Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 D5]T.8kX(7
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 [wjA8d.
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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 H--(zxK
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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 RoJ{
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分页支持类: %_(e{Mf)
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java代码: L
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package com.javaeye.common.util; <I&X[Sqp
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import java.util.List; =xw) [
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publicclass PaginationSupport { &+xNR2";
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publicfinalstaticint PAGESIZE = 30; K!).QB'
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privateint pageSize = PAGESIZE; * A@~!@XE4
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privateList items; *=$Jv1"Q
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privateint totalCount; bfVKf}
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privateint[] indexes = newint[0]; O<
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privateint startIndex = 0; ]KA|};>ow
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public PaginationSupport(List items, int AcwLs%'sx
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totalCount){ .Qyq*6T3&
setPageSize(PAGESIZE); :Z- =1b~
setTotalCount(totalCount); u v%T0JA/
setItems(items); Ty}'A(U
setStartIndex(0); %|I~8>m
} N8@Fj!Zi
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public PaginationSupport(List items, int /3Zo8.
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totalCount, int startIndex){ z|Q)^
setPageSize(PAGESIZE); }G]6Rip3
setTotalCount(totalCount); #e}Q|pF
setItems(items); $>hPB[ [
setStartIndex(startIndex); D. fPHq
} i/6(~v
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public PaginationSupport(List items, int +g(>]!swb
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totalCount, int pageSize, int startIndex){ /vYuwaWG=
setPageSize(pageSize); l:-$ulAx
setTotalCount(totalCount); 3,8<5)ds*
setItems(items); XT9]+b8(M
setStartIndex(startIndex); Sp]"Xr)
} ,,sKPj[
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publicList getItems(){ ,6=j'j1#a
return items; M2W4 RovfR
} z\]]d?d?;
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publicvoid setItems(List items){ :XC~G&HuF6
this.items = items; Cvry8B
} p[2`H$A
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publicint getPageSize(){ y'((
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return pageSize; ;.Zgt8/.
} "oz
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publicvoid setPageSize(int pageSize){ +DmfqKKbd
this.pageSize = pageSize; 6!sC
} 5 Tag-+
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publicint getTotalCount(){ mEeD[dMN
return totalCount; 3k(A&]~v
} y-6k<RN
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publicvoid setTotalCount(int totalCount){ &b'IYoe
if(totalCount > 0){ R}_B\# Q
this.totalCount = totalCount; /'' |bIPa
int count = totalCount / 4
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pageSize; >o9tlO)
if(totalCount % pageSize > 0) mE=%+:o.
count++; mhVdsa
indexes = newint[count]; [1nfSW
for(int i = 0; i < count; i++){ <| 8N\FU{
indexes = pageSize * 1Bp?HyCR
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i; `k2YH?
} f8 E,.$>
}else{ iY?J3nxD-:
this.totalCount = 0; f@yInIzRJ
} 5, "
} )-VpDW!%_
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publicint[] getIndexes(){ o5LyBUJ
return indexes; Nk?eVJ)
} sB`.G
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publicvoid setIndexes(int[] indexes){ !xcLJ5^W
this.indexes = indexes; TS4Yzq,f
} _}+Aw{7!r
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publicint getStartIndex(){ dyWj+N5(
return startIndex; q> |&u
} uaghB,i'n
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publicvoid setStartIndex(int startIndex){ qQjd@J}^
if(totalCount <= 0) $0 ]xeD0X
this.startIndex = 0; >vQ8~*xd
elseif(startIndex >= totalCount) .JCd:'-
this.startIndex = indexes L7\V^f%yCm
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[indexes.length - 1]; 9U&~H*Hf
elseif(startIndex < 0) 42$ pvw<
this.startIndex = 0; 8k +^jj
else{ |ht:_l
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this.startIndex = indexes {$qE>ic
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[startIndex / pageSize]; &~=FXe0S
} _cvA1Q"
} tVQq,_9C
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publicint getNextIndex(){ N_wj,yF*
int nextIndex = getStartIndex() + Yo%ph%e
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pageSize; &?g!)O
if(nextIndex >= totalCount) ;P
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return getStartIndex(); mHe[
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else ba-4V8w
return nextIndex; !E7J Dk''@
} U45kA\[bZ
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publicint getPreviousIndex(){ cl04fqX
int previousIndex = getStartIndex() - gcF:/@:Rm
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pageSize; HTz5LAe~b7
if(previousIndex < 0) ZSWZz8
return0; ;gGq\c
else or,:5Z
return previousIndex; wxJu=#!M
} =E.!Ff4~(
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} {ty)2
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抽象业务类 9U>OeTh(
java代码: ONVhB
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/** wKU9I[]
* Created on 2005-7-12 ]A%]W ^G
*/ fn#qcZv?
