Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ]s1TJw [B
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 c.|sW2/
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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 dM);LT8@
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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 Hj}g1"RA
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分页支持类: { Hktu|
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java代码: eyI-s9#t
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package com.javaeye.common.util; A5 &>!y
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import java.util.List; |[lxV&SD.
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publicclass PaginationSupport { r< d?
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publicfinalstaticint PAGESIZE = 30; TMnT#ypf<5
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privateint pageSize = PAGESIZE; z{ Zimr
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privateList items; :X1`wBu
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privateint totalCount; {[(W4NAlH
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privateint[] indexes = newint[0]; 0lvb{Zd
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privateint startIndex = 0; LH?gJ8`
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public PaginationSupport(List items, int C9"f6>i
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totalCount){ pn ~/!y
setPageSize(PAGESIZE); HQ-N!pf9
setTotalCount(totalCount); ];YglHH
setItems(items); ]ly)z[is"]
setStartIndex(0); $=;bccIob
} "9MX,}X*
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public PaginationSupport(List items, int bUipp\[aV
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totalCount, int startIndex){ ;&7qw69k
setPageSize(PAGESIZE); .{-iq(3
setTotalCount(totalCount); +#i,87
setItems(items); il `C,CD
setStartIndex(startIndex); +E""8kW- Z
} Z(Ls#hp
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public PaginationSupport(List items, int Yc|-sEK/
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totalCount, int pageSize, int startIndex){ *`\4j*$^
setPageSize(pageSize); 0*]<RM
setTotalCount(totalCount); <9MQ
setItems(items); !T&u2=`D
setStartIndex(startIndex); _3FMQY(
} p!rGPyGC
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publicList getItems(){ Hsux>+Q
return items; %Pt[3>
} unbcz{&Hb[
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publicvoid setItems(List items){ [\w>{
this.items = items; `qYc#_ELv
} xr1I8 5kM
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publicint getPageSize(){ N|^!"/
return pageSize; 5u=U--
} 1nX68fS.9
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publicvoid setPageSize(int pageSize){ Z)Xq!]~/g
this.pageSize = pageSize; pqNoL*
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} Di5Op(S((
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publicint getTotalCount(){ % 'L=
return totalCount; KlSY^(kHR
} s3fGX|;
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publicvoid setTotalCount(int totalCount){ @)M.u3{\
if(totalCount > 0){ )9;kzp/
this.totalCount = totalCount; 2Xk1AS
int count = totalCount / z<C~DH
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pageSize; aV0;WH_3
if(totalCount % pageSize > 0) v2dSC(hRZ
count++; H603L|4
indexes = newint[count]; Q=9VuTE
for(int i = 0; i < count; i++){ EzY
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indexes = pageSize * n
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} "MVN/Gl
}else{ DQHGq_unP
this.totalCount = 0; XQ?)
} h?O%XnD
} )F9V=PJE
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publicint[] getIndexes(){ @rDv
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return indexes; epm8N /
} Q0oDl8~
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publicvoid setIndexes(int[] indexes){ 'XjHB!!hU
this.indexes = indexes; J1wGK|F~
} %>QSeX
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publicint getStartIndex(){ l=.InSuLT
return startIndex; DyV[+P
} (j\UoKLRt
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publicvoid setStartIndex(int startIndex){ )}k`X<~k
if(totalCount <= 0) >?Y3WPB<F
this.startIndex = 0; !-Tmu
elseif(startIndex >= totalCount) dIe 6:s
this.startIndex = indexes cVt$#A)
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[indexes.length - 1]; Wug ?CFX+T
elseif(startIndex < 0) EC&19
this.startIndex = 0; 8CHf. SXh
else{ 'J<zVD}0
this.startIndex = indexes "\P~Re"EH
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[startIndex / pageSize]; vskM;
} 'Y/V9;`)s
} O"w_sw
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publicint getNextIndex(){ enO=-#
int nextIndex = getStartIndex() + Vf* B1Zb
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pageSize; Y K 62#;
if(nextIndex >= totalCount) kKTED1MW&W
return getStartIndex(); ;?[ +vf")
else G;.u>92r|
return nextIndex; ZJ'H y5?
