Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 xE9s=}
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 a $KM
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据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 =B/^c>w2
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 \/,SH?>4x
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分页支持类: <n#JOjHV
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java代码: q| j;dI&
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package com.javaeye.common.util; 2f-Z\3)9 J
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import java.util.List; @Xh4ZMyEx
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publicclass PaginationSupport { 8ZahpB
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publicfinalstaticint PAGESIZE = 30; 5Ut0I]h|z
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privateint pageSize = PAGESIZE; jb*#!m.l
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privateList items; n
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privateint totalCount; R
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privateint[] indexes = newint[0]; 7'<4'BGzl]
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privateint startIndex = 0; QzS{2Y[OQ
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public PaginationSupport(List items, int 5 Fd ]3
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totalCount){ ?r@ZTuq#
setPageSize(PAGESIZE); %k2zsM
setTotalCount(totalCount); X~R
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setItems(items); 0!?f9kJq
setStartIndex(0); |e\:0O?
} 0xjV*0?s
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public PaginationSupport(List items, int [0rG"$(0Y
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totalCount, int startIndex){ 0zfrx-'zN
setPageSize(PAGESIZE); Le}q>>o;q
setTotalCount(totalCount); H37Z\xS
setItems(items); ?Jma^ S
setStartIndex(startIndex); sS0psw1
} X `vDhfh>N
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public PaginationSupport(List items, int N1SR nJu<f
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totalCount, int pageSize, int startIndex){ gF:wdcO
setPageSize(pageSize); |UBJu `%
setTotalCount(totalCount); ROfmAc
setItems(items); .Kv@p jOr
setStartIndex(startIndex); x~mXtqg
} %?cPqRHJ ~
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publicList getItems(){ NR3IeTd
return items; pLIBNo?
} eygyVhJ
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publicvoid setItems(List items){ >0m-S :lk
this.items = items; .)o5o7H
} nd?m+C&W
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publicint getPageSize(){ < ^&'r5H
return pageSize; sO*6F`eiZ
} HY42G#^
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publicvoid setPageSize(int pageSize){ j^k{~]+_^]
this.pageSize = pageSize; LQS*/s0
} E6G^?k~q
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publicint getTotalCount(){ Oe=,-\&_
return totalCount; A/.cNen
} kj[[78
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publicvoid setTotalCount(int totalCount){ vD*KJ3(c
if(totalCount > 0){ [;b9'7j'
this.totalCount = totalCount; a#{a{>
int count = totalCount / ;J_d%
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pageSize; B[*i}k%i
if(totalCount % pageSize > 0) c9&
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count++; RXP"v-
indexes = newint[count]; \K4m~e@!
for(int i = 0; i < count; i++){ %1lLUgf3G/
indexes = pageSize * Xu
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} ;P{ *'@
}else{ 4bKZ@r%
this.totalCount = 0; c=K M[s.
} 4Pt0^;H&jn
} D`gY6wX
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publicint[] getIndexes(){ qR1ez-#K
return indexes; {Cd*y6lI
} U-Iwda8v
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publicvoid setIndexes(int[] indexes){ .c',?[S/vH
this.indexes = indexes; FYi<+]HZ
} eD/?$@y
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publicint getStartIndex(){ |GsLcUv6
return startIndex; Qejzp/2
} yZ2,AR%
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publicvoid setStartIndex(int startIndex){ 4f1*?HX&
if(totalCount <= 0) !nd*U}q
this.startIndex = 0; RS93_F8
elseif(startIndex >= totalCount) oi!E
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this.startIndex = indexes 1]qhQd-u
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[indexes.length - 1]; =EG[_i{r
elseif(startIndex < 0) CR_A{(
this.startIndex = 0; 8<o(z'&y
else{ mT9TSW}
this.startIndex = indexes R{WG>c
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[startIndex / pageSize]; B.{yf4a#L
} :jhJpm1Xq
} 4RK^efnp
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publicint getNextIndex(){ y<gmp
int nextIndex = getStartIndex() + a7CJ~8-1K
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pageSize; 4~
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if(nextIndex >= totalCount) V^Nc0r
return getStartIndex(); "B\qp "N
else l^SKd
return nextIndex; `yf#(YP
} _LS=O@s^
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publicint getPreviousIndex(){ a]Lr<i8#%
int previousIndex = getStartIndex() - YlYTH_L>E
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pageSize; +Oxl1fDf
if(previousIndex < 0) P3:hGmk8|j
return0; *v&g>Ni
else Z)ObFJMG5
return previousIndex; N#UyAm<9
} S |B7HS5
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} LsLsSV
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抽象业务类 uh GL1{
java代码: kmuF*0Bjk
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/** KI#hII[Q.
* Created on 2005-7-12 F&uU
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package com.javaeye.common.business; PB`94W
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import java.io.Serializable; f-3lJ?6
import java.util.List;
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