Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 AWf zMJ;VS
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 .[CXW2k
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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 S&]JY
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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 .11iulQ
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分页支持类: (s"_NU j6
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java代码: BD9` +9
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package com.javaeye.common.util; *D|6g|Hb
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import java.util.List; i{%~&!
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publicclass PaginationSupport { GR|Vwxs<@P
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publicfinalstaticint PAGESIZE = 30; M/B_-8B_D
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privateint pageSize = PAGESIZE; I5 [r-r
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privateList items; m2 N
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privateint totalCount; BT`6v+,h7k
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privateint[] indexes = newint[0]; JfC.U,7Nc
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privateint startIndex = 0; "-I>
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public PaginationSupport(List items, int 6,oi(RAf
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totalCount){ ;r`[6[AG
setPageSize(PAGESIZE); 9hLPo
setTotalCount(totalCount); ;/e!!P]jP
setItems(items); A03PEaZO
setStartIndex(0); fC(lY4,H3R
} ko ~iDT
} |sP;Rpu
public PaginationSupport(List items, int [q_Yf!(m-
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totalCount, int startIndex){ `~*qjA
setPageSize(PAGESIZE); ?VReKv1\
setTotalCount(totalCount); f^0vkWI2
setItems(items); 8zZR%fZ
setStartIndex(startIndex); lOZ.{0{f,
} <Z#u_:5@
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public PaginationSupport(List items, int EB>laZy>
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totalCount, int pageSize, int startIndex){ o F@{&
setPageSize(pageSize); 5#:tL&q
setTotalCount(totalCount); ( 6r9y3'
setItems(items); sPbtv[bC
setStartIndex(startIndex); rWa7"<`p
} m*["
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publicList getItems(){ (4b&}46
return items; Tk+\Biq
} %_A1WC
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publicvoid setItems(List items){ oYOf<J
this.items = items; %s<7|,
} E%+V\ W%
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publicint getPageSize(){ ym1TGeFAq
return pageSize; J!S3pS5j
} \'1%"JWK
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publicvoid setPageSize(int pageSize){ ]=h
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this.pageSize = pageSize; O|av(F9
} kv) LH{
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publicint getTotalCount(){ ]4hXK!^Uu
return totalCount; ,Hp9Gkm8I/
} G::6?+S
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publicvoid setTotalCount(int totalCount){ nw\p3
if(totalCount > 0){ m<OxO\ Mpf
this.totalCount = totalCount; wX|]8f2Z
int count = totalCount / >)5rOU
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pageSize; t7-sCC0
if(totalCount % pageSize > 0) z*x6V0'yt
count++; LzgD#Kz
indexes = newint[count]; HqN|CwGgJ:
for(int i = 0; i < count; i++){ ydlH6 >
indexes = pageSize * }KZ/>Z;^
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} u5idH),<
}else{ 8t6h^uQ
this.totalCount = 0; {d )Et;_
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} #|$7. e
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publicint[] getIndexes(){ VgoQz]z
return indexes; E$Ge#
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} Y*"%;e$tg
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publicvoid setIndexes(int[] indexes){ Oq! u `g9
this.indexes = indexes; ` 6"\.@4
} %DRDe
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publicint getStartIndex(){ s/A]&!`
return startIndex; Q/0}AQO
} 8uCd|dJ
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publicvoid setStartIndex(int startIndex){ t`DUY3>36
if(totalCount <= 0) sCnZ\C@u
this.startIndex = 0; EBebyQcon
elseif(startIndex >= totalCount) O;,k~
this.startIndex = indexes sIELkF?.
