Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 Ha#>G<;n
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 <ih[TtZ
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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 +*^H#|!
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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 b6 M
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分页支持类: `W-Fssu
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java代码: akT6^cP^
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package com.javaeye.common.util; Q,9oKg
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import java.util.List; }75e:w[
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publicclass PaginationSupport { JCaOK2XT;
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publicfinalstaticint PAGESIZE = 30; C-[1iW'
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privateint pageSize = PAGESIZE; ;>YzEo
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privateList items; !a<ng&H^U
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privateint totalCount; G9:l'\
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privateint[] indexes = newint[0]; MS]r:X6
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privateint startIndex = 0; gdoLyxQ
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public PaginationSupport(List items, int
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totalCount){ s0_nLbWwO
setPageSize(PAGESIZE); aATA9V
setTotalCount(totalCount); "Pf~iwfw
setItems(items); -]=@s
setStartIndex(0); ((I%'
} h@h! ,;
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public PaginationSupport(List items, int n}V_,:Z
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totalCount, int startIndex){ TU7'J
setPageSize(PAGESIZE); CA#,THty
setTotalCount(totalCount); nvUc\7(%NW
setItems(items); z~Q>V]a>;
setStartIndex(startIndex); pD74+/DD
} 3t6LT
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public PaginationSupport(List items, int [h:T*(R?
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totalCount, int pageSize, int startIndex){ +H
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setPageSize(pageSize); "}JZU!?
setTotalCount(totalCount); !L8#@BjU
setItems(items); $pudoAO
setStartIndex(startIndex); }{<
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} )tpL#J
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publicList getItems(){ U3:j'Su4H?
return items; nQ L@hc
} S[T8T|_
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publicvoid setItems(List items){ IkXx# )
this.items = items; s!e3|pGS
} D1mfm.9_r^
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publicint getPageSize(){ BRYHX.}h\A
return pageSize; gGS=cdlV
} Rx|;=-8zg
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publicvoid setPageSize(int pageSize){ Y]5l.SV
this.pageSize = pageSize; Zsh9>]ML
} {
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publicint getTotalCount(){ y#$CMf
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return totalCount; e NafpK
} $DUZ!zaH!
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publicvoid setTotalCount(int totalCount){ &l[$*<P5V
if(totalCount > 0){ &(mR>
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this.totalCount = totalCount; -FCe:iY! A
int count = totalCount / \_6/vZ%-B
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pageSize; [ps*uva
if(totalCount % pageSize > 0) jMDY(mwt
count++; <1COZ)
indexes = newint[count]; 9RI-Lq`
for(int i = 0; i < count; i++){ HOh!Xcu
indexes = pageSize * CWP2{
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} Dl8;$~
}else{ M {Q;:
this.totalCount = 0; D{~fDRR
} {&T_sw@[
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publicint[] getIndexes(){ 8&Y^""#e)
return indexes; [,KXze_m
} t3Y:}%M
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publicvoid setIndexes(int[] indexes){ 9,'ncw$/C
this.indexes = indexes; X/M4!L}\
} 1|6%evPu(
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publicint getStartIndex(){ om-omo&,X=
return startIndex; !GEJIefx_
} =k:,qft2
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publicvoid setStartIndex(int startIndex){ e2W".+B1
if(totalCount <= 0) 3CGp`~Zf
this.startIndex = 0; f &wb
elseif(startIndex >= totalCount)
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this.startIndex = indexes _8)*]-
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[indexes.length - 1]; 2Jmz(cH%
elseif(startIndex < 0) [o5Hl^
this.startIndex = 0; ; XN{x
else{ 4^OY
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this.startIndex = indexes ["e3Ez
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[startIndex / pageSize]; /mu*-,aeX
} pDCeQ6?
} 3az&