Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 :!`"GaTy
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 -+#%]P8l
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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 aF{_"X2
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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 <$~lFV
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分页支持类: M tN>5k c
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java代码: ~ZHjP_5Q
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package com.javaeye.common.util; 1^~&"s U
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import java.util.List; o>el"0rn.h
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publicclass PaginationSupport { +HK4sA2;
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publicfinalstaticint PAGESIZE = 30; yk+ 50/L
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privateint pageSize = PAGESIZE; i]JTKL{\q
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privateList items; Kb.qv)6i*
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privateint totalCount; wu41Mz7
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privateint[] indexes = newint[0]; L.Y3/H_
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privateint startIndex = 0; z+"tAVB[i
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public PaginationSupport(List items, int B=_w9iVN
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totalCount){ ZlT }cA/n
setPageSize(PAGESIZE); pu-HEv}]a|
setTotalCount(totalCount); eV;r /4
setItems(items); th?+TNb^
setStartIndex(0); 9^gYy&+>6]
} E
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public PaginationSupport(List items, int '\:4Ijp<"
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totalCount, int startIndex){
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setPageSize(PAGESIZE); peQwH
setTotalCount(totalCount); 6FUW^dt
setItems(items); m4:c$5
setStartIndex(startIndex); ^&zCPUH
} @CprC]X
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public PaginationSupport(List items, int -JW~_Q[
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totalCount, int pageSize, int startIndex){ 5NU{y+
setPageSize(pageSize); Ln"wjO,
setTotalCount(totalCount); ;kFD769DLw
setItems(items); ClG%zE&i
setStartIndex(startIndex); 2qMiX|Y
} wQ_4_W
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publicList getItems(){ :@A&HkF
return items; Y
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} /K=OsMl2b8
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publicvoid setItems(List items){ L2}\Ah"[
this.items = items; /6x&%G:m#
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publicint getPageSize(){ ["-rDyP
return pageSize; z0"t]4s
} <Ap_#
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publicvoid setPageSize(int pageSize){ Gh;\"Qx
this.pageSize = pageSize; l;?:}\sI=
} pUIN`ya[[
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publicint getTotalCount(){ A8{jEJ=)P
return totalCount; ZmA}i`
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publicvoid setTotalCount(int totalCount){ RS5<] dy
if(totalCount > 0){ f:o.[4p2
this.totalCount = totalCount; M2$/x`\-~
int count = totalCount / E`HoJhB
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pageSize; L.n@;*
if(totalCount % pageSize > 0) ]'.qRTz'\t
count++; \CB^9-V3
indexes = newint[count]; !np_B0`
for(int i = 0; i < count; i++){ |t,sK aL
indexes = pageSize * $BqiC!~
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} |G j.E
}else{ _@5Xmr
this.totalCount = 0; _3/u#'m0
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} ym;]3<I?I[
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publicint[] getIndexes(){ g2OnLEF]s
return indexes; pPReo)
} ~q>jXi
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publicvoid setIndexes(int[] indexes){ E-A9lJWr
this.indexes = indexes; Gp9 <LB\,
} }m:paB"3
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publicint getStartIndex(){
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return startIndex; >a;a8EA<O
}
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publicvoid setStartIndex(int startIndex){ `?VK(<w0q
if(totalCount <= 0) Gb')a/
this.startIndex = 0; 9z,sn#-t
elseif(startIndex >= totalCount) O4rjGTRF
this.startIndex = indexes &4Z8df!
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[indexes.length - 1]; {`HbpM<=m]
elseif(startIndex < 0) -rDfDdT
this.startIndex = 0; g=:o 'W$@
else{ #2=l\y-#
this.startIndex = indexes ~WrpJjI[
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[startIndex / pageSize]; q<}IO
} h#1:ypA6l
} [^"}jbn/
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publicint getNextIndex(){ ,Yag! i>;
int nextIndex = getStartIndex() + 175e:\Tw
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pageSize; *q}yfa35eR
if(nextIndex >= totalCount) Dj/Hz\
return getStartIndex(); l;-2hZ
else :3F[!y3b
return nextIndex; 3.movkj
} m"L^tSD~
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publicint getPreviousIndex(){ %_ew{ff|
int previousIndex = getStartIndex() - |5>Tf6$(
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pageSize; :k9T`Aa]
if(previousIndex < 0) gs<~)&x
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else ~n -N
return previousIndex; 4m~y%>
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} S{llpp{E
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} gY+d[3N
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抽象业务类 =t N}4
java代码: ybpOk
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/** D)MFii1J~
* Created on 2005-7-12 V;^-EWNj
*/ OcB&6!1u
package com.javaeye.common.business; o^@#pU <
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import java.io.Serializable; }:?*n:g5
import java.util.List; r@JMf)a]
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import org.hibernate.Criteria; S))B^).0-
import org.hibernate.HibernateException; e@c8Ce|0
import org.hibernate.Session; e"1mdw"
import org.hibernate.criterion.DetachedCriteria; a|TUH+|
import org.hibernate.criterion.Projections; p$F`9_bZ
import !" FEp
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org.springframework.orm.hibernate3.HibernateCallback; vJr,lBHEk
import G%Lt>5*!nE
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org.springframework.orm.hibernate3.support.HibernateDaoS ZKW1HL ]m
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upport; Dhm;K$T
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import com.javaeye.common.util.PaginationSupport;
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public abstract class AbstractManager extends C!_=L?QT^
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HibernateDaoSupport { O-0 5.
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privateboolean cacheQueries = false; ^?|4<Rm
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privateString queryCacheRegion; ;=2JbA+"G
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publicvoid setCacheQueries(boolean k
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cacheQueries){ AW;xlY= g
this.cacheQueries = cacheQueries; Sc3{Y+g
} 8\nka5
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publicvoid setQueryCacheRegion(String "z6p=B"?3
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queryCacheRegion){ Ww~C[8q
this.queryCacheRegion = +dCR$<e9r
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queryCacheRegion; j*?E~M.'1K
} ?gu!P:lZS
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publicvoid save(finalObject entity){ EId>%0s5
getHibernateTemplate().save(entity); Y q/vym-O5
} Gqq<-drR
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publicvoid persist(finalObject entity){ A+Bq5mik
getHibernateTemplate().save(entity); EAh|$~X
} (7_ezWSl>
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publicvoid update(finalObject entity){ +U'n|>t9
getHibernateTemplate().update(entity); vWW Q/^
} A[4HD!9=
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publicvoid delete(finalObject entity){ oGXcu?ft
getHibernateTemplate().delete(entity); !9qw
} o8g]ho
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publicObject load(finalClass entity, ("f~gz<<
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finalSerializable id){ K7$Q.
return getHibernateTemplate().load p]e.E`'S
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(entity, id); aA%x9\Y
} ?y%Mm09
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publicObject get(finalClass entity, J>hjIN
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finalSerializable id){ )-6>!6hZ
return getHibernateTemplate().get SXXO#
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(entity, id); F&k<