Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ]B?M3`'>
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 U/^#nU.,
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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 ^n(FO,8c
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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 uVCH<6Cp
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分页支持类: BEvY&3%l
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java代码: X<$Tn60,
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package com.javaeye.common.util; Q_|}~4_+
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import java.util.List; C| ~A]wc=
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publicclass PaginationSupport { gTXpaB<
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publicfinalstaticint PAGESIZE = 30; abQ.N
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privateint pageSize = PAGESIZE; TZ5TkE;1
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privateList items; _&BK4?H@b
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privateint totalCount; WSu6chz)
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privateint[] indexes = newint[0]; Z%]K,9K
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privateint startIndex = 0; r|u[36NmA
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public PaginationSupport(List items, int jRU:un4
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totalCount){ N68$b#9Ry
setPageSize(PAGESIZE); k`8O/J
setTotalCount(totalCount); t4_yp_
setItems(items); B[GC@]HE
setStartIndex(0); J
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} KtL?,zi
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public PaginationSupport(List items, int EGUlLqP6e
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totalCount, int startIndex){ ]yf?i350
setPageSize(PAGESIZE); ]O"f %
setTotalCount(totalCount); 0N$7(.
setItems(items); .Rk8qRB
setStartIndex(startIndex); )bOfs*S
} DJ, LQj
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public PaginationSupport(List items, int 0w3c8s.
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totalCount, int pageSize, int startIndex){ U.Mfu9}#:
setPageSize(pageSize); O D}RnKL
setTotalCount(totalCount); K>$f#^
setItems(items); o{sv<$
setStartIndex(startIndex); x950,`zy
} gM3:J:N
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publicList getItems(){ 2F:qaz
return items; mZR3Hl$
} Q6qW?*Y
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publicvoid setItems(List items){ *vD.\e~
this.items = items; 0hemXvv1
} A9MM^jV8
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publicint getPageSize(){ -eG~
return pageSize; N; g@lyo
} b"h'7 C/
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publicvoid setPageSize(int pageSize){ k XSX<b <%
this.pageSize = pageSize; b5NVQ8Mq
} 7=CkZ&(?
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publicint getTotalCount(){ S\A/*!%~y
return totalCount; R@o&c%K"
} xqG<R5k>>
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publicvoid setTotalCount(int totalCount){ MUrPr
if(totalCount > 0){ &?@C^0&QV
this.totalCount = totalCount; j7~FR{:j
int count = totalCount / FH~:&;
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pageSize; bF"l0
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if(totalCount % pageSize > 0) `6U!\D
count++; ` =>}*GS
indexes = newint[count]; M13HD/~O
for(int i = 0; i < count; i++){ VzP az\e
indexes = pageSize * 3kn-tM
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} <Y]LY_(
}else{ = s&Rk~2b/
this.totalCount = 0; xa~]t<2
} +hyOc|5
} ^m qEKy<
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publicint[] getIndexes(){ EwP2,$;
return indexes; 'UX.Q7W
} OIcXelS:@k
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publicvoid setIndexes(int[] indexes){ #a8kA"X
this.indexes = indexes; .IeO+RDQ
} bKQho31a'
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publicint getStartIndex(){ >+2&7u
return startIndex; jf9+H!?^N
} y{ur'**l
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publicvoid setStartIndex(int startIndex){ N,(!
if(totalCount <= 0) :X0L6y)u
this.startIndex = 0; p`"k=tZ{
elseif(startIndex >= totalCount) aB,-E>+
this.startIndex = indexes 5'zXCHt
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[indexes.length - 1]; U$OZkHA[
elseif(startIndex < 0) 39X~<\&'
this.startIndex = 0; R;< q<i_l
else{ J&xZN8jW
this.startIndex = indexes .GrOdDK$ns
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[startIndex / pageSize]; Un6R)MVT
} 2JfSi2T
} n7Ao.b%uk-
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publicint getNextIndex(){ 9d5$cV
int nextIndex = getStartIndex() + q/i2o[f'n
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pageSize; -#v~;Ci
if(nextIndex >= totalCount) Vb0T)C
return getStartIndex(); y9:4n1fg
else Tgdy;?
return nextIndex; -k'<6op
} G@8)3 @
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publicint getPreviousIndex(){ (80m'.X
int previousIndex = getStartIndex() - s0SzO,Vi
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pageSize; ?