} \~m%4kzG8J
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publicint getPreviousIndex(){ @ F"ShT0
int previousIndex = getStartIndex() - (%^TTe
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pageSize; <Ucfd
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if(previousIndex < 0) uY#58?>'j
return0; b8xfV{3 L
else nT6iS}h
return previousIndex; "MKsSty
} &ppZRdq]
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} t7&
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抽象业务类 6j.(l4}
java代码: MkIO0&0O
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/** G?X,Y\Lp
* Created on 2005-7-12 [}Yci:P_ +
*/ j;c^pLUP
package com.javaeye.common.business; `Y9}5p
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import java.io.Serializable; )qQg n]
import java.util.List; 1+[|pXT}
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import org.hibernate.Criteria; Bc`A]U
import org.hibernate.HibernateException;
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import org.hibernate.Session; \% Ih 6
import org.hibernate.criterion.DetachedCriteria; [IX!3I[J]
import org.hibernate.criterion.Projections; {ca^yHgGy
import o".O#^3H%
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org.springframework.orm.hibernate3.HibernateCallback; rb4g<f|
import iK23`@&%_
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org.springframework.orm.hibernate3.support.HibernateDaoS Jywz27j
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upport; &^<T/PiR
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import com.javaeye.common.util.PaginationSupport; }tg n1xpx
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public abstract class AbstractManager extends 1T^L) %&p_
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HibernateDaoSupport { H s 3*OhK\
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privateboolean cacheQueries = false; :l[Q
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privateString queryCacheRegion; b-gVRf#F
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publicvoid setCacheQueries(boolean 9O_N
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cacheQueries){ W-B[_
this.cacheQueries = cacheQueries; Fi}rv[`XY[
} yM ~D.D3H
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publicvoid setQueryCacheRegion(String f*@:{2I.v
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queryCacheRegion){ Qi L
this.queryCacheRegion = tXuxTVhoT
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queryCacheRegion; +VFwYdW,
} pIjVJ9+j
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publicvoid save(finalObject entity){ dQ"W~ig
getHibernateTemplate().save(entity); QAw,X Z.K^
} lt"*y.%@b
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publicvoid persist(finalObject entity){ fN>|X\-
getHibernateTemplate().save(entity); Q2PwO;E.`C
} y`dzo`f
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publicvoid update(finalObject entity){ [Y~ s
getHibernateTemplate().update(entity); a-hGpYJJG
} H( m+rk
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publicvoid delete(finalObject entity){ |a\TUzq
getHibernateTemplate().delete(entity); WHT%m|yn
} \C.@ @4{
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publicObject load(finalClass entity, &g {_.n,
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finalSerializable id){ _QCI<|A
return getHibernateTemplate().load (`*wiu+i
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(entity, id); tfQq3 #
} (HxF\#r?
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publicObject get(finalClass entity, 9jO+ew
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finalSerializable id){ oa7Hx<Y
return getHibernateTemplate().get MPc=cLv
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(entity, id); K>6p5*&
} SW,Po>Y
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publicList findAll(finalClass entity){ M*uG`Eo&
return getHibernateTemplate().find("from hgltD8,
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" + entity.getName()); h!]A(T\J
} K@hUif|([
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publicList findByNamedQuery(finalString ,:{+
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namedQuery){ xnOlV
return getHibernateTemplate [J
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().findByNamedQuery(namedQuery); B/}>UHM
} 9\2&6H
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publicList findByNamedQuery(finalString query, B:.rp.1
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finalObject parameter){ p-k qX
return getHibernateTemplate -GjJrYOU
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().findByNamedQuery(query, parameter); N|}`p"
} aoS1Yt'@
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publicList findByNamedQuery(finalString query, J>35q'nN]F
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finalObject[] parameters){ hrF4 a$
return getHibernateTemplate t"fD"Xpj
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().findByNamedQuery(query, parameters); N5DS-gv
} b.&YUg[#
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publicList find(finalString query){ 8),Y|4
return getHibernateTemplate().find TH &B9
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(query); tHeLq*))
} >wwEa4
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publicList find(finalString query, finalObject (WvA9s{/
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parameter){ 0M?}S~p]
return getHibernateTemplate().find dGe
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(query, parameter); yk/XfwQ5
} \\JXY*DA:+
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public PaginationSupport findPageByCriteria ?a@l.ZM*
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(final DetachedCriteria detachedCriteria){ ix;8S=eP~{
return findPageByCriteria ^(R
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(detachedCriteria, PaginationSupport.PAGESIZE, 0); ,PYe7c
} g:yK/1@Hk}
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public PaginationSupport findPageByCriteria It[ ~0?+
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(final DetachedCriteria detachedCriteria, finalint `u-Y 5mY
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startIndex){ 0ZN/-2c A#
return findPageByCriteria mf#oa~_
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(detachedCriteria, PaginationSupport.PAGESIZE, ZUycJ-[
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startIndex); cf9y0
} {;U:0BPI3
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public PaginationSupport findPageByCriteria =[kv@p
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(final DetachedCriteria detachedCriteria, finalint ^&By