Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 1hQeuG
a;2Lgv0/
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 *Bgk3(n)
.^%!X!r
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 _Bh ^<D-
CQ+WBTiC
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 ZV;lr Vv
(t\
F>A
。 n
7Bua
]"Qm25`Qz
分页支持类: 1|c\^;cTkt
6fOh *
java代码: #6%9*Rh
^l(Kj3gM
`T]1u4^E
package com.javaeye.common.util; rfdT0xfcU
8=#J:LeXj
import java.util.List; w9J^s<e
RI
q9wD}4(
publicclass PaginationSupport { [aK7v{Wu
Ew|VDD(.
publicfinalstaticint PAGESIZE = 30; ' N@1+v=
] hxE^/8 7
privateint pageSize = PAGESIZE; (KF=v31_m
P,ox))+6
privateList items; E9L)dMZSpj
*Q@%<R
privateint totalCount; ^mu?V-4
>lRa},5(
privateint[] indexes = newint[0]; AJ*FQo.U
AIR\>.~"i*
privateint startIndex = 0; Q'ok%9q!p
xgi/,Nk '
public PaginationSupport(List items, int 0m|$ vb
W\tSXM-Hg
totalCount){ $1h , <$5H
setPageSize(PAGESIZE); b@yGa%Gz@
setTotalCount(totalCount); T@ [*V[
setItems(items); cG"+n@\
setStartIndex(0); +s}"&IV%
} Q599@5aS
u5,\Kz
public PaginationSupport(List items, int ?y\gjC6CNG
`~bnshUk
totalCount, int startIndex){ 2^}E!(<
setPageSize(PAGESIZE); *[(}rpp M
setTotalCount(totalCount); y3 R+060\3
setItems(items); L;7x2&
setStartIndex(startIndex); 0t-!6
} @@,l0/
7>a-`"`O
public PaginationSupport(List items, int Ri}n0}I
$LLy#h?V]
totalCount, int pageSize, int startIndex){ lJfn3
setPageSize(pageSize); 8}&O7zO?
setTotalCount(totalCount); 2\Vzfca
setItems(items); jORU+g
setStartIndex(startIndex); Z>)(yi9+
} !NNq( t
dJZMzn
publicList getItems(){ nQ0g,'o
return items; eRK
kHd-
} [,Io!O
ov{
publicvoid setItems(List items){ uIG,2u,
this.items = items; ZE ())W"
} wgK:^DP
;_.%S *W\
publicint getPageSize(){ !z
!R)6
return pageSize; [f'V pId8
} :<
;'.[h*u~<
publicvoid setPageSize(int pageSize){ 3J2j5N:g
this.pageSize = pageSize; j0p'_|)(
} 6iiH+Nc
zqaz1rt[
publicint getTotalCount(){ =kp-[7
return totalCount; gg>O:np8
} DA5kox&cU
Z\{"/( Hi
publicvoid setTotalCount(int totalCount){ `g2DN#q[0
if(totalCount > 0){ `wJR^O!e
this.totalCount = totalCount; 6]=R#d 7U
int count = totalCount / +Mb;;hb
uY,(3x
pageSize; TNA?fm
if(totalCount % pageSize > 0) 6gLk?^.
count++; t,mD{ENm&
indexes = newint[count]; (RP"VEVR
for(int i = 0; i < count; i++){ %<|w:z$vp
indexes = pageSize * $YM>HZe-
Pa.D+
i; OC$Y8Ofr
} l .8@F
}else{ 6dG:3n}
this.totalCount = 0; ##gq{hgjb$
} u? a*bW
} JmJ8s hq
J1waiOh
publicint[] getIndexes(){ Oy:;v7
return indexes; "T`Q,
} xwZcO
H'fmQf
publicvoid setIndexes(int[] indexes){ a=<l}`*
this.indexes = indexes; Le&SN7I
} r sf +dC
<1HbjRw
publicint getStartIndex(){ nu1s
return startIndex; B 4pJg
} R^`# xQ
S\"/=|\
publicvoid setStartIndex(int startIndex){ ZGUhje!
