Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 YO.ddy*59
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 v#9i|
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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 e2%mD.I
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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 @@3NSKA
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分页支持类: wg
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java代码: #3>jgluM'
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package com.javaeye.common.util; c=-qbG0`
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import java.util.List; lt'N{LFvc
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publicclass PaginationSupport { a$iDn_{
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publicfinalstaticint PAGESIZE = 30; $qpW?<>,0
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privateint pageSize = PAGESIZE; 1#|lt\T
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privateList items; 6 %` h2Z
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privateint totalCount; ^\S~rW.3_
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privateint[] indexes = newint[0]; Y#P!<Q>}
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privateint startIndex = 0; @d8Nr:
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public PaginationSupport(List items, int Te3 ?z
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totalCount){ Tqs|2at<t
setPageSize(PAGESIZE); k:mW ,s|a
setTotalCount(totalCount); Aj/EaIq
setItems(items); IW}Wt{'m
setStartIndex(0); }0/l48G
} g%)cyri
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public PaginationSupport(List items, int B<.ZW}#v
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totalCount, int startIndex){ RA){\~@wC
setPageSize(PAGESIZE); _$vbb#QXZG
setTotalCount(totalCount); g&_f%hx?
setItems(items); O"X7 DgbC
setStartIndex(startIndex); y\9#"=+
} "2tKh!?Q
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public PaginationSupport(List items, int ,CB E&g
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totalCount, int pageSize, int startIndex){ }:s.m8LC5n
setPageSize(pageSize); y\:Ma7V
setTotalCount(totalCount); qd'Z|'j
setItems(items); Qip@L WvT
setStartIndex(startIndex); m,5?|J=
} #7YJ87<E
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publicList getItems(){ `O%O[
return items; JZ>
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} (*T$:/zIS
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publicvoid setItems(List items){ l?xd3Z@7[
this.items = items; rzvKvGd#N
} alsD TQ'
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publicint getPageSize(){ {=U*!`D
return pageSize; :N_DJ51
} 00r7trZW^
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publicvoid setPageSize(int pageSize){ &2ty++gC
this.pageSize = pageSize;
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} +A$>F@u
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publicint getTotalCount(){ aej'c bO
return totalCount; e:rbyzf#
} rJRg4Rog
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publicvoid setTotalCount(int totalCount){ LEX @hkh
if(totalCount > 0){ {/,AMJ<:G]
this.totalCount = totalCount; 1FT3d
int count = totalCount / Tgbq4xR(
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pageSize; )dJx82"
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if(totalCount % pageSize > 0) k7cY^&o
count++; vWa\8y f
indexes = newint[count]; &$l#0?Kc^
for(int i = 0; i < count; i++){ >
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indexes = pageSize * 59+KOQul6
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}else{ P^<to(|
this.totalCount = 0; ~sq@^<M)s
} Qam48XZ >
} t-<BRnxhE
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publicint[] getIndexes(){ @S>;t)\J
return indexes; OEC/'QOae
} MpIiHKQ
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publicvoid setIndexes(int[] indexes){ i` ay9J8N
this.indexes = indexes; 4GXS(
} sNP
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publicint getStartIndex(){ f/iMI)J
return startIndex; 3=*ur( Qy
} cL~YQJYp
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publicvoid setStartIndex(int startIndex){ -*Th=B-
if(totalCount <= 0) Ps[#z@5{x
this.startIndex = 0; )+w1nw|m
elseif(startIndex >= totalCount) =);@<Jp
this.startIndex = indexes ZE~zs~z|
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[indexes.length - 1]; UP%6s:>:
elseif(startIndex < 0) evNe6J3
this.startIndex = 0; O}p<"3Ub
else{ ~P;A
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this.startIndex = indexes 7q5*grm
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[startIndex / pageSize]; j-DWz>x
} Vo6g /h?`
} fGRV]6?V
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publicint getNextIndex(){ W8;!rFW
int nextIndex = getStartIndex() + XrWWV2[
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pageSize; xgpf2y!{
if(nextIndex >= totalCount) Kr `/sWZ
return getStartIndex(); F[`dX
else bS954d/
return nextIndex; V*@Y9G
} GNq
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publicint getPreviousIndex(){ Jmi,;Af'/
int previousIndex = getStartIndex() - {<Gp5j
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pageSize; 5,g +OY=\
if(previousIndex < 0) )5gj0#|CG@
return0; $(]nl%<Q
else SY%y *6[6
return previousIndex; h:r?:C>n
} CH
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} 6N5(DD
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抽象业务类 "42/P4:
java代码: :zPK
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/** wWiYxBeN
* Created on 2005-7-12 p'1/J:EnV
*/ g= Vu'p 3u
package com.javaeye.common.business; x3+{Y
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import java.io.Serializable; 7bihP@I!
