Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ;oOv/3
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 \,UZX&ip
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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 ,8G{]X)
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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 x|64l`Vp(:
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分页支持类: M[5[N{
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java代码: `\Ku]6J]5
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package com.javaeye.common.util; XEM'}+d
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import java.util.List; q~K(]Ya/
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publicclass PaginationSupport { qF)<H
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publicfinalstaticint PAGESIZE = 30; nxm$}!Df
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privateint pageSize = PAGESIZE; (WlIwKP
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privateList items;
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privateint totalCount; \a^,sV
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privateint[] indexes = newint[0]; Wo$%9!W
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privateint startIndex = 0; cTZ.}eLh
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public PaginationSupport(List items, int \[2lvft!
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totalCount){ n_D8JF
setPageSize(PAGESIZE); xgsjm))
setTotalCount(totalCount); "$HbK
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setItems(items); [f~N_G6I^o
setStartIndex(0); /nx'Z0&+X
} :7N3N
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public PaginationSupport(List items, int wRNroQ
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totalCount, int startIndex){ ?ne_m:J[
setPageSize(PAGESIZE); bEuaOBc
setTotalCount(totalCount); R!
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setItems(items); oSb, :^Wl
setStartIndex(startIndex); N@o?b
} xh@-g|+g
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public PaginationSupport(List items, int g\oSG)
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totalCount, int pageSize, int startIndex){ "v*8_El
setPageSize(pageSize); 1[nG}
setTotalCount(totalCount); ]Al;l*yw
setItems(items); C"T1MTB
setStartIndex(startIndex); J<n+\F-s
} ;+ "f
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publicList getItems(){ wgeNs9L
return items;
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} >:sUL<p
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publicvoid setItems(List items){ t6N*6ld2b
this.items = items; q!'rz
} Z@D*1\TG=
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publicint getPageSize(){
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return pageSize; ]ekk }0
} 3*_fzP<R
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publicvoid setPageSize(int pageSize){ T".]m7!
this.pageSize = pageSize; 9$K;Raz%
} ?0*8RK
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publicint getTotalCount(){ Nf,Z;5e
return totalCount; BF|(!8S$U
} T>>YNaUL
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publicvoid setTotalCount(int totalCount){ y9Y1PH7G
if(totalCount > 0){ ]bCq=6ZKR
this.totalCount = totalCount; ]
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int count = totalCount / l":c
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pageSize; 5R MS(
if(totalCount % pageSize > 0) d4[(8}
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count++; Tq<2`*Qs
indexes = newint[count]; i hL/n
for(int i = 0; i < count; i++){ @* 1U{`
indexes = pageSize * >gtQw!
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} Y[ reD
}else{ H!e 3~+)
this.totalCount = 0; >P KBo
} Weoj|0|t
} VUU]Pu &
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publicint[] getIndexes(){ *2"6fX[
return indexes; rk2xKm^w
} $ls[|N:y0l
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publicvoid setIndexes(int[] indexes){ AS!6XT
this.indexes = indexes; 5,"l0nrk
} wVs.Vcwr
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publicint getStartIndex(){ !%mAh81{&/
return startIndex; $Byj}^ ;1
} xk~IN%\
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publicvoid setStartIndex(int startIndex){ jPvDFT^d/
if(totalCount <= 0) 0:Xxl76v4
this.startIndex = 0; n7aU<`U
elseif(startIndex >= totalCount) pI+!92Z
this.startIndex = indexes 10Wz,vW,n
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[indexes.length - 1]; #1'\.v
elseif(startIndex < 0) a[bBT@f
this.startIndex = 0; CLD-mx|?
