Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 tpI/Ibq
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 v[CR$@Y
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据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 lL}6IZ5sb
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 zK0M WyXO
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分页支持类: F6{g{
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java代码: Owp]>e
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package com.javaeye.common.util; 1$Up7=Dr=
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import java.util.List; 288mP]a(v_
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publicclass PaginationSupport { zJ`u>:*$
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publicfinalstaticint PAGESIZE = 30; 97c0bgI!+
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privateint pageSize = PAGESIZE; s'O%@/;J
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privateList items; %6ckau1_;
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privateint totalCount; 'O%*:'5k
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privateint[] indexes = newint[0]; .M6. ]H
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privateint startIndex = 0; x1=`Z@^
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public PaginationSupport(List items, int h]zok}$
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totalCount){ rEr=Mi2
setPageSize(PAGESIZE); R;"$ PHD
setTotalCount(totalCount); PvKGB01_
setItems(items); jLFaf#G]
setStartIndex(0); 2e6P?pX~2
} 8YSvBy
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public PaginationSupport(List items, int 1^IMoC7$#
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totalCount, int startIndex){ c{'Z.mut
setPageSize(PAGESIZE); \t{iyUxY
setTotalCount(totalCount); Jq1oQu|rs
setItems(items); 6@aH2+4+
setStartIndex(startIndex); n3e,vP? R
} /G5KNSi
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public PaginationSupport(List items, int _d!sSyk`
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totalCount, int pageSize, int startIndex){ fwppqIM
setPageSize(pageSize); CW;zviH5
setTotalCount(totalCount); CfOyHhhKX
setItems(items); &4E|c[HN
setStartIndex(startIndex); <v ub
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} Cq@7oi]W0
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publicList getItems(){ a,rXG
return items; _9oKW;7f7
} ErN[maix#
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publicvoid setItems(List items){ hLfWDf*T|
this.items = items; ,):aU
} _Q:ot'(~0-
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publicint getPageSize(){ =Vh]{y~$
return pageSize; W3l[a^1d
} d{TcjZ
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publicvoid setPageSize(int pageSize){ hl[<o<`Q
this.pageSize = pageSize; xpZ@DK;
} l>jrY1u
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publicint getTotalCount(){ )g=mv*9>
return totalCount; Qfe u3AT
} `LH 9@Z{
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publicvoid setTotalCount(int totalCount){ Ob%iZ.D|3<
if(totalCount > 0){ [voc_o7AI
this.totalCount = totalCount; S|d /?}C|e
int count = totalCount / M5[#YG'FlQ
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pageSize;
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if(totalCount % pageSize > 0) uWGp>;m eO
count++; Sw$&E
indexes = newint[count]; [1~3\-Y
for(int i = 0; i < count; i++){ %B&O+~
indexes = pageSize * 4FnePi~i
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} )~P<ruk>,C
}else{ ,!SbH
this.totalCount = 0; ; 8VZsh
} `?:{aOI
} [/ CB1//Y
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publicint[] getIndexes(){ [p\xk{7Y
return indexes; Jv(E'"H
} jHMP"(]
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publicvoid setIndexes(int[] indexes){ mj9|q8v{+
this.indexes = indexes; Uq=Rz8hLM
} &WCVdZK:
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publicint getStartIndex(){ `zs@W
return startIndex; _2k<MiqCD[
} GDj_+G;tO\
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publicvoid setStartIndex(int startIndex){ wPyc?:|KD?
