Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ?OF$J|h
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 BM:p)%Pv#P
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据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 h ChO
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 5]]QW3
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分页支持类: #aC&!Rei{
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java代码: 9NVtvBA
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package com.javaeye.common.util; u c!6?+0h
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import java.util.List;
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publicclass PaginationSupport { XS@iu,uO
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publicfinalstaticint PAGESIZE = 30; bt=D<YZk
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privateint pageSize = PAGESIZE; {)r[?%FMgV
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privateList items; ~!TrC<ft
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privateint totalCount; aMydeTCHi
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privateint[] indexes = newint[0]; ?UflK
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privateint startIndex = 0; 7]L}~
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public PaginationSupport(List items, int P!9-!+F"
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totalCount){ <]S
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setPageSize(PAGESIZE); [C
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setTotalCount(totalCount); _%rkN0-(a
setItems(items); r7U[QTM%
setStartIndex(0); js)E:+{A,
} +BI%.A`2
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public PaginationSupport(List items, int vy5{Vm".4
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totalCount, int startIndex){ {2g?+8L$Z
setPageSize(PAGESIZE); &{M-<M
setTotalCount(totalCount); wjID*s[
setItems(items); UG}"OBg/
setStartIndex(startIndex); K)`l >o1
} $Ovq}Rexc
9Kz}
public PaginationSupport(List items, int Jn0L_@
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totalCount, int pageSize, int startIndex){ 5iItgVTW
setPageSize(pageSize); /4*>.Nmb,f
setTotalCount(totalCount); XHuHbriI
setItems(items); +>mU4Fwp
setStartIndex(startIndex); It'PWqZtG
} Vc|QW
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publicList getItems(){ x2]chN
return items; d{'u97GDc
} P'5Q}7
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publicvoid setItems(List items){ Wzh#dO?7
this.items = items; y7 W7270)
}
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publicint getPageSize(){ (TGG?V
return pageSize; x5W@zqj
} R^4
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publicvoid setPageSize(int pageSize){ _vE[TFy
this.pageSize = pageSize; Q
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} u@[JX1&3"n
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publicint getTotalCount(){ >R6>*|~S
return totalCount; ];}7
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} X9uYqvP\(
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publicvoid setTotalCount(int totalCount){ ZEU/6.
if(totalCount > 0){ #>\8m+h 9
this.totalCount = totalCount; Q|HOy8O}Z
int count = totalCount / o>4GtvA*
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pageSize; h)C`w'L
if(totalCount % pageSize > 0) C-:lM1
count++; "{@Q..hxC
indexes = newint[count]; ^DQp9$la
for(int i = 0; i < count; i++){ +{5y,0R
indexes = pageSize * ;WqWD-C
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} 3%0ShMFP@
}else{ Bokpvd-c7
this.totalCount = 0; c2o.H!>
} |l#<vw
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} 4[P]+Z5b+
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publicint[] getIndexes(){ Pqtk1=U
return indexes; 4]P5k6nV
} MKPw;@-
<5t2 +D]]}
publicvoid setIndexes(int[] indexes){ v|K'M,E
this.indexes = indexes; tF&g3)D:NV
} %vZTD+i
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publicint getStartIndex(){ -KA Y
return startIndex; Zai:?%^
} O`rKxP
j YVR"D;
publicvoid setStartIndex(int startIndex){ N0POyd/rL
if(totalCount <= 0) 0hB9D{`,{
this.startIndex = 0; z=[?&X]O9b
elseif(startIndex >= totalCount) 5?=haGn
this.startIndex = indexes t"Tv(W?_
B_3:.1>"BM
[indexes.length - 1]; .gP}/dj
elseif(startIndex < 0) 5%#V>|@e#
this.startIndex = 0; ^lP;JT?
else{ >oHgs
this.startIndex = indexes wnr<# =,I'
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[startIndex / pageSize]; B(t`$mC
} [zsUboCkc
} 7mT
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publicint getNextIndex(){ QMQ\y8E
int nextIndex = getStartIndex() + sn.0`Stt
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pageSize; hVe39BBtO
if(nextIndex >= totalCount) vP @\"
return getStartIndex(); (`cXS5R
else UfxYD
return nextIndex; ODFCA.
