Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 <z*SO
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 PL#8~e;'
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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 D/w4u;E@
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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 l+.E'
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分页支持类: NW`.RGLI<
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java代码: {g2cm'hD
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package com.javaeye.common.util; 6EhRCl
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import java.util.List; ~EIY(^|py
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publicclass PaginationSupport { kyQ%qBv ^
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publicfinalstaticint PAGESIZE = 30; \#[W8k<Z
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privateint pageSize = PAGESIZE; #dDsI]E)
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privateList items; :z^ps0
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privateint totalCount; Wiqy".YY
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privateint[] indexes = newint[0]; K,[g<7X5
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privateint startIndex = 0; )p"37Ct?
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public PaginationSupport(List items, int 0}q ij
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totalCount){ PNXZ 3:W
setPageSize(PAGESIZE); J"8bRp=/|
setTotalCount(totalCount); ^Ois]#py
setItems(items); GBvB0kC) c
setStartIndex(0); ics
} j-ugsV`2=*
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public PaginationSupport(List items, int 0/<}.Z]
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totalCount, int startIndex){ StWDNAf)
setPageSize(PAGESIZE); MC/$:PV
setTotalCount(totalCount); }1w[G;$
setItems(items); 2GcQh]ohc
setStartIndex(startIndex); K;G1cFFyG
} AqvRzi(Y
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public PaginationSupport(List items, int Z;XR%n8
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totalCount, int pageSize, int startIndex){ uJMF\G=nb
setPageSize(pageSize); n.67f
setTotalCount(totalCount); +H_Jr'/
setItems(items); 8[,,Kr)-
setStartIndex(startIndex); "*#$$e53A
} N7%Jy?-+
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publicList getItems(){ 8nQlmWpJ
return items; 5?k_Q"~
} @\Sa)
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publicvoid setItems(List items){ Ka2U@fK"
this.items = items; .%3bXK+F
} p{!aRB%
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publicint getPageSize(){ 0gHJ%m9s
return pageSize; 6<NaME
} ;e()|
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publicvoid setPageSize(int pageSize){ H0
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this.pageSize = pageSize; kJ>l,AD/
} Vfp{7I$#6"
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publicint getTotalCount(){
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return totalCount; DkA cT[
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publicvoid setTotalCount(int totalCount){ m}]"TFzoVM
if(totalCount > 0){ h -+vM9j
this.totalCount = totalCount; 2y#4rl1Utx
int count = totalCount / W )q^@6[d
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pageSize; g$?B!!qT
if(totalCount % pageSize > 0) ?nB).fc
count++; 8~EDmg[
indexes = newint[count]; '7
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for(int i = 0; i < count; i++){ el.;T*Wn
indexes = pageSize * %&4sHDP
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}else{ =!9+f
this.totalCount = 0; {_ww1'|A
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publicint[] getIndexes(){ EfcoJgX
return indexes; u\ytiGO*
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publicvoid setIndexes(int[] indexes){ TWQf2
this.indexes = indexes; Z%N{Y x(
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publicint getStartIndex(){ (pH13qU5
return startIndex; ,@/b7BVv
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publicvoid setStartIndex(int startIndex){ Dvo.yn|kB
if(totalCount <= 0) -G(z!ed
this.startIndex = 0; 3 {\b/NL$
elseif(startIndex >= totalCount) T#|Qexz6 @
this.startIndex = indexes Ua,Lg.z
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[indexes.length - 1]; E&#AX:
elseif(startIndex < 0) ch 4z{7
this.startIndex = 0; -F/"W
else{ >+7+ gSD#:
this.startIndex = indexes 3K @dW"3
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[startIndex / pageSize]; ,`^B!U3m
} 69!J'kM[
} XGFU *g`kq
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