Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ^|!I+
Hr<o!e{Y
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 m#vL*]c}
-r7]S
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 bzN-*3YE=
w|[RDaA b
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 \2 y5_;O
kq=V4-a[
。 ~EzaC?fQ
GoM
ip8'u
分页支持类: !y:%0{l
mmXm\]r>4
java代码: V/d/L3p
}x0- V8
qa`-* 4m
package com.javaeye.common.util; N2'qpxOLI
Z?P~z07
import java.util.List; nl aM
j@gMbiu
publicclass PaginationSupport { >'uU)Y{
}A=y=+4j
publicfinalstaticint PAGESIZE = 30; cF)/^5Z
B+d<F[|
privateint pageSize = PAGESIZE; F>je4S;
|{r$jZeE
privateList items; j%u-dr
N,dT3we
privateint totalCount; M 3 '$[
f/,>%j=Ms
privateint[] indexes = newint[0]; _@mRb^
l>gI&1)%
privateint startIndex = 0; xT&(n/
2T@GA1G
public PaginationSupport(List items, int kd`0E-QU
D_mL,w
totalCount){ 7?8wyk|x
setPageSize(PAGESIZE); {5r0v#;
setTotalCount(totalCount); >T2LEW
setItems(items); aI(7nJ=R
setStartIndex(0); NcOPL\
} o%{'UG
)n49lr6X
public PaginationSupport(List items, int :A
%^^F%
5!YA o\S
totalCount, int startIndex){ %J:SO_6
setPageSize(PAGESIZE); bzDIhnw
setTotalCount(totalCount); 8P7"&VYc8
setItems(items); 3f" %G\
setStartIndex(startIndex); vK7\JZ>
} *-W#G}O0
n+@F`]Ke
public PaginationSupport(List items, int (&|_quP7O
$Nrm!/)*'}
totalCount, int pageSize, int startIndex){ <~TP#uAz
setPageSize(pageSize); pLa[}=
setTotalCount(totalCount); '{I_\~*
setItems(items); =deMd`=J
setStartIndex(startIndex); fDE%R={!n5
} C51bc6V
CQ`=V2:"ON
publicList getItems(){ LE5.b]tv2
return items; BqDKT
} dkgSvi :!
YprHwL
publicvoid setItems(List items){ 5uq3\a
this.items = items; fO'Wj`&a
} 0]QRsVz+
ETp%s{8
publicint getPageSize(){ y@2epY?{
return pageSize; I? THa<
} nJ4@I7Sk;
gBT2)2]
publicvoid setPageSize(int pageSize){ 7 n]65].t
this.pageSize = pageSize; Uv
YF[@
} 7Dnp'*H
l`kWz5[~
publicint getTotalCount(){ 5aad$f
return totalCount; .=m,hu~
} x!\ONF5$
oH0X<'
publicvoid setTotalCount(int totalCount){ 43?^7_l-
if(totalCount > 0){ _&K
this.totalCount = totalCount; |KB0P@=a
int count = totalCount / U\/5;Txy(
!D!~^\
pageSize; hA\K</h.
if(totalCount % pageSize > 0) [."[pY
count++; `V)Z)uN{0
indexes = newint[count]; p a}*E
for(int i = 0; i < count; i++){ ]yjl~3
indexes = pageSize * 9/+Nj /
:o:e,WKxb
i; %WqNiF0-
} {`2R,Jb%S
}else{ UobyK3.%
this.totalCount = 0; o=FE5"t
} 85EQ5yY
} #%J5\+ua
$+.l*]
publicint[] getIndexes(){ l3N I$Zu
return indexes; 7t,t`
} dU\%Cq-G)
*[=bR>
publicvoid setIndexes(int[] indexes){ "V{yi!D{<
this.indexes = indexes; G:x*BH+
} e><5Pr)
7~#:>OjW
publicint getStartIndex(){ E\gim<]
return startIndex; \{Q?^E
} S+TOSjfis
\om%Q[F7a
publicvoid setStartIndex(int startIndex){ {3N'D2N
if(totalCount <= 0) L4uFNM]
this.startIndex = 0; OL_{_K(w
elseif(startIndex >= totalCount) 8M@BG8
this.startIndex = indexes wts=[U`(
uEc<}pV
[indexes.length - 1]; -
0?^#G}3}
elseif(startIndex < 0) GUsl PnG
this.startIndex = 0; cb5,P~/q
else{ 2Z20E$Cb
this.startIndex = indexes 42>Ge>#F
Qt]Q:9I[
[startIndex / pageSize]; s=?g \oR
} 8kP3+
} &rkEK4
p4V eRJk%
publicint getNextIndex(){ zhY+x<-
int nextIndex = getStartIndex() + *T0q|P~o%
k6=nO?$
pageSize; `9k0Gd
if(nextIndex >= totalCount) 0Z{j>=$
return getStartIndex(); npRSE v
else r>GZ58i
return nextIndex; #+$Q+Z|6k
} v&Kqq!DE
!mXxAo
publicint getPreviousIndex(){ =@F&o4) r
int previousIndex = getStartIndex() - r-,e;o>9
gWY"w!f
pageSize; m7T)m0
if(previousIndex < 0) h*ZC*eV>
return0; #07g d#j4
else :!zl^J;
return previousIndex; &@ JvnO:
} (k np#
$ cj>2.
