Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 [=[>1<L>
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 ~ [k0ay
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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 7{%_6b"
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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 eM";P/XaX
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分页支持类: RjC3wO::
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java代码: DlHt#Ob7
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package com.javaeye.common.util; =]k0*\PS
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import java.util.List; LO8`qq*rq
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publicclass PaginationSupport { %~eIx=s
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publicfinalstaticint PAGESIZE = 30; -?_#Yttu
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privateint pageSize = PAGESIZE; Ah5`Cnv
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privateList items; SvZ~xTit
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privateint totalCount; y:t@X~
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privateint[] indexes = newint[0]; rucgav
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privateint startIndex = 0; N`3q54_$
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public PaginationSupport(List items, int vGe];
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totalCount){ q~esxp
setPageSize(PAGESIZE); Ass :
setTotalCount(totalCount); 2a=3->D&
setItems(items); ]S@zhQ
setStartIndex(0); RLy(Wz3%
} -|0nZ
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public PaginationSupport(List items, int aQjs5RbP~
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totalCount, int startIndex){ 6_Ps*Ed
setPageSize(PAGESIZE); GM_~2Er]
setTotalCount(totalCount); +rAmy
setItems(items); E@}N}SR
setStartIndex(startIndex); hkS0 ae
} bTBV:]w
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public PaginationSupport(List items, int c`S`.WID
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totalCount, int pageSize, int startIndex){ tu5g> qb
setPageSize(pageSize); " pg5w
setTotalCount(totalCount); > 2)@(f~g
setItems(items); 9:DT+^BB
setStartIndex(startIndex); 3K;V3pJ].
} O52B
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publicList getItems(){ JWZG)I]r
return items; 8
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publicvoid setItems(List items){ bsuGZ
this.items = items; z):LF<
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publicint getPageSize(){ O0Z!*Hy
return pageSize; `O+}$wP
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publicvoid setPageSize(int pageSize){ h^QLvOuR
this.pageSize = pageSize; 6zyxGJ(
} {ef9ov Xk
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publicint getTotalCount(){ ={'3j
return totalCount; g=#Cc(
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} 0P_=Oy"l-
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publicvoid setTotalCount(int totalCount){ NL^;C3u
if(totalCount > 0){ \wZ
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this.totalCount = totalCount; ~,^pya
int count = totalCount / #%9t-
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pageSize; SEKR`2Zz,
if(totalCount % pageSize > 0) LZ=E
count++; NqlU?
indexes = newint[count]; /Fr*k5I
for(int i = 0; i < count; i++){ Ez1-Nx
indexes = pageSize * ylGT9G19
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} FhP$R}F
}else{ ;B^ 9sr
this.totalCount = 0; tDC?St1
} at|.Q*&a#
} } yb"/jp
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publicint[] getIndexes(){ V7 OhOLK8
return indexes; \sn
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} O#_\@f#[
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publicvoid setIndexes(int[] indexes){ UuKW`(?^
this.indexes = indexes; /4I9Elr
} "F[e~S#V*
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publicint getStartIndex(){ *Uw" `l
return startIndex; gB<1;_KW
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publicvoid setStartIndex(int startIndex){ ~0@uR
if(totalCount <= 0) u5.zckV
this.startIndex = 0; 9GX'+$R]
elseif(startIndex >= totalCount) l5T0x=y9!
this.startIndex = indexes Od("tLIO}I
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[indexes.length - 1]; BCmKzv
elseif(startIndex < 0) NwcRH9};i
this.startIndex = 0; {i<L<Y(3
else{ |4C5;"P c
this.startIndex = indexes <YM!K8hu$
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[startIndex / pageSize]; 2RU/oqmR
} 3,"G!0 y.
} )%JjV(:
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publicint getNextIndex(){ fKbg ?
int nextIndex = getStartIndex() + j6d{r\!$4
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pageSize; rDWwu'
if(nextIndex >= totalCount) /EW=OZ/
return getStartIndex(); Wh)>E!~9
else %oOSmt
return nextIndex; OwN~-).%-
} P6 7*-Ki
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publicint getPreviousIndex(){ "]bOpk T
int previousIndex = getStartIndex() - $ba*=/{[q
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pageSize; #[&9~za'"m
if(previousIndex < 0) (GoxiX l
return0; kr\#CW0?
else Bdcs}Ga
return previousIndex; I{$TMkh[
} I.gF38Mx
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抽象业务类 q:1n=iEi
java代码: pK"iTc#\X
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/** U
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* Created on 2005-7-12 )+Yu7=S
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package com.javaeye.common.business; z.!u<hy(
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import java.io.Serializable; lot;d3}
import java.util.List; YIs_.CTi
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import org.hibernate.Criteria; l>T]Y
import org.hibernate.HibernateException; v"*c\,
import org.hibernate.Session; _n0NE0
import org.hibernate.criterion.DetachedCriteria; gSHN,8.
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import org.hibernate.criterion.Projections; ,:{+-v(
import mLV0J '
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org.springframework.orm.hibernate3.HibernateCallback; OD~yIV
import dn&484
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org.springframework.orm.hibernate3.support.HibernateDaoS 3fUiYI|&7
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upport; !iL6 /
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import com.javaeye.common.util.PaginationSupport; <OrQbrWQa
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public abstract class AbstractManager extends 5S ) N&%
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