSize); [Cf{2WB:7
setTotalCount(totalCount); x] j&Knli
setItems(items); OZi4S3k
setStartIndex(startIndex); &<oDl_^
} +IPMI#n
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publicList getItems(){ b{hdEb
return items; _/)HAw?k
} \K(QE ~y'W
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publicvoid setItems(List items){ 1i:Q
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this.items = items; /[#5<;
} T +~
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publicint getPageSize(){ !S5_+.U#
return pageSize; Swnom?t
} xr).ZswQ
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publicvoid setPageSize(int pageSize){ O>kM2xw
this.pageSize = pageSize; rv;is=#1
} e{7"7wn=
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publicint getTotalCount(){ I18<brZJ
return totalCount; Vf] ;hm
} 9>hK4&m^
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publicvoid setTotalCount(int totalCount){ _omz74
if(totalCount > 0){ rX@?~(^ML
this.totalCount = totalCount; BhCOT+i;c
int count = totalCount / I2^Eo5'
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pageSize; LQ3J$N
if(totalCount % pageSize > 0) o`<ps$yT
count++; dPCn6
indexes = newint[count];
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for(int i = 0; i < count; i++){ 2!;U.+(
indexes = pageSize * 66%4p%#b4
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} V4qv7
}else{ ]q CCCI`
this.totalCount = 0; FCA]zR1
} @]xHt&j
} ISALR{Aq
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publicint[] getIndexes(){ ^b@&O-&s
return indexes; 8KyF0r?
} n>aH7
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publicvoid setIndexes(int[] indexes){ m(eR Wx&pZ
this.indexes = indexes; L+J)
} ePxwN?
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publicint getStartIndex(){ jpRC6b?
return startIndex; [|{m/`8C
} _5&LV2
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publicvoid setStartIndex(int startIndex){ :]+p#l
if(totalCount <= 0) T f;:C]
this.startIndex = 0; Y4)v>&H
elseif(startIndex >= totalCount) fZF.eRP'
this.startIndex = indexes =?s0.(;
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[indexes.length - 1]; &L`yX/N2
elseif(startIndex < 0) ST7Xgma-
this.startIndex = 0; v7@O ,%
else{ WuUT>omH
this.startIndex = indexes fOkB|E]
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[startIndex / pageSize]; q;#:nf"
} C:$pAE(
} L$4nbOu\~
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publicint getNextIndex(){ AB")aX2%E
int nextIndex = getStartIndex() + ~zD*=h2C
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pageSize; {u_2L_
if(nextIndex >= totalCount) 'Bb@K[=s
return getStartIndex(); #uillSV
else 8jz[;.jP",
return nextIndex; }&:F,q*
} ~u+|NtF
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publicint getPreviousIndex(){ >$dkA\&p