Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 3yX^93
uZL,+Ce|
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 7hQXGY,q
InBnU`(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 sG7G$G*ta!
WWhAm{m
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 fd!bs*\X
o%;R4 s,
。 s1.EE|h,5
`$*I%oT;
分页支持类: [3lAKI
> r1cW7
java代码: t1}R#NB
"
R!,5HQF;
Q"7vzri
package com.javaeye.common.util; Y&!-VW
MKPxF@N(
import java.util.List; |L[/]@|
{k*rD!tT
publicclass PaginationSupport { ^ >JAl<k
8JYU1Ew
publicfinalstaticint PAGESIZE = 30; :d}I`)&
UCV1 {
privateint pageSize = PAGESIZE; !0!m |^c5
GVR/p
privateList items; 3V=wW{;x
]s_,;PG U
privateint totalCount; iga.B
bca4'`3\|
privateint[] indexes = newint[0]; $$F iCMI
;O8'vp
privateint startIndex = 0; yAD-sy +/
\ GYrPf$
public PaginationSupport(List items, int >n$V1U&/
VJbsM1y M
totalCount){ NH9"89]E
setPageSize(PAGESIZE); 3MX&%_wUhB
setTotalCount(totalCount); n x4:n@J
setItems(items); U/}YpLgdD
setStartIndex(0); 0OCmyy
} PtsQV!
=D;n#n 7
public PaginationSupport(List items, int +*uaB
9UDanj P
totalCount, int startIndex){ \.ukZqB3
0
setPageSize(PAGESIZE); 8k +^jj
setTotalCount(totalCount); |ht:_l
8
setItems(items); 7md,!|m
setStartIndex(startIndex); M/?eDW/
} &~=FXe0S
+xNV1bM
public PaginationSupport(List items, int O]_a$U*6
#1fL2nlP*E
totalCount, int pageSize, int startIndex){ sU Er?TZ
setPageSize(pageSize); &_cH9zw@
setTotalCount(totalCount); HOt,G
_{
setItems(items); UOIB}ut
V
setStartIndex(startIndex); 56w uk
[)
} qofD@\-
QNbV=*F?
publicList getItems(){ Ls<^z@I
return items; \!LIqqX
} aAKwC01?
6|uv+$
publicvoid setItems(List items){ 6}l[%8
this.items = items; +~(SeTY
} KE[!{O^(a
f8e :J#jbS
publicint getPageSize(){ hk+8s\%-
return pageSize; (^pIB~.z
} _=Z?5{7S>
`6y=ky.,
publicvoid setPageSize(int pageSize){ [[$dPa9
this.pageSize = pageSize; eWWqK9B.-
} ] M`%@ps
qP{Fwn
publicint getTotalCount(){ 7+9o<j@@o
return totalCount; HK
NT. a
} gFpub_
"?%2`*\
publicvoid setTotalCount(int totalCount){ xO[V>Ud
if(totalCount > 0){ T<oDLJA\
this.totalCount = totalCount; <*Nd%Ca
int count = totalCount / R_^0Un([
+Jm~Um!
pageSize; Z_U4Yy'NNw
if(totalCount % pageSize > 0) +Tt.5>N
count++; mq}V @H5
indexes = newint[count]; n
g%~mt
for(int i = 0; i < count; i++){ ui
RO,B}z
indexes = pageSize * .8wf {y
ZJe^MnE (G
i; `=V p 0tPI
} Gg e X
}else{ z~"Q_gme
this.totalCount = 0; 5G2G<[p5oQ
} j*\oK@
} 40%fOu,u`
qxB|*P`
publicint[] getIndexes(){ gLm,;'h%u
return indexes; x8w l
} ?;VsA>PV
+=:_a$98
publicvoid setIndexes(int[] indexes){ nz|6CP
this.indexes = indexes; e@Mg9VwDc
} Yt[LIn-v:
4#qZ`H,Ur)
publicint getStartIndex(){ 1etT."
return startIndex; 9(3]t}J5
d
} ZIN1y;dJ
,eGguNA9
publicvoid setStartIndex(int startIndex){ GKc?
if(totalCount <= 0) <?nz>vz
this.startIndex = 0; kXV;J$1
elseif(startIndex >= totalCount) $Qz<:?D
this.startIndex = indexes |LW5dtQ
H#i,Ve'
[indexes.length - 1]; C7O8B;
elseif(startIndex < 0) V0NLwl
O
this.startIndex = 0; ~x7CI
else{ ku4Gc6f#gG
this.startIndex = indexes 5vFM0
+BeA4d8b
[startIndex / pageSize]; DIABR%0
} &gJ1*"$9
} B(WmJ6e
Wv|CJN;4
publicint getNextIndex(){ LC4VlfU
int nextIndex = getStartIndex() + r?itd)WC<X
o}DRp4;Ka
pageSize; Iprt
ZqiL
if(nextIndex >= totalCount) qfG:vTm
return getStartIndex(); Nw9@E R
else | }L=e.
return nextIndex; L3w.<h
} kebk f,`p
W[I$([
publicint getPreviousIndex(){ i=L 86Ks
int previousIndex = getStartIndex() - p5jR;nOZ%l
!E&l=*lM.
pageSize; F?$Vx)HI
if(previousIndex < 0) vf zC2
return0; j,Mbl"P
else >?1GJ5]\s
return previousIndex; udT0`6l;
} fF(AvMsO
(/2rj[F&
} t{>#)5Pqv
ber&!9
0$ON`Vsu|
DXG`% <ZMn
抽象业务类 X~UL$S;
java代码: pV(k6h
,ss"s3
c(uDkX
/** wK0x\V6dJ
* Created on 2005-7-12 (kVY\!UAt
*/ ]isq}Qv~
package com.javaeye.common.business; >|, <9z`D
P4HoKoj2`
import java.io.Serializable; 7m
ou
import java.util.List; <jh7G
-.r"|\1X
import org.hibernate.Criteria; TFG?
