Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 fBHkLRFH
sN6 0o 7.
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 $
/}: P
(eCF>Wh^m
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 Qw3a"k-
,[Dh2fPM,
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 S4#A#a2J
E}xz7u
。 cmwzKu%
,:0Q1~8
分页支持类: [z
W_%O kP
XR{5]lKt_
java代码: Sf+(1_^`t
hEyX~f
C ffTv
package com.javaeye.common.util; ;FV~q{
EpFIKV!
import java.util.List; XD_P\z
wQF&GGYR
publicclass PaginationSupport { aX>4Tw
"i!2=A8k
publicfinalstaticint PAGESIZE = 30; c7FfI"7HR
t-v^-#
privateint pageSize = PAGESIZE; a-z23$3
?c|`R1D
privateList items; }vXA`)Ns
9pVf2|5hj
privateint totalCount; {u(}ED#p
"ay,Lr
privateint[] indexes = newint[0]; zxk??0]/
DuTlYXM2^
privateint startIndex = 0; 902!M65[rG
TS\A`{^T
public PaginationSupport(List items, int 9 NGeh*`
;[WSf{k
totalCount){ ~>Hnf_pZO
setPageSize(PAGESIZE); ^Ff~j&L@{
setTotalCount(totalCount); Ux%\Y.PPI
setItems(items); Xa? 6#
setStartIndex(0); "6I-]:K-
} P-E'cb%ub
h-?q6O/|
public PaginationSupport(List items, int `&|l;zsS
(/9.+V_
totalCount, int startIndex){ aIn)']
setPageSize(PAGESIZE); +eV4g2w)
setTotalCount(totalCount); jza}-=&+e
setItems(items); }\`-G+i{W
setStartIndex(startIndex); Z3X&<Y5
} H}jK3;8E
1A`?y&
Ll
public PaginationSupport(List items, int 6]@|7|N>X
i-i}`oN
totalCount, int pageSize, int startIndex){ MrKU,-
setPageSize(pageSize); \Age9iz&
setTotalCount(totalCount); :o.x=c B
setItems(items); V<~_OF
setStartIndex(startIndex); B>p0FQ.
} ^H\-3/si*
QC\,
publicList getItems(){ OIXAjU*N
return items; RAv RNd
} V:0uy>
JEm?26n X
publicvoid setItems(List items){ '1kj:Np
this.items = items; :N+#4rtgUY
} 5KC\1pei
e~>p.l
publicint getPageSize(){ | `)V^e_
return pageSize; ,#'o)O#
} xnhDW7m
VtzyB
publicvoid setPageSize(int pageSize){ .qqb>7|q
this.pageSize = pageSize; \ ]kb&Qw
} Ye\*b?6
{g!exbVf
publicint getTotalCount(){ `:bvuc(
return totalCount; ~ ];6hxv
} >DL-Q\U
R>e3@DQ~
publicvoid setTotalCount(int totalCount){ >arO$|W
if(totalCount > 0){ .Kh(F6
s
this.totalCount = totalCount; ok\/5oz
int count = totalCount / ?;.1fJU>
{>UMw>T[
pageSize; '^-4{Y^2E
if(totalCount % pageSize > 0) -u3SsU)_%N
count++; cDQw`ORP*g
indexes = newint[count]; G0 nH Z6
for(int i = 0; i < count; i++){ yqVaA 'w5
indexes = pageSize * *OGXu07 !
Gwrx)Mq
i; ;@7#w
} p^zEfLTU
}else{ %<ptkZK#
this.totalCount = 0; ^7s6J{<
} Y;> p)'z
} g]@R'2:1
Cs1%g
publicint[] getIndexes(){ ko+M,kjwR
return indexes; a`@<Z sR
} jB/q1vFO
X_tW#`
publicvoid setIndexes(int[] indexes){ o+)LcoPu
this.indexes = indexes; kq1M<lk
} |q!2i
N5w]2xz!
publicint getStartIndex(){ )q]j?Z.
