Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 D8{D[fJ;
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 ;:S&F
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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 {",MCu_V
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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 {s?M*_{|
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分页支持类: dCYCHHHF
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java代码: dBsX*}C
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package com.javaeye.common.util; cxeghy:;U
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import java.util.List; oq/G`{`\
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publicclass PaginationSupport { 3gWvmep1
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publicfinalstaticint PAGESIZE = 30; U=Y)V%
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privateint pageSize = PAGESIZE; a`9L,8Ve
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privateList items; F~#zxwd
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privateint totalCount; h!@|RW&}qX
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privateint[] indexes = newint[0]; gbOpj3
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privateint startIndex = 0; E"iUq
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public PaginationSupport(List items, int 2Q7R6*<N:
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totalCount){ MvLs%GE%
setPageSize(PAGESIZE); t9
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setTotalCount(totalCount); "eWk#/
setItems(items);
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setStartIndex(0); i!2TH~zl
} W+wA_s2&D
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public PaginationSupport(List items, int 'mCe=Y
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totalCount, int startIndex){ ^VW
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setPageSize(PAGESIZE); $w)~O<_U
setTotalCount(totalCount); TlL^7f}
setItems(items); 'AGto'Yy;
setStartIndex(startIndex); 1sE?YJP-
} 8*SDiZ
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public PaginationSupport(List items, int 9Gy
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totalCount, int pageSize, int startIndex){ :Eh\NOc_O
setPageSize(pageSize); onCKI,"
setTotalCount(totalCount); *,C(\!b
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setItems(items); 7 J^rv9i4
setStartIndex(startIndex); q>f<u&
} (z7vl~D
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publicList getItems(){ pA.J@,>`}
return items; >4Y3]6N0.F
} !IU.a90V
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publicvoid setItems(List items){ T J^u"j-'
this.items = items; dF0,Y?
} I&?Qq k
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publicint getPageSize(){ B!{d-gb
return pageSize; 7A\Cbu2tf
} 7g=2Z[o
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publicvoid setPageSize(int pageSize){ 'ckQg=zPR
this.pageSize = pageSize; /[:dp<
} #Lsnr.80
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publicint getTotalCount(){ sb:d>6
return totalCount; ]3ONFa
} r`&-9"+
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publicvoid setTotalCount(int totalCount){ 7*j
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if(totalCount > 0){ eD$M<Eu
this.totalCount = totalCount; "gd=J_Yw
int count = totalCount / 4${jr\q]
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pageSize; ')a(.f
if(totalCount % pageSize > 0) 5vo.[^ty
count++; .)1_Ew
indexes = newint[count]; hPq%Lc
for(int i = 0; i < count; i++){ kdz=ltw
indexes = pageSize * IcP)FB4
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} 4?N8R$
}else{ }'r[m5T
this.totalCount = 0; r|4t aV&
} j Ja$a [
} I8oo~2Qw
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publicint[] getIndexes(){ AV 8n(
return indexes; "G>3QL+O|
} NmK8<9`u
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publicvoid setIndexes(int[] indexes){ V)Z70J<'
this.indexes = indexes; d]9U^iy
} Iff9'TE
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publicint getStartIndex(){ I%|>2}-_U
return startIndex; ntNI]~z&
} R1&unm0
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publicvoid setStartIndex(int startIndex){ fEB7j-t
if(totalCount <= 0) (E,T#uc{
this.startIndex = 0; !+u"3;%h
elseif(startIndex >= totalCount) .4.b*5
this.startIndex = indexes 5cx#SD&5/
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[indexes.length - 1]; 'B+ ' (f
elseif(startIndex < 0) &d7Z6P'`G
this.startIndex = 0; "CiTa>x
else{ nRd)++
this.startIndex = indexes 4|A>b})H
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[startIndex / pageSize]; ceNix!P
} :Hxv6
} .^J2.>.
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publicint getNextIndex(){ `1 :{0p2q
int nextIndex = getStartIndex() + *<1r3!
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pageSize; t6v/sZ{F
if(nextIndex >= totalCount) ?` SUQm
return getStartIndex(); XMG]Wf^%\<
else \uss Uv
return nextIndex; )M2F4[vcb
} ;Eu3[[V
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publicint getPreviousIndex(){ );-~j
int previousIndex = getStartIndex() - m%?V7-9!k
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pageSize; X.`~>`8
if(previousIndex < 0) !3T&4t
return0; fM^[7;]7e
else #^+DL]*l
return previousIndex; "RIZV
} fNGZ o
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} #c^^=Z
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抽象业务类 O12eH
java代码: g+X}c/".
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/** 2wF8 P)
* Created on 2005-7-12 vv26I
*/ "Ks,kSEzu
package com.javaeye.common.business; J90v!p-
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import java.io.Serializable; m,fAeln
import java.util.List; -*.-9B~u
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import org.hibernate.Criteria; 6;b~Ht
import org.hibernate.HibernateException; ]l8^KX'
import org.hibernate.Session; W456!OHa
import org.hibernate.criterion.DetachedCriteria; |JCU<_<
import org.hibernate.criterion.Projections; (XoH,K?{z
import +>JjvYx}\
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org.springframework.orm.hibernate3.HibernateCallback; I!^O)4QRx
import fFQ|T:vm
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org.springframework.orm.hibernate3.support.HibernateDaoS #:SNHM^><
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upport; Dc)dE2
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import com.javaeye.common.util.PaginationSupport; :6%Z]tt
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public abstract class AbstractManager extends m# =z7.XrX
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HibernateDaoSupport { _YRE (YZ/
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privateboolean cacheQueries = false; ,a#EW+" Z
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privateString queryCacheRegion; tJN<PCG6"
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publicvoid setCacheQueries(boolean L@fY$Rw
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cacheQueries){ Sfdu`MQR
this.cacheQueries = cacheQueries; *g^x*|f6
} ,i@X'<;y
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publicvoid setQueryCacheRegion(String f5 `g
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queryCacheRegion){ 4bgqg0z>
this.queryCacheRegion = J`2"KzR0w"
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queryCacheRegion; 7B?c{
} vx4+QQYP
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publicvoid save(finalObject entity){ #KO,~]k5|e
getHibernateTemplate().save(entity); Dl}$pN
} Dwzg/F(
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publicvoid persist(finalObject entity){ tor!Dl@Mo
getHibernateTemplate().save(entity); Rn@#d}
} A~mum+[5
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publicvoid update(finalObject entity){ <