Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 9air"4
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 `2y2Bk
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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 '@h5j6:2
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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 }^;Tt-*k
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分页支持类: "]81+
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java代码: t3.;W/0_
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package com.javaeye.common.util; W|o LS
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import java.util.List; y1!c:&
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publicclass PaginationSupport { ika/ GG
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publicfinalstaticint PAGESIZE = 30; A=/|f$s+
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privateint pageSize = PAGESIZE; y-gSal
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privateList items; F7wpGtt
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privateint totalCount; %l!Gt"\xm
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privateint[] indexes = newint[0]; NWuS/Ur`9
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privateint startIndex = 0; pt&(c[
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public PaginationSupport(List items, int (-tF=wR,W
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totalCount){ #8G(r9
setPageSize(PAGESIZE); w:P$S
setTotalCount(totalCount); TOp|Qtn
setItems(items); GtRc7,
setStartIndex(0); r7r>1W%4
} x,a(O@
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public PaginationSupport(List items, int 5"=qVmT)
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totalCount, int startIndex){ y-qbK0=X4
setPageSize(PAGESIZE); 8|uFW7Q
setTotalCount(totalCount); ^T83E}
setItems(items); vq|o}6Et
setStartIndex(startIndex); T> cvV
} ^fT|Wm<
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public PaginationSupport(List items, int *Y'@|xf*
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totalCount, int pageSize, int startIndex){ Mvq5s +.
setPageSize(pageSize); (5y+g?9d;
setTotalCount(totalCount); <\<[J0
setItems(items); C~IsYdln
setStartIndex(startIndex); -z9-f\
} 4hb<EH'_&
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publicList getItems(){ Z?yMy zT
return items; hm"i\JZ3N
} Z<6XB{Nh\
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publicvoid setItems(List items){ pBV_'A}ioh
this.items = items; u-g2*(ZT
} ;v0M
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publicint getPageSize(){ M8oCh
return pageSize; e"9u}-Q@
} Nf(Np1?;c
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publicvoid setPageSize(int pageSize){ d?G~k[C!a
this.pageSize = pageSize; #?/&H;n_8S
} [EUp4%Z #
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publicint getTotalCount(){ B2\R#&X.
return totalCount; a[;TUc^I1F
} bkfwsYZx
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publicvoid setTotalCount(int totalCount){ I^>m-M.
if(totalCount > 0){ eYd6~T[9
this.totalCount = totalCount; i`-,=RJ
int count = totalCount / :td#zM
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pageSize; 56 k89o
if(totalCount % pageSize > 0) VPG+]>*
count++; v0762w
indexes = newint[count]; {kGcZf3h
for(int i = 0; i < count; i++){ 69#D,ME?
indexes = pageSize * n\8;4]n
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} Y)*5M
}else{ @Sb 86Ee
this.totalCount = 0;
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} HAa2q=
} bvY'=
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publicint[] getIndexes(){ *7.EL`8
return indexes; 5ve4 u
} <xOv0B
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publicvoid setIndexes(int[] indexes){ ^fVLM>p <;
this.indexes = indexes; N|cWTbi
} >_3+s~
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publicint getStartIndex(){ P|mV((/m4
return startIndex; 2
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} "vVL52HwB
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publicvoid setStartIndex(int startIndex){ r83chR9
if(totalCount <= 0) Q"UWh~
this.startIndex = 0; 29P vPR6
elseif(startIndex >= totalCount) $6\-8zNk
this.startIndex = indexes ;4DqtR"7Y
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[indexes.length - 1]; |BrD:+
elseif(startIndex < 0) Y{yN*9a79
this.startIndex = 0; =Kdd+g!
else{ c5~d^
this.startIndex = indexes NPjh2 AJm
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[startIndex / pageSize]; _2*Ryz
} moO=TGG;F
} ZZ 1s}TG
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publicint getNextIndex(){ @o&.]FZs
int nextIndex = getStartIndex() + Gt{'` P,&9
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pageSize; WU oGIT'
if(nextIndex >= totalCount) @R+bR<}]
return getStartIndex(); \Kh@P*7
else \@]/ks=K
return nextIndex; hVQ
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} c-S_{~~
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publicint getPreviousIndex(){ nv WTx4oy
int previousIndex = getStartIndex() - XRU^7@Ylks
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pageSize; slSQ \;CDA
if(previousIndex < 0) AEx|<E0
return0; UPtWj8h
else Q8:`;W
return previousIndex; wFr}]<=Mi
} ,>-Q#
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} ]KX _a1e
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抽象业务类 bJ8~/d]+
java代码: DwTqj=l
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/** MZ_+doN
* Created on 2005-7-12 I W_:nm6
*/ [E_+fT
package com.javaeye.common.business; ~r~~0|=
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import java.io.Serializable; >patv
import java.util.List; k:(i sKIA
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