return startIndex; jKCqH$
} G|PIH#
J,^pt Ql
publicvoid setStartIndex(int startIndex){ Dho^^<`c+
if(totalCount <= 0) P B6/<n9#
this.startIndex = 0; H:{(CY?t
elseif(startIndex >= totalCount) /P8eI3R
this.startIndex = indexes i:Z.;z$1
QhE("}1
[indexes.length - 1]; ]N(zom_0d
elseif(startIndex < 0) Dpp52UnTE
this.startIndex = 0; T`'3Cp$q
else{ d$?n6|4
this.startIndex = indexes *l?%
o{
_"w!KNX>(~
[startIndex / pageSize]; ++{+
#s6
} T\e)Czz2-
} WfjUJw5x"s
_ KkVI7a
publicint getNextIndex(){ x4m_(CtK
int nextIndex = getStartIndex() + :J4C'N
"w|k\1D
pageSize; Ppb2"I k
if(nextIndex >= totalCount) seD+~Y\z
return getStartIndex(); xX4^nem\G
else z`r4edk3
return nextIndex; *}iT6OJ
} Wn,g!rB^@
o2e h)rtB
publicint getPreviousIndex(){ Ko]h r
int previousIndex = getStartIndex() - tv=FFfQ
U5ud?z()OA
pageSize; {}_Oo%IVGK
if(previousIndex < 0) n,Mw#
r?y
return0; @%@^5
else 5$"[gdt)T
return previousIndex; {8bY7NH|
} Bzy=@]`
HG3>RcB
} qP^0($
by
y1MgQd
sImxa`kb
_467~5JkU
抽象业务类 A[$wxdc
java代码: \=G
Xe.}4d
~z1KD)^
U/&qV"Ih
/** Boj{+rE0
* Created on 2005-7-12 owY_cDzrH
*/ \7tvNa,C
package com.javaeye.common.business; 0!'M#'m
7/OOq=z
import java.io.Serializable; o(SJuZC/U
import java.util.List; Z-p^3t'{
&lfF!
import org.hibernate.Criteria; Pymh^i
import org.hibernate.HibernateException; k#r7&Y
import org.hibernate.Session; Y)5uK:)^
import org.hibernate.criterion.DetachedCriteria; rnBeL _8 C
import org.hibernate.criterion.Projections; 3^-)gK
import /G{3p&9
{)[g
org.springframework.orm.hibernate3.HibernateCallback; Umwg
iw
import ; o@`l$O
[c!vsh]^
org.springframework.orm.hibernate3.support.HibernateDaoS 2u;fT{(
YIk6:W{
upport; jeBj
@k #y-/~?
import com.javaeye.common.util.PaginationSupport; CY).I`aJ
r`g;k&"a
public abstract class AbstractManager extends gGdYh.K&e5
Z!i'Tbfn
HibernateDaoSupport { `M<G8ob
yhn
$4;m
privateboolean cacheQueries = false; C`_D{r
:@ 8.t,|
privateString queryCacheRegion; ! tPK"k
,v5>sL
publicvoid setCacheQueries(boolean Cwa0!y5%
+~{nU'
cacheQueries){ 0m!ZJH e
this.cacheQueries = cacheQueries; dZYJ(7%
} nMoF;AdKm
Oc+L^}elJ
publicvoid setQueryCacheRegion(String U"kK]Stk<
1'pQ,
queryCacheRegion){ KQZ RzX>0
this.queryCacheRegion = (V?`W7
%t|2GIu
queryCacheRegion; zw9ULQ$#
} 1;[
<||K
'0M0F'R
publicvoid save(finalObject entity){ juYt =
getHibernateTemplate().save(entity); v=WDs#"
} M_ cb(=ey
g#3x)97Z
publicvoid persist(finalObject entity){ |wn LxI
getHibernateTemplate().save(entity); os ud
} i1&noRGl
e/D\7Pf
publicvoid update(finalObject entity){ ,ZW.P`
getHibernateTemplate().update(entity); a#GqJ?nY
} (xJBN?NRO
"MP{z~Mmj
publicvoid delete(finalObject entity){ !m5\w>
getHibernateTemplate().delete(entity); `CouP-g.
} .z7f_KX^
pnb$lpxt
publicObject load(finalClass entity, FsZEB/c
F qyJ*W\1
finalSerializable id){ dsoRPX']=
return getHibernateTemplate().load F+-MafN7Y
2p.+C35c=j
(entity, id); ,qh
} [~JN n
}slEkpk?]
publicObject get(finalClass entity, '~=xP
ATewdq[C
finalSerializable id){ m{Xf_rQ
w
return getHibernateTemplate().get T js{
)r9
d-&dA_?
(entity, id); o%Q'<0d
} $}o,7xAn
yG_.|%e
publicList findAll(finalClass entity){ ?&^l8gE
return getHibernateTemplate().find("from >%A=b}VS
Y{{,62D
" + entity.getName()); Du4?n8 o
} *Y>'v%
ViONG]F
publicList findByNamedQuery(finalString ;yoq/
kQcQi}e
namedQuery){ |EU08b]P29
return getHibernateTemplate wC@U/?
