Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造
e?G*q)l
[,5clR=F
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 4(JxZ49
.)Se-'
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 r _r$nl
n X
Qz
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 ej<z]{`05
Smk]G))o{
。 xiRTp:>
6x@-<{L
分页支持类: 1&YP}sg)
cf@#a@7m9
java代码: qRB7I:m-Wi
vfhip"1
Qb# S)[6s+
package com.javaeye.common.util; V!KtF
y&__2t^u
import java.util.List; "_)
==(M
vu`
publicclass PaginationSupport { ;T52aX
.: 7h=neEW
publicfinalstaticint PAGESIZE = 30; 7*XG]=z/
WaMn[/{
privateint pageSize = PAGESIZE; +N4h
Q"
9Zrn(D
privateList items; *8XGo
z|P& 8#txM
privateint totalCount; _k+Bj.L
*rEW@06^\
privateint[] indexes = newint[0]; 6-X7C9`C
N&>D/Z;"
privateint startIndex = 0; QW2% Gv:
\iVYhl
public PaginationSupport(List items, int 1<R
\V
w\t{'
totalCount){ &2\.6rb.
setPageSize(PAGESIZE); y6jTT%
setTotalCount(totalCount); %n}]$
d
setItems(items); M(3E
b;`
setStartIndex(0); 6
*8G e
} % 9WWBxS
U |4%ydG
public PaginationSupport(List items, int *gT
TI;:
n(o
Jb
totalCount, int startIndex){ 3 oWCQ
setPageSize(PAGESIZE); 7SqsVq`[~
setTotalCount(totalCount); xUrfH$$!`
setItems(items); ;8b f5
setStartIndex(startIndex); n6uobo-
} f:utw T
E_y h9lk
public PaginationSupport(List items, int &FanD
?y04g u6p
totalCount, int pageSize, int startIndex){ :!A@B.E
setPageSize(pageSize); z(%Zji@!N
setTotalCount(totalCount); W4YC5ZH{l
setItems(items); krl yEAK=
setStartIndex(startIndex); "1#,d#Q $
} 1%=,J'AH
i'EXylb
publicList getItems(){ 5g&'n
return items; a,tP.Xsl
} j/Kw-h ,5"
Kc{wv/6}T
publicvoid setItems(List items){ uuC/F_='B
this.items = items; {jq-dL
} p' gv5\u[w
<n`|zQ
publicint getPageSize(){ "M*\,IH
return pageSize; '/p5tw8
} l`u*,"$
eeX)JC0A
publicvoid setPageSize(int pageSize){ (p2a{v}fEz
this.pageSize = pageSize;
w\QpQ~OX
} [,e_2<
4i19HD_
publicint getTotalCount(){ DuFlN1Z
return totalCount; ~gAx
} }z*p2)v`
R`<E3J\*
publicvoid setTotalCount(int totalCount){ @F1pu3E
if(totalCount > 0){ bBQp:P?E
this.totalCount = totalCount; w5nRgdboy!
int count = totalCount / GS^4tmc
l-npz)EM
pageSize; }Ag2c; aaq
if(totalCount % pageSize > 0) lwB!ti
count++; s-DtkO
indexes = newint[count]; l;C_A;y\
for(int i = 0; i < count; i++){ BdYh:
indexes = pageSize * 4q~E\l|.5
&Y&zUfA
i; r9U1 O@c
} 9PBmBP~
}else{ 5u8Sxfm",
this.totalCount = 0; }qg!Um0
} Tld{b
} > w'6ZDA*X
n#R!`*[
publicint[] getIndexes(){ Ea
!j-Lb o
return indexes; St3~Y{aI|
} G@;aqe[dB
p[$I{F*a
publicvoid setIndexes(int[] indexes){ Z~R i%XG
this.indexes = indexes; O//e0?]W
} (*1A0+S90
cZ(XY}
publicint getStartIndex(){ "&ks83
return startIndex; g=%&p?1@E
} yqU++;6
^Ve^}|qPc
publicvoid setStartIndex(int startIndex){ ~Mx
fud
if(totalCount <= 0) p)ONw"sb
this.startIndex = 0; ~DD/\V
elseif(startIndex >= totalCount) ,yF)7fN
this.startIndex = indexes pqe
tYu
4M]8po/;
[indexes.length - 1]; )<|T Ep4r-
elseif(startIndex < 0) Q&J,"Vxw
this.startIndex = 0; ^/+sl-6/F
else{ g[$B90
this.startIndex = indexes x<l1s
}B5I#Af7
[startIndex / pageSize]; PX'LN
} Dz{e@+>M
} a !IH-XJ2