else{ _gNz9$S
this.startIndex = indexes 2U
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[startIndex / pageSize]; RNVbcd
} &>WWzikB*
} "e3["'
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publicint getNextIndex(){ \h<BDk*
int nextIndex = getStartIndex() + 89}Y5#W
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pageSize; Fh7'[>onw
if(nextIndex >= totalCount) 0Y=![tO8
return getStartIndex(); u#7+U\
else Q~D`cc|]
return nextIndex; vY|^/[x#B
} z(uZF3
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publicint getPreviousIndex(){ \/7i-B]G7
int previousIndex = getStartIndex() - oz'\q0
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pageSize; 1iT\df
if(previousIndex < 0) k#TYKft
return0; %WG9 dYdS
else 31+;]W=
return previousIndex; aMARZ)V
} v;#=e$%}MO
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} ?eV(1Fr@
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抽象业务类 C8N{l:1f]
java代码: F,Xo|jjj
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/** nq}Q
* Created on 2005-7-12 `7aDEzmJ
*/ !;@_VWR
package com.javaeye.common.business; 38V3o`f
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import java.io.Serializable; `;,Pb&W~
import java.util.List; 6< J
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import org.hibernate.Criteria; m^%|ZTrwN7
import org.hibernate.HibernateException; 9_ICNG%
import org.hibernate.Session; M/PFPJ >`
import org.hibernate.criterion.DetachedCriteria; SDG-~(Y
import org.hibernate.criterion.Projections; ?zJpD8e
import hli|B+:m"
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org.springframework.orm.hibernate3.HibernateCallback; "o!{51!'
import /il@`w;G
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org.springframework.orm.hibernate3.support.HibernateDaoS OkAK
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upport; MJ<Jb ,D1
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import com.javaeye.common.util.PaginationSupport; z><5R|Gf
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public abstract class AbstractManager extends (%CZ*L[9Z
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HibernateDaoSupport { P27%xV-n>
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privateboolean cacheQueries = false; wmNHT _
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privateString queryCacheRegion; wo2@hav
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publicvoid setCacheQueries(boolean zHWSE7!
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cacheQueries){ zxb/
this.cacheQueries = cacheQueries; i[C~5}%
} 'PZ|:9FX!
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publicvoid setQueryCacheRegion(String {",MCu_V
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queryCacheRegion){ {s?M*_{|
this.queryCacheRegion = ivO/;)=t
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queryCacheRegion; CD j~;$[B
} )'4P.>!!aQ
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publicvoid save(finalObject entity){ 09KcKhFB
getHibernateTemplate().save(entity); %U7.7dSOI;
} -b&{+= ^c
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publicvoid persist(finalObject entity){ }/dRU${!
getHibernateTemplate().save(entity); &hHW3Q(1
} t22;87&|
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publicvoid update(finalObject entity){ `Ycf]2.,$
getHibernateTemplate().update(entity); R9We/FhOY
} p1pQU={<
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publicvoid delete(finalObject entity){ NE8 jC7
getHibernateTemplate().delete(entity); [,EpN{l
} 6\7ncFO3
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publicObject load(finalClass entity, x} /,yaWZ
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finalSerializable id){ Jo(`zuLJ
return getHibernateTemplate().load 0X8t>#uF
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(entity, id); V~DMtB7
} :nHKl
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publicObject get(finalClass entity, })xp%<`
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finalSerializable id){ ] H~4
return getHibernateTemplate().get b2(RpY2Y
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(entity, id); 0|xIBg)
} p?[Tm*r
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publicList findAll(finalClass entity){ [97:4.
return getHibernateTemplate().find("from +[@z(N-h
;a=w5,h:
" + entity.getName()); ?PA$Ur21lw
} A,CW_
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publicList findByNamedQuery(finalString ,)+o
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namedQuery){ )C(>H93
return getHibernateTemplate NqHy%'R
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().findByNamedQuery(namedQuery); %V&n*3
} T#%/s?_>.
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publicList findByNamedQuery(finalString query, v$~QCtc
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finalObject parameter){ #&<)! YY5
return getHibernateTemplate #
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().findByNamedQuery(query, parameter); rD?L
} 2n><RZ/9
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publicList findByNamedQuery(finalString query, -50HB`t
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finalObject[] parameters){ "q}FPJ^l_N
return getHibernateTemplate i"zuil
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().findByNamedQuery(query, parameters); %:>3n8n
} Sw^X2$h
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publicList find(finalString query){ mS>xGtD&K
return getHibernateTemplate().find -aRU]kIf
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(query); v}@xlB=
} o)6p A^+
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publicList find(finalString query, finalObject nKR{ug>I)
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parameter){ NW~z&8L
return getHibernateTemplate().find c,so`I3rI
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(query, parameter); i|
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} o:Qv
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public PaginationSupport findPageByCriteria pY4}>ju(g
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