Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 O~6Q;q P
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 6b<+8w
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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 *> KHRR<N
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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 r4?b0&Xq
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分页支持类: ]^ #`j
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java代码: ZBJ3 VK
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package com.javaeye.common.util; +zsZNJ(U
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import java.util.List; zKxvN3!
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publicclass PaginationSupport { [O_^MA,z
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publicfinalstaticint PAGESIZE = 30; &6/%kkv
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privateint pageSize = PAGESIZE; _q)!B,y-/N
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privateList items; (a }J$:
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privateint totalCount; 0[)VO[
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privateint[] indexes = newint[0]; l E^*t`+
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privateint startIndex = 0; qo_]ZKL44
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public PaginationSupport(List items, int _!!}'fMC
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totalCount){ ]'k[u
setPageSize(PAGESIZE); ?'sXgo.}
setTotalCount(totalCount); ru{f]|
setItems(items); mM5|K@0|
setStartIndex(0); nJT4w|Yx
} JUQg 'D
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public PaginationSupport(List items, int XV=S)
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totalCount, int startIndex){ 2]2H++
setPageSize(PAGESIZE); 8a>SC$8"
setTotalCount(totalCount); %hINpZMr
setItems(items); M4?8xuC
setStartIndex(startIndex); gvyT-XI
} >'`Sf ?+|
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public PaginationSupport(List items, int %8w9E=
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totalCount, int pageSize, int startIndex){ "-
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setPageSize(pageSize); w!`Umll2
setTotalCount(totalCount); iYKU[UP?
setItems(items); `*yAiv>
setStartIndex(startIndex); .X'<
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} }fA;7GW+9
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publicList getItems(){ U=cWmH
return items; QU/3X 1W
} a2yE:16o6
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publicvoid setItems(List items){ ~HmxEk9
this.items = items; O>V(cmqE`
} -@M3Dwsi3
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publicint getPageSize(){ VVuR+=.&
return pageSize; P`TIaP9%E
} +xj "hX>3
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publicvoid setPageSize(int pageSize){ c+2%rh1
this.pageSize = pageSize; %idk@~H Cg
} S&?7K-F>_o
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publicint getTotalCount(){ /\E [
return totalCount; `4
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} !M;A*:-
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publicvoid setTotalCount(int totalCount){ *)> do
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if(totalCount > 0){ o| D^`Z
this.totalCount = totalCount; Wx]d $_
int count = totalCount / |!LnAh
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pageSize; ZL_[4Y
if(totalCount % pageSize > 0) 6y
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count++; 3KcaT5(&
indexes = newint[count]; ]sj0~DI*m
for(int i = 0; i < count; i++){ aB"xqh)a}T
indexes = pageSize * X:=c5*0e
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} c2<,|D|
}else{ k^An97J
this.totalCount = 0; saW!9HQj
} $}tjS3klr
} ?)i1b\4Go
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publicint[] getIndexes(){ {1~T]5
return indexes; Do*n#=
} \##5O7/1
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publicvoid setIndexes(int[] indexes){ };S0 G!
this.indexes = indexes; 4tJa-7
} 5=Lq=,K$
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publicint getStartIndex(){ kMxjS^fr
return startIndex; Mqv[XHfB
} _x % 1 F
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publicvoid setStartIndex(int startIndex){ yA;W/I4
if(totalCount <= 0) YV([2
this.startIndex = 0; 8;n_TMb
elseif(startIndex >= totalCount) 6E^~n
this.startIndex = indexes &88oB6$D^q
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[indexes.length - 1]; \dkOK`)b
elseif(startIndex < 0) D7Zm2Kj
this.startIndex = 0; Z8&'f,
else{ CAgaEJhX3
this.startIndex = indexes 0=![fjm
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[startIndex / pageSize]; ~<ri97)
} g}Qx`65:
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publicint getNextIndex(){ d`%Mg&