RD4)NN6y5}
publicint getNextIndex(){ :U9R
1^}A
int nextIndex = getStartIndex() + yV8).4
_pS%tPw
pageSize; 0b4OJ[
if(nextIndex >= totalCount) sHF vzE%
return getStartIndex(); Hj!)S&y,$
else VtO+=mZV
return nextIndex; X_qXH5^%
} {G}HZv%S U
,uv$oP-
publicint getPreviousIndex(){ Yx"z&J9p
int previousIndex = getStartIndex() - --9mTqx
=%3nKSg
pageSize; _=8+_OEk
if(previousIndex < 0) X=3@M_Jzo
return0; #^9;<@M
else cC4T3]4l'
return previousIndex; Zx_m?C_2_
} coWB KWF
ff#-USK^R
} cabN<a
l
^6+x0[13
6"GpE5'*
xYT.J 6
抽象业务类 &Yg/08*
java代码: %gaKnT(|r
AV p[gr
wLtTC4D
/** D}T,z
* Created on 2005-7-12 "" U_|JH-
*/ BGX@n#:
package com.javaeye.common.business; }]I?vyQ#V
$<v_Vm?6d
import java.io.Serializable; K288&D|1WU
import java.util.List; :~(im_r
!A!\S/x4
import org.hibernate.Criteria; K>[H@|k\k
import org.hibernate.HibernateException; 5)UmA8"zVB
import org.hibernate.Session; CC\z_C*P-p
import org.hibernate.criterion.DetachedCriteria; K\b O[J
import org.hibernate.criterion.Projections; +HX'A C
import i7rq;t<
9QMn%8=j
org.springframework.orm.hibernate3.HibernateCallback; 2An`{')
import Bt,Xe~$z-
ju]]|
org.springframework.orm.hibernate3.support.HibernateDaoS &wN
2l-
#E9['Jn Z
upport; 'l|_$3
[Ni4[\
import com.javaeye.common.util.PaginationSupport; Y9;Mey*oW
?_aR-[XRg
public abstract class AbstractManager extends spJ(1F{|V
I*}#nY0+
HibernateDaoSupport { C t)MvZ
sh ;uKzQ
privateboolean cacheQueries = false; 3ZlI$r(
&>e DCs
privateString queryCacheRegion; iI*7WO[W
8(>.^667
publicvoid setCacheQueries(boolean c~xo@[NaS
!9,
pX
cacheQueries){ -`OR6jd
this.cacheQueries = cacheQueries; 91H0mP>ki
} l,.?-|Poa
h
'[vB^
publicvoid setQueryCacheRegion(String ]ufW61W6Ci
bSf(DSqx
queryCacheRegion){ %v[Kk-d
this.queryCacheRegion = 1v&Fo2ML
?Z>.G{Wm@
queryCacheRegion; "!tw
,Gp
} 6[.Mx}h6
A+I&.\QAR
publicvoid save(finalObject entity){ J\3} il
N
getHibernateTemplate().save(entity); #[y<h3f]
} N}fUBX4k
N-`;\
publicvoid persist(finalObject entity){ hXm}d\
getHibernateTemplate().save(entity); 8%<`$`FyU
} %i8>w:@NW
IY6_JGe_w
publicvoid update(finalObject entity){ abeSkWUL(
getHibernateTemplate().update(entity); R*Z]
} -l H>8+
mE`qvavP|/
publicvoid delete(finalObject entity){ >&QH{!(
getHibernateTemplate().delete(entity); Rt^<xXX$
} xn@0pL3B~
*ldMr{s<R
publicObject load(finalClass entity, U5!f++
q9Sz7_K
finalSerializable id){ -Zg @D(pF
return getHibernateTemplate().load Reu{
*Ca)RgM
(entity, id); 9K':Fn2,
} lt6;*z[
j yRSEk$
publicObject get(finalClass entity, =nx:GT3&[
-'[(Uzj
finalSerializable id){ [!@oRK=~
return getHibernateTemplate().get W[E3P,XS
3g[j%`k
(entity, id); t*d >eK`:N
} GrR0RwnH)?
tx5T^K7[
publicList findAll(finalClass entity){ ie@`S&.8 T
return getHibernateTemplate().find("from x
XM!E
8
e j%;%`C-
" + entity.getName()); $[iT~B$
} ]A72)1
<;cE/W}}
publicList findByNamedQuery(finalString 8A^jD(|
@f{_=~+
namedQuery){ 8ts+'65|F
return getHibernateTemplate vA"niO
c5E#QV0&v~
().findByNamedQuery(namedQuery); [OZ=iz.
} ]1d,O^S
^8NLe9~p3?
publicList findByNamedQuery(finalString query, /J.\p/%\
6lmiMU&