package com.javaeye.common.business; mUj_V#v
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import java.io.Serializable; "7q!u,u
import java.util.List; n
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import org.hibernate.Criteria; @AtJO>w
import org.hibernate.HibernateException; ZJe^MnE (G
import org.hibernate.Session; `=V p 0tPI
import org.hibernate.criterion.DetachedCriteria; EDT9O
import org.hibernate.criterion.Projections; 7Q^p|;~a
import brCXimG&jo
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org.springframework.orm.hibernate3.HibernateCallback; {oSdVRI
import 6l'J!4*qY
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org.springframework.orm.hibernate3.support.HibernateDaoS YdDP;,
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upport; n:|a;/{I]9
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import com.javaeye.common.util.PaginationSupport; %nRgHN>
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public abstract class AbstractManager extends ayI<-s-
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HibernateDaoSupport { _h+7KK
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privateboolean cacheQueries = false; WeJ=]7T'L
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privateString queryCacheRegion; kXV;J$1
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publicvoid setCacheQueries(boolean a,36FF~&
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cacheQueries){ C7O8B;
this.cacheQueries = cacheQueries; S B~opN
} zLgc j(;
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publicvoid setQueryCacheRegion(String Mw3$QRM
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queryCacheRegion){ +BeA4d8b
this.queryCacheRegion = DIABR%0
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queryCacheRegion; %~I&T".iC
} |8pSMgN
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publicvoid save(finalObject entity){ iX o(
getHibernateTemplate().save(entity); -AD@wn!wCJ
} b@c(Nv
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publicvoid persist(finalObject entity){ ~s-bA#0S
getHibernateTemplate().save(entity); 7]} I
} R?zlZS.~
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publicvoid update(finalObject entity){ oi
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getHibernateTemplate().update(entity); -:95ypi
} j!@T@
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publicvoid delete(finalObject entity){ Siq]Ii0F;>
getHibernateTemplate().delete(entity); XHxJzYMc
} >?1GJ5]\s
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publicObject load(finalClass entity, fF(AvMsO
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finalSerializable id){ ep~+]7\
return getHibernateTemplate().load ber&!9
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(entity, id); DXG`% <ZMn
} X~UL$S;
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publicObject get(finalClass entity, Z^]jy>dj
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finalSerializable id){ Ypl;jkHP
return getHibernateTemplate().get #8sy QWlG
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(entity, id); -<g[P_#
} e`co:HO`#
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publicList findAll(finalClass entity){ rrR"2WuGO
return getHibernateTemplate().find("from <o9AjASv\,
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" + entity.getName()); :-O$rm
} |fywqQFq
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publicList findByNamedQuery(finalString ]?)uYot
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namedQuery){ (V&8
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return getHibernateTemplate pj<aMh
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().findByNamedQuery(namedQuery); lX%-oRQ/os
} sVr|kvn2
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publicList findByNamedQuery(finalString query, t
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finalObject parameter){ V,=5}qozQ
return getHibernateTemplate XlD=<$Nk7
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().findByNamedQuery(query, parameter); qtdkK LT
} )^BZ,e
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publicList findByNamedQuery(finalString query, K\KQ(N8F
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finalObject[] parameters){ .rG~\Ws
return getHibernateTemplate w_o+;B|I
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().findByNamedQuery(query, parameters); hxj\
} &"WgO!pzD
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publicList find(finalString query){ V dvj*I
return getHibernateTemplate().find ]Tb?z&
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(query); ,t QNL\t
} :-#7j}
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publicList find(finalString query, finalObject "=n%L +6%
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parameter){ BKO^ux%
return getHibernateTemplate().find cWyf04-?
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(query, parameter); W!T[
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} s-5#P,Lw
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public PaginationSupport findPageByCriteria 9(qoME}>=
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(final DetachedCriteria detachedCriteria){ q+4dHS)x
return findPageByCriteria 5x|$q kI
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(detachedCriteria, PaginationSupport.PAGESIZE, 0); "9dZ
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} eaNfCXHDN
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public PaginationSupport findPageByCriteria J/D~]U
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(final DetachedCriteria detachedCriteria, finalint 4"Qb^y
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startIndex){ L~e0^X?
return findPageByCriteria 9{U@s
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(detachedCriteria, PaginationSupport.PAGESIZE, @`+\vmfD
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startIndex); kCEo */,
} M:(.aEe
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public PaginationSupport findPageByCriteria A$7K5
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(final DetachedCriteria detachedCriteria, finalint k"%JyO8Y
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pageSize, AX&Emz-
finalint startIndex){ GIkeZV{4}
return(PaginationSupport) >TM{2b,(p
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getHibernateTemplate().execute(new HibernateCallback(){ >Ik%_:CC`
publicObject doInHibernate _-H,S)kI`
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(Session session)throws HibernateException { .b`8
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Criteria criteria = 7p\&