Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 g\M5:Qm
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 >E"9*:.^a
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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 RHNk%9
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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 QYThW7S
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分页支持类: G5'_a$
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java代码: Ttv9"z
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package com.javaeye.common.util; 7!2
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import java.util.List; Q;26V4
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publicclass PaginationSupport { R,Ml&4pZ}
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publicfinalstaticint PAGESIZE = 30; [BXyi
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privateint pageSize = PAGESIZE; mtw9AoO
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privateList items; ^g!B.ll`
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privateint totalCount; SFO&=P:U
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privateint[] indexes = newint[0]; v.`+I-\.z)
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privateint startIndex = 0; /PC` 0/b
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public PaginationSupport(List items, int jzrt7p*k}
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totalCount){ .xpmp6-
setPageSize(PAGESIZE); Fp:3#Bh
setTotalCount(totalCount); :dDxxrs"
setItems(items); aIu2>
setStartIndex(0); my,x9UPs
} j-* TXog
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public PaginationSupport(List items, int .3g&9WvN!Z
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totalCount, int startIndex){ 4 =Fg!Eu<
setPageSize(PAGESIZE); H7jTQW0rp5
setTotalCount(totalCount); cV]y=q6
setItems(items); 7!-
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setStartIndex(startIndex); $-w5o`e
} eU~?p|Np
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public PaginationSupport(List items, int SOI)/u
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totalCount, int pageSize, int startIndex){ #{w5)|S#JD
setPageSize(pageSize); g8Aj `O
setTotalCount(totalCount); gfV DqDF
setItems(items); E$T(Qu<-
setStartIndex(startIndex); A\C'dZ <N
} 'bm:u
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publicList getItems(){ yfq>,
return items; yiO31uQt
} qvTKfIl{
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publicvoid setItems(List items){ :A*0 ]X;
this.items = items; 6EP~F8Kd
} +:y&{K
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publicint getPageSize(){ lWlUWhLnP
return pageSize; jZ/+~{<
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publicvoid setPageSize(int pageSize){ R.UumBM
this.pageSize = pageSize; uWrFunh%
} }s6G!v^2""
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publicint getTotalCount(){ +3HPA#A
return totalCount; Z~RdFC
} Mz}i[|U\
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publicvoid setTotalCount(int totalCount){ .xnQd^qoac
if(totalCount > 0){ FpC~1Nau
this.totalCount = totalCount; k -]xSKG
int count = totalCount / f MzYFM'i
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pageSize; Zx9.p Fc"
if(totalCount % pageSize > 0) r8+*|$K
count++; )(.%QSA\C
indexes = newint[count]; gDj_KKd
for(int i = 0; i < count; i++){ <>&89E%j'
indexes = pageSize * !?n50
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} }8
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}else{ uegb;m
this.totalCount = 0; @LHtt/&
} Es~DHX
} >& [3
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publicint[] getIndexes(){ 8k%H[Smn:
return indexes; Yd.02 7
} X-v~o/r7
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publicvoid setIndexes(int[] indexes){ 9Yd-m
this.indexes = indexes; CHg]U l
} Z3Gm
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publicint getStartIndex(){ +&?'KZ+Z_v
return startIndex; l&$*}yCK
} FQQ@kP$.
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publicvoid setStartIndex(int startIndex){ dJaEoF
if(totalCount <= 0) =;g= GcVK
this.startIndex = 0; QWKs[yfdo
elseif(startIndex >= totalCount) )I?RMR
this.startIndex = indexes y
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[indexes.length - 1]; .?70=8{
elseif(startIndex < 0) g"w)@*?K
this.startIndex = 0; N]V/83_
else{ >|5XaaDa
this.startIndex = indexes FE>3 D1\
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[startIndex / pageSize]; U~Xf= f_Q$
} !>q?dhw@
} )< l\jfx e
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publicint getNextIndex(){ DqRLx85d1
int nextIndex = getStartIndex() + /!:L7@BZ
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pageSize; vs+We*8H
if(nextIndex >= totalCount) 8~}s 3j4
return getStartIndex(); dRHlx QUn
else 'G52<sF
return nextIndex; 2(hvv-
} S ]vW&r3`
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publicint getPreviousIndex(){ FBYll[8
int previousIndex = getStartIndex() - a (P^e)<
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pageSize; ]DGGcUk7
if(previousIndex < 0) EqVsxwa
return0; 9=H}yiJz
else r+SEw ;
return previousIndex; i1tVdbC]
} bx;yHIRb
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} `:V}1ioX5
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抽象业务类 QCVsVG!sN
java代码: Lf[G>0t&n
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/** oo;;y,`8py
* Created on 2005-7-12 IkiQOk
*/ !T)T_P[
package com.javaeye.common.business; @< wYT$
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import java.io.Serializable; #,7eQaica
import java.util.List; 2O$95M
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import org.hibernate.Criteria; 'y'T'2N3
import org.hibernate.HibernateException; =U=e?AOG2
import org.hibernate.Session; [0h* &
import org.hibernate.criterion.DetachedCriteria; xi;/^)r
import org.hibernate.criterion.Projections; U? {'n#n 5
import _{[k[]
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org.springframework.orm.hibernate3.HibernateCallback; M' a&
import GU:r vS!
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org.springframework.orm.hibernate3.support.HibernateDaoS @^'G&%j
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upport; .WBI%ci
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import com.javaeye.common.util.PaginationSupport; _)OA$
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public abstract class AbstractManager extends dCa}ITg
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HibernateDaoSupport { :D<:N*9i
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privateboolean cacheQueries = false; x{=[w`
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privateString queryCacheRegion; c-[Q,c
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publicvoid setCacheQueries(boolean }f<fgY
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cacheQueries){ l*F!~J3
this.cacheQueries = cacheQueries; |WD,\=J2
} pe\Txg6
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publicvoid setQueryCacheRegion(String #]5&mKi
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queryCacheRegion){ #[gcg]6c
this.queryCacheRegion = 4w;rl(s
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queryCacheRegion; h5LJijJ
} 4RK.Il*d
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publicvoid save(finalObject entity){ ?)Tz'9l
getHibernateTemplate().save(entity); mXxZM;P[
} X{0ax.
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publicvoid persist(finalObject entity){ )ZS:gD
getHibernateTemplate().save(entity); !L&=?CX
} 5W?yj>JR
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publicvoid update(finalObject entity){ I}*]m%'-Y
getHibernateTemplate().update(entity); aHBByH
} NYSj^k;^(z
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publicvoid delete(finalObject entity){ ]7#^])>
getHibernateTemplate().delete(entity); a-z23$3
} <Z\MZ&{k{*
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publicObject load(finalClass entity, gt2>nTJz.Z
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finalSerializable id){ afxj[;p!
return getHibernateTemplate().load zxk??0]/
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(entity, id); xWC\954
} -(4E
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publicObject get(finalClass entity, !7O=<