Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ^q|W@uG-(
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 ;R@D
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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 2^r J|Ni
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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 pWH,nn?w.
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分页支持类: LEX @hkh
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java代码: 2,|;qFJY-@
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package com.javaeye.common.util; h7o.RRhK
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import java.util.List; Nn U`u.$D
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publicclass PaginationSupport { % w
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publicfinalstaticint PAGESIZE = 30; n@q-f-2
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privateint pageSize = PAGESIZE; M0KU}h
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privateList items; k;qWiYMV
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privateint totalCount; L9F71bs59
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privateint[] indexes = newint[0]; "I9 r>=
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privateint startIndex = 0; lJT"aXt'M
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public PaginationSupport(List items, int ,g,Hb\_R)
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totalCount){ ovDPnf(
setPageSize(PAGESIZE); p(Osz7K
setTotalCount(totalCount); 2Vw2r@S/
setItems(items); ,*?[Rg0]+
setStartIndex(0); /{W6]6^
} ibG>|hV
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public PaginationSupport(List items, int >[~7fxjK-
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totalCount, int startIndex){ f$vTD ak
setPageSize(PAGESIZE); 8%xBSob{j
setTotalCount(totalCount); :M<] 6o
setItems(items); 8B5WbS fL^
setStartIndex(startIndex); GQQp(%T
} *JQ*$$5
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public PaginationSupport(List items, int Wcm8,?*
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totalCount, int pageSize, int startIndex){ (mKH,r
setPageSize(pageSize); Zj1bG{G=i
setTotalCount(totalCount); gU NWM^n
setItems(items); TU*EtE'g/
setStartIndex(startIndex); $em'H,*b3
} WIpV'F|t]`
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publicList getItems(){ 5NH4C
return items; PL3hrI 5
} G#^0Bh&
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publicvoid setItems(List items){ xgpf2y!{
this.items = items; nAAv42j[
} ;[(d=6{hc]
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publicint getPageSize(){ %\n|2*r
return pageSize; {IaDZ/XS6
} `(=Kp=b
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publicvoid setPageSize(int pageSize){ =6"5kz10
this.pageSize = pageSize; Eh|,[D!E
} o0|Ex\
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publicint getTotalCount(){ ={V@Y-5T
return totalCount; 5b*knN>
} SY%y *6[6
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publicvoid setTotalCount(int totalCount){ gZ7R^]
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if(totalCount > 0){ jlFlhj:/I
this.totalCount = totalCount; bv b\G
int count = totalCount / 0 yq
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pageSize; X;Sb^c"j1
if(totalCount % pageSize > 0) 1EEcNtpub]
count++; +A)>
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indexes = newint[count]; TjYHoL5
for(int i = 0; i < count; i++){ a !%,2|U
indexes = pageSize * q CYu@Ho
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i; $?bD55
} !2l2;?jM
}else{ O=(F46 M
this.totalCount = 0; H"6x/&s.=k
} *4}NLUVX
} nReld
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publicint[] getIndexes(){ dIlpo0; F
return indexes; /UK]lP^w]!
} dnU-v7k,{
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publicvoid setIndexes(int[] indexes){ ,f$P[c
this.indexes = indexes; L\:m)g,F.
} 40h$-
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publicint getStartIndex(){ kwc
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return startIndex; Opc szq5n
} 7Y(Dg`8G
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publicvoid setStartIndex(int startIndex){ ~$5XiY8A
if(totalCount <= 0) iC=>wrqY>
this.startIndex = 0; +KIz#uqF8Z
elseif(startIndex >= totalCount) @:GqOTN
this.startIndex = indexes OB$Jv<C@
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[indexes.length - 1]; wGKxT
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elseif(startIndex < 0) 8X"4RyNSn
this.startIndex = 0; cr{yy :D
else{ w|s2f`!
this.startIndex = indexes o&Xp%}TI
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[startIndex / pageSize]; aH'fAX0bF
} QhJN/v
} IONo&~-l
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publicint getNextIndex(){ \]]K{DO
int nextIndex = getStartIndex() + ]$r]GVeN}H
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pageSize; !~~KM?g
if(nextIndex >= totalCount) S*h^7?Bu
return getStartIndex(); x,25ROaHY
else N wk
return nextIndex; D5P-$1KPt
} O@a OKk
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publicint getPreviousIndex(){ Q!@M/@-Ky
int previousIndex = getStartIndex() - lt6wmCe
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pageSize; #&Tm%CvB
if(previousIndex < 0) E0+L?(;
return0; 5.{=Op!
else EtN,
return previousIndex; 81{8F
} C`i#7zsH
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} @u9L+*F
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抽象业务类 MSS[-}
java代码: KMIe%2:b5
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/** ~O\A 0e
* Created on 2005-7-12 oqF?9<Vgc,
*/ k37?NoT
package com.javaeye.common.business; U?Jk
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import java.io.Serializable; (yP1}?
import java.util.List; V*\hGNV
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import org.hibernate.Criteria; Pq [_(Nt
import org.hibernate.HibernateException; v3Vve:}+
import org.hibernate.Session; tJ;qZyy(
import org.hibernate.criterion.DetachedCriteria; pV ^+X}
import org.hibernate.criterion.Projections; S2'a i
import yR>P
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org.springframework.orm.hibernate3.HibernateCallback; K{DC{yLu
import !lNyoX/
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org.springframework.orm.hibernate3.support.HibernateDaoS .S54:vs
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upport; HfSx*@\s
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import com.javaeye.common.util.PaginationSupport; R*:$^v@4
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public abstract class AbstractManager extends S3%2T
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HibernateDaoSupport { Qa=Y?=Za
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privateboolean cacheQueries = false; p}!i_P
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privateString queryCacheRegion; h s',f
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publicvoid setCacheQueries(boolean AA=Ob$2$
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cacheQueries){ O
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this.cacheQueries = cacheQueries; N0w?c 5>
} %9>w|%+;U+
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publicvoid setQueryCacheRegion(String F&wAre<
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queryCacheRegion){ 0C :8X
this.queryCacheRegion = A^z{n/DiL
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queryCacheRegion; 0`S{>G
} 6{.U7="
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publicvoid save(finalObject entity){ jaEe$2F2
getHibernateTemplate().save(entity); /.e7#-+?
} ?P+Uv
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publicvoid persist(finalObject entity){ ;B 8Q,.t>x
getHibernateTemplate().save(entity); y-E'Y=j
} v1{j1~ZR
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publicvoid update(finalObject entity){ flPS+
getHibernateTemplate().update(entity); O;RBK&P
} x$-kw{N
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publicvoid delete(finalObject entity){ 2|bt"y-5r
getHibernateTemplate().delete(entity); *90dkJZ.
} 8
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publicObject load(finalClass entity, fhN\AjB6Td
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finalSerializable id){ $3"hOEN@5`
return getHibernateTemplate().load F 6sQeU
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(entity, id); v Z]j%c@
} B<EqzP*#
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publicObject get(finalClass entity, F3(SbM-
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finalSerializable id){ TXi|
return getHibernateTemplate().get r =x"E$
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(entity, id); 3H!]X M
} }o:LwxNO
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publicList findAll(finalClass entity){ GwF8ze+cH
return getHibernateTemplate().find("from %mss{p!d6
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" + entity.getName()); %"r9;^bj&<
} ^|Z'}p|&
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publicList findByNamedQuery(finalString /g>-s&w
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namedQuery){ )]q Qgc&
return getHibernateTemplate 8lx}0U
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().findByNamedQuery(namedQuery); [c=Wp
} ~OX\R"aZBW
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