Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 35Ai;mU'
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 zwM"`z
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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 ^>N8*=y
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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 jo9J%vo
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分页支持类: Gw
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java代码: dtB[m^$
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package com.javaeye.common.util; b#D9eJhS
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import java.util.List; 3R5K}ZBi%
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publicclass PaginationSupport { F(Lb8\to\M
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publicfinalstaticint PAGESIZE = 30; K :1g"
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privateint pageSize = PAGESIZE; F>(qOH.I
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privateList items; YV5Yx-+3w$
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privateint totalCount; $ q%mu
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privateint[] indexes = newint[0]; uQH%.A
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privateint startIndex = 0; OENzG~
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public PaginationSupport(List items, int L +L9Y}
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totalCount){ T"n{WmVQ
setPageSize(PAGESIZE); -glugVq
setTotalCount(totalCount); JZ `>|<W
setItems(items); 8O,?|c=>
setStartIndex(0); "hL9f=w
} {DU"]c/S
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public PaginationSupport(List items, int ?nQ_w0j
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totalCount, int startIndex){ *i@sUM?K
setPageSize(PAGESIZE); ,Z^Ca15z
setTotalCount(totalCount); 2zz,(RA
setItems(items); ? m&IF<b
setStartIndex(startIndex); :.Y|I[\E%
} dVa!.q_3
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public PaginationSupport(List items, int r]v&t
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totalCount, int pageSize, int startIndex){ yH*hL0mO
setPageSize(pageSize); ODm&&W#*
setTotalCount(totalCount); G 0hYFc u
setItems(items); @&;(D!_&
setStartIndex(startIndex); Z+ixRch@-s
} vkJ)FEar
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publicList getItems(){ 5?Bc
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return items; 2z4<N2!M
} fV 3r|Bp
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publicvoid setItems(List items){ )CJES!!
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this.items = items; M&r2:Whk
} LIF|bE9kd
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publicint getPageSize(){ Z .quh;
return pageSize; K4C^m|e
} |pJC:woq
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publicvoid setPageSize(int pageSize){ o7.e'1@
this.pageSize = pageSize; sI'a1$
} D}-o+6TI?
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publicint getTotalCount(){ ]Kv q |}=
return totalCount; q(78fZ *X
} 3QW_k5o
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publicvoid setTotalCount(int totalCount){ |XRImeF'd
if(totalCount > 0){ v,{h:
this.totalCount = totalCount; KF_ ?'X0=
int count = totalCount / f-4.WW2FN
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pageSize; F+m[&MKL
if(totalCount % pageSize > 0) -IadHX}]t
count++; n@hl2M6.x9
indexes = newint[count]; >L gVj$Z
for(int i = 0; i < count; i++){ OOok hZd`
indexes = pageSize * /Y,r@D
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} yG\UW&P
}else{ ,9d9_c.T
this.totalCount = 0; /%!~x[BeJ>
} e'34Pw!m
} \@K~L4>
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publicint[] getIndexes(){ tmO`|tn&
return indexes; +TH3&H5I_A
} 6g"C#&{@
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publicvoid setIndexes(int[] indexes){ {pWBwf>R C
this.indexes = indexes; 6W&_2a7*
} ?1peF47Z
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publicint getStartIndex(){ JEhm1T
return startIndex; Q8q@Y R#
} Zsj`F9*e
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publicvoid setStartIndex(int startIndex){ /_)l|<k+V
if(totalCount <= 0) IxOc':/jY
this.startIndex = 0; )1lu=gc
elseif(startIndex >= totalCount) ]!Oue_-;
this.startIndex = indexes Lu=O+{*8
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[indexes.length - 1]; ?iv=53<c#
elseif(startIndex < 0) 3-C\2
this.startIndex = 0; E=AVrv5T
else{ jZd}OC<
this.startIndex = indexes E)W@{?.o#
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[startIndex / pageSize]; <^8*<;PaG
} 4r&f%caU
} oh~:,
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publicint getNextIndex(){ w2dcH4&
int nextIndex = getStartIndex() + C5*xQlCq}
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pageSize; ut_pHj@
if(nextIndex >= totalCount) FOH@OY
return getStartIndex(); 6ZOy&fd,Ty
else 1$pb (OK
return nextIndex; XN;&qR^j
} BMFF=
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publicint getPreviousIndex(){ G-u]L7t&1
int previousIndex = getStartIndex() - QM'X@
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pageSize; \+m$
if(previousIndex < 0) *jITOR!uF`
return0; uwmQ?LS]V
else TTZe$>f
return previousIndex; ~aTKG|74
} <jA105U"m>
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} nlc.u}#
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抽象业务类 pHC/(6?
java代码: Y@uh[aS!
