Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 2Pz)vnV"
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 ux=0N]lc
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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 %IhUQ6
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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 }<KQ+
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分页支持类: 1$1[6
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java代码: Q( g&/O
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package com.javaeye.common.util; ?@LqrKj11
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import java.util.List; . ]D7Il
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publicclass PaginationSupport {
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publicfinalstaticint PAGESIZE = 30; c3]X#Qa#m$
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privateint pageSize = PAGESIZE; I {&8iUN
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privateList items; _oBJ'8R\
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privateint totalCount; #cdrobJ
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privateint[] indexes = newint[0]; ^oYudb^%
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privateint startIndex = 0; A1uo@W
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public PaginationSupport(List items, int TOC2[mc'
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totalCount){ f&ri=VJY\T
setPageSize(PAGESIZE); U2TR>0l
setTotalCount(totalCount); VsR8|Hn$
setItems(items); ~P;KO40K
setStartIndex(0); P<s0f:".
} zvAUF8'_
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public PaginationSupport(List items, int 5zk^zn)
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totalCount, int startIndex){ ' En|-M5
setPageSize(PAGESIZE); "s3eO
setTotalCount(totalCount); *uG!U%jY)
setItems(items); (#?k|e"Y"`
setStartIndex(startIndex); X+LG Z4]D
} K#_x.:<J
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public PaginationSupport(List items, int & Y Y^Bd#
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totalCount, int pageSize, int startIndex){ _j Ck)3KO
setPageSize(pageSize); >.4mAO
setTotalCount(totalCount); |'ML
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setItems(items); Fx6]x$3
setStartIndex(startIndex); >xB[k-C4
} U?.cbB,
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publicList getItems(){ TP R$oO2
return items; f:hsE
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publicvoid setItems(List items){ u zgQ_
this.items = items; JDp{d c
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publicint getPageSize(){ 3 jR I@
return pageSize; mMSQW6~j
} <g3)!VR^q
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publicvoid setPageSize(int pageSize){ [3|&!:4g6
this.pageSize = pageSize; Z(c3GmY
} -{O>'9'1A
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publicint getTotalCount(){ [QZ g=."
return totalCount; PqDffZ^z
} \{u 9Kc
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publicvoid setTotalCount(int totalCount){ B/F6WQdZ
if(totalCount > 0){
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this.totalCount = totalCount; |S0nR<x-M
int count = totalCount / Ql8s7 %
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pageSize; ]/ffA|"U`
if(totalCount % pageSize > 0) R!Lh~~@{(
count++; cM 5V%w
indexes = newint[count]; OAw- -rl
for(int i = 0; i < count; i++){ ]o+5$L,5b
indexes = pageSize * [Rxbb+,U
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} Q/zlU@
}else{ ;eY.4/*R
this.totalCount = 0; CyXFuk!R
} 'nRoa7v(
} 0 *^>/*
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publicint[] getIndexes(){ O3K TKL]
return indexes; w]O[{3"
} 1Xn:B_pP
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publicvoid setIndexes(int[] indexes){ eEl71
this.indexes = indexes; BL[N
} CFTw=b@
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publicint getStartIndex(){ +{h.nqdAE
return startIndex; SPN5H;{[]K
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publicvoid setStartIndex(int startIndex){ }5]2tH${
if(totalCount <= 0) A~)#
this.startIndex = 0; AC&)FY
elseif(startIndex >= totalCount) %iR"eEE
this.startIndex = indexes fK{m7?V
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[indexes.length - 1]; i9koh3R\
elseif(startIndex < 0) 'B\7P*L"p
this.startIndex = 0; j@u]( nf
else{ vN9R.R
this.startIndex = indexes cMK}BHOC
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[startIndex / pageSize]; /P%OXn$i/
} 5_7y 1
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publicint getNextIndex(){ cw"Ou%
int nextIndex = getStartIndex() + B?
