Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 b&!7(Q[ sT
%fpcH
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 ~J6c1jG
;%#@vXH[Oo
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 Ss&R!w9p
jv]:`$}G\
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 '+|{4-V
4
|N&Y
。 $N=A, S
H0s,tTK8
分页支持类: g!O(@Sqp1
{q"l|Oe
java代码: E#T-2^nD
S3Tww]q
AtA}OY]D/
package com.javaeye.common.util; CBTa9|57
q7wd9 6G:
import java.util.List; xU^Flw,4
uM0z%z5b
publicclass PaginationSupport { F[c;iM(^
g/4.^c
publicfinalstaticint PAGESIZE = 30; Mnaoh:z
X.g")Bt7
privateint pageSize = PAGESIZE; 0QDm3V0n
"@E1^
privateList items; ZSMOq4Y 9
ue$\i =jw
privateint totalCount; .Lp0_R@
0%+T U4Xx
privateint[] indexes = newint[0]; Xt /muV
<vA^%D<\~
privateint startIndex = 0; Y=4 ,d4uu
fdzD6KZI
public PaginationSupport(List items, int VzMoWD;
t}`|\*a
totalCount){ ]`y4n=L.
setPageSize(PAGESIZE); Kig.hHj@
setTotalCount(totalCount); HlY4%M5q/
setItems(items); rsvZi1N4w$
setStartIndex(0); o_EXbS]C
} }
CJQC
q0w5ADd
public PaginationSupport(List items, int s%J|r{F6
abCcZ<=|b
totalCount, int startIndex){ ?4_^}B9
setPageSize(PAGESIZE); |jaUVE_2[
setTotalCount(totalCount); l<{]%=Qg
setItems(items); ^C@uP9g
setStartIndex(startIndex); L$@^EENS
} HH2*12e
>wM%|j'
public PaginationSupport(List items, int W9Bl'e
oyJ/Oe
{
totalCount, int pageSize, int startIndex){ Cfb/f]*M
setPageSize(pageSize); t[F tIj6
setTotalCount(totalCount); vBQ5-00YY=
setItems(items); 2,;+)
setStartIndex(startIndex); EH] 5ZZ[Z
} l0u6nGkh
MlsF?"H p
publicList getItems(){ 'sY>(D*CQ
return items; ^,b*.6t
} T8ZBQ;o
JHc|.2Oe
publicvoid setItems(List items){ @k,u xe-
this.items = items; )-[ 2vhXz
} ]ODC+q1
fh
)QX
publicint getPageSize(){ IJo`O
return pageSize; ?a~=CC@
} }vxb, [#
hX 9.%-@sR
publicvoid setPageSize(int pageSize){ 0: h;ots'
this.pageSize = pageSize; HPCgv?E3
} 7J,W#Ql)5
}!& w<wR
publicint getTotalCount(){ /^#k/z
return totalCount; E[t\LTt*n
} i,S%:0c7)
|VlAt#E
publicvoid setTotalCount(int totalCount){ &.+[~2
if(totalCount > 0){ RV^2[Gdi
this.totalCount = totalCount; 4G@vO{$
int count = totalCount / zY\v|l<T
,ye>D='
pageSize; %g0"Kj5
if(totalCount % pageSize > 0) HHCsWe-
count++; Fx0K.Q2Y0
indexes = newint[count]; eP'e_E
for(int i = 0; i < count; i++){ p2!x8`IB*
indexes = pageSize * /pFg<
\"_;rJ{!aE
i; 5cxA,T
} } ~=53$+
}else{ \Q*3/_}G
this.totalCount = 0; f&ZxG,]Hi
} >('L2]4\v
} X5qU>'?`
wv
,F>5P
publicint[] getIndexes(){ AT+|}B!
return indexes; eOD;@4lR
} }9:\#
QXq~e
publicvoid setIndexes(int[] indexes){ 8:$kFy\A'
this.indexes = indexes; Q2^}NQO=
} E`XUK,b
OWB^24Z&3
publicint getStartIndex(){ *0l^/jqn:
return startIndex; ~{Tus.jk
} h}z^NX
20zIO.&o
publicvoid setStartIndex(int startIndex){ "KW\:uc /
if(totalCount <= 0) z.]t_`KuF9
this.startIndex = 0; HG=!#-$9
elseif(startIndex >= totalCount) VV?+q)
this.startIndex = indexes ;{q7rsE
\0(QO8.
[indexes.length - 1]; mV`Z]-$$i
elseif(startIndex < 0) tV*g1)'zX
this.startIndex = 0; 6N~~:Gt
else{ H=Yl
@
this.startIndex = indexes M)I&^mm39
.4_EaQ;jX
[startIndex / pageSize]; k2<VUeW5
} K^A\S
} n|SsV
4eBM/i
publicint getNextIndex(){ ub+>i
int nextIndex = getStartIndex() + 0RYh4'=F
SG8|xoL
pageSize; ~e~4S~{
if(nextIndex >= totalCount) D>?%p"e
return getStartIndex(); lp!@uoN^T
else 7,j}]
return nextIndex; 1reJ7b0
} G:c)e,pD
+S^Uw'L$=T
publicint getPreviousIndex(){ a`q">T%q
int previousIndex = getStartIndex() - C%}FVO\c
2Ev~[Hb.
