Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 @#T*OH
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 BReNhk)S
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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 6]i"lqb
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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 gI&& LwT4
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分页支持类: RVFQ!0
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java代码: <a-I-~
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package com.javaeye.common.util; tHSe>*eC
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import java.util.List; ^X6fgsjz
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publicclass PaginationSupport { DWB.dP *8
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publicfinalstaticint PAGESIZE = 30; {:&t;5qz^
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privateint pageSize = PAGESIZE; _y}]j;e8>{
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privateList items; XEF|B--,
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privateint totalCount; 1}e1:m]r
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privateint[] indexes = newint[0]; K/Q^8%Z
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privateint startIndex = 0; \(t.|
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public PaginationSupport(List items, int T}(J`{9i
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totalCount){ FbB>
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setPageSize(PAGESIZE); mie<jha
setTotalCount(totalCount); tBgB>-h(
setItems(items); :CO>g=`
setStartIndex(0); >]q{vKCAP
} hKw4 [wB]
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public PaginationSupport(List items, int 4P@Ak7iL(V
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totalCount, int startIndex){ 2R&msdF
setPageSize(PAGESIZE); .__X-+^
setTotalCount(totalCount); 5qkG~YO-
setItems(items); ?[Od.
setStartIndex(startIndex); $m`?x5rL8
} O/^7TBTn<r
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public PaginationSupport(List items, int z'K&LH
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totalCount, int pageSize, int startIndex){ 0
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setPageSize(pageSize); +E7s[9/r
setTotalCount(totalCount); [*U6L<JI
setItems(items); B1>aR 7dsf
setStartIndex(startIndex); [z$th
} !(PAUWS@
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publicList getItems(){ <A +VS
return items; [mKPOg-t
} fOEw]B#@
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publicvoid setItems(List items){ e&zZr]vs]l
this.items = items; )(`I1"1
} d^sS{m\
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publicint getPageSize(){ (K"U# Zn
return pageSize; ,)3%@MwO
} I!?-lI@(
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publicvoid setPageSize(int pageSize){ ca/AScL
this.pageSize = pageSize; LIYj__4=|
} _oK*1#Rm8
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publicint getTotalCount(){ VWqmqR%
return totalCount; $eUI.j(HU
} sJ[I<
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publicvoid setTotalCount(int totalCount){ Vvk1 D(
if(totalCount > 0){ 'E FP/(2J
this.totalCount = totalCount; \^O&){q(9
int count = totalCount / +~b@W{
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pageSize; Vx$ ?)&
if(totalCount % pageSize > 0) <7-:flQz~
count++; H&`0I$8m
indexes = newint[count]; fz'@ON
for(int i = 0; i < count; i++){ %O]]La
indexes = pageSize * 53efF bo
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} ]E/^(T-O
}else{ Dy`;]-b6u
this.totalCount = 0; /
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} C;]}Ht:~I
} lezX-5Z
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publicint[] getIndexes(){ r'!L}^n
return indexes; h=tzG KI
} Z4 y9d?g%b
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publicvoid setIndexes(int[] indexes){ '/l<\b/E
this.indexes = indexes; zf+jQ
} 4#?Sxs
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publicint getStartIndex(){ \\w<.\Yh
return startIndex; X@;;
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} oPP`)b$x
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publicvoid setStartIndex(int startIndex){ 66ULR&D8
if(totalCount <= 0) PM]|S`
this.startIndex = 0; WbF[4x
elseif(startIndex >= totalCount) 6! `^}4
this.startIndex = indexes #Bu W
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[indexes.length - 1]; FfEP@$
elseif(startIndex < 0) CshYUr -
this.startIndex = 0; [_kis
else{ NVyel*QE
this.startIndex = indexes ux>wa+XFa
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[startIndex / pageSize]; `^_c&y K
} 2z*EamF
} #6okd*^
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publicint getNextIndex(){ >#pZ`oPEAv
int nextIndex = getStartIndex() + FYe#x]ue
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pageSize; R*PR21g
if(nextIndex >= totalCount)
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return getStartIndex(); oUSv)G.zb
else l-/fFy)T
return nextIndex; R3 Zg,YM
} 3Lg)237&j
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publicint getPreviousIndex(){ ^HiI
int previousIndex = getStartIndex() - y}aKL(AaU
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pageSize; a ][t#`
if(previousIndex < 0) \tCxz(vKz
return0; /[V}
else nC6 ;:uM
return previousIndex; wlC7;u
} 8&q[jxI@8
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} fX:=_c
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抽象业务类 )#%v1rR
java代码: yxx9h3
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/** ~7;AV(\%e
* Created on 2005-7-12 [N=v=J9
*/ Xzn}gH]
package com.javaeye.common.business; 8u|F %Sg
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import java.io.Serializable; ] Hiw+5n
import java.util.List; PS:"mP7n
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import org.hibernate.Criteria; Q0j4c
import org.hibernate.HibernateException; Crg@05Z
import org.hibernate.Session; vRI0fDu
import org.hibernate.criterion.DetachedCriteria; 1#Q~aY
import org.hibernate.criterion.Projections;
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import %M7EOa
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org.springframework.orm.hibernate3.HibernateCallback; ORDVyb_x
import #_pQS}$
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org.springframework.orm.hibernate3.support.HibernateDaoS k]"DsN$
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upport; +"?O2PX
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import com.javaeye.common.util.PaginationSupport; _Dq,\}
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public abstract class AbstractManager extends gcI?)F
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HibernateDaoSupport { jt?DogYx
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privateboolean cacheQueries = false; O[<YYL0
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privateString queryCacheRegion; [sc4ULS &
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publicvoid setCacheQueries(boolean *]K/8MbiF
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cacheQueries){ Dkyw3*LCn%
this.cacheQueries = cacheQueries; ;N?raz2mEi
} 8?4/
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publicvoid setQueryCacheRegion(String NK!#K>AO
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queryCacheRegion){ H"b}lf
this.queryCacheRegion = s`dwE*~
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queryCacheRegion; YZ(tjIgQ
} aH'=k?Of;
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publicvoid save(finalObject entity){ HceZT e@
getHibernateTemplate().save(entity); V jqs\
} |T+YC[T#v
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publicvoid persist(finalObject entity){ fN_Ilg)t?5
getHibernateTemplate().save(entity); ozUsp[W>
} \N a
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publicvoid update(finalObject entity){ _xu_W;nh
getHibernateTemplate().update(entity); FCIA8^}s
} +Ua.\1"6
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publicvoid delete(finalObject entity){ 6}JW- sA
getHibernateTemplate().delete(entity); LB\+*P6QM
} ;=lQMKx0
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publicObject load(finalClass entity, I4Rd2G_
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finalSerializable id){ t2_pwd*B
return getHibernateTemplate().load B!AJ*
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(entity, id); bFB.hkTP
} ,7os3~Mk9
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publicObject get(finalClass entity, zW:r7
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finalSerializable id){ %(ms74R+
return getHibernateTemplate().get KYM%U"j D
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(entity, id); Lgrpy
} a_(fqoW
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publicList findAll(finalClass entity){ @$R^-_m
return getHibernateTemplate().find("from Z_(P^/
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" + entity.getName()); hwi$:[
} hOR1RB
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