Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 GL'l "L
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 A^vvw~!d
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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 Mq52B_
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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[t0hbVw
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分页支持类: #D-Ttla
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java代码: Dy|)u1?
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package com.javaeye.common.util; 7&
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import java.util.List; r mJ`^6V
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publicclass PaginationSupport { Wgb L9'}B
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publicfinalstaticint PAGESIZE = 30; xTf|u
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privateint pageSize = PAGESIZE; Cq[<CPAS
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privateList items; #AF.1;(k
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privateint totalCount; yR1v3D4E
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privateint[] indexes = newint[0]; N"A`tc5&
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privateint startIndex = 0; IsiBn(1Z
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public PaginationSupport(List items, int K#LDmC
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totalCount){ eXi}-~o
setPageSize(PAGESIZE); eS/Au[wS
setTotalCount(totalCount); ZKt`>KZ
setItems(items); W~j>&PK,?
setStartIndex(0); A,4Z{f83
} -+y3~^EYm,
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public PaginationSupport(List items, int zKfY0A R
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totalCount, int startIndex){ yq12"Rs
setPageSize(PAGESIZE); nQ#NW8*Fs
setTotalCount(totalCount); z[WdJN{
setItems(items); yb) a
setStartIndex(startIndex); B7(bNr
} ={\9-JJhE
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public PaginationSupport(List items, int J+m1d\lBu
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totalCount, int pageSize, int startIndex){ v(;n|=O
setPageSize(pageSize); $S/EIN c
setTotalCount(totalCount); Qv]>L4PO
setItems(items); <=]:ED $V@
setStartIndex(startIndex); 1!;4I@W(I)
} h-6x! 6pm
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publicList getItems(){ LoW}!,|
return items; 4 {+47=n
} O% 8>siU
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publicvoid setItems(List items){ \G2PK&)F
this.items = items; auAwZi/
} O?0`QMY
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publicint getPageSize(){ Ge1"+:tbJ
return pageSize; S5[}kfe
} 465?,EpS
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publicvoid setPageSize(int pageSize){ ?hKpJA'%
this.pageSize = pageSize; *BKIA
} ]QJ7q}
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publicint getTotalCount(){ {J-Ojw|Y b
return totalCount; 4A)_D{(SH
} _Uhl4Mh
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publicvoid setTotalCount(int totalCount){ C0W-}H
if(totalCount > 0){ d
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this.totalCount = totalCount; yC7lR#N8j0
int count = totalCount / 5C-XQS1
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pageSize; 6S^JmYq
if(totalCount % pageSize > 0) akzKX}
count++; W!JEl|]
indexes = newint[count]; 4xgfm.9I^
for(int i = 0; i < count; i++){ 6Oy6r
indexes = pageSize * cG{
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} uG(XbDZZ1W
}else{ r%%@~ \z
this.totalCount = 0; /]2I%Q
} Se>v|6
} FY
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publicint[] getIndexes(){ 6
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return indexes; w`[`:H_z
} &.JJhX
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publicvoid setIndexes(int[] indexes){ )\J~KB4
this.indexes = indexes; cyB2=,
} WQMoAPfqL
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publicint getStartIndex(){ G)&!f)6
return startIndex; k=9k4l
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publicvoid setStartIndex(int startIndex){ M|7][!<G!
if(totalCount <= 0) (#+81 Dr
this.startIndex = 0; ysFp$!9Ux
elseif(startIndex >= totalCount) zpg512\y
this.startIndex = indexes G$2Pny<!
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[indexes.length - 1]; |Rz}bsrZ
elseif(startIndex < 0) : :928y
this.startIndex = 0; @{ L|&Mk!
else{ S~M/!Xb
this.startIndex = indexes HahA} Q
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[startIndex / pageSize]; u]P9ip"Z
} ~J
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publicint getNextIndex(){ 79B+8= K
int nextIndex = getStartIndex() + Nx!7sE*b$1
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pageSize; uM9Gj@_
if(nextIndex >= totalCount) #
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return getStartIndex(); nLR
else $|VdGRZ1
return nextIndex; eWXR #g!%>
} OX [r\
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publicint getPreviousIndex(){ DIgur}q)@
int previousIndex = getStartIndex() - ?y,KN}s_
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pageSize; f n8|@)J
if(previousIndex < 0) $<L@B|}F)
return0; XE#$|Z
else NleMZ
return previousIndex; JO~62='J
} <slrzc_>&
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抽象业务类 uW4.Q_O!H
java代码: <VhD>4f{]
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/** KLjvPT\
* Created on 2005-7-12 &,* ILz
*/ whFJ]
package com.javaeye.common.business; o* e'D7
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import java.io.Serializable; 77'@U(
import java.util.List; 'f8'|o)
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import org.hibernate.Criteria; =&m;5R
import org.hibernate.HibernateException; 1!
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import org.hibernate.Session; li0)<("/
import org.hibernate.criterion.DetachedCriteria; z&\N^tBv
import org.hibernate.criterion.Projections; 7tne/Yz
import U#{(*)qr
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org.springframework.orm.hibernate3.HibernateCallback; 8[#EC 3
import Zh_3ydMD1
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org.springframework.orm.hibernate3.support.HibernateDaoS MjbgAH-
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upport; x:c'ek
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import com.javaeye.common.util.PaginationSupport; WP'.o
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public abstract class AbstractManager extends c= aZ[
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HibernateDaoSupport { G/_xn5XDD
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privateboolean cacheQueries = false; !Z0S@]C
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privateString queryCacheRegion; 2nCHL'8N
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publicvoid setCacheQueries(boolean gLlA'`!
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cacheQueries){ ]C{N4Ni^Z
this.cacheQueries = cacheQueries; 9t8ccr
} w}8=sw
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publicvoid setQueryCacheRegion(String cfy9wD
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queryCacheRegion){ olm'_{{
this.queryCacheRegion = YoZd,} i
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queryCacheRegion; E!`/XB/nA
} +~7[T/v+n
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publicvoid save(finalObject entity){ ,+x\NY2d
getHibernateTemplate().save(entity); Sg13Dp@x
} TN/&^/
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publicvoid persist(finalObject entity){ v7v>
getHibernateTemplate().save(entity); :Ye~I;"8
} aHPx'R
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publicvoid update(finalObject entity){ \*pS4vy5x
getHibernateTemplate().update(entity); @P[%6 d
} fT=ZiHJ3Gu
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publicvoid delete(finalObject entity){ r
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getHibernateTemplate().delete(entity); 9e&*++vf
} Djf~8q V!
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publicObject load(finalClass entity, ANR611-a
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finalSerializable id){ J+`gr_&
return getHibernateTemplate().load m-qOyt
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(entity, id); !_?HSDAj"n
} <!X]$kvG
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publicObject get(finalClass entity, e)i-$0L"
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finalSerializable id){ E.yc"|n7l2
return getHibernateTemplate().get wHQYBYKcd
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(entity, id); oJI+c+e"
} l_fERp#y
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publicList findAll(finalClass entity){ XLm@, A[
return getHibernateTemplate().find("from u;8bbv4
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" + entity.getName()); {[+Q\<