Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 IYhn*
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 /^`do3a}
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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 c3O&sa
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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 C0&ZQvvy1:
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分页支持类: T t$]
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java代码: ^,Ft7 JAn
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package com.javaeye.common.util; )c.!3n/pb
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import java.util.List; IG!(q%Gf
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publicclass PaginationSupport { "l B%"}
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publicfinalstaticint PAGESIZE = 30; *^ua2s.
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privateint pageSize = PAGESIZE; Z 3-=TN
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privateList items; :\%ZTBLL
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privateint totalCount; N <M6~
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privateint[] indexes = newint[0]; perhR!#J
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privateint startIndex = 0; @CKMJ^#|
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public PaginationSupport(List items, int $Q= S`z=
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totalCount){ pwA~?$B1
setPageSize(PAGESIZE); e1ExB#
setTotalCount(totalCount); &3\3wcZ,q
setItems(items); &_'3(xIO
setStartIndex(0); FW3uq^
} "!:)qVL^
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public PaginationSupport(List items, int hwSxdT6
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totalCount, int startIndex){ =0>[-:Z
setPageSize(PAGESIZE); x.'Ys1M
setTotalCount(totalCount); pV$A?b"?*
setItems(items); )g ?'Nz
setStartIndex(startIndex); tYx>?~
} .i1|U8" X
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public PaginationSupport(List items, int )4n]n:FjN
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totalCount, int pageSize, int startIndex){ Mz;KXP
setPageSize(pageSize); l7(p~+o?h>
setTotalCount(totalCount); 0hq\{pw_y*
setItems(items); CW,|l0i
setStartIndex(startIndex); ]G,BSttD
} e]V7
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publicList getItems(){ 5IbCE.>iU
return items; p@wtT"Y
} Li\b,_C
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publicvoid setItems(List items){ s^/2sjoL
this.items = items; Kn}Y7B{
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publicint getPageSize(){ ?_.
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return pageSize; 1vCVTuRF
} s 4n<k]d
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publicvoid setPageSize(int pageSize){ wIF)(t-):
this.pageSize = pageSize; n`p/;D=?
} /1.gv~`+
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publicint getTotalCount(){ 3lgD,_&
return totalCount; 5?TX.h9B4
} #y1M1O g
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publicvoid setTotalCount(int totalCount){ rWJKK
if(totalCount > 0){ H:o=gP60]
this.totalCount = totalCount; E/_n}$Z
int count = totalCount / dDl_Pyg4K
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pageSize; /L` +
if(totalCount % pageSize > 0) DOq"=R+
count++; * K0aR!
indexes = newint[count]; TU9$5l/;g
for(int i = 0; i < count; i++){ Q>uJ:[x+
indexes = pageSize * 'acCnn'
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} L"(
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}else{ !)FKF7'
this.totalCount = 0; LKst
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} KnUVR!H|
} au/5`
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publicint[] getIndexes(){ D`)K3;h
return indexes; O66b^*=N}x
} _:!7M^IU
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publicvoid setIndexes(int[] indexes){ ^-(DokdBn
this.indexes = indexes; aX.//T:':?
