Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ^*UtF9~%n
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 7BqP3T=&_
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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 c;(Fz^&_
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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 0*kS\R=P
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分页支持类: 9m_~Zs}Z
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java代码: #u+qV!4
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package com.javaeye.common.util; hMvJNI6O
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import java.util.List; `HYj:4v'
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publicclass PaginationSupport { |=~mRqG
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publicfinalstaticint PAGESIZE = 30; u0)9IZxc
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privateint pageSize = PAGESIZE; 3fX_XH1Q
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privateList items; XhWo~zh"
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privateint totalCount; 0"TPY(n
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privateint[] indexes = newint[0]; Fo%`X[ ?
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privateint startIndex = 0; *<[\|L:#]Z
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public PaginationSupport(List items, int -k2|`t _
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totalCount){ 9H:J&'Xi7
setPageSize(PAGESIZE); :f_oN3F p
setTotalCount(totalCount); luac
setItems(items); f
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setStartIndex(0); >o&%via}
} 1P'L<z
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public PaginationSupport(List items, int g`.H)36
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totalCount, int startIndex){ E[zq<&P@
setPageSize(PAGESIZE); >dw
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setTotalCount(totalCount); JX&%5sn(
setItems(items); Buq(L6P9r
setStartIndex(startIndex); :=!6w
} u WdKG({][
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public PaginationSupport(List items, int -?{g{6
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totalCount, int pageSize, int startIndex){ <m{#u4FC'
setPageSize(pageSize); P%vouC0W
setTotalCount(totalCount); @7Ln1v
setItems(items); )S`Yl;oL
setStartIndex(startIndex); I1dOMu9
} 6L
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publicList getItems(){ rTJqw@]#WH
return items; At[SkG}b
} i*&b@.7N
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publicvoid setItems(List items){ Qn-nO_JL
this.items = items; ~-%z:Re'_
} I)r6*|mz
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publicint getPageSize(){ o~4kJW#
return pageSize; q%]5/.J
} [x`),3qD
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publicvoid setPageSize(int pageSize){ 9j-;-`$S
this.pageSize = pageSize; =dQF}-{!
} JL u$UR4
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publicint getTotalCount(){ od,,2pwK+
return totalCount; GGZ9DC\{
} #BH]`A J
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publicvoid setTotalCount(int totalCount){ {S@,
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if(totalCount > 0){ Gtvbm
this.totalCount = totalCount; @cx#'
int count = totalCount / ).Iifu|ks
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pageSize; c2s73iz
if(totalCount % pageSize > 0) *lheF>^
count++; !
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indexes = newint[count]; C9FAX$$^(Y
for(int i = 0; i < count; i++){ jsKKg^g
indexes = pageSize * Y10
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} a|]}uFr
}else{ {8%KO1xB
this.totalCount = 0; P/k#([:2
} 9c0
} ^0(D2:E
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publicint[] getIndexes(){ )hVn/*mH
return indexes; +lf`Dd3
} X@A8~kj1
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publicvoid setIndexes(int[] indexes){ uFvR(LDb&g
this.indexes = indexes; T=g2gmo9
} T/hz23nH
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publicint getStartIndex(){ usi3z9P>n
return startIndex; }%y5<n*v\
} >Wd_?NaI
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publicvoid setStartIndex(int startIndex){ ZF<$6"4N
if(totalCount <= 0) CRNt5T>qH
this.startIndex = 0; f]Rh<N$
elseif(startIndex >= totalCount) rfh`;G5s
this.startIndex = indexes <:StZ{o;
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[indexes.length - 1]; .[?2_e#9 %
elseif(startIndex < 0)
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this.startIndex = 0; g6?5
else{ @)ls+}=Y
this.startIndex = indexes 'PTQ
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[startIndex / pageSize]; Jgq#m~M6
} 0R-W9qP
} S++jwP
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publicint getNextIndex(){ "|E'E"_1
int nextIndex = getStartIndex() + CX]L'
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pageSize; xo!2GPD.
