Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 t6-He~
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 }U <T>0
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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 t~_j+k0K#
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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 %C8p!)Hu
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分页支持类: poLzgd
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java代码: iYbp^iVg
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package com.javaeye.common.util; 4I"%GN[tA
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import java.util.List; &8=wkG%
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publicclass PaginationSupport { I^}q;L![\
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publicfinalstaticint PAGESIZE = 30; u.\FNa
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privateint pageSize = PAGESIZE; QuB`}rfLf
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privateList items; .\Z/j
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privateint totalCount; h=?V)WSM
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privateint[] indexes = newint[0]; ]o!rK<
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privateint startIndex = 0; 1gK<dg
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public PaginationSupport(List items, int +qPpPjG;
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totalCount){ U-~6<\Mf
setPageSize(PAGESIZE); Np2I*l6W
setTotalCount(totalCount); 2SjH7
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setItems(items); vJ
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setStartIndex(0); !O*'mX
} ^l,(~03_
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public PaginationSupport(List items, int Xu.Wdl/{Ra
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totalCount, int startIndex){ |2Krxi3*
setPageSize(PAGESIZE); v|K,
setTotalCount(totalCount); 3p+V~n.+
setItems(items); @p$Nw.{'
setStartIndex(startIndex); l1 M
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} @~=*W5
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public PaginationSupport(List items, int mRurGaR
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totalCount, int pageSize, int startIndex){ *dAQ{E(rO
setPageSize(pageSize); ]NEr]sc-"F
setTotalCount(totalCount); ~cf*Oq
setItems(items); hR4\:s+[
setStartIndex(startIndex); Y:?cWO
} t6,bA1*5y
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publicList getItems(){ !&eKq?P{j
return items; `iQ])C^d
} xCQLfXK7
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publicvoid setItems(List items){ )K}-z+$)k
this.items = items; Vsj1!}X:
} b)[2t^zG
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publicint getPageSize(){ 0X<U.Sxn
return pageSize; c:[8ng 2v
} Oxp!G7qfo
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publicvoid setPageSize(int pageSize){ v[2N-
this.pageSize = pageSize; M*-]<!))7
} z 0}JiW R
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publicint getTotalCount(){ %MM)5MsB
return totalCount; U^;|as
} KaIkO8Dq0
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publicvoid setTotalCount(int totalCount){ ] :SbvsPm
if(totalCount > 0){ H[Q3M~_E
this.totalCount = totalCount; 2PC:F9dh\
int count = totalCount / t ch;_7?
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pageSize; $vLGX>H
if(totalCount % pageSize > 0) VvUP;o&/
count++; u*m|o8
indexes = newint[count]; N[zR%(YS
for(int i = 0; i < count; i++){ 0O!A8FA0
indexes = pageSize * ^4~?]5Y\
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} ILIv43QKM(
}else{ }F';"ybrU)
this.totalCount = 0; UZ;FrQ(l{
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} 2[CHiB*>
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publicint[] getIndexes(){ "!R*f $
return indexes; ;3\'}2^|l
} (,R\6
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publicvoid setIndexes(int[] indexes){ ?P;=_~X
this.indexes = indexes; e8 c.&j3m
} "#8I &xZK
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publicint getStartIndex(){ ~IFafAO&
return startIndex; k{
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} ?!u9=??
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publicvoid setStartIndex(int startIndex){ JYnyo$m/
if(totalCount <= 0) TMD*-wYr
this.startIndex = 0; d~KTUgH'<
elseif(startIndex >= totalCount) c1xX)cF
this.startIndex = indexes $+ORq3
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[indexes.length - 1]; H<"EE15
elseif(startIndex < 0) QN;GMX5&
this.startIndex = 0; ]l}bk]
else{ _^D -nk?
this.startIndex = indexes epI~w
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[startIndex / pageSize]; LhSXz>AX
} `_x#`%!#2
} k- exqM2x=
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publicint getNextIndex(){ p.5 *`, )
int nextIndex = getStartIndex() + g&\;62lV%
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pageSize; v}<z_i5/C.
