Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 6KX/Yj~B
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 |bk$VT4\
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据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 :MF+`RpL
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 W'5c%SI
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分页支持类: Jwbb>mB!
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java代码: >NtJ)N*
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package com.javaeye.common.util; W;.LN<bx
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import java.util.List; *,e`.
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publicclass PaginationSupport { v@qVT'qlU
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publicfinalstaticint PAGESIZE = 30; P A$jR
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privateint pageSize = PAGESIZE; =u.hHkx
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privateList items; W<Asr@
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privateint totalCount; `q7X(x
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privateint[] indexes = newint[0]; 4R9y~~+
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privateint startIndex = 0; 9*? i89T
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public PaginationSupport(List items, int 4l_~-Peh
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totalCount){ /Hyi/D{ W
setPageSize(PAGESIZE); +\25ynM
setTotalCount(totalCount); {0\9HI@
setItems(items); jR^_1bu
setStartIndex(0); 1-8G2e
} *NoixV1>
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public PaginationSupport(List items, int WdT iao,r
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totalCount, int startIndex){ R-1C#R[
setPageSize(PAGESIZE); \T^ptj(0
setTotalCount(totalCount); luCwP
setItems(items); N$P\$
setStartIndex(startIndex); /(DnMHn\
} yjIA`5^
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public PaginationSupport(List items, int !5>PZ{J
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totalCount, int pageSize, int startIndex){ K8fC>iNbH
setPageSize(pageSize); (vwKC
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setTotalCount(totalCount); Eb9n6Fg
setItems(items); nc.:Wm6Mj
setStartIndex(startIndex); G/yYIs
} Z8\/Fb
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publicList getItems(){ 2X 0<-Y#'
return items; vg*~t3{ L
} jXYjs8Iy
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publicvoid setItems(List items){ {EyWSf"
this.items = items; ?I;PJj
} B1b9
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publicint getPageSize(){ C{]1+eL
return pageSize; KDLrt
} 1i@a? 27|
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publicvoid setPageSize(int pageSize){ Wn Ng3'6
this.pageSize = pageSize; q)OCY}QA
} }[SYWJIc
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publicint getTotalCount(){ SL?YU(a
return totalCount; !>)o&sM
} PyM59v
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publicvoid setTotalCount(int totalCount){ Ceew~n{
if(totalCount > 0){ $ <Mf#.8%
this.totalCount = totalCount; jm,c Vo
int count = totalCount /
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pageSize; W 'R^GIHs
if(totalCount % pageSize > 0) T
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count++; (9v%66y
indexes = newint[count];
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for(int i = 0; i < count; i++){ "0J;H#Y"#
indexes = pageSize * <l<6W-I
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} RhkTN'vO
}else{ Zhc99 L&K
this.totalCount = 0; m[s$) -T
} DC2[g9S>8@
} 6bT>x5?
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publicint[] getIndexes(){ ZNJ<@K-
return indexes; - #-Bo
} 6dhzx; A
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publicvoid setIndexes(int[] indexes){ L)"CE].
this.indexes = indexes; j8;Uny9
} X}`39r.
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publicint getStartIndex(){ _=HNcpDA;0
return startIndex; Gyb|{G_
} b fI= =
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publicvoid setStartIndex(int startIndex){ +HlZ?1g
if(totalCount <= 0) )C0d*T0i
this.startIndex = 0; J>1%*Tz
elseif(startIndex >= totalCount) O"J"H2}S
this.startIndex = indexes ^ LVKXr
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[indexes.length - 1]; GIhFOK
elseif(startIndex < 0) 'u6n,yRm
this.startIndex = 0; -Sa-eWP
else{ z-h?Q4;
this.startIndex = indexes h;):TFiC
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[startIndex / pageSize]; |BXp `
} @Y!B~
} ]rji]4s
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publicint getNextIndex(){ D/+l$aBz
int nextIndex = getStartIndex() + y:Aha#<
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pageSize; -#,4rN#
if(nextIndex >= totalCount) 1P
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return getStartIndex(); "G@(Cb*+T
else "iUh.c=0F,
return nextIndex; Ezr q2/~Q
} 0rxGb} b*
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publicint getPreviousIndex(){ #X2wy$GTG
int previousIndex = getStartIndex() - z=Xh
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pageSize; JA4}Bwn
if(previousIndex < 0) k}!'@
return0; xXSfYW
else nX8ulGG s
return previousIndex; eo^C[#
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} p5l|qs
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} H'Jz:6
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抽象业务类 h=^UMat-
java代码: |-z"6F r-
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/** Y$s4 *)%
* Created on 2005-7-12 N_d{E/
*/ 2Sk"S/4}Z
package com.javaeye.common.business; k106fT]eX
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import java.io.Serializable; 5F#FC89Kk
import java.util.List; yT[=!M
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import org.hibernate.Criteria; 1\nzfxx
import org.hibernate.HibernateException; O`T_'.Lk
import org.hibernate.Session; ^fmuBe}d{
import org.hibernate.criterion.DetachedCriteria; c/V0AKkS
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import org.hibernate.criterion.Projections; Rln\
import syCT)}T6z
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org.springframework.orm.hibernate3.HibernateCallback; vOv"^X
import #/HZ[Vw
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org.springframework.orm.hibernate3.support.HibernateDaoS tJmy}.t1
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upport; dA <_`GFR
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import com.javaeye.common.util.PaginationSupport; 00@F?|-j
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public abstract class AbstractManager extends r_kaS
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HibernateDaoSupport { .o]9
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privateboolean cacheQueries = false; A(H2Gt
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privateString queryCacheRegion; u"m TS&
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publicvoid setCacheQueries(boolean f?>
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cacheQueries){ P)LOAe1'
this.cacheQueries = cacheQueries; Ihv@2{*(b
} mP's4
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publicvoid setQueryCacheRegion(String ,
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queryCacheRegion){ HMDuP2Y
this.queryCacheRegion = ^# 4e_&4
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queryCacheRegion; #g'j0N
} zGy+jeH:.
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publicvoid save(finalObject entity){ hBVm;`
getHibernateTemplate().save(entity); pl$wy}W-
} $ wDSED -
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publicvoid persist(finalObject entity){ 9e.$x%7j
getHibernateTemplate().save(entity); ? cn`N|
} o-JB,^TE
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publicvoid update(finalObject entity){ _>;{+XRX[
getHibernateTemplate().update(entity); XVb9)a
} L-9;"]d~|
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publicvoid delete(finalObject entity){ z?F`)}
getHibernateTemplate().delete(entity); ?@kz`BY
} I!SIy&=W
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publicObject load(finalClass entity, ]9c{qm}y
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finalSerializable id){ G~ LQM
return getHibernateTemplate().load @"wX#ot
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(entity, id); %~kE,^
} YY(_g|;?8
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publicObject get(finalClass entity, 53d`+an2
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finalSerializable id){ Br.UN~q
return getHibernateTemplate().get
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(entity, id); RCoDdtMo
} At
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publicList findAll(finalClass entity){ b80&${v
return getHibernateTemplate().find("from U#Iwe=
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" + entity.getName()); )1gT&sU