Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 %Iv*u sXP
6Jd.Eg ~A7
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 hi^t zpy
18o5Gs;yx
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 >_SqM! ^v
fl o9iifZ
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 Kd;)E 9Ti
|6!L\/}M%
。 /s "Lsbe
|yVveJ
分页支持类: ev9ltl{
.a7!*I#g
java代码: !+T29QYK8
d'2q~
h4tAaPcS+
package com.javaeye.common.util; G }U'?p
D\k'Eez
import java.util.List; )GR4U8<>g
M&^Iun
publicclass PaginationSupport { MhZ\]CAs9
4Bk9d\z
publicfinalstaticint PAGESIZE = 30; }$Z0v`
Qgxpq{y
privateint pageSize = PAGESIZE; `w EAU7m:
U$7]*#@&
privateList items; sU0W)c;
a}[ 1*_G
privateint totalCount; J3c8WS{:
=_Ip0FfK!
privateint[] indexes = newint[0]; 9}jezLI/3
pFcCe
'd"
privateint startIndex = 0; n>W*y|UJ
fzjAP7 y
public PaginationSupport(List items, int Q|(G -
]?lUe5F
totalCount){ SYwB
#|
setPageSize(PAGESIZE); R?iC"s!
setTotalCount(totalCount); FgnPh%[u
setItems(items); AYGe`{
setStartIndex(0); %![3?|8~
} +{L=cWA"
U o[\1)
public PaginationSupport(List items, int ,*CPG$L
<g1=jG:7k
totalCount, int startIndex){ qu%}b>
setPageSize(PAGESIZE); >G}g=zy@
setTotalCount(totalCount); QE+HL8c^s
setItems(items); _*fOn@Vwo
setStartIndex(startIndex); c0QKx=
} |vtj0,[
Cq[<CPAS
public PaginationSupport(List items, int k\Z7Dg$\D
)8%m|v#W
totalCount, int pageSize, int startIndex){ `Ha<t. v(
setPageSize(pageSize); *AJYSa,z
setTotalCount(totalCount); {ep.So6
setItems(items); Kp>fOe'KW
setStartIndex(startIndex); gN.n_!
} eXi}-~o
tL]T_]z
publicList getItems(){ J*4T|#0
return items; `X%Qt~
} 3|PV.
%+@<T<>J<k
publicvoid setItems(List items){ 5Kl;(0B9
this.items = items; ''H;/&nDX
} )6{,y{5!
=@!s[
publicint getPageSize(){ 65l9dM2
return pageSize; MG vp6/Pd
} a+<{!+3v
oAgU rl;R
publicvoid setPageSize(int pageSize){ LAY~hF"
this.pageSize = pageSize; BHt9$$Z|
} v+C%t!dx
$0*D7P^8
publicint getTotalCount(){ UBw*}p
return totalCount; ZG(Pz9{K
} RG:_:%@%}
WHcw5_3#
publicvoid setTotalCount(int totalCount){ |?t}7V#[
if(totalCount > 0){ |!L0X@>
this.totalCount = totalCount; g\pLQH
int count = totalCount / ('+C $
Ge1"+:tbJ
pageSize; PAXm
if(totalCount % pageSize > 0) 6*:U1{Gl)
count++; X'p%K/-m
indexes = newint[count]; \: R Akf<
for(int i = 0; i < count; i++){ _8e0vi!~2
indexes = pageSize * XA\wZV
|{
oj[<{/,C9
i; lsU`~3nr
} |xrnLdng0R
}else{ NmTo/5s
this.totalCount = 0; 8;O /x
} \7G.anY
} 0+NGFX\p
|a=7P
publicint[] getIndexes(){ yC7lR#N8j0
return indexes; p21li}Iu
} $V;0z~&!'
(3&P8ZGNR
publicvoid setIndexes(int[] indexes){ q-qz-cR
this.indexes = indexes; akzKX}
} P>'29$1'
Lc0=5]D
publicint getStartIndex(){ bT`et*]
return startIndex; T3PwM2em_`
} WQsu}_g5y
"Iacs s0;
publicvoid setStartIndex(int startIndex){ \pXo~;E\
if(totalCount <= 0) EPU3Jban
this.startIndex = 0; T}Wse{
elseif(startIndex >= totalCount) Wm/0Pi
this.startIndex = indexes p5J!j I=
_7
^:1i~:.
[indexes.length - 1]; #lF 2qw
elseif(startIndex < 0) 0B"_St}3D
this.startIndex = 0; =z\/xzAwX
else{ oo|Nu+
this.startIndex = indexes Z61L;E
szp.\CMz
[startIndex / pageSize]; $?uLFD
} 7,Y+FZ
} .M0pb^M
G-'CjiMu
publicint getNextIndex(){ _po5j;"_O
int nextIndex = getStartIndex() + Rg3g:TV9c
\zhCGDm1_
pageSize; !{vZvy"
if(nextIndex >= totalCount) on
4
$n7
return getStartIndex(); py6O\` \
else ysFp$!9Ux
return nextIndex; Qe`Nb4xf
} G$2Pny<!
*vT Abk$
publicint getPreviousIndex(){ j|@8VxZ
int previousIndex = getStartIndex() - "g5MltH
H=9{|%iS
pageSize; bjq.nn<=
if(previousIndex < 0) ps*iE=D
return0; $F6GCM3Cx
else u]P9ip"Z
return previousIndex; %yK- Q,'O
} .2y @@g
o;>qsn8
} s\(@f4p
lDVgW}o@
v)nBp\fjxp
q[x|tO
抽象业务类 #
S0N`V
java代码: j{@li1W@
qAt#0
:wfN+g=
/** sTvw@o*
* Created on 2005-7-12 <&HHo>rl
*/ f]2;s#cu
package com.javaeye.common.business; Th4}$)yrkN
rj/nn)vv;
import java.io.Serializable; ()Qq7/
import java.util.List; zek>]l`!