pageSize; lY.FmF}k
if(previousIndex < 0) mZ7.#R*}
return0; lmj73OB3
else d@7
]=P:
return previousIndex; WkXa%OZ
} *vCJTz
E:&=A 4%
} .FqbX5\p,
iW-w?!>|m
2[r#y1ro
k
U*\Fa*E
抽象业务类 1W$ @ V!
java代码: 8!b#ez
8g(%6 ET
~BrERUk
/** c/x ^I{b*
* Created on 2005-7-12 t$]lK6
*/ iKLN !QR
package com.javaeye.common.business; Wl;F]_|*(
(t>BO`,
import java.io.Serializable; jNaK]
import java.util.List; $MfHA~^
S,n*1&ogj
import org.hibernate.Criteria; G9N6iKP!
import org.hibernate.HibernateException; _?Rprmjx}
import org.hibernate.Session; 5``/exG>
import org.hibernate.criterion.DetachedCriteria; ,Tvk&<!0
import org.hibernate.criterion.Projections; Dx 4?6
import DN;g2R`f
f lR6^6E
org.springframework.orm.hibernate3.HibernateCallback; <^
@1wg
import la</IpC
,wlFn
org.springframework.orm.hibernate3.support.HibernateDaoS n0>#?ek12
9y>dDNM\<
upport; )f*&}SV
uPr@xff
import com.javaeye.common.util.PaginationSupport; ;} Ty b
Z8z.Xn
public abstract class AbstractManager extends Wf-i)oc4I
P`@d8%*;
HibernateDaoSupport { ;&s`g
J5*krH2i
privateboolean cacheQueries = false; pzg|?U
"n}J6
privateString queryCacheRegion; '.c[7zL
Ldf<
publicvoid setCacheQueries(boolean :+bQPzL
,gUSW
cacheQueries){ &UEr4RK;I
this.cacheQueries = cacheQueries; SBzJQt@Hs
} W[AX?
Kxn/@@z>u
publicvoid setQueryCacheRegion(String |bQKymS
U rm&4&y
queryCacheRegion){ i'H{cN6
this.queryCacheRegion = P5P:_hr
z{]$WVs:^
queryCacheRegion; CJ8X Ky
} =$X5O&E3'
lr=? &>MXj
publicvoid save(finalObject entity){ $k,Z)2
getHibernateTemplate().save(entity); Ckj2$c~
} g1@zk$
t:eZ`6o$T\
publicvoid persist(finalObject entity){ I+rHb<
P%
getHibernateTemplate().save(entity); 5@%$M$E
} MT[V1I{LV
IGV @tI
publicvoid update(finalObject entity){ p^3]Q
getHibernateTemplate().update(entity); ['~3"lK^O
} Y4_/G4C
F@1~aeX-
publicvoid delete(finalObject entity){ .__XOd}K
getHibernateTemplate().delete(entity); @i'RIL}
} Q})x4
Ynl^Z
publicObject load(finalClass entity, A5S9F8Q/]
1p[C5j3
finalSerializable id){ 64%P}On
return getHibernateTemplate().load ` .|JTm[
[a:yKJ[
(entity, id); ,|D_? D)U
} 5Ev9u),D+v
] JVs/
publicObject get(finalClass entity, 4/;hA
z
jVC`38|
finalSerializable id){ /BjM&v(5/
return getHibernateTemplate().get 12`q9Io"
!8 lG"l|,l
(entity, id); cfBq/2I
}
AyKvh
V7[6jWgH
publicList findAll(finalClass entity){ E
(
return getHibernateTemplate().find("from X;lL$
V(I!HT5.W
" + entity.getName()); x$Y44v'>
} t~U:Ea[gd
sD H^l)4h
publicList findByNamedQuery(finalString ROlef;/A
O-J;iX }
namedQuery){ b`){f\#t
return getHibernateTemplate K1>X%f^
ajC'C!"^Ty
().findByNamedQuery(namedQuery); D99g}
} R4"*<%1
@}eEV[Lli
publicList findByNamedQuery(finalString query, +;^UxW
`Fnl<C<
finalObject parameter){ t2skg
return getHibernateTemplate !~Gx@Ro
I@Pp[AyG
().findByNamedQuery(query, parameter); -sO[,
} K&Ner(/X`6
Rah"La
publicList findByNamedQuery(finalString query, @ x_.
3#N'nhUzA
finalObject[] parameters){ '#RzX8|v<
return getHibernateTemplate K2$ fKju
kW#,o 9f\
().findByNamedQuery(query, parameters); XtY!fo*
} 1N6.r:wg)%
+Ysm6n '
publicList find(finalString query){ 5pSo`)
return getHibernateTemplate().find -AnQZy
wNo2$>*
(query); Q6blX6DWU
} (3cJ8o>&
hgIqr^N9
publicList find(finalString query, finalObject Zk,`
Iq
kt`_n+G
parameter){ BIGln`;,f
return getHibernateTemplate().find EQ
'L"
)4:K@
(query, parameter); qTSyy=
} ,;;7+|`
ha[c<e]uo[
public PaginationSupport findPageByCriteria jf&B5>-x
e_RLKFv7
(final DetachedCriteria detachedCriteria){ DrI"YX
return findPageByCriteria TL&