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pageSize; %EH{p@nM&-
if(nextIndex >= totalCount) ~YRG9TK
return getStartIndex(); oH='\M%+
else zQ~ax!}R
return nextIndex; Ms
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} u*=8s5Q[
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publicint getPreviousIndex(){ [nASMKK0
int previousIndex = getStartIndex() - mgE
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pageSize; 363KU@`
if(previousIndex < 0) e|}B;<
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else z_8lf_N
return previousIndex; .+(R,SvN%<
} +3F%soum95
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} p?2^JJpUb
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抽象业务类 SA?lDRF
java代码: PH$C."Vv
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/** V}X>~ '%
* Created on 2005-7-12 74r$)\q
*/ FrC)2wX
package com.javaeye.common.business; P W_"JZ
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import java.io.Serializable; Z`<5SHQd
import java.util.List; bH.SUd)
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import org.hibernate.Criteria; 3 <)+)n
import org.hibernate.HibernateException; Z 4QL&?U
import org.hibernate.Session; R-YNg
import org.hibernate.criterion.DetachedCriteria; A <_{7F9
import org.hibernate.criterion.Projections; [vqf hpz
import Du #>y!
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org.springframework.orm.hibernate3.HibernateCallback; FsLd&$?T&
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org.springframework.orm.hibernate3.support.HibernateDaoS 2]]}Xvx4#
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upport; ot0g@q[3
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import com.javaeye.common.util.PaginationSupport; n^|SN9_r
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public abstract class AbstractManager extends =o4gW`\z
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HibernateDaoSupport { D"gv:RojD
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privateboolean cacheQueries = false; OS-k_l L
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privateString queryCacheRegion; U(gYx@
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publicvoid setCacheQueries(boolean RzU9]e
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cacheQueries){ zZ,"HY=jN
this.cacheQueries = cacheQueries; ++n_$Qug
} 0avtfQ +f
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publicvoid setQueryCacheRegion(String 10Q!-K),p
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queryCacheRegion){ >0_{80bdO
this.queryCacheRegion = eX1_=?$1P
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queryCacheRegion; `A9fanh
} *{,}pK2*
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publicvoid save(finalObject entity){ 7 0PGbAD
getHibernateTemplate().save(entity); m>|7&l_
} k[)/,1
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publicvoid persist(finalObject entity){ BiDyr
getHibernateTemplate().save(entity); |ZC'a!
} T% GR{mp
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publicvoid update(finalObject entity){ B}nT>Ub
getHibernateTemplate().update(entity); &dPUd~&EL
} LP !d|X
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publicvoid delete(finalObject entity){ m%'T90mi
getHibernateTemplate().delete(entity); :|8!w
} Apj[z2nr
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publicObject load(finalClass entity, I5)$M{#a
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finalSerializable id){ '14 86q@[$
return getHibernateTemplate().load v,Zoy|Lu
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(entity, id); g}S%D(~
} f:t j
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publicObject get(finalClass entity, r9*6=*J|
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finalSerializable id){ EEMRy
return getHibernateTemplate().get E62_k
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(entity, id); ej7L-~lxQ
} zK I1
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publicList findAll(finalClass entity){ JP(0/?Q
return getHibernateTemplate().find("from | #b/EA9
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" + entity.getName()); 8)MWC:
} !@*= b1
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publicList findByNamedQuery(finalString )c?nh3D
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namedQuery){ Z
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return getHibernateTemplate <EdNF&S-
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().findByNamedQuery(namedQuery); 2R
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} _0ZU I^#
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publicList findByNamedQuery(finalString query, }346uF7C
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finalObject parameter){
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return getHibernateTemplate I-=Ieq"R9
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().findByNamedQuery(query, parameter); 2G<XA
} Sn^M[}we
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publicList findByNamedQuery(finalString query, .;S1HOHz4
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finalObject[] parameters){ dt>9mF q
return getHibernateTemplate ?G<?:/CU
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