Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 z~2{`pET
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 jyD~ER}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 R'sNMWM
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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 J4ZHE\
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分页支持类: ?98!2:'{9
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java代码: g8cBb5(L
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package com.javaeye.common.util; *%/O (ohs@
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import java.util.List; t Cb34Wpf
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publicclass PaginationSupport { <O7!(
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publicfinalstaticint PAGESIZE = 30; =/K)hI!u
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privateint pageSize = PAGESIZE; inh:b .,B
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privateList items; 0GxJja
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privateint totalCount; \dJhDR
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privateint[] indexes = newint[0]; N&
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privateint startIndex = 0; :pM8Q1:B
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public PaginationSupport(List items, int E"9(CjbQ[
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totalCount){ HL&HY)W1gf
setPageSize(PAGESIZE); T/E=?kBR
setTotalCount(totalCount); "a].v 8l!
setItems(items); N
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setStartIndex(0); Y_Fn)(
} @\nQ{\^;
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public PaginationSupport(List items, int z=KDkpV
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totalCount, int startIndex){ u
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setPageSize(PAGESIZE); UhqTn$=fb
setTotalCount(totalCount); IDn<5#
setItems(items); ;4!H- qZ
setStartIndex(startIndex); MlYm\x8{M
} QOEi.b8r
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public PaginationSupport(List items, int zYV{ |Z
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totalCount, int pageSize, int startIndex){ mDz44XO
setPageSize(pageSize); b9rQQS
setTotalCount(totalCount); "LlQl3"=
setItems(items); &(,\~
setStartIndex(startIndex); ewd
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} mH\zSk
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publicList getItems(){ VOD-<
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return items; ~\(c;J*Ir
} [ne51F5_
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publicvoid setItems(List items){
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this.items = items; _|US`,kfc
} Ik^^8@z
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publicint getPageSize(){ 8<"g&+T
return pageSize; joskKik^
} W]/J]O6
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publicvoid setPageSize(int pageSize){ pC:YT/J
this.pageSize = pageSize; n[0u&m8
} ;>mM9^Jaf
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publicint getTotalCount(){ Ic4#Tk20i
return totalCount; `$Rgn3
} HghdTs
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publicvoid setTotalCount(int totalCount){ ^P@:CBO
if(totalCount > 0){ 'UhHcMh:
this.totalCount = totalCount; qr4 lr!#t
int count = totalCount / _|["}M"?
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pageSize; i*/i"W<
if(totalCount % pageSize > 0) ;ZUj2WxE
count++; }(8>&
indexes = newint[count]; "7y,d%H
for(int i = 0; i < count; i++){ *JDz0M4f
indexes = pageSize * 7qyPI
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} I3.. Yk%7
}else{ }},0#Ap
this.totalCount = 0; Rm=p}
} (a#gCG\
} %<-OdyM
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publicint[] getIndexes(){ 1l$C3c
return indexes; %4m Nk}tyH
} GqxnB k1
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publicvoid setIndexes(int[] indexes){ f2x!cL|Kx?
this.indexes = indexes; '27$x&6>S
} 5h/,*p6Nje
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publicint getStartIndex(){ )9"^ D
return startIndex; ^'E^*R
} FShjUl>mV
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publicvoid setStartIndex(int startIndex){ KV$&qM.
if(totalCount <= 0) 6=]Gom&S
this.startIndex = 0; K1hkOj;S
elseif(startIndex >= totalCount) +o`%7r(R
this.startIndex = indexes {WV"]O8IV
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[indexes.length - 1]; j7Fb4;o{
elseif(startIndex < 0) ~Pw9[ycn3
this.startIndex = 0; \ji\r ]k
else{ *|Vf1R]
this.startIndex = indexes Fge%6hu
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[startIndex / pageSize]; )nO ^Ay
} }R<t=):
} `B@eeXa;u
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publicint getNextIndex(){ Jm<NDE~rw
int nextIndex = getStartIndex() + iSO xQ
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pageSize; < 8'
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if(nextIndex >= totalCount) r1< 'l
return getStartIndex(); ybiTWM
else 7JBs7LG
return nextIndex; aC[G_ACwc
} t$n Jmfzm
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publicint getPreviousIndex(){ m@XX2l9:9
int previousIndex = getStartIndex() - ISC>]`
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pageSize; |1!fuB A
if(previousIndex < 0) `.J)Z=o
return0; ,5 ka{Q`K
else B1_9l3RM
return previousIndex; gZtQtFi
} IrL7%?
