Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 GC:q6}
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 BM'!odRv
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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 hGkJ$QT
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 5VJe6i9;
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分页支持类: 5dB62dqN
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java代码: R3;%eyu
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package com.javaeye.common.util; a{.q/Tbt
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import java.util.List; x Ek8oc
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publicclass PaginationSupport { A&bj l[s
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publicfinalstaticint PAGESIZE = 30; 9 @xl{S-
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privateint pageSize = PAGESIZE; J|].h
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privateList items; (
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privateint totalCount; U(9_&sL
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privateint[] indexes = newint[0]; p |1u,N
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privateint startIndex = 0; P/dnH
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public PaginationSupport(List items, int c~?Zmdn:
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totalCount){ Be=rBrI>
setPageSize(PAGESIZE); 8M@'A5]
setTotalCount(totalCount); f+Sb>$
setItems(items); zD79 M
setStartIndex(0); p*&0d@'r
} qS2Nk.e]o
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public PaginationSupport(List items, int k%sH0 9
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totalCount, int startIndex){ P=5+I+
setPageSize(PAGESIZE); ANy*'/f
setTotalCount(totalCount); >
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setItems(items); NOuG# P
setStartIndex(startIndex); L]|mWyzT
} :t]HY2
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public PaginationSupport(List items, int e[fOm0^.c
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totalCount, int pageSize, int startIndex){ L"NHr~
setPageSize(pageSize); m&Mupl
setTotalCount(totalCount); Ch_rV+
setItems(items); jk{(o09
setStartIndex(startIndex); %)x9u$4W2
} <aJQV)]\
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publicList getItems(){ 67YC;J]n=z
return items; sa(.Anmlj
} `;E/\eG"
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publicvoid setItems(List items){ LmePJ
this.items = items; AO$AT_s
} S@FO&o 0
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publicint getPageSize(){ 4=xi)qF/@
return pageSize; !qj[$x-ns
} 9)ALJd,M
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publicvoid setPageSize(int pageSize){ ]~KLdgru_
this.pageSize = pageSize; Jpj=d@Of70
} #_@cI(P
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publicint getTotalCount(){ xi=ApwNj
return totalCount; H<Oo./8+
} _*fNa!@hY
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publicvoid setTotalCount(int totalCount){ L^3&
if(totalCount > 0){ /i'078F
this.totalCount = totalCount; ,erf{"Nh
int count = totalCount / 0jf6 z-4
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pageSize; :oP LluW*
if(totalCount % pageSize > 0) c+9L6}D
count++; 6<._^hyq
indexes = newint[count]; "6$V1B0KW
for(int i = 0; i < count; i++){ MC}t8L=
indexes = pageSize * @1JwjtNk
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} d,V#5l-6
}else{ 4Z( #;9f
this.totalCount = 0; :$MOdL[ir
} GiV%Hcx
} 6Dlm.~G
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publicint[] getIndexes(){ 9CY{}g
return indexes; #) aLD0p
} $*fJKR_N
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publicvoid setIndexes(int[] indexes){ /SD}`GxH
this.indexes = indexes; ,^UqE{
} ,#A(I#wL~
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publicint getStartIndex(){ Ke\\B o,
return startIndex; AK2Gm-hHK
} 6pt_cpbR
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publicvoid setStartIndex(int startIndex){ bbK};u
if(totalCount <= 0) WQK<z!W5
this.startIndex = 0; m+kP"]v
elseif(startIndex >= totalCount) r]DiB:.
this.startIndex = indexes }TmOoi(X@
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[indexes.length - 1]; .f\LzZ-I:
elseif(startIndex < 0) .Pc>1#z&[
this.startIndex = 0; 21uK&nVf^l
else{ ~s!Q0G^G
this.startIndex = indexes )'_[R@ThB
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[startIndex / pageSize]; rs&]46i/p
} *@2Bh4
} VY0.]t
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publicint getNextIndex(){ za>UE,?h
int nextIndex = getStartIndex() + 2/LSB8n|
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pageSize; H U|.5tP
if(nextIndex >= totalCount) -@W9+Zf5
return getStartIndex(); ,fkvvM{mq
else Td=4V,BN
return nextIndex; -8TJ:#|N
} #~*v##^vFH
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publicint getPreviousIndex(){ [GLH8R
int previousIndex = getStartIndex() - BG>Y[u\N
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pageSize; m>@hh#kBg
if(previousIndex < 0) AM}R#86
return0; *o6}>;
else e~o!Qm
return previousIndex; AjC:E+g
} ;[v!#+yml
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} V]=22Cxi'~
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抽象业务类 2"Os9 KD
java代码: oxwbq=a6yV
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/** /k#-OXP~
* Created on 2005-7-12 #@XBHJD\#
*/ 7aG.?Ca%
package com.javaeye.common.business; l& :EKh
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import java.io.Serializable; ( ;FxKm<P@
import java.util.List; DJP6Z
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import org.hibernate.Criteria; B VBn.ut
import org.hibernate.HibernateException; 8:ubtB
import org.hibernate.Session; S*h52li
import org.hibernate.criterion.DetachedCriteria; ?bTfQH
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import org.hibernate.criterion.Projections; jh5QIZf=
import 44]s`QyG
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org.springframework.orm.hibernate3.HibernateCallback; p~pD`'%
import (`x_MTLL
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org.springframework.orm.hibernate3.support.HibernateDaoS ( xs'D4
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upport; !ifU}qFzK
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import com.javaeye.common.util.PaginationSupport; MqyjTY::Xg
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public abstract class AbstractManager extends *}?[tR5
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HibernateDaoSupport { th?+TNb^
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privateboolean cacheQueries = false; E
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privateString queryCacheRegion; ^QK`z@B
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publicvoid setCacheQueries(boolean O[@!1SKT0
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cacheQueries){ mw@Pl\=
this.cacheQueries = cacheQueries; /]0qI
} nzq
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publicvoid setQueryCacheRegion(String
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queryCacheRegion){ BI'>\hX/V
this.queryCacheRegion = cc@W
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queryCacheRegion; u[>"_!T
} v88vr
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publicvoid save(finalObject entity){ ]a $6QS
getHibernateTemplate().save(entity); !Sc"V.o@!
} CSM"Kz`
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publicvoid persist(finalObject entity){ 6g(;2gY
getHibernateTemplate().save(entity); r`H}f#.KR
} c[dSO(=
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publicvoid update(finalObject entity){ ~q$]iwwqT
getHibernateTemplate().update(entity); S?J!.(
} KX)n+{
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publicvoid delete(finalObject entity){ /6x&%G:m#
getHibernateTemplate().delete(entity); *"%TAe7?~+
} !fh (k
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publicObject load(finalClass entity, uP~,]ci7
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finalSerializable id){ r- 8Awa
return getHibernateTemplate().load ^y+k6bE
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