Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 !Kg']4
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根
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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 3dj|jw5
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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 3U+FXK#6
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分页支持类: 62qjU<Z
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java代码: ;VAyH('~
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package com.javaeye.common.util; *1<kYrB
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import java.util.List; Gw$ 5<%sB
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publicclass PaginationSupport { )B0%"0?`8
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publicfinalstaticint PAGESIZE = 30; /0XMQy
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privateint pageSize = PAGESIZE; uoI7'
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privateList items; pOo016afmA
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privateint totalCount; WXY'%G
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privateint[] indexes = newint[0]; _<F)G,=
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privateint startIndex = 0; jTcv&`fAz
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public PaginationSupport(List items, int ;x/eb g
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totalCount){ V9BW@G@9
setPageSize(PAGESIZE); '1gfXC
setTotalCount(totalCount); N8dxgh!,
setItems(items); ?l^Xauk4Pj
setStartIndex(0); "
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} &btI#
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public PaginationSupport(List items, int 5z!$=SFz
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totalCount, int startIndex){ QE\
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setPageSize(PAGESIZE); JUpV(p"-r
setTotalCount(totalCount); S*V}1</L
setItems(items); -PE_q Z^
setStartIndex(startIndex); Zob/H+]
} hcj}6NXc
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public PaginationSupport(List items, int S-7&$n
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totalCount, int pageSize, int startIndex){ K8sRan[4}
setPageSize(pageSize); - |g"q|
setTotalCount(totalCount); '%QCNO/
setItems(items); vyIH<@@p7
setStartIndex(startIndex); E>|X'I?r^
} *(F`NJ 3
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publicList getItems(){ w>&*-}XX
return items; QS&B"7;g
} bItcF$#!!!
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publicvoid setItems(List items){
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this.items = items; {7OHEArv
} c0gVW~I1
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publicint getPageSize(){
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return pageSize; 67II9\/
} #_wq#rF
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publicvoid setPageSize(int pageSize){ >5t%_/yeB
this.pageSize = pageSize; 9qB0F_xl
} q*l4h u%3
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publicint getTotalCount(){ ZNX38<3h
return totalCount; l4oyF|oJTH
} Icnhet4
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publicvoid setTotalCount(int totalCount){ qUkMNo3
if(totalCount > 0){ VI&x1C
this.totalCount = totalCount; FvxM
int count = totalCount / _s=H|#l
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pageSize; 'BjTo*TB]Z
if(totalCount % pageSize > 0) ,twx4r^
count++; FmL]|~
indexes = newint[count]; hJ}i+[~be
for(int i = 0; i < count; i++){ j<B9$8x&
indexes = pageSize * vwU1}H
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} h xO}'`:
}else{ bO=|utpk
this.totalCount = 0; h+FM?ct6}
} "jFf}"
} )D,KG_7l
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publicint[] getIndexes(){ A9$x8x*Lt
return indexes; o$rjGa l
} |1U_5w
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publicvoid setIndexes(int[] indexes){ >NRppPqL
this.indexes = indexes; ky2 bj}"p9
} FlBhCZ|^
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publicint getStartIndex(){ r7m~.M+W"
return startIndex; CJ IuMsZ
} zw/AZLS
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publicvoid setStartIndex(int startIndex){ D@O`"2
if(totalCount <= 0) 4ba*Nc*Yc
this.startIndex = 0; cMw<3u\
elseif(startIndex >= totalCount) *GT=U(d
this.startIndex = indexes oJ74Mra
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[indexes.length - 1]; O
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elseif(startIndex < 0) EhcJE;S)
this.startIndex = 0; `\kihNkJn3
else{ a5D|#9
this.startIndex = indexes G,u=ngZ]
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[startIndex / pageSize]; q&3
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} gq7tSkH@
} u,sR2&Fe
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publicint getNextIndex(){ vrnvv?HPrR
int nextIndex = getStartIndex() + _%w680b'
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pageSize; #De>EQ%
if(nextIndex >= totalCount) #,%bW[L<N
return getStartIndex(); ?d7,0Ex
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else p}1i[//S
return nextIndex; C= ~c`V5>r
} =&}@GsXdo
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publicint getPreviousIndex(){ {q-&!l|
int previousIndex = getStartIndex() - ar3L|MN
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pageSize; t#k]K]
if(previousIndex < 0) z*\_+u~u
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else 8dGsV5" *
return previousIndex; 77P\:xc
} <J/ =$u/
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} hbw(o
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抽象业务类 q~ H>rC(\
java代码: wZqYtJ
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/** cS ~OxAS
* Created on 2005-7-12 3:)z+#Uk6
*/ ARKM[]
package com.javaeye.common.business; &d_^k.%y
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import java.io.Serializable; HK;NR.D
import java.util.List; K"#$",}=
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import org.hibernate.Criteria; ;Shu
import org.hibernate.HibernateException; l A ^1}
import org.hibernate.Session; _D '(R
import org.hibernate.criterion.DetachedCriteria; [&)]-2w2
import org.hibernate.criterion.Projections; OUX7
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import uYh!04u
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org.springframework.orm.hibernate3.HibernateCallback; /0s1;?
import a=z] tTs4
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org.springframework.orm.hibernate3.support.HibernateDaoS e &6 %
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upport; E/;t6&6
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import com.javaeye.common.util.PaginationSupport; {{G)Ry*pb
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public abstract class AbstractManager extends |xO*!NR
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HibernateDaoSupport { z0z@LA4k6@
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privateboolean cacheQueries = false; "Ep"$d
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privateString queryCacheRegion; vObZ|>.J~O
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publicvoid setCacheQueries(boolean 70'OS:J=\
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cacheQueries){ s,z~qL6&
this.cacheQueries = cacheQueries; 19!?oeOU
} PX:#+bq1
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publicvoid setQueryCacheRegion(String ,06Sm]4L,
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queryCacheRegion){ w"hd_8cO
this.queryCacheRegion = BU`X_Z1)
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queryCacheRegion; odv2 (\
} 7'0Vb!(
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publicvoid save(finalObject entity){ Ji4p6$ .j-
getHibernateTemplate().save(entity); m,.Y:2?*V
} +VIA@`4
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publicvoid persist(finalObject entity){ c*bvZC^6
getHibernateTemplate().save(entity); je] DR~
} K~W(ZmB
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publicvoid update(finalObject entity){ 6^`iuC5
getHibernateTemplate().update(entity); X\^nV
} [doEArwn
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publicvoid delete(finalObject entity){ dlu*s(O"
getHibernateTemplate().delete(entity); wJp<ZL
} "{q#)N
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publicObject load(finalClass entity, !_fDL6a-
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finalSerializable id){ NxP(&M(
return getHibernateTemplate().load &:&'70Ya
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(entity, id);
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} |T:R.=R$~
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publicObject get(finalClass entity, Qqm?%7A1
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finalSerializable id){ HC iRk1
return getHibernateTemplate().get %rwvY`\
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