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} NfsF'v
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publicint getPreviousIndex(){ 7
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int previousIndex = getStartIndex() - Pu0 <Clh
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pageSize;
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if(previousIndex < 0) bD:[r))#e
return0; <nk7vo?Ks
else KSgYf;
return previousIndex; !eP)"YWI3
} Cw$7d:u
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} 4Je[!X@C
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抽象业务类 ~m6b6Aj@6
java代码: X4dxH_@
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/** ]y\Wc0q
* Created on 2005-7-12 ,p)Qu%'
*/ TMw6
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package com.javaeye.common.business; xtFGj,N
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import java.io.Serializable; i TLX=.M
import java.util.List; t b>At*tO
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import org.hibernate.Criteria; sL4j@Lt
import org.hibernate.HibernateException; N!%[.3o\K
import org.hibernate.Session; M{4U%lk
import org.hibernate.criterion.DetachedCriteria; ]Ei*I}
import org.hibernate.criterion.Projections; Id^)WEK4
import %Xe 74C"
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org.springframework.orm.hibernate3.HibernateCallback; $nqVE{ksV
import MG:eI?G/'
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org.springframework.orm.hibernate3.support.HibernateDaoS w`_"R6
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upport; &a!MT^anA~
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import com.javaeye.common.util.PaginationSupport; UW'@3#<?
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public abstract class AbstractManager extends XsGc!o
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HibernateDaoSupport { c&'5r OY~
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privateboolean cacheQueries = false; !g4u<7
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privateString queryCacheRegion; SNc $!
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publicvoid setCacheQueries(boolean 2" u,f
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cacheQueries){ o[%\W
this.cacheQueries = cacheQueries; O,Ej m<nt
} 9`td_qh
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publicvoid setQueryCacheRegion(String (W
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queryCacheRegion){ 6z2%/P-'
this.queryCacheRegion = v}TFM
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queryCacheRegion; Gq-~zmg
} ,</Kn~b
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publicvoid save(finalObject entity){ U+,RP$r@
getHibernateTemplate().save(entity); hA1p#
} {uurLEe?
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publicvoid persist(finalObject entity){ 8cGoo u6
getHibernateTemplate().save(entity); _R}yZ=di
} 4"veq rC
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publicvoid update(finalObject entity){ n(W&GSj|u9
getHibernateTemplate().update(entity); kS4YxtvB
} A<+1:@0
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publicvoid delete(finalObject entity){ B+z>$6
getHibernateTemplate().delete(entity); L_q3m-x0h
} &WZ&Tt/)/
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publicObject load(finalClass entity, <m~{60{
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finalSerializable id){ :LCyxLI
return getHibernateTemplate().load g(i8HU*{q
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(entity, id); C;~LY&=
} 3vdFO: j
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publicObject get(finalClass entity, LtUvFe
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finalSerializable id){ U4qk<!
return getHibernateTemplate().get fZcA{$Vc]N
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(entity, id); _bt9{@)
} l,Fn_zO
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publicList findAll(finalClass entity){ +S WtHj7e
return getHibernateTemplate().find("from xQl}~G]!
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" + entity.getName()); eAStpG"*
} 7$x%A&]
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publicList findByNamedQuery(finalString hM[3l1o{|
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namedQuery){ nw_s:
return getHibernateTemplate
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().findByNamedQuery(namedQuery); C_JO:$\rE
} efE=5%O
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publicList findByNamedQuery(finalString query, 5{#s<%b.
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finalObject parameter){ 3V7WIj<
return getHibernateTemplate y0-UO+;
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().findByNamedQuery(query, parameter); __zHe-.m
} wS+!>Q_]w
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publicList findByNamedQuery(finalString query, gf?N(,
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finalObject[] parameters){ qHtIjtt[q
return getHibernateTemplate }"SqB{5e(
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().findByNamedQuery(query, parameters); k"C'8<T)'
} ALcPbr
>#'?}@FWQN
publicList find(finalString query){ OhMJt&s9P=
return getHibernateTemplate().find s~bi#U;dF
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(query); cD=IFOB*GD
} dsj}GgG?Z
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publicList find(finalString query, finalObject t72rCq QC
t`{T:Tjc
parameter){ bo(w$&
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return getHibernateTemplate().find #
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(query, parameter); VIN0kRQ#
} 17,mqXX>
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