Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 PPq*_Cf
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 Cza)s
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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 oNCDG|8z
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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 hXrvb[6
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分页支持类: fglZjT
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java代码: ZR QPOy
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package com.javaeye.common.util; AMm O+E?
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import java.util.List; eD(a
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publicclass PaginationSupport { JWdG?[$
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publicfinalstaticint PAGESIZE = 30; 9(PFd%
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privateint pageSize = PAGESIZE; $7bmUQ|
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privateList items; JR>B<{xB
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privateint totalCount; !*ucVv;
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privateint[] indexes = newint[0]; O0l;Qi
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privateint startIndex = 0; c]&VUWQ
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public PaginationSupport(List items, int pxC5a i
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totalCount){ ^R$dG[Qf
setPageSize(PAGESIZE); j,-7J*A~
setTotalCount(totalCount); F>Oh)VL,Ev
setItems(items); ~VGK#'X:
setStartIndex(0); Cwh;+3?C|
} |S}*M<0
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public PaginationSupport(List items, int lyeoSd1AN
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totalCount, int startIndex){ c,fedH;
setPageSize(PAGESIZE); 18HHEW{
setTotalCount(totalCount); u'b_zlW@
setItems(items); +~v(*s C
setStartIndex(startIndex); l85"C
} 0cbF.Um8
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public PaginationSupport(List items, int !{XO#e
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totalCount, int pageSize, int startIndex){ xd.C&Dx5
setPageSize(pageSize); wz#n$W3mGf
setTotalCount(totalCount); e+WVN5"ID>
setItems(items); )5v .9N6v
setStartIndex(startIndex);
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} <am7t[G."
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publicList getItems(){ f$'D2o, O
return items; Y|~>(
} [)u(\nfGX
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publicvoid setItems(List items){ OY#_0p)i
this.items = items; z~5'p(|@f
} pp`U]Q5"gX
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publicint getPageSize(){ X9j+$X\j
return pageSize; =R"tnjR
} 5S?yj
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publicvoid setPageSize(int pageSize){ B=r/(e
this.pageSize = pageSize; [ub\DLl
} \nWpV7TSN
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publicint getTotalCount(){ J_@4J7
return totalCount; M2S|$6t:
} Jx<
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publicvoid setTotalCount(int totalCount){ )]R?v,9*D
if(totalCount > 0){ tK
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this.totalCount = totalCount; Zv\b`Cf}
int count = totalCount / LfApVUm
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pageSize; J;`~
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if(totalCount % pageSize > 0) <hbbFL}|%
count++; U8KY/!XZ
indexes = newint[count]; [
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for(int i = 0; i < count; i++){ >xKRU5
indexes = pageSize * SI9hS4<j
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} h)vTu%J:
}else{ Se`N5hQ
this.totalCount = 0; oUSG`g^P(M
} 8|GpfW3p2
} j[cjQ]>~'
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publicint[] getIndexes(){ &L]*]Xz;
return indexes; !y?hn$w0
} #O+]ydvT
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publicvoid setIndexes(int[] indexes){ Z(M)2
this.indexes = indexes; !X 8R
} u'1=W5$rK
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publicint getStartIndex(){
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return startIndex; !.$P`wKr
} xk8p,>/
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publicvoid setStartIndex(int startIndex){ P0z{R[KBH
if(totalCount <= 0) =[+&({
this.startIndex = 0; 5#\p>}[HG
elseif(startIndex >= totalCount) u_8 22Z
this.startIndex = indexes NGUGN~p
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[indexes.length - 1]; q?4uH;h:^G
elseif(startIndex < 0) A5ID I<a
this.startIndex = 0; Uc0'XPo3I
else{ ="R6YL
this.startIndex = indexes ie5ijkxZ(
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[startIndex / pageSize]; nn:pf1
} dRa<,@1"
} gDNW~?/
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publicint getNextIndex(){ ^)l@7XxD
int nextIndex = getStartIndex() + @|Bp'`j%J
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pageSize; _|:bac8pL
if(nextIndex >= totalCount) U&$]?3?
return getStartIndex(); pw yl,A
else wR4u}gb#q
return nextIndex; }{oBKm9_p
} _PXo'*j
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publicint getPreviousIndex(){ ]?$y}
int previousIndex = getStartIndex() - N-YZ0/c
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pageSize; g GT,PP(k
if(previousIndex < 0) bnu0*Zg>
return0; gGml
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else k.[) R@0%
return previousIndex; Bjj^!T/#
} &"%|`gE
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} R6mJFE*6T9
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抽象业务类 B^~Bv!tHWr
java代码: hg'!