9uo\&,,
().findByNamedQuery(namedQuery); 7En~~J3
} ]qQB+]WN
Fd0FG A&L
publicList findByNamedQuery(finalString query, A[Xw |9
!LESRh?
finalObject parameter){ cv&hT.1
return getHibernateTemplate z`6KX93
"K]4j]yU
().findByNamedQuery(query, parameter); @}}1xP4Sr
} aMD?^
$(hZw
publicList findByNamedQuery(finalString query, ld0WZj
}Q*ec/^{f
finalObject[] parameters){ sbb{VV`I
return getHibernateTemplate FpYoCyD}
LDNUywj@w
().findByNamedQuery(query, parameters); zy5bDL -
} }0*7bb
7k3\_BHyb\
publicList find(finalString query){ ";%1sK
return getHibernateTemplate().find N* QI>kzU
R'_[RHFC
(query); }zLE*b,
} z}|'&O*.F
d@~)Wlje
publicList find(finalString query, finalObject #-8/|_*
+%^xz
1m
parameter){ EkPSG&6RZ
return getHibernateTemplate().find Xp@OIn
Yi,um-%
(query, parameter); }\*|b@)]
} B!lw>rUMQ
.4-S|]/d,
public PaginationSupport findPageByCriteria 4cL=f
oWT0WS
(final DetachedCriteria detachedCriteria){ ' 1IH^<b
return findPageByCriteria e<pojb1Q
e&kg[jU
(detachedCriteria, PaginationSupport.PAGESIZE, 0); gnec#j
} 'McVaPav
AUd}) UR
public PaginationSupport findPageByCriteria 4+Kc
ul1Vsj
(final DetachedCriteria detachedCriteria, finalint +z_0 ?x
#YV;Gp(2h
startIndex){ CK%W+";
return findPageByCriteria TlJF{ <E
nfU}ECun4
(detachedCriteria, PaginationSupport.PAGESIZE, O\z%6:'M
l,3tU|V
startIndex); 2I5@zm
ea
} $1F9TfA
4O'ho0w7
public PaginationSupport findPageByCriteria k3w#^
"i
?2agU
(final DetachedCriteria detachedCriteria, finalint C$5x*`y
n1V*VQV
pageSize, $MR4jnTT
finalint startIndex){ :JmNy<
return(PaginationSupport) <7+.5iB3
UKdzJEhG
getHibernateTemplate().execute(new HibernateCallback(){ bL<cgtz7)
publicObject doInHibernate
[DviN
w;O '6"
(Session session)throws HibernateException { a'r\e2/e?H
Criteria criteria = 2TO1i0
b(F`$N@7C
detachedCriteria.getExecutableCriteria(session); Smo'&x
int totalCount = tVwN92*J
K, Vl.-4?
((Integer) criteria.setProjection(Projections.rowCount p_D)=Ef|&
0&|-wduR=
()).uniqueResult()).intValue(); sTONkd
criteria.setProjection hi%>&i*
{WChD&v
(null); ~V5jjx*
List items = ;F-kE4w
%$U+?lk}
criteria.setFirstResult(startIndex).setMaxResults {$JIR}4S
}0o0 "J-$
(pageSize).list(); NoT oLt\
PaginationSupport ps = lH8?IkK,g
CS
new PaginationSupport(items, totalCount, pageSize, *^]ba>
W0Vjs|/
startIndex); 78kk"9h'
return ps; X|:O`b$G
} C.|MA(7
}, true); L!5HE])<)
} :\Dm=Q\
;%&@^;@k%
public List findAllByCriteria(final 4_eq@'9-q
(]L=$u4
DetachedCriteria detachedCriteria){ xo}hu%XL
return(List) getHibernateTemplate +Aq}BjD#
te_D
,
().execute(new HibernateCallback(){ .$rcTZ
publicObject doInHibernate B7
T+a
'?nhpT^
(Session session)throws HibernateException { ?:,j9:m?
Criteria criteria =
zcc]5>
[Fe5a
detachedCriteria.getExecutableCriteria(session); vKxwv
YDe
return criteria.list(); GauIe0qV
} ( Qnn
}, true); &7cy9Z~m
} z]pH'c39
MC3{LVNK
public int getCountByCriteria(final y}8j_r
>A6lX)
DetachedCriteria detachedCriteria){ tO# y4<
Integer count = (Integer) #Uo
9BM
<