Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 R,Fgl2
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 WULAty
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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 ZjD)?4
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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 v^SsoX>WMH
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分页支持类: "_< 9PM1t
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java代码: >;4!O%F
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package com.javaeye.common.util; NvJV</l6A
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import java.util.List; 0(y:$
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publicclass PaginationSupport { +;Cr];b3
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publicfinalstaticint PAGESIZE = 30; mnjs(x<m
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privateint pageSize = PAGESIZE; 2-dh;[4
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privateList items; kz B\'m,l
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privateint totalCount; c.%.\al8oW
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privateint[] indexes = newint[0]; M;jcUX_{
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privateint startIndex = 0; B=n[)"5fBO
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public PaginationSupport(List items, int s5D:
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totalCount){ qMP1k7uG)
setPageSize(PAGESIZE); G.\l qYrXU
setTotalCount(totalCount); 6w|J-{2
setItems(items); PFrfd_s{>\
setStartIndex(0); ]$A(9Pn"
} ~#PLAP3-
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public PaginationSupport(List items, int !'G~k+
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totalCount, int startIndex){ ,LhCFw{8?~
setPageSize(PAGESIZE); f>polxB%N
setTotalCount(totalCount); Kj3?ve~
setItems(items); $s-Y%gc
setStartIndex(startIndex); PuL<^aJ
} Z=?aEU$7
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public PaginationSupport(List items, int 0 1V^L}
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totalCount, int pageSize, int startIndex){ V}WB*bE
setPageSize(pageSize); Bv6K$4
setTotalCount(totalCount); lg$zGa?
setItems(items); d0'HDVd
setStartIndex(startIndex); <S?#@F\"S
} [?k8}B)mHB
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publicList getItems(){ @7oL#-
return items; l Dxc`S
} -0C@hM,wm
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publicvoid setItems(List items){ T-_"|-k}P%
this.items = items; =(HeF.!
}
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publicint getPageSize(){ c{3wk7
return pageSize; Jh&~ToF!
} qS|\JG
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publicvoid setPageSize(int pageSize){ QHq,/kWY
this.pageSize = pageSize; 72W
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} zfA
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publicint getTotalCount(){ {)8>jxQN
return totalCount; eW J`$"z
} *{
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publicvoid setTotalCount(int totalCount){ Jl3g{a
if(totalCount > 0){ 'cix`l|^
this.totalCount = totalCount; kF"@Ngv.
int count = totalCount / n+;6=1d7ZW
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pageSize; q
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if(totalCount % pageSize > 0) )3Z ^h<"j
count++; Ej".axjT
indexes = newint[count]; W2FD+ wt
for(int i = 0; i < count; i++){ <r#eL39I
indexes = pageSize * Vw|| !d
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} pi<TFe@eG
}else{ anMF-x4/*q
this.totalCount = 0; j)C,%Ol
} H,nec<Jp
} o%9*B%HO/
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publicint[] getIndexes(){ {!t7[Ctb
return indexes; eq(am%3~
} fk1ASV<rN
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publicvoid setIndexes(int[] indexes){ '(bgs
this.indexes = indexes; ?T9(Vw
} .sC?7O=
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publicint getStartIndex(){ .qMOGbd?
return startIndex; 3b' QLfU
} gL_Y,A~Q{
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publicvoid setStartIndex(int startIndex){ ;s`sn$@
if(totalCount <= 0) ^?7`;/
this.startIndex = 0; ;r_F[E2z
elseif(startIndex >= totalCount) Dn&D!B
this.startIndex = indexes @=}YTtq
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[indexes.length - 1]; W`\R%>$H
elseif(startIndex < 0) C{gyj}5
this.startIndex = 0; v\m ]A1
else{ =R*qP ;#
this.startIndex = indexes 79`AM
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[startIndex / pageSize]; ^6_e=jIN
} UfN&v >8f
} Ag{iq(X
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publicint getNextIndex(){ J5^'HU3
int nextIndex = getStartIndex() + &boOtl^
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pageSize; Y. ,Kl~
if(nextIndex >= totalCount) sZx/Ee
return getStartIndex(); *h}XWB C1q
else }ZYv~E'
return nextIndex; gw,UQbnu
} b0lq\9
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publicint getPreviousIndex(){ \v'p/G)g
int previousIndex = getStartIndex() - !%"8|)CAr
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pageSize; G6T_O
if(previousIndex < 0) xuqv6b.
return0; a)wJT`xu
else .zi_[
return previousIndex; o4|M0
} E[/\7v\
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} RhncBKm*M
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抽象业务类 ^s|6vd;PD=
java代码: Pi]19boM.
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/** a!=D [Gz*5
* Created on 2005-7-12 BO;6
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*/ ;7}VBkH
package com.javaeye.common.business; Zl^\Q=*s
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import java.io.Serializable; r>o63Q:
import java.util.List; #"@|f
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import org.hibernate.Criteria; OCNQvF~
import org.hibernate.HibernateException; G"h'_7
import org.hibernate.Session; 03q5e
import org.hibernate.criterion.DetachedCriteria; <
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import org.hibernate.criterion.Projections;
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import I}1NB3>^
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org.springframework.orm.hibernate3.HibernateCallback; kM,C3x{A
import C{U?0!^
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org.springframework.orm.hibernate3.support.HibernateDaoS y*qVc E
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upport; hb}+A=A=+
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import com.javaeye.common.util.PaginationSupport; ;lE%M
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public abstract class AbstractManager extends ~"nxE
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HibernateDaoSupport { 'Gj3:-xqL
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privateboolean cacheQueries = false; RoPRQCE
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privateString queryCacheRegion; I>W=x'PkLn
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publicvoid setCacheQueries(boolean _852H$H\
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cacheQueries){ y3@H/U{
this.cacheQueries = cacheQueries; s~^5kgPA
} ;r<^a6B
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publicvoid setQueryCacheRegion(String IxY|>5z
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queryCacheRegion){ !2%HhiB'
this.queryCacheRegion = ,o86}6Ag
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queryCacheRegion; l9{hq/V
} GeH#I5y
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publicvoid save(finalObject entity){ 8\+uec]k
getHibernateTemplate().save(entity); H#,W5EJzM
} KcWN,!G
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publicvoid persist(finalObject entity){ *4\:8
getHibernateTemplate().save(entity); ua3~iQj-
} @>,^":`#
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publicvoid update(finalObject entity){ +r2+X:#~T
getHibernateTemplate().update(entity); ]d$8f
} "@V Y
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publicvoid delete(finalObject entity){ V?6a8lJ
getHibernateTemplate().delete(entity); ZMQZs~;~d
} gb[5&>(#
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publicObject load(finalClass entity, =^M/{51j
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finalSerializable id){ glO^yZ s
return getHibernateTemplate().load SW@$ci
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(entity, id); fK>L!=Q
} 1m4$ p2j
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publicObject get(finalClass entity, 'OITI TM
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finalSerializable id){ f,U.7E
return getHibernateTemplate().get UXJeAE-
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(entity, id); "q3ZWNS'w
} K@
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publicList findAll(finalClass entity){ ,0M_Bk"
return getHibernateTemplate().find("from V(H1q`ao9
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" + entity.getName()); f z'@_4hg
} LBw1g<&
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publicList findByNamedQuery(finalString I ce~oz)
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namedQuery){ l!D}3jD
return getHibernateTemplate ~[t[y~Hup
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().findByNamedQuery(namedQuery); h79}qU
} yb<fpM
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publicList findByNamedQuery(finalString query, 5AFJC?
is?{MJZ_
finalObject parameter){ pC#E_*49
return getHibernateTemplate \"7*{L:
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