Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 *`tQX$F
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 .GW)"`HbU
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据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 =1mIk0H`
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 ck8Qs08
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分页支持类: g;y*F;0@
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java代码: &hzr(v~;
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package com.javaeye.common.util; k6_OP]
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import java.util.List; "%=K_WJ?
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publicclass PaginationSupport { PC)V".W1
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publicfinalstaticint PAGESIZE = 30; M5]$w]Ny9
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privateint pageSize = PAGESIZE; lq27^K
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privateList items; @h7
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privateint totalCount; c$)!02
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privateint[] indexes = newint[0]; w)gMJX/0yw
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privateint startIndex = 0; J5\2`U_FZ
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public PaginationSupport(List items, int W1UqvaR
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totalCount){ 8;Df/%
setPageSize(PAGESIZE); hx@E,
setTotalCount(totalCount); @ds.)sKA>
setItems(items); :?7^STc
setStartIndex(0); rf$eg
} bw[K^/
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public PaginationSupport(List items, int `I5So-^&z
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totalCount, int startIndex){ DQ_ pLXCC
setPageSize(PAGESIZE); d^XRkB:h
setTotalCount(totalCount); )`m/vYKWL
setItems(items); qTnk>g_oS&
setStartIndex(startIndex); K.6xNQl{}
} O,7*dniH
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public PaginationSupport(List items, int Bj\ oo+L/
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totalCount, int pageSize, int startIndex){ qBWt(jY
setPageSize(pageSize); b#_u.vP
setTotalCount(totalCount); /k^O1+]H
setItems(items); Y;q['h
setStartIndex(startIndex); $C6O<A
} 4iZ7BD
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publicList getItems(){ `"j _]
return items; Iy{&T#e"
} i>@"&
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publicvoid setItems(List items){
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this.items = items; I~7eu&QZ
} B_|jDH#RyJ
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publicint getPageSize(){ 0'^zIL#.
return pageSize; V?Ye^-29
} K#'{Ko
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publicvoid setPageSize(int pageSize){ {;Y2O.lV
this.pageSize = pageSize; tje
} A(qy>x-BI
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publicint getTotalCount(){ -8, lXrH
return totalCount; 8E\6RjM
} 2sXX0kq~V
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publicvoid setTotalCount(int totalCount){ >t}0o$\?E
if(totalCount > 0){ nHmi%R7k
this.totalCount = totalCount; _#6ekl|%
int count = totalCount / !l1ycQM
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pageSize; ?hwT{h
if(totalCount % pageSize > 0) HESORa;
count++; BF>3CW7
indexes = newint[count]; vOYG&)Jm
for(int i = 0; i < count; i++){ w>$2
indexes = pageSize * uWKc
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}else{ F;^GhiQVS
this.totalCount = 0; H{3A6fb<
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} :TzHI
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publicint[] getIndexes(){ <kr%ylhIu
return indexes;
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publicvoid setIndexes(int[] indexes){ 7+vyN^XJ"5
this.indexes = indexes; O0i[GCtP5
} G&/RJLX|w
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publicint getStartIndex(){ OJ:iQ
return startIndex; m# ]VdO'f
} /HmD/E\
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publicvoid setStartIndex(int startIndex){ 7TjK;w7xS.
if(totalCount <= 0) 7Bhi72&6
this.startIndex = 0; >1=sw
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elseif(startIndex >= totalCount) mw1|>*X&R
this.startIndex = indexes {$ghf"
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[indexes.length - 1]; 7VdG6`TDR
elseif(startIndex < 0) P+Ta|-
this.startIndex = 0; (Wu_RXfCw_
else{ Q!<b"8V]
this.startIndex = indexes qUY QN2wG
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[startIndex / pageSize]; +)4_1i4"x
} jHj*S9:`
} {Y! -]_5
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publicint getNextIndex(){ @,RrAL}|
int nextIndex = getStartIndex() + )(|+z'
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pageSize; &?=UP4[oif
if(nextIndex >= totalCount) W^Jh'^E
return getStartIndex(); U[b$VZ}
else x7=5 ;gf/X
return nextIndex; rQ^$)%uP
} p}j$p'D.RI
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publicint getPreviousIndex(){ XO*62>Ed
int previousIndex = getStartIndex() - JR1/\F<}
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pageSize; OE(Z)|LF
if(previousIndex < 0) (dxkDS-G
return0; _[8BAm
else 4
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return previousIndex; Xx~XW^lsh
} NX^%a1D!