if(nextIndex >= totalCount) be(hY{y`
return getStartIndex(); !R[~Z7b6
else ]r\!Z
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return nextIndex; VMu?mqEa
} *}>)E]O@
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publicint getPreviousIndex(){ M>{*PHze0
int previousIndex = getStartIndex() - {m_y<
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pageSize; +iNp8
if(previousIndex < 0) e?KzT5j:
return0; $qR@;=
else ZsP>CELm@
return previousIndex; *y|zF6
} _9<Mo;C
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} ]\/"-Y#4Q
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抽象业务类 &_\;p-1:
java代码: x-b}S1@
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/** 'oUTY *
* Created on 2005-7-12 AN)r(86L
*/ fk\]wFj
package com.javaeye.common.business; NIp]n[=.q
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import java.io.Serializable; <s$Jj><
import java.util.List; zd {sw}
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import org.hibernate.Criteria; J.]`l\
import org.hibernate.HibernateException; ``>z8t[ks
import org.hibernate.Session; h+j*vX/!
import org.hibernate.criterion.DetachedCriteria; #L&/o9|
import org.hibernate.criterion.Projections; xxld. j6
import qI<c47d;q
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org.springframework.orm.hibernate3.HibernateCallback; 59~mr:*sF
import HmHM#~5(`
VLoRS)
org.springframework.orm.hibernate3.support.HibernateDaoS ?6h~P:n.
#+$PD`j
upport;
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import com.javaeye.common.util.PaginationSupport; =,X*40=
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public abstract class AbstractManager extends r~2q`l'>
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HibernateDaoSupport { Vt:\llsin
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privateboolean cacheQueries = false; +Eel|)Z*Q
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privateString queryCacheRegion; q_[`PYT
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publicvoid setCacheQueries(boolean *e:2iM)8~
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cacheQueries){ A+FQmLS
this.cacheQueries = cacheQueries; (0rcLNk{|
} O9N+<sU=X
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publicvoid setQueryCacheRegion(String ]Rxrt~ ZB
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queryCacheRegion){ 'ITZz n*
this.queryCacheRegion = 5xU}}[|~-
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queryCacheRegion; {\|XuCF#
} $4og{
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publicvoid save(finalObject entity){ L=P8; Gj)
getHibernateTemplate().save(entity); nP|ah~
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} !)05,6WQ
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publicvoid persist(finalObject entity){ p4kK"
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getHibernateTemplate().save(entity); w{]B)>! 1W
} l_,6<wWp
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publicvoid update(finalObject entity){ @gQ?cU 7
getHibernateTemplate().update(entity); K1-RJj\L
} .k#O[^~]
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publicvoid delete(finalObject entity){ _ozg=n2(
getHibernateTemplate().delete(entity); Oi{J}2U
} 7nM<P4\
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publicObject load(finalClass entity, TGjxy1A
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finalSerializable id){ L$ jii
return getHibernateTemplate().load r\y\]AmF
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(entity, id); V=+p8nE0
} P8tCzjrV
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publicObject get(finalClass entity, ':utU1dL
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finalSerializable id){ ?pA_/wwp
return getHibernateTemplate().get "k),;1
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(entity, id); t=[/L]!
} Q1H.2JXr
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publicList findAll(finalClass entity){ ;]rj Kc=
return getHibernateTemplate().find("from ]0{,P
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" + entity.getName()); U1kW1L}B
} p%OVl[^jp
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publicList findByNamedQuery(finalString N0ZD+
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namedQuery){ 9,}Z1 f\%
return getHibernateTemplate paxZlA
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().findByNamedQuery(namedQuery); va.Ve# N
} gX*
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publicList findByNamedQuery(finalString query, #4Cf-$J
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finalObject parameter){ HaOSFltf#
return getHibernateTemplate .;D'
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().findByNamedQuery(query, parameter); EV~?]Kt~
} 86o'3G9@
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publicList findByNamedQuery(finalString query, vLCm,Bb2L
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finalObject[] parameters){ >SD?MW1E
return getHibernateTemplate 'RR,b*Ql
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().findByNamedQuery(query, parameters); }5?|iUH|
} {_4zm&
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publicList find(finalString query){ Btc[
return getHibernateTemplate().find /(i~Hpp
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