import java.util.List; f:<BUqa
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import org.hibernate.Criteria; "QxULiw
import org.hibernate.HibernateException; /#H P;>!n
import org.hibernate.Session; #?jsC)
import org.hibernate.criterion.DetachedCriteria; #~"IlBk\
import org.hibernate.criterion.Projections; VN!nef
import 9Ffam#
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org.springframework.orm.hibernate3.HibernateCallback; -P/DmSS8V
import X3kFJ{
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org.springframework.orm.hibernate3.support.HibernateDaoS 1BU97!
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upport; to</
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import com.javaeye.common.util.PaginationSupport; ]Z8u0YtM)
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public abstract class AbstractManager extends :VZS7$5
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HibernateDaoSupport { !ZH "$m|
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privateboolean cacheQueries = false; xL"J?Gy
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privateString queryCacheRegion; phjM(lmCo
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publicvoid setCacheQueries(boolean 0lg'QG>
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cacheQueries){ o?>0WSLlm
this.cacheQueries = cacheQueries; @tm2Y%Y!
} *m+FMyr
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publicvoid setQueryCacheRegion(String %"A8Af**I
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queryCacheRegion){ -@"3`uv"
this.queryCacheRegion = >B**fZ~L
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queryCacheRegion; '`k7l7I[@
} lt6wmCe
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publicvoid save(finalObject entity){ NeY*l
getHibernateTemplate().save(entity); y,x 2f%x
} B+Qf?1f
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publicvoid persist(finalObject entity){ L{%L*z9J
getHibernateTemplate().save(entity); Q^2dZXk~
} k4LrUd
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publicvoid update(finalObject entity){ 7wh4~
getHibernateTemplate().update(entity); |> STb\
} 2{b/*w
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publicvoid delete(finalObject entity){ SED52$zA
getHibernateTemplate().delete(entity); )
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} w gS'/
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publicObject load(finalClass entity, azv173XZ
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finalSerializable id){ >o1dc*
return getHibernateTemplate().load d9v66mpJM
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(entity, id); I~n4}}9M
} O00;0w u
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publicObject get(finalClass entity, MQwxQ{
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finalSerializable id){ D2&d",%&f
return getHibernateTemplate().get n<8WjrK
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(entity, id); !lNyoX/
} ny13+Q`^
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publicList findAll(finalClass entity){ <WIIurp
return getHibernateTemplate().find("from hc
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" + entity.getName()); no<$=(11i
} d|RUxNjM-J
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publicList findByNamedQuery(finalString *G.vY#h
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namedQuery){ @h|qL-:!vG
return getHibernateTemplate >p-UQc
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().findByNamedQuery(namedQuery); B.G6vx4yp
} 4aOz=/x2
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publicList findByNamedQuery(finalString query, fVn4=d6X
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finalObject parameter){ F@Sk=l(
return getHibernateTemplate j<(E%KN3
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().findByNamedQuery(query, parameter); Jd7chIK
} A^z{n/DiL
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publicList findByNamedQuery(finalString query, |-V:#1wR.]
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finalObject[] parameters){ Kc\8GkdB
return getHibernateTemplate a4ViVy
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