Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 U98_M)-%&
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 91up^
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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 bM"fk&
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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 IAI(Ix
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分页支持类: '[nmFCG%m*
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java代码: KAed!z9
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package com.javaeye.common.util; %[`a
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import java.util.List; vZ@g@zB4o0
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publicclass PaginationSupport { R&#tSL
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publicfinalstaticint PAGESIZE = 30; mV?&%>*(f
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privateint pageSize = PAGESIZE; < Dd%
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privateList items; )iU^&@[S
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privateint totalCount; :p>hW!~
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privateint[] indexes = newint[0]; 7Fz
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privateint startIndex = 0; d(7NO;S8
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public PaginationSupport(List items, int %d;<2b0
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totalCount){ !][F
setPageSize(PAGESIZE); x<ax9{
setTotalCount(totalCount); Ei5 wel6!
setItems(items); :#u}.G
setStartIndex(0); iW;i!,
} %NajFjBI
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public PaginationSupport(List items, int n ~,tQV
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totalCount, int startIndex){ *(QH{!-$s
setPageSize(PAGESIZE); *Zbuq8>
setTotalCount(totalCount); 2YOKM#N]
setItems(items); v`DI<Lt
setStartIndex(startIndex); -5bA
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} Dl C@fZD
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public PaginationSupport(List items, int _A+w#kiv>
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totalCount, int pageSize, int startIndex){ YF[f Z
setPageSize(pageSize); E(^0B(JF
setTotalCount(totalCount); #X`8dnQZ
setItems(items); bw4oLu?
setStartIndex(startIndex); d]wD[]
} jQh^WmN
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publicList getItems(){ +K~NV?c
return items; 6GL=)0Ah
} A??@AP[7M
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publicvoid setItems(List items){ C~4PE>YtTv
this.items = items; 8g~EL{'
} _\8qwDg"#e
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publicint getPageSize(){ -db75=
return pageSize; kkCZNQ~I
} Y&.UIosWb
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publicvoid setPageSize(int pageSize){ |L6&Gf]#5
this.pageSize = pageSize; 'UU\4M
} !#yq@2QX
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publicint getTotalCount(){ B 0ee?VC
return totalCount; NjuiD].
} wBSQ:f]g
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publicvoid setTotalCount(int totalCount){ Q \hY7Xq'
if(totalCount > 0){ 0(TTw(;
this.totalCount = totalCount; ]T:;Vo
int count = totalCount / Qdk6Qubi!
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pageSize; *fMpZ+;[m
if(totalCount % pageSize > 0) 6IcNZ!j98
count++; &53]sFZ
indexes = newint[count]; #-VMg+14
for(int i = 0; i < count; i++){ c}Z6V1]QP
indexes = pageSize * ~uWOdm-"[
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} k%c{ETdE
}else{ jKIxdY:U
this.totalCount = 0; ;bzX%f?|G
}
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} 1Na@|yY
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publicint[] getIndexes(){ `4?~nbz
return indexes; I=)hWC/
} 82{ Vc
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publicvoid setIndexes(int[] indexes){
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this.indexes = indexes; \W5O&G-C
} E51dV:l
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publicint getStartIndex(){ {6;9b-a]
return startIndex; $
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} ?lGG|9J\
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publicvoid setStartIndex(int startIndex){ 94uNI8
if(totalCount <= 0) Xaz o9J
this.startIndex = 0; bK"SKV
elseif(startIndex >= totalCount) hd\gH^wk
this.startIndex = indexes {N2g8W:
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[indexes.length - 1]; EF7+ *Q9
elseif(startIndex < 0) q\Q{sv_
this.startIndex = 0; _R'Fco
else{
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this.startIndex = indexes 5Wyz=+?m|
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[startIndex / pageSize]; WG*t::NN
} =L%DX#8
} 2]GdD*
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publicint getNextIndex(){ ~\ ,w {
int nextIndex = getStartIndex() + ](tx<3h
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pageSize; 6:GTD$Uz.
if(nextIndex >= totalCount) />¬$>
return getStartIndex(); XBd>tdEP
else iHwLZ[O{
return nextIndex; j?y LDLj
} ] h-,o
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publicint getPreviousIndex(){ {Q+gZcu
int previousIndex = getStartIndex() - Q9I
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pageSize; ju}fL<