Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 pa#d L!J
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 L Y6;.d$J
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据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 El<]b7
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 l6(-I
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分页支持类: 0 - ><q
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java代码: :!/gk8F|dI
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package com.javaeye.common.util; u7bLZU 0
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import java.util.List; ~n[d4qV&
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publicclass PaginationSupport { 0_k'.5l%
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publicfinalstaticint PAGESIZE = 30; W-Fu -Cz=
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privateint pageSize = PAGESIZE; JB ZUv
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privateList items; RZ6xdq}>
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privateint totalCount; F&])P-
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privateint[] indexes = newint[0]; t^`O{m<
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privateint startIndex = 0; df*5,NV'-*
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public PaginationSupport(List items, int cKN$ =gd
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totalCount){ GFfq+=se
setPageSize(PAGESIZE); o]Ol8I
setTotalCount(totalCount); "oWwc
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setItems(items); MepuIh
setStartIndex(0); 1mfs4
} {*[\'!d--.
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public PaginationSupport(List items, int m.px>v-
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totalCount, int startIndex){ ]E_h
setPageSize(PAGESIZE); <WjF*x p
setTotalCount(totalCount); Vm5c+;
setItems(items); Qd=^S^}(
setStartIndex(startIndex); qzI&<4
} $KUos+%
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public PaginationSupport(List items, int \=+b}mKV
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totalCount, int pageSize, int startIndex){ 6&DX] [G
setPageSize(pageSize); i O/K nH
setTotalCount(totalCount); 9Rn?
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setItems(items); {n/uh0>f*
setStartIndex(startIndex); cZH-"
} XQ%?
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publicList getItems(){ 61/.K_%I.
return items; LVc4CE
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} #mZpeB~
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publicvoid setItems(List items){ ^Y u6w\QM
this.items = items; nt;haeJ
} S{FROC~1R
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publicint getPageSize(){ #Y0-BYa^
return pageSize; %uJ<M-@r=u
} %)[+%57{
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publicvoid setPageSize(int pageSize){ (Fynok
this.pageSize = pageSize; QU%I43
} YX=2jI
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publicint getTotalCount(){ +j(d| L\
return totalCount; /CuXa%Ci^
} P~s$EJL*
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publicvoid setTotalCount(int totalCount){ nl(WJKq'
if(totalCount > 0){ }Ow>dV?
this.totalCount = totalCount; Zq,9&y~
int count = totalCount / 3uZJ.Fb
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pageSize; ?."&MZ
if(totalCount % pageSize > 0) $U$V?xuE
count++; |+35y_i6
indexes = newint[count]; 7SlsnhpW
for(int i = 0; i < count; i++){ +Vo}F
indexes = pageSize * qOSg!aft{Q
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} ndjx|s)E
}else{ 5Xl/L
this.totalCount = 0; 'fcMuBc+4
} fLSXPvm
} ,*&G1|_6
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publicint[] getIndexes(){ ddfs8\
return indexes; u)ev{)$TM
} )I^2k4Cg"
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publicvoid setIndexes(int[] indexes){ e1>aTu@
this.indexes = indexes; !
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} %V1Z~HC
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publicint getStartIndex(){ Di@GY!
return startIndex; N[<H7_/3
} r'dr9"-{
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publicvoid setStartIndex(int startIndex){ ~6pr0uyO`
if(totalCount <= 0) MZpK~c1`
this.startIndex = 0; `6[I^qG".
elseif(startIndex >= totalCount) yfjK2
this.startIndex = indexes aWwPvd3
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[indexes.length - 1]; 21ppSN>
elseif(startIndex < 0) P+!"wX0*N
this.startIndex = 0; h)6GaJ=
else{ Ti2Ls5H}
this.startIndex = indexes '8fk+>M
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[startIndex / pageSize]; LAP6U.m'd
} BnCKSg7V
} "F3]X)}
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publicint getNextIndex(){ :LWn<,4F&
int nextIndex = getStartIndex() + ari7 iF~j
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pageSize; ;>%~9j1C
if(nextIndex >= totalCount) +B'8|5tPX
return getStartIndex(); 0x11
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else W(25TbQ
return nextIndex; Zes+/.sA}]
} kWlAY%
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publicint getPreviousIndex(){ *d(SI<j
int previousIndex = getStartIndex() - @v}B6j b;
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pageSize; $s4Wkq
if(previousIndex < 0) _TUk(Qe
return0; @)>D))+
else uK("<u|
return previousIndex;
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} H{?9CxYa
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} b$Hz3TJ(
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抽象业务类 ygSL
java代码: M wab!Ya
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/** MlJVeod
* Created on 2005-7-12 (>=7ng^
*/ 2/36dGFH
package com.javaeye.common.business; E15vq6 DKF
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import java.io.Serializable; RGIoI]_
import java.util.List; BPqGJ7@
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import org.hibernate.Criteria; 0@5E|<