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[indexes.length - 1]; cHR }`U$
elseif(startIndex < 0) KY_qK)H
this.startIndex = 0; .h*&$c/l
else{ ` D4J9;|;]
this.startIndex = indexes Y,)9{T
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[startIndex / pageSize]; 6tnAE':
} pp{%\td
} I5 2wTl0
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publicint getNextIndex(){ ^?juY}rZ=|
int nextIndex = getStartIndex() + WUqAPN
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pageSize; sI^1c$sBN
if(nextIndex >= totalCount) Ex*g>~e
return getStartIndex(); =%RDT9T.
else r &TxRsg{
return nextIndex; !`aodz*PO
} s:fnOMv
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publicint getPreviousIndex(){ (@&|
int previousIndex = getStartIndex() - WxXVL"
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pageSize; 6XX5K@
if(previousIndex < 0) [KjQW/sb'
return0; +_`F@^R_
else Th!S?{v
return previousIndex; =jG3wf*
} -(1e!5_-@
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} -7+Fb^"L
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抽象业务类 .{8lG^0U<
java代码:
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/** 5hDE&hp
* Created on 2005-7-12 *Pq`~W_M7
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package com.javaeye.common.business; 1 9)78kV{
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import java.io.Serializable;
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import java.util.List; IGI2).$[
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import org.hibernate.Criteria; 9ge$)q@3
import org.hibernate.HibernateException; zR5D)`Ph
import org.hibernate.Session; $/d~bk@=l
import org.hibernate.criterion.DetachedCriteria; ~S=hxKI
import org.hibernate.criterion.Projections; fc\hQXYv
import Sa<R8X'J
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org.springframework.orm.hibernate3.HibernateCallback; vJcvyz#%1
import :Mt/6}
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org.springframework.orm.hibernate3.support.HibernateDaoS PH=wPft
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upport; d&U;rMEv
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import com.javaeye.common.util.PaginationSupport; 89 lPeFQ`
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public abstract class AbstractManager extends pcEB-boI9
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HibernateDaoSupport { "<.b=mN-
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privateboolean cacheQueries = false; c76^x
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privateString queryCacheRegion; XM_S"
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publicvoid setCacheQueries(boolean ^.<IT"
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cacheQueries){ L~;_R*Th
this.cacheQueries = cacheQueries; v'iQLUgI
} ,
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publicvoid setQueryCacheRegion(String t71 0sWh{
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queryCacheRegion){ A&t}s
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this.queryCacheRegion = )c!f J7o:
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queryCacheRegion; O0Z'vbFG
} +
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publicvoid save(finalObject entity){ Yhx~5p
getHibernateTemplate().save(entity); * dNMnZ@Y
} ,Y&kW'2
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publicvoid persist(finalObject entity){ 0u0Hl% nl
getHibernateTemplate().save(entity); 2s(K4~e e
} lca.(3u
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publicvoid update(finalObject entity){ R.RCa$
getHibernateTemplate().update(entity); &0o&!P8CB
} ~7Jc;y&
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publicvoid delete(finalObject entity){ QR,i
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getHibernateTemplate().delete(entity); T*H4kM
} 66BsUA.h
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publicObject load(finalClass entity, Y- w5S|!
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finalSerializable id){ GN{.R7
return getHibernateTemplate().load *.K}`89T
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(entity, id); UkGUxQ,GU
} #6YNgJNk
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publicObject get(finalClass entity, !WIL|\jbh
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finalSerializable id){ .lE"N1
return getHibernateTemplate().get QP qa\87
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(entity, id); *F9uv)[kz
} [`
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publicList findAll(finalClass entity){ 00$W>Gr
return getHibernateTemplate().find("from -MU^%t;-
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" + entity.getName()); vu*08<M~i|
} WM"I
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publicList findByNamedQuery(finalString w.V8-9{
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namedQuery){ =6%0pu]0
return getHibernateTemplate c5]1aFKz
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().findByNamedQuery(namedQuery); 7zNyH(.
} @ 8SYV}0H
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publicList findByNamedQuery(finalString query, 1ITa6vjS
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finalObject parameter){ MqNp*n2
return getHibernateTemplate i.'f<z$<
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().findByNamedQuery(query, parameter); Oc"2|X
} 9x:c"S*
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publicList findByNamedQuery(finalString query, 3 =S.-
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finalObject[] parameters){ muY4:F.C(
return getHibernateTemplate mH8"k+k
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().findByNamedQuery(query, parameters); }5%!:=
} 0{jRXa-(
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publicList find(finalString query){ g{nu3F}8){
return getHibernateTemplate().find k3e
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(query);
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} ` bg{\ .q
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publicList find(finalString query, finalObject ~xA'-N/
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parameter){ 0Uybh.dC
return getHibernateTemplate().find qUVV374N
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