Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 Qn6'E
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 |cUTP!iy
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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 d%8hWlffz
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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 !-)Hog5\
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分页支持类: r<
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java代码: ,p {|f}0
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package com.javaeye.common.util; *`7cvt5]IM
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import java.util.List; :VGvL"Kro
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publicclass PaginationSupport { ~QQi{92
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publicfinalstaticint PAGESIZE = 30; kzcl
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privateint pageSize = PAGESIZE; 5R"iF+p4
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privateList items; 2Sz?r d,0f
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privateint totalCount; f_I6g uDPz
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privateint[] indexes = newint[0]; 68
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privateint startIndex = 0; ?H3Ls~R
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public PaginationSupport(List items, int L"e8S%UqX
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totalCount){ `o4alK\
setPageSize(PAGESIZE); Y- esD'MD
setTotalCount(totalCount); VB=$D|Ll
setItems(items); #6* j+SX^
setStartIndex(0); %PW_v~sg
} 2)cq!Zv
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public PaginationSupport(List items, int #2{H!jr
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totalCount, int startIndex){ }RvinF:5
setPageSize(PAGESIZE); -q'G]}
setTotalCount(totalCount); X?kw=x{2P
setItems(items); KsVN<eR{
setStartIndex(startIndex); 7.}Vvg#G
} s_:7dD
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public PaginationSupport(List items, int 9
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totalCount, int pageSize, int startIndex){ ^V,?n@c!
setPageSize(pageSize); JiH^N!
setTotalCount(totalCount); p^J=*jm)x
setItems(items); {B|)!_M#
setStartIndex(startIndex); u2\QhP 9
} &pCa{p
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publicList getItems(){ 9+S$,|9
return items; KUD&vqx3
} C^QpVt-T
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publicvoid setItems(List items){ wX/0.aZ |
this.items = items; z'"e|)
} Es]:-TR
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publicint getPageSize(){ ?5VPV9EX
return pageSize; '/O >#1
} ^W#161&
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publicvoid setPageSize(int pageSize){ 8=kIN-l_
this.pageSize = pageSize; #X 1 GL
} X?f\j"v
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publicint getTotalCount(){ \%BII>VS
return totalCount; }o,-@R~
} \k
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publicvoid setTotalCount(int totalCount){ v0q(k;Ya
if(totalCount > 0){ 6~b)Hc/
this.totalCount = totalCount; ^GL>xlZ(
int count = totalCount / sx1w5rj.Y0
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pageSize; W*.j=?)\[
if(totalCount % pageSize > 0) >a%C'H.A9
count++; 0)Nu
indexes = newint[count]; +%sMd]$,n
for(int i = 0; i < count; i++){ /Pv
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indexes = pageSize * CNMcQP
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} xwSi.~.
}else{ i(O+XQ}Fyx
this.totalCount = 0; 9Ib#A
} y?Cq{(
} (ay((|)
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publicint[] getIndexes(){ Yx[B*] 2
return indexes; P!xN]or]u
} Wd>gOE
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publicvoid setIndexes(int[] indexes){ eHE?#r16Z
this.indexes = indexes; XP%/*am
} IoKN.#;^
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publicint getStartIndex(){ g>*P}r~;^b
return startIndex;
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} /<
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publicvoid setStartIndex(int startIndex){ .o(S60iH!(
if(totalCount <= 0) vw2yOLRX
this.startIndex = 0; O&g$dK!Rad
elseif(startIndex >= totalCount) 2%_UOEayU
this.startIndex = indexes ,z5B"o{Et
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[indexes.length - 1]; FE'F@aS\
elseif(startIndex < 0) 1| XC$0
this.startIndex = 0; |SX31T9rG
else{ R LNto5?
