Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 #Q'#/\5
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 <$??Z;6
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据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 Y_)xytJ$
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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 q_cP<2`@V
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分页支持类: //'&a-%$^
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java代码: RM;Uq>l
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package com.javaeye.common.util; 6MNr H
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import java.util.List; lffw
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publicclass PaginationSupport { 60 %VG
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publicfinalstaticint PAGESIZE = 30; [*M':
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privateint pageSize = PAGESIZE; N\|BaZ%>|
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privateList items; jZD)c_'U
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privateint totalCount; !yd]~t
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privateint[] indexes = newint[0]; 6j!idA!'
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privateint startIndex = 0; w{ ;Sp?Os
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public PaginationSupport(List items, int e+V8I&%
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totalCount){ 5'( T*"
setPageSize(PAGESIZE); 33; '6/
setTotalCount(totalCount); IXG@$O?y/
setItems(items); N0%q66]1
setStartIndex(0); ZZ L@UO>:
} a@J/[$5
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public PaginationSupport(List items, int tW
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totalCount, int startIndex){ 'iTY?
setPageSize(PAGESIZE); c8Q}m(bhWI
setTotalCount(totalCount); icb*L ~qm
setItems(items); XOLE=zdSp
setStartIndex(startIndex); Ii&p v
} {,u})U2
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public PaginationSupport(List items, int OE}FZCXF
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totalCount, int pageSize, int startIndex){ na|sKE;{
setPageSize(pageSize); \KzH5 ?
setTotalCount(totalCount); c/igw+L()
setItems(items); 7377g'jL
setStartIndex(startIndex); BeN]D
} IJt'[&D
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publicList getItems(){ Oxa8u e?
return items; .cHkh^EDY
} %`QgG
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publicvoid setItems(List items){ zvVo-{6
this.items = items; bkc*it
} hNhEA $X5
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publicint getPageSize(){ Ctn
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return pageSize; _9JFlBx
} m"'}{3$%
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publicvoid setPageSize(int pageSize){ 8\^A;5
this.pageSize = pageSize; 9K#3JyW*
} oR,6esA+6n
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publicint getTotalCount(){ SZyORN
return totalCount; DIw_"$'At
} - U\'Emu4
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publicvoid setTotalCount(int totalCount){ %1$#fxR
if(totalCount > 0){ q2s0g*z
this.totalCount = totalCount; Mm(#N/
int count = totalCount / d#]hqy
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pageSize; k_!e5c
if(totalCount % pageSize > 0) fIl!{pv[
count++; Mn/@?K?y
indexes = newint[count]; 'A^q)hpax
for(int i = 0; i < count; i++){ 8#VD u(
indexes = pageSize * 2aX*|DGpw
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} ~D>pu%F
}else{ b,YNCb]H
this.totalCount = 0; 3F@P$4!#l
} aZCq{7Xs
} W7
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publicint[] getIndexes(){ vXRY/Zzj1
return indexes; KyfH8Na?
} M:{Aq&.
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publicvoid setIndexes(int[] indexes){ (S?Y3l|
this.indexes = indexes; 5QLK
} 2jC` '8
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publicint getStartIndex(){ >Rd~-w)!|
return startIndex; (/N&_r4x
} )0iN2L]U;
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publicvoid setStartIndex(int startIndex){ : S3+UT
if(totalCount <= 0) _1&Ar4:
this.startIndex = 0; 9i}$245lB
elseif(startIndex >= totalCount) R6Ov
this.startIndex = indexes z-606g
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[indexes.length - 1]; |Ia9bg'1U
elseif(startIndex < 0) p/?o^_s
this.startIndex = 0; 3_Xu3hNH!
else{ >>,G3/Zd*
this.startIndex = indexes F{!pii5O9
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[startIndex / pageSize]; ,d,2Q
} 8ZVQM7O
} a
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publicint getNextIndex(){ M|K^u.4
int nextIndex = getStartIndex() + h7!O
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pageSize; T1$E][@Iv
if(nextIndex >= totalCount) p>;@]!YWQ
return getStartIndex(); G:":CX"O(
else 5EcVW|(
return nextIndex; UGI<V!
} 7!pKlmQ
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publicint getPreviousIndex(){ $VvgzjrH
int previousIndex = getStartIndex() - &]#L'D!"
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pageSize; JRo/ HY+
if(previousIndex < 0) v/q-{1
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else xBVOIc[4(
return previousIndex; z6C(?R
} AtG~!)hG
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} 'R79,)|;[
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抽象业务类 2URGd#{VQ
java代码: &Mk!qE<:N
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/** J8alqs7
* Created on 2005-7-12 );7
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package com.javaeye.common.business; 3!{imQT
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import java.io.Serializable; N3|:MMl
import java.util.List; )}`z<)3jP
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import org.hibernate.Criteria; #dWz,e3
import org.hibernate.HibernateException; q`'f
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import org.hibernate.Session; OuTV74
import org.hibernate.criterion.DetachedCriteria; M?eP1v:<+G
import org.hibernate.criterion.Projections; pT]hPuC
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org.springframework.orm.hibernate3.HibernateCallback; {Ya$Q#l
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import com.javaeye.common.util.PaginationSupport; +?{"Q#.>;
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public abstract class AbstractManager extends )A7^LLzG
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HibernateDaoSupport { <eG| `
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privateboolean cacheQueries = false; gu(:'5cX
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privateString queryCacheRegion; _YF>Y=D-
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publicvoid setCacheQueries(boolean ]!B0= XP
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cacheQueries){ MeEa| .
this.cacheQueries = cacheQueries; T UcFx_
} ^Spu/55_
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publicvoid setQueryCacheRegion(String c| ^I}
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queryCacheRegion){ ?Ij(B}D
this.queryCacheRegion = T7,]^
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} =GX5T(P8k
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publicvoid save(finalObject entity){ j 2ag
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getHibernateTemplate().save(entity); &j F'2D^_
} *-nO,K>y`
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publicvoid persist(finalObject entity){ el9P@r0
getHibernateTemplate().save(entity); mAW.p=;
} u5oM;#{@-
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publicvoid update(finalObject entity){ PEf yHf7`
getHibernateTemplate().update(entity); }HoCfiE=X
} Fc5.?X-
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publicvoid delete(finalObject entity){ O+}py{ st
getHibernateTemplate().delete(entity); N#T'}>t y
} V+E8{|dYL
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publicObject load(finalClass entity, {v|!];i
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finalSerializable id){ +F8{4^w1
return getHibernateTemplate().load z{rV|vQ
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(entity, id); <1|[=$w
} G"<#tif9K
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publicObject get(finalClass entity, hC\
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finalSerializable id){ \?xM%(:<Q
return getHibernateTemplate().get V"YeF:I
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(entity, id); )^ah, ;(
} [CJ<$R !
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publicList findAll(finalClass entity){ U]cXE1c>F
return getHibernateTemplate().find("from $tmdE)"&
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} ybBmg'198
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publicList findByNamedQuery(finalString ZxF`i>/h
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