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} TixXA:Mf
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抽象业务类 vt3yCS
java代码: _
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/** k{3:$,
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* Created on 2005-7-12 s5X .(;+
*/ \7QAk4I~
package com.javaeye.common.business; R <+K&_
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import java.io.Serializable; 2G'Au} q0n
import java.util.List; wD-(3ZVd4
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import org.hibernate.Criteria; Z?H#=|U
import org.hibernate.HibernateException; ,ufB*[~
import org.hibernate.Session; F)mlCGv:R
import org.hibernate.criterion.DetachedCriteria; X0Q};,
import org.hibernate.criterion.Projections; _
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import 7tgn"wK
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org.springframework.orm.hibernate3.HibernateCallback; IiG~l+V~
import Nb2]}; O
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org.springframework.orm.hibernate3.support.HibernateDaoS <!#6c :(Q
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upport; !xm87I
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import com.javaeye.common.util.PaginationSupport; ;Jex#+H(:D
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public abstract class AbstractManager extends J;pn5k~3
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HibernateDaoSupport { d7+YCi?
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privateboolean cacheQueries = false; gw0b>E8gZ&
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privateString queryCacheRegion; ^PY*INv
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publicvoid setCacheQueries(boolean |kL^k{=zV
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cacheQueries){ +@wa?"
this.cacheQueries = cacheQueries; }v[*V
} z\Vu`Yz
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publicvoid setQueryCacheRegion(String ;Ub;AqY
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queryCacheRegion){ 9*gD;) !
this.queryCacheRegion =
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queryCacheRegion; }R#YO$J7
} a $pxt!6
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publicvoid save(finalObject entity){ >r] bfN,
getHibernateTemplate().save(entity); JTw\5j
} KUG\C\z6=
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publicvoid persist(finalObject entity){ kYw k'\s
getHibernateTemplate().save(entity); !ydJ{\;
} HE911 lc:
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publicvoid update(finalObject entity){ Pa PQ|Pwz
getHibernateTemplate().update(entity); ]+O];*T
} RkVU^N"
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publicvoid delete(finalObject entity){ &K@2kq,
getHibernateTemplate().delete(entity); DN)Ehd.
} &?\ h[3
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publicObject load(finalClass entity, ngM>Tzirt
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finalSerializable id){ &]gw[
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return getHibernateTemplate().load v=15pW
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(entity, id); {64od0:T
} /an$4?":~
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publicObject get(finalClass entity, GQXN1R
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finalSerializable id){ FCv3ZF?K
return getHibernateTemplate().get sr!m
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(entity, id); /PbN!r<1
} iOI8'`mk
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publicList findAll(finalClass entity){ ,"!t[4p=f
return getHibernateTemplate().find("from eC:?j`H-
FBpf_=(_1
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} <$)F_R~T3
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publicList findByNamedQuery(finalString .Ua|KKK C
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namedQuery){ F+r3~T%
return getHibernateTemplate zCxr]md
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().findByNamedQuery(namedQuery); Iuk!A?XV
} '&{`^l/MH
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publicList findByNamedQuery(finalString query, e1ru#'z
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finalObject parameter){ MM8r*T4g/
return getHibernateTemplate }Z5#{Sd
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().findByNamedQuery(query, parameter); q~9Y&>D
} y'ULhDgq^B
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publicList findByNamedQuery(finalString query, _MfXN$I?}
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finalObject[] parameters){ qOO2@c
return getHibernateTemplate _]W
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().findByNamedQuery(query, parameters); HY[eo/nM1d
} {U?UM
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publicList find(finalString query){ KTX;x2r
return getHibernateTemplate().find C.M]~"e
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(query); 8w &