Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 OGGSS&5tw
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 3a9u"8lG
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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 F+3!uWUK
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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 pND48 g;
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分页支持类: F:_FjxU
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java代码: W8VO)3nmD
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package com.javaeye.common.util; l@#b;M/
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import java.util.List; ]` K[W &
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publicclass PaginationSupport { a}w&dE$!-
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publicfinalstaticint PAGESIZE = 30; Cc*|Zw
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privateint pageSize = PAGESIZE; R@&?i=gk
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privateList items; [&Lxz~W][
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privateint totalCount; @YsL*zw
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privateint[] indexes = newint[0]; v3Eo@,-
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privateint startIndex = 0; L^&do98
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public PaginationSupport(List items, int bnIf}ut-G
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totalCount){ :%pw`b, =V
setPageSize(PAGESIZE); |O2|`"7
setTotalCount(totalCount); RR8U
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setItems(items); POkXd^pI
setStartIndex(0); WI%zr2T
} - f+CyhR"*
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public PaginationSupport(List items, int g}^4^88=a
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totalCount, int startIndex){ P~;<o!f
setPageSize(PAGESIZE); !:&2+%
setTotalCount(totalCount); iFY]0@yt
setItems(items); Q^\{Zg)p
setStartIndex(startIndex); ;9 lqSv/6
} P^i6MZ?
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public PaginationSupport(List items, int 6="M0%
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totalCount, int pageSize, int startIndex){ W5M
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setPageSize(pageSize); @DRfNJ}
setTotalCount(totalCount); % jYQ
setItems(items); `@W3sW/^
setStartIndex(startIndex); zS#f%{
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publicList getItems(){ RI7qsm6RN
return items; }?\#_BCjx(
} mg/C Ux
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publicvoid setItems(List items){ 5M/%%Ox
this.items = items; TPV6$a <
} LbLbJ{68
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publicint getPageSize(){ I_R5\l}O+D
return pageSize; QH~8
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} 0jl:Yzo&\
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publicvoid setPageSize(int pageSize){ IeqWR4Y
this.pageSize = pageSize; uaZ"x&oZ#
} y&KoL\
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publicint getTotalCount(){ 83p$!8]u
return totalCount; soFvrl^Ql+
} o{YW
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publicvoid setTotalCount(int totalCount){ W}<M?b4tP
if(totalCount > 0){ *R9mgv[
this.totalCount = totalCount; N'Z_6A*-
int count = totalCount / 9>}(]T
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pageSize; 7oqn;6<[>,
if(totalCount % pageSize > 0) pX h^M{.
count++; :*w:eKk
indexes = newint[count]; %yS`C"ZQ)
for(int i = 0; i < count; i++){ 2=Vkjh-
indexes = pageSize * 8m13M5r
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} TnZc.
}else{ ADwwiq#E
this.totalCount = 0; Rp4BU"&sU
} Br.$L
} >>
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publicint[] getIndexes(){ MlcoOi!
return indexes; EssUyF-jwU
} *M**h-p2'
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publicvoid setIndexes(int[] indexes){ #\!hBL
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this.indexes = indexes; s'fcAh,c6
} ss M9t
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publicint getStartIndex(){ JD\-X(O
return startIndex; ]6c2[r?g{
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publicvoid setStartIndex(int startIndex){ gCBZA;/
if(totalCount <= 0) iRr&'k
this.startIndex = 0; +
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elseif(startIndex >= totalCount) q'8@0FT0
this.startIndex = indexes #}]il0d
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[indexes.length - 1]; ''
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elseif(startIndex < 0) $R#L@iL-
this.startIndex = 0; 5t1DB'K9$_
else{ )^'B:ic
this.startIndex = indexes qZ]VS/5A
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[startIndex / pageSize]; W;@ae,^
} #d i_V"
} 2n+XML
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publicint getNextIndex(){ oP`M\KXau
int nextIndex = getStartIndex() + B+H9c~3$
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pageSize; eJ\j{-
if(nextIndex >= totalCount) I!0+RP(
return getStartIndex(); :H8L (BsI
else /F9lW}pd
return nextIndex; %L|bF"K5;
} >u#VHaB
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publicint getPreviousIndex(){ \osQwGPV
int previousIndex = getStartIndex() - [k{iN1n
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pageSize; c89vx 9
if(previousIndex < 0) +rO<'H:umJ
return0; g-gBg\y{v
else ;+KgujfU
return previousIndex; S&)
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} /%w[q:..h
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抽象业务类 la 7QN QW
java代码: ;@s~t:u
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/** 0!
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* Created on 2005-7-12 3+uoK f[
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package com.javaeye.common.business; 'Rw]
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import java.io.Serializable; ]arskmB]
import java.util.List; @&yj7-]
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import org.hibernate.Criteria; =nZd"t'p|
import org.hibernate.HibernateException; Khd ,|pM
import org.hibernate.Session; =@
import org.hibernate.criterion.DetachedCriteria; YcZ4y@6"
import org.hibernate.criterion.Projections; :[03upyS
import 7E)7sd
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org.springframework.orm.hibernate3.HibernateCallback; kn|l 3+
import dig76D_[e
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org.springframework.orm.hibernate3.support.HibernateDaoS /MtacR
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upport; rM |RGe
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import com.javaeye.common.util.PaginationSupport; *^_!W'T{j
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public abstract class AbstractManager extends J< M;vB)
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HibernateDaoSupport { 6P|neb}
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privateboolean cacheQueries = false; [_@OCiV5)
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privateString queryCacheRegion; !o!04_
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publicvoid setCacheQueries(boolean lh5d6VUA
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cacheQueries){ %}:J
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this.cacheQueries = cacheQueries; -AQX-[B
} $n"Llw&)
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publicvoid setQueryCacheRegion(String .YRSd
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queryCacheRegion){ p3' +"sFU
this.queryCacheRegion = d]]qy
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queryCacheRegion; Jt8 v=<@
} W]OT=6u8o
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publicvoid save(finalObject entity){ ]'q<wPi
getHibernateTemplate().save(entity); *gn*S3Is[j
} Xk$lQMwZ
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publicvoid persist(finalObject entity){ 25L{bcng
getHibernateTemplate().save(entity); ?x97q3I+]
} "K<