Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 o 7W Kh=
in#]3QGV
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 rjHIQC C
uk[< 6oxz
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 nIQ&gbfO
kgapTv>q
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 z<%g
#bo
w&yGYHg
。 _b_?9b-)D
``|RO[+2
分页支持类: dMs||&|&
^qGA!_
java代码: X";ZUp
15KV}){
M&/aJRBS
package com.javaeye.common.util; wK'! xH^
OssR[$69
import java.util.List; TT2cOw
D"XX920$~
publicclass PaginationSupport { \!JS7!+
!\-4gr?`!
publicfinalstaticint PAGESIZE = 30; KU|BT.o8
"WbVCT'i
privateint pageSize = PAGESIZE; g(1B W#$
4s~HfxYT
privateList items; #CA%]*l*F
>$naTSJq
privateint totalCount; 4[#6<Ixf
\}Acq;
privateint[] indexes = newint[0]; poQdI?ed,
F|?+>c1}
privateint startIndex = 0; /pN'K5@
a WeBav}_
public PaginationSupport(List items, int $HBT%g@UN
juMxl
totalCount){ :Wg-@d
setPageSize(PAGESIZE); (#bp`Kih
setTotalCount(totalCount); 8VuZ,!WH#
setItems(items); l{6` k<J(
setStartIndex(0); =,4
'"
} b-BM"~N'
o)#q9Vk%b
public PaginationSupport(List items, int $xA J9_2P
~llMrl7
totalCount, int startIndex){ q11QAx4p
setPageSize(PAGESIZE); uKbHFF
setTotalCount(totalCount); b
H"}w$!>r
setItems(items); j&dx[4|m:h
setStartIndex(startIndex); vS$oT]-hKE
} *
{gxI<
dY/u<4
public PaginationSupport(List items, int +[whh
p,w|=@=
totalCount, int pageSize, int startIndex){ w53z*l>ek
setPageSize(pageSize); ZD)0P=%
setTotalCount(totalCount); ESD<8OR
setItems(items); -VWCD,c
setStartIndex(startIndex);
!@pV)RUv7
} =! N _^cb
to&N22a$
publicList getItems(){ \5Vp6^
return items; lk_s!<ni
} mQJ4;BJw
E kBae=
publicvoid setItems(List items){ 3w/( /|0
this.items = items; crd|2bjp+
} {_zV5V
[`.3f'")j
publicint getPageSize(){ Km)X_}|
return pageSize; xd^&_P$=
} q%-&[%l
lf%b0na?r
publicvoid setPageSize(int pageSize){ >f\zCT%cf
this.pageSize = pageSize; -BA"3 S
} fJLf7+q
#\pP2
publicint getTotalCount(){ H(15vlOD
return totalCount; cy) k<?,
} I9}+(6
:[Qp2Gg O\
publicvoid setTotalCount(int totalCount){ R}DX(T,K
if(totalCount > 0){ x.b; +p}=
this.totalCount = totalCount; 'e.q
7Jpd
int count = totalCount / vWU%ST
Opv1B2
pageSize; +_qh)HX
if(totalCount % pageSize > 0) f?%qUD_#
count++; `'p`PyMt`
indexes = newint[count]; rI0)F
for(int i = 0; i < count; i++){ rIeM+h7W n
indexes = pageSize * rDVgk6
}RcK_w@Jx)
i; (8CCesy&
} \!^i;1h0c3
}else{ 3`58ah
this.totalCount = 0; ;>9OgO
} b fp,zs
} \ Y*h
},DyU
publicint[] getIndexes(){ n{dP@_>WS
return indexes; [ULwzjss#L
} 4~O6$;!|~
Zc-#;/b3T
publicvoid setIndexes(int[] indexes){ GAv)QZyV$
this.indexes = indexes; +XEjXH5K
} 0iYP
u_N\iCYp
publicint getStartIndex(){ b.#^sm//
return startIndex; |d
$1wr
} =G(*gx
$ZQ"({<w<g
publicvoid setStartIndex(int startIndex){ F9MR5O"
if(totalCount <= 0) Yeqvv
this.startIndex = 0; q*L
]
elseif(startIndex >= totalCount) sNm,Fmuz:
this.startIndex = indexes oW^k7#<e}
~xS@]3n=
[indexes.length - 1]; 5k69F
elseif(startIndex < 0) RCI4~q
this.startIndex = 0; aH%ZetLNJ
else{ 1Gsw-a;a
this.startIndex = indexes !:(C"}5wM
:.#z
[startIndex / pageSize]; "YJ[$TG
} nO~b=qO
} |GtY*|
/D0RC
publicint getNextIndex(){ 8;TAb.r
int nextIndex = getStartIndex() + 75ZH
cVp[ Z#B
pageSize; H+a~o=/cR
if(nextIndex >= totalCount) k({2yc#RD&
return getStartIndex(); q( IZJGb
else m}98bw
return nextIndex;
rFo\+//
} }sv!=^}BY3
ejVdxVr \7
publicint getPreviousIndex(){ 5MxH)~VQoM
int previousIndex = getStartIndex() - WSQ[.C
{O)YwT$`
pageSize; MY!q%
if(previousIndex < 0) \yNQQ$B
return0; lW
p~t
else EY kj@
.,
return previousIndex; Y+g,pX
} .(|+oHg<
BDy5J2<<7l
} dIk'pA^d
B/mYoK
/|GT\X4o
F;u7A]H^
抽象业务类 &y70
java代码: s2%V4yy%
*(G&B\
4qt+uNe!
/** 7rcA[)<'
* Created on 2005-7-12 ;K_}A4K
*/ 1 tPVP
package com.javaeye.common.business; 87i"
f ba&`
import java.io.Serializable; T"?Y5t`(
import java.util.List; jv =EheD
%zzYleJ!]
import org.hibernate.Criteria; ca(U!T68
import org.hibernate.HibernateException; f^p^Y
F+
import org.hibernate.Session; EUy(T1Cl&&
import org.hibernate.criterion.DetachedCriteria; #--olEj!
import org.hibernate.criterion.Projections; .n`( X#,*l
import :?=Q39O9
XA)'=L!^
org.springframework.orm.hibernate3.HibernateCallback; RNTa XR+Zn
import rVH6QQF=\
Stxp3\jEn
org.springframework.orm.hibernate3.support.HibernateDaoS q\Rq!7(
*/w7?QOv
upport; ydQ!4
wiJRCH
import com.javaeye.common.util.PaginationSupport; CvK3H\.&;k
qbiK^gR
public abstract class AbstractManager extends X4wH/q^
ZQAO"huk]
HibernateDaoSupport { ,[isib3
6YmP[%
privateboolean cacheQueries = false; ;F5"}x
R)oB!$k
privateString queryCacheRegion; *%\mZ,s"
S/4r\6
publicvoid setCacheQueries(boolean jvHFFSK
uvnI>gv
cacheQueries){ r|GY]9
this.cacheQueries = cacheQueries; S8" f]5s
} zrRFn `B
Z/<#n\>t0>
publicvoid setQueryCacheRegion(String #f{lC0~vA
:+ Jt^
6
queryCacheRegion){ ET:T7
this.queryCacheRegion = {\G`]r-cM
+;Cr];b3
queryCacheRegion; #DFp[\)1
} V}"
g~=
53Yxz3v
publicvoid save(finalObject entity){ I [0!SIqY
getHibernateTemplate().save(entity); M:|8]y@
} _?`&JF