Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 |riP*b
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 ^&Exa6=*FT
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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 E }L Hp
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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 ~iL^KeAp
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分页支持类: >!963>D R
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java代码: >jm(2P(R
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package com.javaeye.common.util; wlS/(:02
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import java.util.List; nm^HL|
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publicclass PaginationSupport { F/5&:e?( )
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publicfinalstaticint PAGESIZE = 30; 0At0`Q#
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privateint pageSize = PAGESIZE; D"7}&Ry:
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privateList items; c~ss^[qx|
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privateint totalCount;
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privateint[] indexes = newint[0]; 4~fYG| a
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privateint startIndex = 0; `fv5U%
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public PaginationSupport(List items, int Qqm?%7A1
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totalCount){ ,\4]uZ<
setPageSize(PAGESIZE); ZW4f "
setTotalCount(totalCount); MAh1tYs4D
setItems(items); o[Iu9.zJpy
setStartIndex(0); %>Kba M1b
} b8WtNVd
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public PaginationSupport(List items, int 4XkI? l
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totalCount, int startIndex){ 7=-Yxt
setPageSize(PAGESIZE); 0 R6:3fV6R
setTotalCount(totalCount);
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setItems(items); mU5Ox4>&9
setStartIndex(startIndex); gInh+XZs
} 2nI^fVR%\
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public PaginationSupport(List items, int E!I4I'
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totalCount, int pageSize, int startIndex){ $.B}zY{
setPageSize(pageSize); jd
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setTotalCount(totalCount); 5pRVA
setItems(items); d{C8}U
setStartIndex(startIndex); (hv}K*c{
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publicList getItems(){ tfe'].uT
return items; -r0oO~KT
} 8R;E+B{
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publicvoid setItems(List items){ i l%9j
this.items = items; v\kd78,
} kaCn@$
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publicint getPageSize(){ CR|>?9V
return pageSize; (fO~nN{F
} ):Ekf2
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publicvoid setPageSize(int pageSize){ ,z0E2
this.pageSize = pageSize; :/NP8$~@j
} vF@.BM>
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publicint getTotalCount(){ Zo,]Dx
return totalCount; yhyh\.
} 8ZO~=e
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publicvoid setTotalCount(int totalCount){ v/wR)9
if(totalCount > 0){ q.lh
this.totalCount = totalCount; An
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int count = totalCount / @{8805Dp
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pageSize; sZU
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if(totalCount % pageSize > 0) MK4CggoC
count++; .O.fD
indexes = newint[count]; %M05& <
for(int i = 0; i < count; i++){ vYG$>*
indexes = pageSize * 2l4`h)_q
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} \Ng[lN
}else{ 1)
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this.totalCount = 0; =TXc- J
} K+c>Cj}H
} 'MIM_m)H
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publicint[] getIndexes(){ ,1e@Y~eZ
return indexes; 1uhSP!b
} = G3A}
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publicvoid setIndexes(int[] indexes){ C/pu]%n@4
this.indexes = indexes; <8/lHQ^\)
} &,`P%a&k
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publicint getStartIndex(){ \t@|-`
return startIndex; =").W \,
} ZpY"P6
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publicvoid setStartIndex(int startIndex){ L"!BN/i_
if(totalCount <= 0) ^zaN?0%S33
this.startIndex = 0; meV
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elseif(startIndex >= totalCount) \Tj(]
this.startIndex = indexes mCx6$jz
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[indexes.length - 1]; 7gQ~"Q
elseif(startIndex < 0) }'
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this.startIndex = 0; /c 1FFkq|K
else{ 2]*2b{gF,
this.startIndex = indexes !xK`:[B
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[startIndex / pageSize]; pc%_:>
} FeFH_
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publicint getNextIndex(){ etH%E aF[
int nextIndex = getStartIndex() + ",T-'>h$2R
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pageSize; %/&?t`%H
if(nextIndex >= totalCount) u|D_"q~+6
return getStartIndex(); I(Yyg,1Z
else ,9p
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return nextIndex; QY<2i-A
} K(HP PM\
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publicint getPreviousIndex(){ HIi5kv]}|
int previousIndex = getStartIndex() - PGHl:4`Es!
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pageSize; 3say&|kJ
if(previousIndex < 0) Vj"B#
return0; e? fFh,a
else !285=cxz
return previousIndex; fNx3\<~V=
} m>'sM1s
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} fG5 U' Vw
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抽象业务类 t3b%f`D
java代码: -[4Xg!apO
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/** cSBYC_LU
* Created on 2005-7-12 BXVmt!S5F
*/ &/4W1=>(
package com.javaeye.common.business; CC>]Gc7
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import java.io.Serializable; hof:+aW
import java.util.List; &gZ5dTj>
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import org.hibernate.Criteria; >v`lsCGb
import org.hibernate.HibernateException; \&J7>vu^y
import org.hibernate.Session; V7!x-E/
import org.hibernate.criterion.DetachedCriteria; s0Z
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import org.hibernate.criterion.Projections; y.KO :P?5{
import jZ NOt
V#VN%{
org.springframework.orm.hibernate3.HibernateCallback; dy_:-2S
import vfVj=DYj
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org.springframework.orm.hibernate3.support.HibernateDaoS #o1=:PQaC
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upport; >EY3/Go>
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import com.javaeye.common.util.PaginationSupport; MEB it
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public abstract class AbstractManager extends d!eYqM7-G
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HibernateDaoSupport { e7wSOs
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privateboolean cacheQueries = false; 8OgLn?"P
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privateString queryCacheRegion; 1GzAG;UUo6
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publicvoid setCacheQueries(boolean T=ev[ mS
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cacheQueries){ |\pbir
this.cacheQueries = cacheQueries; F$)[kP,wtO
}
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publicvoid setQueryCacheRegion(String ](hE^\SC
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queryCacheRegion){ h$2</J"
this.queryCacheRegion = V:y'Qf2M
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queryCacheRegion; A0Qb 5e
} wb0L.'jyR)
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publicvoid save(finalObject entity){ AIZ]jq
getHibernateTemplate().save(entity); s7F.sg
} 5 sX+~Q
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publicvoid persist(finalObject entity){ |:gf lseE
getHibernateTemplate().save(entity); kDsFR#w&`
} ueUuJxq)
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publicvoid update(finalObject entity){ [@.!~E)P
getHibernateTemplate().update(entity); m^zUmrj[
} K|epPGRr
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publicvoid delete(finalObject entity){ tS6qWtE
getHibernateTemplate().delete(entity); (JOgy.5C~
} iUN Ib
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publicObject load(finalClass entity, rbWP78
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finalSerializable id){ X9V *UXTc
return getHibernateTemplate().load n"c[,k+R`U
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(entity, id); ,
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} bE !G JZ
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publicObject get(finalClass entity, Wi)_H$KII
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finalSerializable id){ Hquc
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return getHibernateTemplate().get Fww :$^_ k
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(entity, id); )6Fok3u
} _uy44;zq
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publicList findAll(finalClass entity){ &i6),{QN
return getHibernateTemplate().find("from T4Pgbop
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" + entity.getName()); Yi.N&