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/** e,0-)?5R
* Created on 2005-7-12 3n]79+w@z
*/ [XR$F@o
package com.javaeye.common.business; Bp?
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import java.io.Serializable; 56}X/u
import java.util.List; h8{(KRa 6
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import org.hibernate.Criteria; =&nW~<- v
import org.hibernate.HibernateException; ,Nm$i"Lg
import org.hibernate.Session; ZDt?j
import org.hibernate.criterion.DetachedCriteria; k N7Bd}
import org.hibernate.criterion.Projections; Bc5+ss
import 5B4Ssrs5W~
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org.springframework.orm.hibernate3.HibernateCallback; R2<s0l
import w@-M{?R
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org.springframework.orm.hibernate3.support.HibernateDaoS G`0V)S
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upport; g>JLDQdc
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import com.javaeye.common.util.PaginationSupport; j5$GFi\kB
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public abstract class AbstractManager extends (s<s@`
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HibernateDaoSupport { i^msjA
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privateboolean cacheQueries = false; ?)D^~/
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privateString queryCacheRegion; S\i@s_
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publicvoid setCacheQueries(boolean LeOP;#
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cacheQueries){ Kn`M4O
this.cacheQueries = cacheQueries; >l']H*&B<
} 80OtO#1y
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publicvoid setQueryCacheRegion(String 64>krmVIe
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queryCacheRegion){ @(g_<@Jz
this.queryCacheRegion = b aV>N[F&
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queryCacheRegion; QS[L~97m2M
} $'rG-g!f\
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publicvoid save(finalObject entity){ 4GdX/6C.
getHibernateTemplate().save(entity); 58Xzup_"
} e'%v1-&sP
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publicvoid persist(finalObject entity){ rwLAW"0Qz
getHibernateTemplate().save(entity); B;>{0
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} K<`osdp=&
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publicvoid update(finalObject entity){ Q4*?1`IsR
getHibernateTemplate().update(entity); dP?Ge}
} fxaJZz$o
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publicvoid delete(finalObject entity){ FY{e2~gi
getHibernateTemplate().delete(entity); CC=d I
} soA|wk\A
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publicObject load(finalClass entity, O/s$SX%g
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finalSerializable id){ %
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return getHibernateTemplate().load D"(L5jR8m@
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(entity, id); S{pXs&4O
} ~c^>54
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publicObject get(finalClass entity, &s Pq<l o
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finalSerializable id){ lGwl1,=
return getHibernateTemplate().get RqEH|EUZ
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(entity, id); ^bg2[FV
} LEMfG~Czq
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publicList findAll(finalClass entity){ Unj.f>U
return getHibernateTemplate().find("from voP7"Dl[
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" + entity.getName()); |8>3`w!
} [[PEa-992
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publicList findByNamedQuery(finalString !tfb*@{;'
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namedQuery){ S#)Eom?V
return getHibernateTemplate /Jf.y*;
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().findByNamedQuery(namedQuery); dm0QcW4
} D]w!2k%V
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publicList findByNamedQuery(finalString query, S}APQ
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finalObject parameter){ Tc8un.
return getHibernateTemplate N\:.
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().findByNamedQuery(query, parameter); &j(+ /;A
} Ee4&g<X.
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publicList findByNamedQuery(finalString query, W;bu2ym&Q
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finalObject[] parameters){ j83p)ido
return getHibernateTemplate I}Nd$P)>
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().findByNamedQuery(query, parameters); hX`}Q4(k
} C<KrMRWh^
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publicList find(finalString query){ %K(<$!
return getHibernateTemplate().find pw7[y^[Qg
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(query); 'F>'(XWWQ
} zSo)k~&[3
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publicList find(finalString query, finalObject T,|
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parameter){ r.4LU
return getHibernateTemplate().find !r#?C9Sq
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(query, parameter); $O9^SB
} Neg,qOt
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public PaginationSupport findPageByCriteria T&Lb<'f
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(final DetachedCriteria detachedCriteria){ 8_T6_jL<
return findPageByCriteria !\&