Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ,Adus M
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 4C l,Iw/;
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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 JVD@I{
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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 pi^^L@@d
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分页支持类: r{pI-$
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java代码: *Gg1h@&
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package com.javaeye.common.util; _ff=B
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import java.util.List; ]NaMZ
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publicclass PaginationSupport { c'4>D,?1
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publicfinalstaticint PAGESIZE = 30; &/B2)l6a
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privateint pageSize = PAGESIZE; 3S[w'
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privateList items; 8vz_~p9%j
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privateint totalCount; SRA|7g}7W
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privateint[] indexes = newint[0]; :N^@a-
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privateint startIndex = 0; Ybs=W<-
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public PaginationSupport(List items, int cJU!zG
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totalCount){ 5uQv
setPageSize(PAGESIZE); v\vE^|-\/
setTotalCount(totalCount); qT4I Y$h
setItems(items); Z:\;R{D
setStartIndex(0); ?;0nJf
} Bxn8><
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public PaginationSupport(List items, int F|]o9&/<]
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totalCount, int startIndex){ O ,Pl7x%tK
setPageSize(PAGESIZE); p?dGZ2` [I
setTotalCount(totalCount); naec"Kut
setItems(items); <.PPs:{8#
setStartIndex(startIndex); 7&;[an^w
} <Dt/Rad
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public PaginationSupport(List items, int ]C}u-B746
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totalCount, int pageSize, int startIndex){ 2x<Qt2"
setPageSize(pageSize); BiHiVhD_
setTotalCount(totalCount); Rxvd+8FF
setItems(items); Ft%TnEp
setStartIndex(startIndex); T+AlcOP
} xJ[k#?T'
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publicList getItems(){ 'k-u9
return items; {V]Qwz)1
} ^7ea6G"
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publicvoid setItems(List items){ 7]M,yIwc
this.items = items; G1#Bb5q:
} ]YisZE4s
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publicint getPageSize(){ egxJ3.
return pageSize; )Dk0V!%N
} 1jUhG2y
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publicvoid setPageSize(int pageSize){ (n":]8}
this.pageSize = pageSize; 3PvZ_!G
} P`Hd*xh".j
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publicint getTotalCount(){ t6<sNzF&
return totalCount; /XWPN(JC?
} [#hl}q(P#
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publicvoid setTotalCount(int totalCount){ rj2r# {[
if(totalCount > 0){ Vq .!(x
this.totalCount = totalCount; Kc JP^
int count = totalCount / 9I`Mm}v@
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pageSize; 'K;4102\
if(totalCount % pageSize > 0) |l6<GWG+
count++; O]Ry3j
indexes = newint[count]; 5I8FD".i
for(int i = 0; i < count; i++){ [x$eF~Kp
indexes = pageSize * (l3UNP
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} I |<+'G
}else{ /c_kj2& ]9
this.totalCount = 0; XvA0nEi
} &{%S0\K Y
} `L"p)5H
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publicint[] getIndexes(){ :]u}xDv3
return indexes; Ry8WNVO}R
} d}wa[WRv
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publicvoid setIndexes(int[] indexes){ 6uCk0
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this.indexes = indexes; BqLtTo ?'
} "x:)$@
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publicint getStartIndex(){ wQdW
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return startIndex; !ulLGmUn
} Zeme`/aBb
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publicvoid setStartIndex(int startIndex){ I7q?V1fu4
if(totalCount <= 0) k[r./xEv+t
this.startIndex = 0; !dbA (
elseif(startIndex >= totalCount) ^EuyvftZ
this.startIndex = indexes os(Jr!p_=
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[indexes.length - 1]; HjUw[Yz+6
elseif(startIndex < 0) I*vj26qvg
this.startIndex = 0; (}~eD
else{ wCq)w=,
this.startIndex = indexes w371.84
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[startIndex / pageSize]; 4ye`;hXy
} ?(,5eg
} vYMbson}
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publicint getNextIndex(){ zNsL^;uT
int nextIndex = getStartIndex() + -X&!dV:= 4
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pageSize; SRG!G]?-
if(nextIndex >= totalCount) ?2<6#>(7a
return getStartIndex(); Ltic_cjYd?
else $Va]vC8?
return nextIndex; }lNufu
} 1)/T.q<D"
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publicint getPreviousIndex(){ eX
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int previousIndex = getStartIndex() - 2ucF(^
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pageSize; d'AviW>
if(previousIndex < 0) E9Xk8w'+
return0; /_k hFw
else ,],JI|Rl8c
return previousIndex; UwL"%0u
} jzJ1+/9
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} y9G 57D
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抽象业务类 owpJ7S1~
java代码: i3kI2\bd/
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/** h4B#T'b
* Created on 2005-7-12 TNFm7}=
*/ L$u&~"z-
package com.javaeye.common.business; qT<qu(V:
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import java.io.Serializable; zIYr0k*%
import java.util.List; VU+ s7L0
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import org.hibernate.Criteria; FvI0 J
import org.hibernate.HibernateException; S4:\`Lo-;
import org.hibernate.Session; {u_k\m[Y
import org.hibernate.criterion.DetachedCriteria; 4|Gs(^nU
import org.hibernate.criterion.Projections; %*Z2Gef?H
import }PIGj} F/
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org.springframework.orm.hibernate3.HibernateCallback; 9CU6o:'fW
import ux79"5qb
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org.springframework.orm.hibernate3.support.HibernateDaoS lRATrp#T
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upport; Hj4w
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import com.javaeye.common.util.PaginationSupport; hq8/`u
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public abstract class AbstractManager extends _~S^#ut+
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HibernateDaoSupport { "MS`d+rf\
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privateboolean cacheQueries = false; *~<]|H5~
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privateString queryCacheRegion; FiU;>t<)
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publicvoid setCacheQueries(boolean iJKm27 ">
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cacheQueries){ ~lalc ^
this.cacheQueries = cacheQueries; <,cIc]eX
} \,bFm,kC?
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publicvoid setQueryCacheRegion(String >A(?P n{|a
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queryCacheRegion){ i!}nGJGg
this.queryCacheRegion = }Ka.bZS
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queryCacheRegion; o`1V
} CT:eV7<>s
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publicvoid save(finalObject entity){ H"RF[bX(
getHibernateTemplate().save(entity); l0_E9qh-i
} [U7,\o4w
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publicvoid persist(finalObject entity){ k-DB~-L
getHibernateTemplate().save(entity); `# M.t);^
} U*fj5
}!7DF
publicvoid update(finalObject entity){ k$x
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getHibernateTemplate().update(entity); 8 8=c3^
} 4C9"Q,o%&
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publicvoid delete(finalObject entity){ a~eLkWnh<k
getHibernateTemplate().delete(entity); KRR^?
} <