Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 TvM~y\s
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 IBGrt^$M
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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 pCDmXB
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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 CITc2v3a
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分页支持类: i%/+5gq
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java代码: =|=(l)8
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package com.javaeye.common.util; ?< />Z)
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import java.util.List; 6863xOv{T
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publicclass PaginationSupport { ?[AD=rUC
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publicfinalstaticint PAGESIZE = 30; \zY!qpX<
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privateint pageSize = PAGESIZE; RN1_S
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privateList items; 0f/<7R
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privateint totalCount; yfSmDPh
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privateint[] indexes = newint[0]; p ?!/+
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privateint startIndex = 0; S!UaH>Rh
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public PaginationSupport(List items, int bsX[UF
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totalCount){ \<' ?8ri#
setPageSize(PAGESIZE); O?2DQY?jT
setTotalCount(totalCount); uYN`:b8
setItems(items); ]`K2N
setStartIndex(0); +2{Lh7Ks
} _U(
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public PaginationSupport(List items, int $I=~S[p
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totalCount, int startIndex){ +whDU2 "
setPageSize(PAGESIZE); @5FQX
setTotalCount(totalCount); u_enqC3
setItems(items); QV!up^Zso
setStartIndex(startIndex); ]esC[r]PJ
} ";F'~}bDA
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public PaginationSupport(List items, int pP_LR
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totalCount, int pageSize, int startIndex){ UNYqft4
setPageSize(pageSize); Da|z"I
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setTotalCount(totalCount); qm}@!z^
setItems(items); w:0E(z
setStartIndex(startIndex); /wp6KXm
} J5qZFD
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publicList getItems(){ K0~rN.C!0
return items; R&&4y 7
} (=0.in Z
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publicvoid setItems(List items){ L0,'mS
this.items = items; 3`g^
} 'L'R9&o<X
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publicint getPageSize(){ c{|p.hd
return pageSize; i5Ggf"![
} vsPu*[%
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publicvoid setPageSize(int pageSize){ P:c w|Q
this.pageSize = pageSize; 1}x%%RD_
} [,Gg^*umS
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publicint getTotalCount(){ pBHRa?Y5
return totalCount; %b$>qW\*&
} D*jM1w_`
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publicvoid setTotalCount(int totalCount){ @d'j zs
if(totalCount > 0){ l?e.9o2-
this.totalCount = totalCount; r!v\"6:OM
int count = totalCount / Txu/{M,
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pageSize; C%u28|
if(totalCount % pageSize > 0) J.a]K[ci
count++; i!Ba]n
indexes = newint[count]; V~GDPJ+
for(int i = 0; i < count; i++){ ("KF'fp&M2
indexes = pageSize * rq{$,/6.
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} pa+hL,w{6
}else{ hrk r'3lv
this.totalCount = 0; )%TmAaj9d
} 5xiEPh
} W9&=xs6
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publicint[] getIndexes(){ xT8?&Bx
return indexes; 5P bW[
} Uo49*Mr
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publicvoid setIndexes(int[] indexes){ 4euO1=
this.indexes = indexes; 6BlXLQ,8q
} T{"(\X$
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publicint getStartIndex(){ ib m4fa
return startIndex; 9c],<;{'
} P?<y%c<
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publicvoid setStartIndex(int startIndex){ ~DWl s.
if(totalCount <= 0) [[ZJ]^n,
this.startIndex = 0; !D6]JPX
elseif(startIndex >= totalCount) NK+o1
this.startIndex = indexes 6!o1XQr=Z
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[indexes.length - 1]; x-c"%Z|
elseif(startIndex < 0) jIyQ]:* p
this.startIndex = 0; Bvj0^fSm
else{ pAEx#ck
this.startIndex = indexes *hrd5na
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[startIndex / pageSize]; '-6~tWC~7
} E`q_bn
} p_ =z#
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publicint getNextIndex(){ zDp 2g)
int nextIndex = getStartIndex() + llDJ@
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pageSize; 3T
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if(nextIndex >= totalCount) l6B@qYLZ
return getStartIndex(); )"LJ
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else K,]=6Rj
return nextIndex; Ru XC(qcq
} Bx!-"e
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publicint getPreviousIndex(){ 5f /`Q
int previousIndex = getStartIndex() - 67TwPvh
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pageSize; @;kSx":b
if(previousIndex < 0) H]!"Zq k
return0; \jA~9
else P2!C|SLK
return previousIndex; \9d$@V
} Qd6F H2Pl
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} d3Rw!slIq
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抽象业务类 n(Uyz`qE
java代码: }%z
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/** HThcn1u~^b
* Created on 2005-7-12 nm+s{
*/ V1?]|HTQcT
package com.javaeye.common.business; 2%>FR4a
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import java.io.Serializable; fV:83|eQ
import java.util.List; AEuG v}#
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import org.hibernate.Criteria; nie% eC&U
import org.hibernate.HibernateException; b2]Kx&!
