Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ]s_BOt
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 fl9J
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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 M\9p-%"L
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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 ]\R%@FCYc
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分页支持类: W{'tS{
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java代码: !Ys.KDL
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package com.javaeye.common.util; ;(Qm<JAa
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import java.util.List; _EZrZB
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publicclass PaginationSupport { a
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publicfinalstaticint PAGESIZE = 30; ;fDs9=3#
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privateint pageSize = PAGESIZE; D(S^g+rd
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privateList items; B8G1
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privateint totalCount; ?To r)>A'
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privateint[] indexes = newint[0]; #PRkqg+|
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privateint startIndex = 0; D7x"P-ie
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public PaginationSupport(List items, int !n/"39KT
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totalCount){ d1>Nn!m
setPageSize(PAGESIZE); MY}B)`yx=
setTotalCount(totalCount); ;/Dp
setItems(items); DPZG_{3D
setStartIndex(0); 5 eWGX
} oos7x6
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public PaginationSupport(List items, int t/aT
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totalCount, int startIndex){ !8O*)=RA
setPageSize(PAGESIZE); 8FThu[
setTotalCount(totalCount); TM|ycS'
setItems(items); Wf=D'6w
setStartIndex(startIndex); 5l"v:Px
} |^i+Srh
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public PaginationSupport(List items, int 0)'^vJe
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totalCount, int pageSize, int startIndex){ O?9&6x
setPageSize(pageSize); PSQ5/l?\>
setTotalCount(totalCount); tQ:)j^\
setItems(items); 1/YWDxo,
setStartIndex(startIndex); l(@UpV-
} O#E]a<N`
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publicList getItems(){ (JHL0Z/
return items; [ENm(e$sI
} g,!6,v@
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publicvoid setItems(List items){ &JM|u ww?1
this.items = items; #AzZ4<;7
} S3u>a\
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publicint getPageSize(){ %11&8Fp1s
return pageSize; Bg*Oj)NM
} bBBW7',[a
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publicvoid setPageSize(int pageSize){ QcGyuS.B
this.pageSize = pageSize; c@%:aiEl
} O<Rm9tZ8
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publicint getTotalCount(){ 0Kxc$c
return totalCount; lz?F ,].
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publicvoid setTotalCount(int totalCount){ iw <2|]>l
if(totalCount > 0){ TpLlbsd
this.totalCount = totalCount; xioL6^(Qk,
int count = totalCount / _Kg:jal
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pageSize; Q=[AP+
if(totalCount % pageSize > 0) .olDmFQD
count++; /pZ]:.A
indexes = newint[count]; 4i>sOP3
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for(int i = 0; i < count; i++){ c8I :
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indexes = pageSize * [!B($c|\
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this.totalCount = 0; :gMcl"t--
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} A`x_M!m
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publicint[] getIndexes(){ 8y5iT?.~vy
return indexes; 3VZeUOxY\W
} s*.CJ
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publicvoid setIndexes(int[] indexes){ kGsd3t!'