EO
import org.hibernate.HibernateException; :8(jhs
import org.hibernate.Session; 8!0fT}
import org.hibernate.criterion.DetachedCriteria; u(FOSmNkN
import org.hibernate.criterion.Projections;
&a4FGzR#
import `-%dHvB^R
Cu5_OJ
org.springframework.orm.hibernate3.HibernateCallback; cpl Ny?UIC
import Ux1j +}y
6/#+#T
org.springframework.orm.hibernate3.support.HibernateDaoS sZ~03QvkT
K>vl o/#!
upport; ^mjU3q{;
@Co6$<
import com.javaeye.common.util.PaginationSupport; $3B%4#s
\#JXch
public abstract class AbstractManager extends %f'=9pit
gxmo 1
HibernateDaoSupport { _p0gXb1m`
DLP@?]BBOA
privateboolean cacheQueries = false; 0ETT@/)]z
CVvl &on
privateString queryCacheRegion; o2B|r`R
S !#5
publicvoid setCacheQueries(boolean 4i.&geXA.
@54$IhhT~
cacheQueries){ x&^Xgi?
this.cacheQueries = cacheQueries; za}Kd^KeB
} V)Oot|
Y-Q)sv
publicvoid setQueryCacheRegion(String (&NLLrsio
k~so+k&=b
queryCacheRegion){ H>D sAHS
this.queryCacheRegion = Y@:l!4DI
_f8H%Kgk;
queryCacheRegion; 5=8v\q?)c
} t\LE\[XM>
50dN~(;p
publicvoid save(finalObject entity){ IP$eJL[&D"
getHibernateTemplate().save(entity); 5L<A7^j
} Xp|4 WM
ob8}v*s
publicvoid persist(finalObject entity){ b:'8_jL
getHibernateTemplate().save(entity); (1q(6!
} ftcLP
Ip`1Wv_
publicvoid update(finalObject entity){ %]Nm'"Y`U
getHibernateTemplate().update(entity); n:B){'S
} jbq x7x
<mki@{ ;|
publicvoid delete(finalObject entity){ @{{L1[~:0
getHibernateTemplate().delete(entity); WV'u}-v^
} :Cezk D&
Z2@e~&L
publicObject load(finalClass entity, fd #QCs
xjF>AAM_Px
finalSerializable id){ ~:k
r;n2
return getHibernateTemplate().load 8RuW[T?
TghT{h@
(entity, id); <$hv{a
} x^c,cV+*
c%O97J.5b
publicObject get(finalClass entity, }"nm3\Df
!SE
finalSerializable id){ `n-/~7
return getHibernateTemplate().get ?7TmAll<.s
cAGM|%
(entity, id); S&-F(#CF^
} GIkeZV{4}
$<XQv $YS
publicList findAll(finalClass entity){ KztQT9kY
return getHibernateTemplate().find("from Sh5)36
h5T~dGRlR
" + entity.getName()); =jh^mD&'
} Mv/ SU">F
sr[[xzL
publicList findByNamedQuery(finalString ?D7zty+}^
8+7*> FD)1
namedQuery){ RTvOaZ
return getHibernateTemplate (e~9T MY
|OAiHSW"V
().findByNamedQuery(namedQuery); BMQ4i&kF|
} ~N}Zr$D
6Ad UlPM
publicList findByNamedQuery(finalString query, x5xMr.vm
Pzd!"Gl9
finalObject parameter){ rNicg]:\x
return getHibernateTemplate ">_|!B&wb^
^K: :g)
().findByNamedQuery(query, parameter); ^\ln8!;
} ^8bc<c:P
YahW%mv`d
publicList findByNamedQuery(finalString query, T`j{2
etX(~"gG_
finalObject[] parameters){
LjEMs\P\
return getHibernateTemplate k >.U !
6Y6t.j0vN.
().findByNamedQuery(query, parameters); w;(=wN\
} q&3(yhx
_*g.U=u
publicList find(finalString query){ Z8/.I
return getHibernateTemplate().find ^V9|uHOJoq
4_CL1g
(query); =aQlT*n%3
} DWx;cP8[
6&6dd_K(
publicList find(finalString query, finalObject (4RtoYWW
S76MY&Vx23
parameter){ -qvMMit%7
return getHibernateTemplate().find dT&u}o3X
q^6#.}
(query, parameter); N}[!QE
} T*Ge67
4JXvP1`
public PaginationSupport findPageByCriteria -G? IXgG
P0_Ymn=&