this.startIndex = indexes S; Fj9\2)I
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[startIndex / pageSize]; pq +~|
} )0XJOm
} eKvQS}11
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publicint getNextIndex(){ hqc)Ydg_%
int nextIndex = getStartIndex() + |C`.m|
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pageSize; E}lNb
if(nextIndex >= totalCount) A}W}H;8x
return getStartIndex(); v|IG
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else _1ax6MwX
return nextIndex; >NJ`*M
} WH l vd
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publicint getPreviousIndex(){ .azA1@V|
int previousIndex = getStartIndex() -
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pageSize; m{?uR.O
if(previousIndex < 0) U2CCjAgRs
return0; yL#2|t(
else qr'P0+|~5
return previousIndex; v=J[p;H^H
} eh /QFm
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抽象业务类 !Ct'H1J-
java代码: 94'0X
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/** uePa4e!
* Created on 2005-7-12 +
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*/ GF17oMi
package com.javaeye.common.business; ?TMrnR/d
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import java.io.Serializable; \QP1jB
import java.util.List; -_T@kg[0zB
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import org.hibernate.Criteria; ^"{txd?6
import org.hibernate.HibernateException; j-(k`w\
import org.hibernate.Session; zC|y" PTw
import org.hibernate.criterion.DetachedCriteria; (aX6jdvo
import org.hibernate.criterion.Projections; xB|?}uS-
import Uu(FFd~3
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org.springframework.orm.hibernate3.HibernateCallback; hngdeGa
import 8omk4 ;
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org.springframework.orm.hibernate3.support.HibernateDaoS '[`pU>9
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upport; !~QmY,R
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import com.javaeye.common.util.PaginationSupport; aqoxj[V^3L
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public abstract class AbstractManager extends <?Y.w1
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HibernateDaoSupport {
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privateboolean cacheQueries = false; eGk`Z>
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privateString queryCacheRegion; &\
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publicvoid setCacheQueries(boolean MB!$s_~o#L
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cacheQueries){ .?LP$O=
this.cacheQueries = cacheQueries; Xw]L'+V=
} 1zWEK]2.R
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publicvoid setQueryCacheRegion(String +?y9EZB%
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queryCacheRegion){ =N<Z@'c
this.queryCacheRegion = rF)[ Sed:T
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queryCacheRegion; kdp- |9
} n81z0lnr
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publicvoid save(finalObject entity){ #7"*Pxb#A
getHibernateTemplate().save(entity); 65AG#O5R
} D9-D%R,
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publicvoid persist(finalObject entity){ rh$q]
getHibernateTemplate().save(entity); +5oK91o[y
} bqSp4TI
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publicvoid update(finalObject entity){ &C6Z{.3V
getHibernateTemplate().update(entity); ~ -zch=+u
} @ !m+s~~]h
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publicvoid delete(finalObject entity){ g4NbzU[I
getHibernateTemplate().delete(entity); $i.)1.x
} jyFXAs2
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publicObject load(finalClass entity, 1jkMje
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finalSerializable id){ az;o7[rI^
return getHibernateTemplate().load tp?<
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(entity, id); q8[I`
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} (vb8Mk
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publicObject get(finalClass entity, ZhYOz
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finalSerializable id){ ;.|).y1/`
return getHibernateTemplate().get Gk2R:\/Y
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(entity, id); \A=:6R%Qb
} '
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publicList findAll(finalClass entity){ $G.ws
return getHibernateTemplate().find("from -$+`v<[r
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" + entity.getName()); ,/6 aA7(
} UCL aCt -
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publicList findByNamedQuery(finalString 9Bw.Ih[Z
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namedQuery){ #0gwN2Nv"L
return getHibernateTemplate -3T~+
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().findByNamedQuery(namedQuery); 7-`iI(N<
} _5JwJcQ
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publicList findByNamedQuery(finalString query, \aB>Q"pS
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finalObject parameter){ v5`Q7ZZ
return getHibernateTemplate m[%*O#_
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().findByNamedQuery(query, parameter); 3 F ke#t
} }J-+^
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