if(totalCount <= 0) ;J?fK69%
this.startIndex = 0; ^=I[uX-3ue
elseif(startIndex >= totalCount) r?`nc6$0|
this.startIndex = indexes 7|Qb}[s
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[indexes.length - 1]; bq7()ocA
elseif(startIndex < 0) uA?a
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this.startIndex = 0; }zo-%#
else{ C#&b`
this.startIndex = indexes w6 Y+Y;,'f
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[startIndex / pageSize]; YU87l
} M/[9ZgDc
} EZ Q!~
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publicint getNextIndex(){ VuBi_v6
int nextIndex = getStartIndex() + 1^Q!EV
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pageSize; ~9fTs4U
if(nextIndex >= totalCount) Z,3CMWHg
return getStartIndex(); B^1jd!m
else _qit$#wK;
return nextIndex; { F0"U=
} 6{Bvl[mhI
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publicint getPreviousIndex(){ gi
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int previousIndex = getStartIndex() - BZQJ@lk5
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pageSize; X bV?=
if(previousIndex < 0) -r_ Pp}s
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else RvW>kATb_F
return previousIndex; I7ySm12}
} lKirc2
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} Tq6@
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抽象业务类 ~fA H6FdZ\
java代码: iow8H' F
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/** I>3G"[t
* Created on 2005-7-12 v2#qs*sW8
*/ Zfr?(y+3
package com.javaeye.common.business; !hPe*pPVV)
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import java.io.Serializable; j%0g*YI
import java.util.List; Bq:: 5,v
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import org.hibernate.Criteria; I'cM\^/h
import org.hibernate.HibernateException;
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import org.hibernate.Session; $r)nvf`\
import org.hibernate.criterion.DetachedCriteria; Y0OVzp9 b
import org.hibernate.criterion.Projections; !91<K{#A{
import ]_)=xF19
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org.springframework.orm.hibernate3.HibernateCallback; VM
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import
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org.springframework.orm.hibernate3.support.HibernateDaoS > cJX'U9
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upport; I=`efc]T
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import com.javaeye.common.util.PaginationSupport; jd DcmR
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public abstract class AbstractManager extends LYiz:cQh
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HibernateDaoSupport { ~oBSf+N
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privateboolean cacheQueries = false; [[u&=.Au
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privateString queryCacheRegion; yYTiAvN
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publicvoid setCacheQueries(boolean
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cacheQueries){ :!EOg4%i
this.cacheQueries = cacheQueries; >7V&pH'
} QPa&kl
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publicvoid setQueryCacheRegion(String k4-C*Gx$h
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queryCacheRegion){ T+/Gz'
this.queryCacheRegion = 2\!.w^7'^T
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queryCacheRegion; PFIL)D
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} T%F8=kb-9
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publicvoid save(finalObject entity){ ~F]- +|
getHibernateTemplate().save(entity); G#0 4h{
} M:(k7a+[^
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publicvoid persist(finalObject entity){ 71w$i
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getHibernateTemplate().save(entity); WYE[H9x1?
} Im_`q\i
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publicvoid update(finalObject entity){ N|1k6g=0
getHibernateTemplate().update(entity); !'C^qrh
} i_&&7.
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publicvoid delete(finalObject entity){ V9m1n=r
getHibernateTemplate().delete(entity); |v{a5|<E
} r,b-c
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publicObject load(finalClass entity, Rf\>bI<.
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finalSerializable id){ B|~\m~
return getHibernateTemplate().load D`.CXFI+U
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(entity, id); |^@TA=_
} uoKC+8GA
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publicObject get(finalClass entity, U=%S6uL\bx
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finalSerializable id){ @,sg^KB
return getHibernateTemplate().get !/$BXUrd
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(entity, id); ,[^P
} X;p,Wq#D'
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publicList findAll(finalClass entity){ 4oOe
return getHibernateTemplate().find("from _Oq (&I
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" + entity.getName()); W#0pFofXw
} :h3
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publicList findByNamedQuery(finalString 7z6y n=B
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namedQuery){ TZZqV8
return getHibernateTemplate w>rglm&
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().findByNamedQuery(namedQuery); ./ib{ @A.
} diqG8KaK
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publicList findByNamedQuery(finalString query, }`
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finalObject parameter){ =J?<M?ugf
return getHibernateTemplate 4- 6'
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().findByNamedQuery(query, parameter); +2W#=G
} 8'#%7+ "=!
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publicList findByNamedQuery(finalString query, Mi'eViH
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finalObject[] parameters){ 'L0 2lM
return getHibernateTemplate <v[,A8Q
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().findByNamedQuery(query, parameters); M* QqiE
} kAbT&Rm"
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publicList find(finalString query){ fwxyZBr
return getHibernateTemplate().find M6|Q~8$
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(query); /tP"r}l
} !OWV* v2
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publicList find(finalString query, finalObject vC J
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parameter){ ?~S\^4]
return getHibernateTemplate().find _.FxqH>
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(query, parameter); xb_35'$M
} s bW`
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public PaginationSupport findPageByCriteria ^X0<ZI
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