if(totalCount <= 0) G+^Q
_w
this.startIndex = 0; VP|ga}(
elseif(startIndex >= totalCount) EkV
LSur
this.startIndex = indexes #K8kz
aKkG[qN
[indexes.length - 1]; R<}n?f\#JZ
elseif(startIndex < 0) Cv@ZzILyoK
this.startIndex = 0; .w/_Om4T*b
else{ K:!|xr(1d
this.startIndex = indexes UenB4
-^m]Tb<u
[startIndex / pageSize]; [b-wak})aD
} >[]@Df,p
} l$ABOtM@
K5O8G
publicint getNextIndex(){ |Co ?uv
i
int nextIndex = getStartIndex() + {5tb.{
,q F;#nB-
pageSize; g5gq{KlU
if(nextIndex >= totalCount) iXp*G52
return getStartIndex(); j[zo~Y4z
else #HjiE
return nextIndex; Ww9%6 #it
} Q`nsL)J
=2[5g!qX
publicint getPreviousIndex(){ '.jr" 3u
int previousIndex = getStartIndex() - C
NDf&dzX8
[89qg+z
pageSize; K3QE>@']
if(previousIndex < 0) 0Q^a*7w`8a
return0; Zi&qa+F
else Nf.6:=
return previousIndex; `Pa)H
} cNi)[2o7
M_wqb'=
} /%w9F
'+6H= Qn
V)
#vvnq
bL: !3|M
抽象业务类 g4(vgWOW`
java代码: ,G, '#]
"pdq_35
W,<P])
/** 4l0ON>W(
* Created on 2005-7-12 xZJ
r*
*/ 5l"/lGw
package com.javaeye.common.business; W`}C0[%VW
@D<q=:k
import java.io.Serializable; mJBvhK9%
import java.util.List; Z x9oj
iNn]~L1
import org.hibernate.Criteria; |a7W@LVYD
import org.hibernate.HibernateException; u)]]9G
_8
import org.hibernate.Session; Z83A1`!.|
import org.hibernate.criterion.DetachedCriteria; 7X\azL
import org.hibernate.criterion.Projections; !&f(Xs
import vYT%e:8)q
aJ[K' 5|
org.springframework.orm.hibernate3.HibernateCallback; 3z^l
import YzTmXwuA5
F`W8\u'db
org.springframework.orm.hibernate3.support.HibernateDaoS 739J] M
"I"(yiKD
upport; 35}{dr
)sWC5\
import com.javaeye.common.util.PaginationSupport; FyZp,uD
E^uWlUb{
public abstract class AbstractManager extends 7M~w05tPh
+}IOTw"O`
HibernateDaoSupport { }yde9b?F
>heFdKq1
privateboolean cacheQueries = false; nwH'E
]#n,DU}V
privateString queryCacheRegion; nJ!`^X5I
C_>dJYM
publicvoid setCacheQueries(boolean t@KN+
C
W0vdU;?%
cacheQueries){ (E'f'g
this.cacheQueries = cacheQueries; Ne^md
} FX+;azE7
5v51:g>c
publicvoid setQueryCacheRegion(String ![ &
go
p&Usl.
queryCacheRegion){ NXQdy g,
this.queryCacheRegion = SiN22k+
yQkj4v{
queryCacheRegion; 8mM^wT
} 1BQB8i-,
q&.SB`
publicvoid save(finalObject entity){ lM1Y }
getHibernateTemplate().save(entity); ^4Ta0kDn
} D8u_Z<6IjI
J1,\Q<
publicvoid persist(finalObject entity){ 01md@4NQ
getHibernateTemplate().save(entity); ?n$;l-m[
} 39s%CcI`k
ifA{E}fRZP
publicvoid update(finalObject entity){ yFp8 >
getHibernateTemplate().update(entity); Gy*6I)l
} hhu!'(j
DL&\iR
publicvoid delete(finalObject entity){ 9v_B$F$_T
getHibernateTemplate().delete(entity); 0E9LZOw4T
} Mz}yf5{f
-5 -X[`cF
publicObject load(finalClass entity, S`yY<1[O
N
O|&nqq,>
finalSerializable id){ G.KZZ-=_4
return getHibernateTemplate().load HtWuZq;w
n:c)R8X]
(entity, id); a8K"Z-LlQ
} bAIo5lr
+" 4E:9P?
publicObject get(finalClass entity, GT|=Kx$;
f_}FYeg
finalSerializable id){ =Z
^=
return getHibernateTemplate().get QO;W}c:N
$<jI<vD+:
(entity, id); -3 }
} +we3BE.
p9*#{~
publicList findAll(finalClass entity){ jPG&Ypm1
return getHibernateTemplate().find("from p #:.,;
ps:|YR
" + entity.getName()); U0}]3a0
} 4%#C _pE9
:cv_G;?
publicList findByNamedQuery(finalString C^]y
iR-U
5;=,BWU
namedQuery){ I 2JE@?
return getHibernateTemplate ?(Dk{-:T'
RC5b'+E