if(nextIndex >= totalCount) 0zk054F'
return getStartIndex(); Jw^h<z/Ux
else }tJMnq/m($
return nextIndex; -|P7e
} Ch]q:o4
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publicint getPreviousIndex(){ GS*_m4.Ry6
int previousIndex = getStartIndex() - u4xJ-Vu
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pageSize; eGUe#(I /
if(previousIndex < 0) qc3?Aplj
return0; +A%zFF3
else !q8A!P4|'
return previousIndex; +B7UGI
} Q;@w\_OR
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} v%QCp
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抽象业务类 (CE2]Nv9")
java代码: 7KtgR=-Lb
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/** AI .2os*
* Created on 2005-7-12 kEg~yN
*/ <4;f?eu
package com.javaeye.common.business; G+iJS!=
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import java.io.Serializable; L~_zR >
import java.util.List; =OR&,xt
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import org.hibernate.Criteria; l`];CALA4
import org.hibernate.HibernateException; XB%`5wwd
import org.hibernate.Session; ,7e 2M@=
import org.hibernate.criterion.DetachedCriteria; =PoPp
import org.hibernate.criterion.Projections; hy:K) _
import U4Pk^[,p1G
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org.springframework.orm.hibernate3.HibernateCallback; SHCVjI6
import 98WJ"f_ #
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org.springframework.orm.hibernate3.support.HibernateDaoS gwYTOs^
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upport; hpticW|
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import com.javaeye.common.util.PaginationSupport; (yz8}L3
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public abstract class AbstractManager extends Vs[!WJ
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HibernateDaoSupport { 14\!FCe)!
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privateboolean cacheQueries = false; "?sLi
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privateString queryCacheRegion; 2qkC{klC^M
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publicvoid setCacheQueries(boolean 7h/{F({r=
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cacheQueries){ 0 .p $q
this.cacheQueries = cacheQueries; VAR/"
} |zL .PS
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publicvoid setQueryCacheRegion(String uO-R:MC
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queryCacheRegion){ 8%#uZG\}
this.queryCacheRegion = =;xlmndT,
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queryCacheRegion; `24:Eg6r
} ]t3
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publicvoid save(finalObject entity){ ByZ.!~
getHibernateTemplate().save(entity); PZl(S}VY
} Dy^4^ J5+
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publicvoid persist(finalObject entity){ !ZV#~t:)
getHibernateTemplate().save(entity); y]\R0lR
} +e"}"]n
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publicvoid update(finalObject entity){ BmUzsfD
getHibernateTemplate().update(entity); 3B"rI
} $Y0bjS2J
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publicvoid delete(finalObject entity){ (A&@
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getHibernateTemplate().delete(entity); (^Do#3
} ddHIP`wb
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publicObject load(finalClass entity, cuk2\> Xl
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finalSerializable id){ L}a3!33)C
return getHibernateTemplate().load <p0$Q!^dK=
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(entity, id); ,n!xzoX_
} v
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publicObject get(finalClass entity, Jp-ae0 Ewa
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finalSerializable id){ $=m17GD
return getHibernateTemplate().get ^]R0d3?>\
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(entity, id); lIFU7g
} )#ujF~w>
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publicList findAll(finalClass entity){ V!<#E)-?<
return getHibernateTemplate().find("from 4COf H7Al9
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" + entity.getName()); xBG1up<z
} -5ec8m8
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publicList findByNamedQuery(finalString "DN `@
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namedQuery){ BVNh>^W5B
return getHibernateTemplate v/haUPWF\
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().findByNamedQuery(namedQuery); jw[`_
} tQ}gBE63
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publicList findByNamedQuery(finalString query, 5Q}@Y3 i=
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finalObject parameter){ E0pQRGPA
return getHibernateTemplate =%
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().findByNamedQuery(query, parameter); '} kq@
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publicList findByNamedQuery(finalString query, T:&+#0<
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finalObject[] parameters){ C(P$,;6
return getHibernateTemplate Jr9}'l8
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().findByNamedQuery(query, parameters); tVcs r
} ({9!P30:
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publicList find(finalString query){ <Gw<