C1OiM b(:
import org.hibernate.Criteria; 6 kD.
import org.hibernate.HibernateException; [buLo*C4:
import org.hibernate.Session; NKiWt
Z"
import org.hibernate.criterion.DetachedCriteria; 7_J0[C!G
import org.hibernate.criterion.Projections; sIRfC<
/P
import 34L1Gxf
xF*i+'2
org.springframework.orm.hibernate3.HibernateCallback; - x; xQ
import b`;Cm)@X!)
eKRE1DK
org.springframework.orm.hibernate3.support.HibernateDaoS m14'u GC
AmrVxn4
upport; v=DC3oh-
"YVr/u
import com.javaeye.common.util.PaginationSupport; bd2QQ1[1vh
GQ sE5Vb
public abstract class AbstractManager extends PoLk{{l3
Xm<|m#
HibernateDaoSupport { }taG/kE62
ei~f1$zc#h
privateboolean cacheQueries = false; 9zm2}6r4
8YQ7XB
privateString queryCacheRegion; DX ZZZ[#
,lVQ-qw5
publicvoid setCacheQueries(boolean @Thrizh
li0)<("/
cacheQueries){ H;#C NB<e
this.cacheQueries = cacheQueries; T/:6Z
} q``/7
_/YM@%d
publicvoid setQueryCacheRegion(String arvKJmD
U[z2{\
queryCacheRegion){ y[GqV_~?Y
this.queryCacheRegion = <`NtTG
55=YM'5]
queryCacheRegion; )_}xK={
} )5u#'5I>
\y+^r|IL
publicvoid save(finalObject entity){ t
;fJ`.
getHibernateTemplate().save(entity); cv. j
} EAz>`~
En4!-pWHQ
publicvoid persist(finalObject entity){ y2 R\SL,
getHibernateTemplate().save(entity); +W8kMuM!
} GGUwS
n*caP9B
publicvoid update(finalObject entity){ ]$Q@4=fb
getHibernateTemplate().update(entity); 'r1X6?dJ
} qCq?`0&#
L]l?_#*x
publicvoid delete(finalObject entity){ -h=wLYl@0i
getHibernateTemplate().delete(entity); Ox@$ }
} mRN[lj
EJNHZ<
publicObject load(finalClass entity, F2Gg_u@7M
cfy9wD
finalSerializable id){ t| B<F t^
return getHibernateTemplate().load m8INgzVTC
.=) *Qx+
(entity, id); M0hR]4T
} 65tsJ"a<
#A:^XAU1Z@
publicObject get(finalClass entity, =6N=5JePB
iz+,,UH
finalSerializable id){ OaY]}4tI$
return getHibernateTemplate().get =@nW;PUZ
&SPIu,
(entity, id); M&e=LV
} v7v>
SCjVzvG$yg
publicList findAll(finalClass entity){ J ayax]u7J
return getHibernateTemplate().find("from Y5*A,piq
#IeG/t(
" + entity.getName()); .!'rI7Kz'i
} DLO#_t^v.
|T-Ytuy8
publicList findByNamedQuery(finalString !Nbi&^k B
)=5*iWe
namedQuery){ 7w\!3pv
return getHibernateTemplate |7.X)h`
!Wy&+H*0
().findByNamedQuery(namedQuery);
-:wV3D
} 9QkssI
G$~hAZ
publicList findByNamedQuery(finalString query, 5oOs.(m|*C
6K >(n
finalObject parameter){ r%LG>c`^
return getHibernateTemplate Ey_mK\'
V3axwg_
().findByNamedQuery(query, parameter); r)<n)eXeD
} FH;)5GGnv
Eb8z`@p
publicList findByNamedQuery(finalString query, Ae<;b Of
z] |Y
finalObject[] parameters){ Ge24Lp;Y6
return getHibernateTemplate "eI">`!g
Y1BxRd?D
().findByNamedQuery(query, parameters); P[e#j
} v^ 1x}
-Q1~lN m:
publicList find(finalString query){ uW,rmd
return getHibernateTemplate().find H$&P=\8n
w aDJ
(query); <q|eG\01S
} M|>-q
CS"p3$7,
publicList find(finalString query, finalObject m h|HEkM
JZ-M<rcC
parameter){ y{nX 6
return getHibernateTemplate().find 92*Y( >
$U%N$_k?
(query, parameter); ?QzN\fY;
} %'dsb7n
5}_,rF?cX
public PaginationSupport findPageByCriteria '9 <APUyu
3<6P^p=I
(final DetachedCriteria detachedCriteria){ }iR!uhi#
return findPageByCriteria + L#):xr
~|e H8@o
(detachedCriteria, PaginationSupport.PAGESIZE, 0); Pu!%sG jD
} 1;+(HB
.PJ_1
public PaginationSupport findPageByCriteria N)$yBzN
h,'m*@Eg
(final DetachedCriteria detachedCriteria, finalint $h'>Zvf
[kZe6gYP&
startIndex){ s ,GGO3^
return findPageByCriteria ]b@:?DX8
%C*h/AW)'
(detachedCriteria, PaginationSupport.PAGESIZE, YZ+<+`Mz<
$e![^I]`
startIndex); c::Vh
} u|E9X[%
t8b,@J`R
public PaginationSupport findPageByCriteria 5nG$6Hw
i52:<<