Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 B|!Re4`0
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 lm$T`:c
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据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 b( wiJ&t
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 [xHK^JP 8F
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分页支持类: 'Ic$p>
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java代码: 6b@:La
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package com.javaeye.common.util; 1g
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import java.util.List; bEM-^SR
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publicclass PaginationSupport { O `*}N1No[
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publicfinalstaticint PAGESIZE = 30; vuHqOAFNs
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privateint pageSize = PAGESIZE; Uc.K6%iI
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privateList items; ]2?t$"G8
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privateint totalCount; NI3_wV
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privateint[] indexes = newint[0]; }yUZ(k#
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privateint startIndex = 0; =^NR(:SaaU
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public PaginationSupport(List items, int O0e6I&u:
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totalCount){ h&&ufF]D
setPageSize(PAGESIZE); 23zB@aE_?1
setTotalCount(totalCount); k<m{Wp;-
setItems(items); (Ori].{C.J
setStartIndex(0); c'[l%4U8[
} 5MT$n4zKu
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public PaginationSupport(List items, int :dK/}S0
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totalCount, int startIndex){ G >bQlZG
setPageSize(PAGESIZE); LXrnAt
setTotalCount(totalCount); JW
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setItems(items); >osY?9
setStartIndex(startIndex); +[ !K
} LyH{{+V
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public PaginationSupport(List items, int SO9j/
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totalCount, int pageSize, int startIndex){ L'.7V ~b{
setPageSize(pageSize); I6~.sTl
setTotalCount(totalCount); Jc/*w
setItems(items); J&wrBVv1uk
setStartIndex(startIndex); 0KE+RzrB
} {U>B\D
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publicList getItems(){ V |)3l7IC<
return items; W-2,QVp%
} ,F]Y,"x:
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publicvoid setItems(List items){ 5?{a=r9
this.items = items; xh,};TS(K
} s7[du_)
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publicint getPageSize(){ Ru`&>E
return pageSize; >:WnCkbp
} |\Nu+w
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publicvoid setPageSize(int pageSize){ {%*,KB>b
this.pageSize = pageSize; ?Mtd3F^o?
} OW;]=k/(
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publicint getTotalCount(){ J4&d6[40
return totalCount; sA[hG*#/S
} N*y09?/h
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publicvoid setTotalCount(int totalCount){ q,(U 8
if(totalCount > 0){ v'mRch)d
this.totalCount = totalCount; gs7h`5[es
int count = totalCount / cxn3e,d`
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pageSize; {26/SY
if(totalCount % pageSize > 0) j#hFx+S
count++; E<y0;l?H<
indexes = newint[count]; 9!&fak_
for(int i = 0; i < count; i++){ jvv3;lWDL.
indexes = pageSize * dI};l
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} YMb\v4
}else{ >)\x\e
this.totalCount = 0; 5)bf$?d
} ZCVwQ#Xe+
} )RG@D\t ,
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publicint[] getIndexes(){ p=sLKnLmZ
return indexes; GgwO>[T
} Sc#B-4m
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publicvoid setIndexes(int[] indexes){ QQ;<L"VW
this.indexes = indexes; E{'{fo!#)
} %&w 8E[
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publicint getStartIndex(){ w/&)mm{
return startIndex; 'RZ=A+% X
} 3c#oK
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publicvoid setStartIndex(int startIndex){ R9bsl.e
if(totalCount <= 0) dnRbt{`jP
this.startIndex = 0; HGM ?
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elseif(startIndex >= totalCount) O<}3\O )G(
this.startIndex = indexes ZFYv|2l
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[indexes.length - 1]; nE;^xMOK!
elseif(startIndex < 0) t+y$i@R:
this.startIndex = 0; HGIPz{/5U
else{ DO6Tz-%o
this.startIndex = indexes !D#wSeJ
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[startIndex / pageSize]; 4
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} PW7{,1te,
} RI.6.f1dy
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publicint getNextIndex(){ nwSujD
int nextIndex = getStartIndex() + \A
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pageSize; G4O
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if(nextIndex >= totalCount) ]:H((rk
return getStartIndex(); P5;n(E(19
else Q5%$P\
return nextIndex; o^Z/~N
} B"KDr_,,
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publicint getPreviousIndex(){ SUGB)vEa
int previousIndex = getStartIndex() - kHMD5Q
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pageSize; Fs+
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if(previousIndex < 0) uT1xvXfqP
return0; /1D]\k()
else }MU}-6
return previousIndex; B:5N Ia
} QEtf-xNn^
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} <=O/_Iu(
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抽象业务类 1=o|[7
java代码: F"I{_yleq'
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/** H| UGR~&
* Created on 2005-7-12 M8Tj;ATr
*/ v$n J$M&k
package com.javaeye.common.business; pk>p|q
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import java.io.Serializable; MawWgd*
import java.util.List; XHN*'@
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import org.hibernate.Criteria; WF#3'"I
import org.hibernate.HibernateException; yZHh@W4v
import org.hibernate.Session; NCu:E{([
import org.hibernate.criterion.DetachedCriteria; cpY'::5.%
import org.hibernate.criterion.Projections; 0XgJCvMcB
import +O]jklS4H
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org.springframework.orm.hibernate3.HibernateCallback; 322)r$!"
import N"',
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org.springframework.orm.hibernate3.support.HibernateDaoS O\~/J/u
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upport; }^b7x;O|
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import com.javaeye.common.util.PaginationSupport; |M;tAG$,"y
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public abstract class AbstractManager extends 76'@}wNnw
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HibernateDaoSupport { r:.ydr@
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privateboolean cacheQueries = false;
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privateString queryCacheRegion; 4hQ.RO
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publicvoid setCacheQueries(boolean j:Y1
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cacheQueries){ jWUpzf)q=T
this.cacheQueries = cacheQueries; }piDg(D
} +KcD Y1[
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publicvoid setQueryCacheRegion(String - WEEnwZ
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queryCacheRegion){ wO-](3A-8P
this.queryCacheRegion = .sqX>sU/]
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queryCacheRegion; H
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} _x'?igy
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publicvoid save(finalObject entity){ 3oo Tn-`{
getHibernateTemplate().save(entity); f+c<