} P -X2A2
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publicint getStartIndex(){ n"nfEA3{`
return startIndex; I~,b ZA
} LmP pt3[
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publicvoid setStartIndex(int startIndex){ j-t"
if(totalCount <= 0) 3lN@1jlh
this.startIndex = 0; MZ>Q Rf
elseif(startIndex >= totalCount) Bx|h)e9
this.startIndex = indexes Sp[]vm8N
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[indexes.length - 1]; X5=I{eY}
elseif(startIndex < 0) 2j$~lI
this.startIndex = 0; (SByN7[gb
else{ }bnodb^.7
this.startIndex = indexes 5JS*6|IbD{
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[startIndex / pageSize]; @GF3g=
} UtHloq(r
} j)#GoU=w
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publicint getNextIndex(){ Y.%Vvg4z3
int nextIndex = getStartIndex() + Nf}i/
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pageSize; @IOl0db
if(nextIndex >= totalCount) ?h,.1Tb
return getStartIndex(); %I@vM s^
else t"YN:y8-
return nextIndex; _.SpU`>/f
} Wlp`D
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publicint getPreviousIndex(){ qf{HGn_9~1
int previousIndex = getStartIndex() - R0-Y2v
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pageSize; *pyC<4W
if(previousIndex < 0) JY3!jtv
return0; fr&p0)85>B
else (*\y
return previousIndex; UI*&@!%bzp
} h;~NA}>
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} A>\3FeU>UC
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抽象业务类 /'^BHA|h
java代码: c)c_Qv
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/** IEWl
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* Created on 2005-7-12 BL%3[JQ
*/ ER:K^
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package com.javaeye.common.business; !. :b}t
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import java.io.Serializable; .:tR*Kst`7
import java.util.List; eQIS`T
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import org.hibernate.Criteria; lo36b zbT
import org.hibernate.HibernateException; A@reIt
import org.hibernate.Session; ,? Q1JZPy@
import org.hibernate.criterion.DetachedCriteria; 2
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import org.hibernate.criterion.Projections; ;XXEvRk
import (V"7H
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org.springframework.orm.hibernate3.HibernateCallback; !RN9wXS7
import B9'2$s+Z;
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org.springframework.orm.hibernate3.support.HibernateDaoS k0xm-
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upport; ""jl
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import com.javaeye.common.util.PaginationSupport; Hq,znRz~`
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public abstract class AbstractManager extends ~-~iCIaTb
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HibernateDaoSupport { l!IN #|{(
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privateboolean cacheQueries = false; >jc17BJq
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privateString queryCacheRegion; &]c7<=`K"
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publicvoid setCacheQueries(boolean %gTY7LIe1z
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cacheQueries){ !KHbsOT?9
this.cacheQueries = cacheQueries; M*F`s&vM
} &p=(0$0&-
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publicvoid setQueryCacheRegion(String _Fjax
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queryCacheRegion){ ST\d-x
this.queryCacheRegion = M\kct7Y
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queryCacheRegion; +b{tk=Q:
} l{.
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publicvoid save(finalObject entity){ _61tE
getHibernateTemplate().save(entity); 'zuA3$SR
} !XY}\zKq
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publicvoid persist(finalObject entity){ hy@e(k|S]U
getHibernateTemplate().save(entity); Na`vw
} |l,0bkY@&
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publicvoid update(finalObject entity){ xGX U7w:X
getHibernateTemplate().update(entity); +VHoYEW
} wQX%*GbL2
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publicvoid delete(finalObject entity){ E D_J8+
getHibernateTemplate().delete(entity); `R:HMO[ow
} lAx8m't}6
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publicObject load(finalClass entity, AHTQF#U^
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finalSerializable id){ @|9V]bk
return getHibernateTemplate().load {c=H#- A
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(entity, id); g=kuM
} zA&]#mc
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publicObject get(finalClass entity, Evq^c5n>{
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finalSerializable id){ fngk<$lvg
return getHibernateTemplate().get W$u/tRF
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(entity, id); $lAhKpdlW
} _,E! <
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publicList findAll(finalClass entity){ [214b=
return getHibernateTemplate().find("from YN5p@b=FX
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" + entity.getName()); Pqv9>N|
} Z$ Mc{
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publicList findByNamedQuery(finalString aZYs?b>Gm
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namedQuery){ <Z9N}wY,8
return getHibernateTemplate ~bSjZ1`
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().findByNamedQuery(namedQuery); mi$*,fz
} 3']=w@~ O[
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publicList findByNamedQuery(finalString query, /km'#f)/
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finalObject parameter){ s4Y7x.-
return getHibernateTemplate wUbLw
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().findByNamedQuery(query, parameter); \j3XT}
} >Y[nU~ w
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publicList findByNamedQuery(finalString query, 4|DGQ
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finalObject[] parameters){ 8gI~x.k`
return getHibernateTemplate Qg4g(0E@
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().findByNamedQuery(query, parameters); =f{YwtG
} YkbZ 2J*-
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publicList find(finalString query){ H@pF3gh
return getHibernateTemplate().find 9a0ibN6m
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(query); X7gtR|[
} {QRrAi
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publicList find(finalString query, finalObject 8rA?X*|S!
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