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/** pY>-N
* Created on 2005-7-12 *js$r+4
*/ b\m(0/x
package com.javaeye.common.business; kdPm # $-
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import java.io.Serializable; 6FIoWG"x
import java.util.List; P\6T4s
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import org.hibernate.Criteria; hcc-J)=m
import org.hibernate.HibernateException; N/{Yi
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import org.hibernate.Session; dS_)ll.6z
import org.hibernate.criterion.DetachedCriteria; k:)u7A+
import org.hibernate.criterion.Projections; LEnP"o9ZW
import ixHZX<6zYT
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org.springframework.orm.hibernate3.HibernateCallback; OrJlHMz
import _m?(O /BTx
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org.springframework.orm.hibernate3.support.HibernateDaoS )K%O/H
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upport; -JhjTA
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import com.javaeye.common.util.PaginationSupport; rIfGmh%H
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public abstract class AbstractManager extends C*6)Ut '
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HibernateDaoSupport { "M0l;
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privateboolean cacheQueries = false; gIM'bA<~
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privateString queryCacheRegion; jy@i(@Z
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publicvoid setCacheQueries(boolean UQ?OD~7
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cacheQueries){ \ j X N*A
this.cacheQueries = cacheQueries; O0(Q0Ko
} RHl=$Hm.%
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publicvoid setQueryCacheRegion(String -@V"i~g<e
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queryCacheRegion){ mS~ ]I$
this.queryCacheRegion = KPd C9H
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queryCacheRegion; D62
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} ZMMo6;
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publicvoid save(finalObject entity){ bb/?02*)H
getHibernateTemplate().save(entity); ytV)!xe
} qM!f
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publicvoid persist(finalObject entity){ ZIL|
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getHibernateTemplate().save(entity); n$|c{2]=
} .0fh>kQ
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publicvoid update(finalObject entity){ !+DJhw&c,
getHibernateTemplate().update(entity); SM#S/|.]
} ]\ 2RVDC
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publicvoid delete(finalObject entity){ ;!JX-J q
getHibernateTemplate().delete(entity); fw|+7 O
} oBNX8%5w
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publicObject load(finalClass entity, 8u'O`j
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finalSerializable id){ t-7U1B}=<C
return getHibernateTemplate().load @-&(TRbZo
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(entity, id); eBC%2TF
} ZecvjbnVY
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publicObject get(finalClass entity, ^?7dOW
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finalSerializable id){ ?9gTk
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return getHibernateTemplate().get %V(N U_o
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(entity, id); mhi90J c
} pjHRV[`AP
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publicList findAll(finalClass entity){ ZAX0n!db3
return getHibernateTemplate().find("from w0j/\XN2s
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" + entity.getName()); *fH_lG%
} ./&zO{|0]
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publicList findByNamedQuery(finalString 'uKkl(==%
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namedQuery){ T~o{woq}g
return getHibernateTemplate qQxA@kdd
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().findByNamedQuery(namedQuery); (e8G
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} LZc$:<J<6
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publicList findByNamedQuery(finalString query, a\{1UD
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finalObject parameter){ 8L-4}!~C
return getHibernateTemplate "<w2v'6S
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().findByNamedQuery(query, parameter); ~3bZ+*H>
} h^A3 0f_x
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publicList findByNamedQuery(finalString query, )jlP
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finalObject[] parameters){ 3xzkZ8]/
return getHibernateTemplate k]Alp;hVd
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().findByNamedQuery(query, parameters); GjeUUmr
} Cx+WLD
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publicList find(finalString query){ &