Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 D ZZRu8~
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 <|G!Qn?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 !v%>W< 3Q
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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 #<
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分页支持类: 't*]6^
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java代码: 7\nXJ381
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package com.javaeye.common.util; S+t2k&pm
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import java.util.List; rADzJ#CU\
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publicclass PaginationSupport { (@^ySiU
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publicfinalstaticint PAGESIZE = 30; cmCD}Skk
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privateint pageSize = PAGESIZE; 4
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privateList items; gyh8
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privateint totalCount; ;qWSfCt/^
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privateint[] indexes = newint[0]; ` ` Yk
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privateint startIndex = 0; *O[/-
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public PaginationSupport(List items, int ~MYE8xrId
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totalCount){ Ux= B*m1@{
setPageSize(PAGESIZE); 4Xt`L"f
setTotalCount(totalCount); jk\V2x@DR
setItems(items); VUHf-bKl
setStartIndex(0); yxf#@Je"
} Lg#(?tMp,'
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public PaginationSupport(List items, int ,Sy&?t}`
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totalCount, int startIndex){ kr
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setPageSize(PAGESIZE); cc}#-HKR[
setTotalCount(totalCount); Gui[/iY,F
setItems(items); 0E
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setStartIndex(startIndex); o>Dd1
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} tw\1&*:
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public PaginationSupport(List items, int Rxlv:
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totalCount, int pageSize, int startIndex){ ZB/1I;l`c
setPageSize(pageSize); 8?: 2<
setTotalCount(totalCount); =]pEvj9o
setItems(items); 8xhx*A
setStartIndex(startIndex); Acd@BL*
} hH%fWB2(
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publicList getItems(){ 2l8z/o 7v
return items; (L<G=XC
} J \I`#
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publicvoid setItems(List items){ IS!]!s'EI
this.items = items; `[f IK,
} Bq85g5Dc
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publicint getPageSize(){ w6k^|."
return pageSize; ]G=^7O]`C!
} gHU0Pr9'
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publicvoid setPageSize(int pageSize){ G9>
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this.pageSize = pageSize; P-\T BS_O
} $D#eD.
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publicint getTotalCount(){ d!q)FRzi
return totalCount; UrB{jS?
} _5768G`P
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publicvoid setTotalCount(int totalCount){ , @6_sl
if(totalCount > 0){ EF'U`\gX
this.totalCount = totalCount; )G9,5[
int count = totalCount / gMZ
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pageSize; uTUkRqtD!
if(totalCount % pageSize > 0) [6a&9#[A
count++; @X0$X+]E*8
indexes = newint[count]; l,M?
for(int i = 0; i < count; i++){ kR(hUc1O
indexes = pageSize * v!?>90a
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} q \\52:\
}else{ H9T'{R*FC
this.totalCount = 0; Ps7Bt(/
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publicint[] getIndexes(){ UPJ3YpK
return indexes; 3+$~l5LY
} 5i1Xumh 4
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publicvoid setIndexes(int[] indexes){ }Z}4_/E
this.indexes = indexes; |B.tBt^
} '>5W`lZ
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publicint getStartIndex(){ @phb5
return startIndex;
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} |Orp:e!
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publicvoid setStartIndex(int startIndex){ 41jx+
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if(totalCount <= 0) E
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this.startIndex = 0; 72 >/@
elseif(startIndex >= totalCount) :Sd
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this.startIndex = indexes ^<O=<tN\
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[indexes.length - 1]; o72G oUfs
elseif(startIndex < 0) -*Z;EA-
this.startIndex = 0; ^X/[x]UOT@
else{ 8(c,b
this.startIndex = indexes ?4,e?S6,[
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[startIndex / pageSize]; t1)Qa(#]
} L<**J\=7M
} +WYXj
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publicint getNextIndex(){ }&OgI