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if(previousIndex < 0) ]E`<8hRB
return0; Pe,>ny^J1
else J@3,
return previousIndex; GY~$<^AK
} zx.qN
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} U+S=MP
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抽象业务类 fQ<sq0'e\
java代码: RZa/la*
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/** <FT7QO$I
* Created on 2005-7-12 yJA~4
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package com.javaeye.common.business; S$mv(C
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import java.io.Serializable; ;+Jx,{)
import java.util.List; 0Hnj<| HL
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import org.hibernate.Criteria; 1.3#PdMR,
import org.hibernate.HibernateException; q
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import org.hibernate.Session; M:+CW;||!
import org.hibernate.criterion.DetachedCriteria; ,-UF5U
import org.hibernate.criterion.Projections; KOcB#UHJ
import Bkcwl
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org.springframework.orm.hibernate3.HibernateCallback; ^m\o(R
import Kd\0nf6
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org.springframework.orm.hibernate3.support.HibernateDaoS j\y;~
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upport; @C;1e7
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import com.javaeye.common.util.PaginationSupport; opcanl9pSW
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public abstract class AbstractManager extends '/\
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HibernateDaoSupport { 1T^WMn:U
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privateboolean cacheQueries = false; -]N2V'QB
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privateString queryCacheRegion; 6= ?0&Bx&
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publicvoid setCacheQueries(boolean 2#wnJdr6E
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cacheQueries){ w\buQ6pR)
this.cacheQueries = cacheQueries; B,>02EZ
} V DFgu
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publicvoid setQueryCacheRegion(String !:(+#
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queryCacheRegion){ ~D52b1f
this.queryCacheRegion = P\U<,f
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queryCacheRegion; |#Gxqq'
} -gn0@hS0
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publicvoid save(finalObject entity){ +B? qx
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getHibernateTemplate().save(entity); ?ANWI8'_j
} ~f<']zXv
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publicvoid persist(finalObject entity){ [ 8Ohg
getHibernateTemplate().save(entity); $>rt0LOF
} mGT('iTM4
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publicvoid update(finalObject entity){ 9{Hs1MD[
getHibernateTemplate().update(entity); l+ }=D@l
} f:;-ZkIU ?
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publicvoid delete(finalObject entity){ G]lGoa}]`u
getHibernateTemplate().delete(entity); w2LnY1A
} osp~)icun
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publicObject load(finalClass entity, }">r0v!3
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finalSerializable id){ VU3RFl
return getHibernateTemplate().load HE}0_x.
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(entity, id); Xaz "!
} [4Q;(67
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publicObject get(finalClass entity, Qz(D1>5I?
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finalSerializable id){ 8JLf @C:
return getHibernateTemplate().get J0sD?V|{1~
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(entity, id); @@Ib^sB%
} ?9 huuJs7
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publicList findAll(finalClass entity){ 91R#/i
return getHibernateTemplate().find("from YidcV lOsO
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" + entity.getName()); O8;/oL4 U
} 9o@3$
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publicList findByNamedQuery(finalString )%C.IZ_s2
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namedQuery){ I;4quFBlMu
return getHibernateTemplate gawY{Jr8I
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().findByNamedQuery(namedQuery); Y9.3`VX
} 2Zu9?
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publicList findByNamedQuery(finalString query, {"o9pIh{~
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finalObject parameter){ ]d*9@+Iu
return getHibernateTemplate oW~W(h!
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().findByNamedQuery(query, parameter); F^l1WX6
} gT}H B.
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publicList findByNamedQuery(finalString query, {B$CqsvJ
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finalObject[] parameters){ 7L~*%j
return getHibernateTemplate :WB uU
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().findByNamedQuery(query, parameters); zs=3e~o3
} %&L13:
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publicList find(finalString query){ ! ._q8q\
return getHibernateTemplate().find &}DfIP<
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(query); .}__XWK5
} 2ZK]}&yC
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publicList find(finalString query, finalObject p?gm=b#
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parameter){ J|WE&5'
return getHibernateTemplate().find +n1!xv]
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(query, parameter); R ]Ev=V'U
} fe\lSGmf
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