import org.hibernate.Session; OH"XrCX7n
import org.hibernate.criterion.DetachedCriteria; a>)f=uS
import org.hibernate.criterion.Projections; Q^I\cAIB
import P&q7|ST%N
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org.springframework.orm.hibernate3.HibernateCallback; {|\.i
import RL<c>PY
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org.springframework.orm.hibernate3.support.HibernateDaoS V+~Nalm O
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upport; v@Ox:wl>
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import com.javaeye.common.util.PaginationSupport; b[7]F
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public abstract class AbstractManager extends *'X3z@R
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HibernateDaoSupport { njw|JnDv
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privateboolean cacheQueries = false; c|1&lYal;
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privateString queryCacheRegion; 9/;P->wy
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publicvoid setCacheQueries(boolean 4X$Qu6#i
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cacheQueries){ g ci
this.cacheQueries = cacheQueries; ]:f%l
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} gNhQD*+>{
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publicvoid setQueryCacheRegion(String 9,tej
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queryCacheRegion){ #,.Hr#3nI
this.queryCacheRegion = ]fD}
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queryCacheRegion; @R
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} _l]fkk[T
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publicvoid save(finalObject entity){ `KQvJjA6
getHibernateTemplate().save(entity); ""D 4s
} 'eX '
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publicvoid persist(finalObject entity){ Bnd [X
getHibernateTemplate().save(entity); @]#1(9P
} d:{O\
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publicvoid update(finalObject entity){ ,{q;;b9
getHibernateTemplate().update(entity); 2>H24F
} 2dzrRH
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publicvoid delete(finalObject entity){ Ydy9
getHibernateTemplate().delete(entity); TW>WHCAm
} s!e3|pGS
}#E[vRf
publicObject load(finalClass entity, rc>6.sM
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finalSerializable id){ _]*>*XfF(
return getHibernateTemplate().load (%:c#;#
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(entity, id); Q1l '7N
} c7E11 \%&Z
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publicObject get(finalClass entity, ;]jNk'oa
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finalSerializable id){ T${Q.zHY[!
return getHibernateTemplate().get 9!DQ~k%
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(entity, id); o\)F}j&b#=
} u=_mvN
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publicList findAll(finalClass entity){ E\2%E@0#
return getHibernateTemplate().find("from 8Dm%@*B^b
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" + entity.getName()); SN!?}<|U
} '-/xyAzS
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publicList findByNamedQuery(finalString ;l-!)0U
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namedQuery){ NS6:yX,/
return getHibernateTemplate Q'mM3pq4r
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().findByNamedQuery(namedQuery); =6|&Jt
} 0tB0@Wj
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publicList findByNamedQuery(finalString query, fLm*1S|%\
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finalObject parameter){ a,#j =
return getHibernateTemplate L4|`;WP
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().findByNamedQuery(query, parameter); }t1a*z
} SrK<fAkx
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publicList findByNamedQuery(finalString query, ; XN{x
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finalObject[] parameters){ x6ARzH\
return getHibernateTemplate GU8sO@S5#
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().findByNamedQuery(query, parameters); Hi`//y*92H
} 3+fp2
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publicList find(finalString query){ U,- 39mr
return getHibernateTemplate().find w+E,INdi
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(query); QM#4uI55B
} E5lBdM>2
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publicList find(finalString query, finalObject 6s/&