} };'\~g,1
nC{%quwh{
*.)tG
9W5onn
抽象业务类 t43)F9!
java代码: <3,<\ub
b,8{ X<
qC'{;ko
/** _HhbIU
* Created on 2005-7-12 "vtCTl~t
*/ NH_<q"gT
package com.javaeye.common.business; !nAX$i~
?`J[[",
import java.io.Serializable; ~}Rj$%_
import java.util.List; r H ~" 4
[@4rjGwB
import org.hibernate.Criteria; HYmn:?H
import org.hibernate.HibernateException; <V>dM4Mkr
import org.hibernate.Session; UwC=1g U
import org.hibernate.criterion.DetachedCriteria; _#vrb;.+
import org.hibernate.criterion.Projections; Xy%p "b<
import imiR/V>N
7 I>G{
org.springframework.orm.hibernate3.HibernateCallback; epgPT'^
import sUPz/Z.h
)&
u5IA(
org.springframework.orm.hibernate3.support.HibernateDaoS ;NlWb =
``E/m<r:$
upport; <id}<H
,-z9 #t
import com.javaeye.common.util.PaginationSupport; %\i9p]=
z5TuGYb<
public abstract class AbstractManager extends >ooZj9:'
"n*~Mj Ny
HibernateDaoSupport { +Jr|z\
p<:!)kt
privateboolean cacheQueries = false; ~Ch+5A;
*}8t{ F@k
privateString queryCacheRegion; J:skJ.Wx
puT'y
publicvoid setCacheQueries(boolean 8mQmi`
6]-SK$
cacheQueries){ ur$l Z0
this.cacheQueries = cacheQueries; +>4;Z d!@d
} } CfqG?)
IIyI=WlpG
publicvoid setQueryCacheRegion(String &?h,7
D;A
b:w?PC~O
queryCacheRegion){ Ag@;
this.queryCacheRegion = ;`6^6p\p
|2KAo!PI
queryCacheRegion; 2YDM9`5xs\
} ~RWktv
MMj9{ou
publicvoid save(finalObject entity){ ,*7d
getHibernateTemplate().save(entity); -ig6w.%lk
} wd)jl%
/@|/^vld
publicvoid persist(finalObject entity){ f^VP/rdg
getHibernateTemplate().save(entity); KgR<E
} 8n>9;D5n
im @h -A]0
publicvoid update(finalObject entity){ LQjsOo
getHibernateTemplate().update(entity); yBI'djL~>
} T*KMksjxm`
7k8 pZ
publicvoid delete(finalObject entity){ JY6
Qp
getHibernateTemplate().delete(entity); XU"~h64]
} {GJ@psG*
k?'B*L_Mzv
publicObject load(finalClass entity, ?Ae ven
4rrSb*
finalSerializable id){ /d%=E
return getHibernateTemplate().load B7!3-1<k>
!o$!Fr c
(entity, id); aE2.L;Tk?
} t]-5 ]oI
x*/S*!vx\
publicObject get(finalClass entity, ^yOZArc'r
4R\Hpt
finalSerializable id){ -a-(r'Qc(
return getHibernateTemplate().get [Jv@J\
#t+d iR
(entity, id); f%*/cpA)
} 8]LD]h)B"
Z4\=*ic@
publicList findAll(finalClass entity){ w4gg@aO
return getHibernateTemplate().find("from |iwP:C^\mJ
_]:z \TDn
" + entity.getName()); #_u~/jhX
} Hhh0T>gi
KRA/MQ^7~U
publicList findByNamedQuery(finalString _F`lq_C
bcYF\@};
namedQuery){ 6H7],aMg$A
return getHibernateTemplate 4#lo$#
9yfJVg
().findByNamedQuery(namedQuery); q|),`.eh\
} Q@HopiC
eow'K
821A
publicList findByNamedQuery(finalString query, )vSRHE
5D'\b}*lJ}
finalObject parameter){ [W7CXZDd
return getHibernateTemplate d m`E!R_
@<