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} HNS^:XR
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抽象业务类 n{!{,s
java代码: qI9j=4s.
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/** ;)FvTm'"\.
* Created on 2005-7-12 uSR%6=$
*/ bs|gQZG
package com.javaeye.common.business; }&=l)\e
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import java.io.Serializable; VYb,Hmm>kC
import java.util.List; Ld*Ds!*'/
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import org.hibernate.Criteria; 4j3_OUwWZx
import org.hibernate.HibernateException; ivgX o'=
import org.hibernate.Session; I[&x-}w
import org.hibernate.criterion.DetachedCriteria; M
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import org.hibernate.criterion.Projections; n R, QG8
import
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org.springframework.orm.hibernate3.HibernateCallback; 6<W^T9}v@/
import h>!h|Ma
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org.springframework.orm.hibernate3.support.HibernateDaoS A[m?^vk q
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upport; Ne+Rs+~4
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import com.javaeye.common.util.PaginationSupport; vxPE=!|
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public abstract class AbstractManager extends @I4HpY7:
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HibernateDaoSupport { LAc60^t1
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privateboolean cacheQueries = false; zqj|$YNC
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privateString queryCacheRegion;
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publicvoid setCacheQueries(boolean poafGoH-Y
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cacheQueries){ uB"B{:Kz
this.cacheQueries = cacheQueries; 1;~sNSTo
} W^3 Jg2gE
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publicvoid setQueryCacheRegion(String q0%QMut%
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queryCacheRegion){ =M?+KbTJ3
this.queryCacheRegion = }R+#>P
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queryCacheRegion; q'S[TFMNE
} $)*qoV
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publicvoid save(finalObject entity){ | t:UpP
getHibernateTemplate().save(entity);
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} RDSC @3%
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publicvoid persist(finalObject entity){ tb?TPd-OY
getHibernateTemplate().save(entity); @:w^j0+h
} -`5]%.E&8
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publicvoid update(finalObject entity){ ^/?7hbr
getHibernateTemplate().update(entity); |s/Kb]t
} rEp\ld
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publicvoid delete(finalObject entity){ *P\lzM
getHibernateTemplate().delete(entity); Zq33R`
} ,1 H|{ <
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publicObject load(finalClass entity, &I
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finalSerializable id){ ?;Sg,.J
return getHibernateTemplate().load IY.M#Q]
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(entity, id); /Zs_G=\>
} &zgliT!If
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publicObject get(finalClass entity, 7@ONCG
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finalSerializable id){ , SUx!o
return getHibernateTemplate().get l$!ExXEZO;
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(entity, id); fCu;n%
} T0fm6
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publicList findAll(finalClass entity){ 9?sY!gXc
return getHibernateTemplate().find("from p/0dtnXa(
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" + entity.getName()); N68]r3/K
} V1Ft3Msq
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publicList findByNamedQuery(finalString ,^
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namedQuery){ B7qi|Fw
return getHibernateTemplate SD~4CtlfI
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().findByNamedQuery(namedQuery); %Qj$@.*:
} 8[@Y`j8
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publicList findByNamedQuery(finalString query, J0bcW25
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finalObject parameter){ )/!HI0TU
return getHibernateTemplate DJdhOLx
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().findByNamedQuery(query, parameter); HqqMX`Rof
}
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publicList findByNamedQuery(finalString query, i0\]^F
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finalObject[] parameters){ ZX-A}
return getHibernateTemplate {7X9P<<L7
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().findByNamedQuery(query, parameters); ' p!&&.%
} 4+>~Ui_#
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publicList find(finalString query){ o4a@{nt^,
return getHibernateTemplate().find !+Cc^{
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(query); R'F \9eyA
} -{A64gfFxT
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publicList find(finalString query, finalObject e
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parameter){ qMVuBv
return getHibernateTemplate().find LhF;A~L
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(query, parameter); ulg= ,+%r
} 3^H-,b0^
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public PaginationSupport findPageByCriteria w=nS*Qy2
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(final DetachedCriteria detachedCriteria){ H_8PK$c;
return findPageByCriteria s 64@<oU<"
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