this.indexes = indexes; ,C%fA>?UF8
} hm"i\JZ3N
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publicint getStartIndex(){ [m3[plwe
return startIndex; 1'wwwxe7
} rcUXYJCh-
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publicvoid setStartIndex(int startIndex){ (he cvJ
if(totalCount <= 0) 7/nnl0u8
this.startIndex = 0; dYdZt<6W<(
elseif(startIndex >= totalCount) &L[oQni];2
this.startIndex = indexes ],l
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[indexes.length - 1]; E^z\b *
elseif(startIndex < 0) B -XM(Cj
this.startIndex = 0; X_yAx)Do
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this.startIndex = indexes qP6Yn JWl
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} n#,<-Rb-
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publicint getNextIndex(){ VhdMKq~`
int nextIndex = getStartIndex() + $89hkUuTu^
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if(nextIndex >= totalCount) ~Pq(Ta
return getStartIndex(); ts
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else Hgs=qH
return nextIndex; ^MJT lRUb
} (#6E{@eq
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publicint getPreviousIndex(){ Sn 3@+9J
int previousIndex = getStartIndex() - W\xM$#)m
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if(previousIndex < 0) ,0ZkE}<=w
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else @@$%+XNY
return previousIndex; -oGJPl {r
} UO%VuC5B
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} ;DWtCtD
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抽象业务类 &mebpEHUG7
java代码: Op] L#<&T
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/** HA}pr6Z
* Created on 2005-7-12 )*&I|L<1
*/ #@h3#IC
package com.javaeye.common.business; (GnwK1f
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import java.io.Serializable; JI1O(
import java.util.List; o* qF"xG
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import org.hibernate.Criteria; W?W vT`
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import org.hibernate.HibernateException; VKa-
import org.hibernate.Session; \L14rQ
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import org.hibernate.criterion.DetachedCriteria; H]:z:AAvX
import org.hibernate.criterion.Projections; _E({!t"`
import ,l[h9J
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org.springframework.orm.hibernate3.HibernateCallback; 79J@`
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org.springframework.orm.hibernate3.support.HibernateDaoS LM_/:
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import com.javaeye.common.util.PaginationSupport; ;d17xu?ks
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public abstract class AbstractManager extends j[/'`1tOe
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HibernateDaoSupport { hv xvwV1
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privateboolean cacheQueries = false; %9|=\#
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privateString queryCacheRegion; jjgY4<n
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publicvoid setCacheQueries(boolean m,nV,}@J
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cacheQueries){ eK"B.q7
this.cacheQueries = cacheQueries; +NRn>1]
} 0D1yG(ck
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publicvoid setQueryCacheRegion(String 4%WV)lt
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queryCacheRegion){ 1r}fnT<
this.queryCacheRegion = T6f{'.w
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queryCacheRegion; 7p}G!]`
} r;w_B%9
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publicvoid save(finalObject entity){ >Uvtsj#
getHibernateTemplate().save(entity); :=04_5 z
} "fLGXbNQ
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publicvoid persist(finalObject entity){ 4 'rWy~`
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getHibernateTemplate().save(entity);
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} sZ-]yr\E"
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publicvoid update(finalObject entity){ mM~!68lR
getHibernateTemplate().update(entity); +7<{yP6wU
} L{2\NJ"+u
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publicvoid delete(finalObject entity){ TMG:fg&E~
getHibernateTemplate().delete(entity); #RJy
} ~0?p @8
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publicObject load(finalClass entity, "}K/ b
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finalSerializable id){ }Iub{30mp
return getHibernateTemplate().load 8BNsh[+
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(entity, id); sVkR7
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publicObject get(finalClass entity, [RD ^@~x
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finalSerializable id){ Hi|2z5=V
return getHibernateTemplate().get <Xy8}Z`s
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(entity, id); QAi(uL5
} Yx&cnDx
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publicList findAll(finalClass entity){ ,@='.Qs4g
return getHibernateTemplate().find("from `#fOY$#XB
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} +nuv?QB/
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publicList findByNamedQuery(finalString w#F+rh3
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namedQuery){ d?N"NqaN
return getHibernateTemplate &;)~bS(
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().findByNamedQuery(namedQuery); cYR6+PKua
} />ob*sk/Y
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publicList findByNamedQuery(finalString query, IU$bP#<
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finalObject parameter){ Y ga}8DU
return getHibernateTemplate o95O!5 hl
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().findByNamedQuery(query, parameter); Ysr{1! K
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publicList findByNamedQuery(finalString query, tMAa$XrZj
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finalObject[] parameters){ W77JXD93
return getHibernateTemplate :ZL>JVk
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().findByNamedQuery(query, parameters); s`#hk^{
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publicList find(finalString query){ )D[ypuM&
return getHibernateTemplate().find LpmspIPvf
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(query); g u|;C
} ESomw
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