Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 !F'YDjTot
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 rw JIx|(
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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 jLm ;ty2;
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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 oAeUvmh
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分页支持类: aeM+ d`f
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java代码: ?GR"FmB(
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package com.javaeye.common.util; ;dgp+
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import java.util.List; PKiy5D*8p
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publicclass PaginationSupport { nmKp[-5
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publicfinalstaticint PAGESIZE = 30; eru.m+\
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privateint pageSize = PAGESIZE; ;[OH(!
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privateList items; c`w}|d]mC
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privateint totalCount; . 3T3EX|G
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privateint[] indexes = newint[0]; :*9Wh
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privateint startIndex = 0; ]Q)OL
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public PaginationSupport(List items, int BUXpCxQ
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totalCount){ y}ev ,j
setPageSize(PAGESIZE); LFRlzz;
setTotalCount(totalCount); j'"J%e]
setItems(items); JU&c.p
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setStartIndex(0); `Eo.v#<
} \"OG6G_>$
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public PaginationSupport(List items, int ; )@~
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totalCount, int startIndex){ (gWm,fI
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setPageSize(PAGESIZE); 1^JS Dd
setTotalCount(totalCount); cU!vsdR3
setItems(items); [5Mr@f4I
setStartIndex(startIndex); ~U&AI1t+J
} [?N~s:}
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public PaginationSupport(List items, int ~dTrf>R8M
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totalCount, int pageSize, int startIndex){ M gi,$H
setPageSize(pageSize); l}A93jSL
setTotalCount(totalCount); M&9+6e'-F
setItems(items); 60?%<oJ oH
setStartIndex(startIndex); T!)(Dv8@F
} \xw5JGm
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publicList getItems(){ FP4P|kl/9'
return items; 5D//*}b,
} 7Kxp=-k
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publicvoid setItems(List items){ T'Dv.h
this.items = items; a~y'RyA
} V/9!K%y
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publicint getPageSize(){ uiR8,H9*M
return pageSize; DT&@^$?
} U-tTW*[1]
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publicvoid setPageSize(int pageSize){ Fd9[pU
this.pageSize = pageSize; 0*{%=M
} )|#sfHv7
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publicint getTotalCount(){ s&3Vg7B
return totalCount; )oPBa
} bq0zxg%
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publicvoid setTotalCount(int totalCount){ Em~>9f
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if(totalCount > 0){ z9Rp`z&`E
this.totalCount = totalCount; 3eQ&F~S
int count = totalCount / @_}P-h
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pageSize; ;vjOUn[E
if(totalCount % pageSize > 0) V1B5w_^>h'
count++; p9{mS7R9T
indexes = newint[count]; >(t6.=
for(int i = 0; i < count; i++){ 89(Q1R ?:
indexes = pageSize * &\*(Q*2N
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} !'*-$e
}else{ *VxgARIL
this.totalCount = 0; i?^L/b`H
} T{[=oH+
} WCixKYq
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publicint[] getIndexes(){ fVpMx4&F
return indexes; u;2[AQ.
} GC}==^1
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publicvoid setIndexes(int[] indexes){ .3Oap*X
this.indexes = indexes; a<bwzX|.
} T1=fNF
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publicint getStartIndex(){ JY(WK@
return startIndex; 1#+S+g@#
} p H2Sbs:Tk
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publicvoid setStartIndex(int startIndex){ ;>7De8v@@
if(totalCount <= 0) Q*~]h;6\{d
this.startIndex = 0; z!9-:
elseif(startIndex >= totalCount) >e$PP8&i_T
this.startIndex = indexes .eVG:tl\
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[indexes.length - 1]; 7WZ+T"O{I
elseif(startIndex < 0) 4@ai6,<
this.startIndex = 0; o0KL5].
else{ ##" HF
this.startIndex = indexes Oxd]y1
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[startIndex / pageSize]; j|#Bo:2km
} %n9aaoD
} P+/e2Y
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publicint getNextIndex(){ $1`2kM5
int nextIndex = getStartIndex() + cSV aI
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pageSize; \
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if(nextIndex >= totalCount) k;FUs[
return getStartIndex(); 3)ywX&4"L
else ?.BC#S)q1
return nextIndex; p0vVkdd
} ?gGHj-HYJ
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publicint getPreviousIndex(){ G" "ZI$`
int previousIndex = getStartIndex() - f%}xO+.s
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pageSize; -nV9:opD
if(previousIndex < 0) {_v#~595
return0; pFjK}JOF
else *J`O"a
return previousIndex; ZPYS$Ydy
} 9x=Y^',5
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} Qzw;i8n{
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抽象业务类 "=Me M)K
java代码: e$rZ5X
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/** Pe3o;mx
* Created on 2005-7-12 }@d @3
*/ hp|YE'uYT
package com.javaeye.common.business; U&q