Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 PK|-2R"M
=?5)M_6)
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 DbGS]k<$
mixsJ}e
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 JP#S/kJ%3
*X0>Ru[
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 | {9<%Ok4P
abo=v<mR
。 .}IW!$
dq
O}M-6!%<,
分页支持类: +,e#uuj$p
4@9Pd &I
java代码: +x]/W|5
t3<MoDe7`r
sz9W}&(j
package com.javaeye.common.util; bzr2Zj{4
O<S.fr,
import java.util.List; #&Hi0..y
2B_|"J
publicclass PaginationSupport { !"^Zr]Qt+\
vJWBr:`L
publicfinalstaticint PAGESIZE = 30; JR!-1tnc
y:'Ns$+
privateint pageSize = PAGESIZE; 1wFu3fh@
5B=uvp|Y
privateList items; CsZ~LQ=DB
s6H.Q$3L
privateint totalCount; a?[[F{X9^
Iz0$T.T
privateint[] indexes = newint[0]; Q'OtXs 80
EBy7wU`S
privateint startIndex = 0; $1yy;IyR
]az(w&vqg2
public PaginationSupport(List items, int {4J.
U1 _"D+XB
totalCount){ T^v763%
setPageSize(PAGESIZE); .a4,Lr#q.
setTotalCount(totalCount); o[Ffa#sE
setItems(items); |A&;m}(Mt
setStartIndex(0); 8$IKQNS
} $d<NN2
>@vu;j\*E5
public PaginationSupport(List items, int b-u@?G|<
9nFL70
totalCount, int startIndex){ Sn nfU
setPageSize(PAGESIZE); _3Eo{^
setTotalCount(totalCount); gFR}WBl/
setItems(items); )re<NE&M
setStartIndex(startIndex); m23"xnRB
} [qc1
V%g
~F"S]
public PaginationSupport(List items, int X4%uY
]?6wU-a
totalCount, int pageSize, int startIndex){ 8iIp[9~=
setPageSize(pageSize); /.]u%;%r[
setTotalCount(totalCount);
2%@tnk|@
setItems(items); ajSB3}PN
setStartIndex(startIndex); M@[W"f
Wq
} &gCGc?/R#
y3~`qq
publicList getItems(){ Q(& @ra!{
return items; Ark]>4x>
} qPDNDkjDD
&%2^B[{
publicvoid setItems(List items){ lHM+<Z
this.items = items; p/Pus;*s
} 6 f*:;
`2f/4]fY
publicint getPageSize(){ Z9vMz3^N
return pageSize; -06G.;W\^
} Bsa;,
TiD#t+g
publicvoid setPageSize(int pageSize){ ~4fE`-O
this.pageSize = pageSize; [Hh*lKg
} 6 byeO&d
bdL= ?KS
publicint getTotalCount(){ VhO+nvd*W
return totalCount; [*
<x)
} S~ /2Bw!2
:E9pdx+
publicvoid setTotalCount(int totalCount){ /EjXyrn2
if(totalCount > 0){ )Rn\6ka
this.totalCount = totalCount; gX"-3w
int count = totalCount / \c2x
udU
$gr>Y2i
pageSize; '8 .JnCg
if(totalCount % pageSize > 0) riW9l6s'
count++; R+HX'W
indexes = newint[count]; }H
~-oYMu
for(int i = 0; i < count; i++){ j|KDgI<0
indexes = pageSize * -,yp?<
]Thke 4
i; t4oD> =,92
} <tvLKx
}else{ (.UU40:t
this.totalCount = 0; n.g-%4\q
} 8:0/Cj
} h*R@ d
l`"?KD
publicint[] getIndexes(){ bTJ<8q
return indexes; p8'$@:M\
} qur2t8gnxq
lie,A
publicvoid setIndexes(int[] indexes){ f#z:ILG=
this.indexes = indexes; Ch]d\G M
} e@P(+.Ke
~cc }yDe
publicint getStartIndex(){ lTC0kh
return startIndex; ao)';[%9s
} 35l%iaj]G5
/ZyMD(_J
publicvoid setStartIndex(int startIndex){
,IB\1#
if(totalCount <= 0) YYpC!)
this.startIndex = 0; sJL Oz>
elseif(startIndex >= totalCount) u\ _yjv#
this.startIndex = indexes e|oMbTZ5m
{D[6=\F
[indexes.length - 1]; )#i@DHt=
elseif(startIndex < 0) >ZJ]yhbhK
this.startIndex = 0; 8&U
Mmbgy
else{ 0si1:+t-[+
this.startIndex = indexes :\[l~S
X,G<D}
[startIndex / pageSize]; NK qIx
} 4s7
RB
} pg%(6dqK4
j!agD_J
publicint getNextIndex(){ N>(w+h+
int nextIndex = getStartIndex() + r#OPW7mhE
.e7tq\k
pageSize; i.^ytbH
if(nextIndex >= totalCount) Rq|6d
M6H
return getStartIndex(); loIb}8
else a <C?- g|
return nextIndex; JOuyEPy
} opH!sa@U
*;@wPT
publicint getPreviousIndex(){ 1 !_p
int previousIndex = getStartIndex() - 1r=cCM
;qaPK2a8
pageSize; PIU@}:}
if(previousIndex < 0) wH?)ZL
return0; X$5
else 0!,uo\`
return previousIndex; =.z;:0]'n
} KRL.TLgq)
j{lurb)y
} Z5Lmg
fHd[8{;P:
:|n[z jK/S
HF0G=U}i
抽象业务类 JaUzu3*=
java代码: wF`Y
,@
*b>RUESF
`,6|6.8#
/** V22z-$cb
* Created on 2005-7-12 sQ`G'<!
*/ 6C
VH)=%
package com.javaeye.common.business; O q$_ q
jRjeL'"G
import java.io.Serializable; f|,Kh1{e
import java.util.List; 2]vTedSOl
%)7t2D
import org.hibernate.Criteria; s)- ;74(
import org.hibernate.HibernateException; wj6u,+
import org.hibernate.Session; Hk*1Wrs*
import org.hibernate.criterion.DetachedCriteria; e' M&Eh
import org.hibernate.criterion.Projections; Dy.i^`7\
import N" L&Z4Z
l$&~(YE f
org.springframework.orm.hibernate3.HibernateCallback; 4`i8m
import )I&.6l!#
_Gq6xv\b1
org.springframework.orm.hibernate3.support.HibernateDaoS d#E&,^@M
e%cTFwX?n
upport; +4-T_m/W/
U,P>P+\@
import com.javaeye.common.util.PaginationSupport; Ms|c"?se
'yPKQ/y$x
public abstract class AbstractManager extends l(NQk> w
hY.i`sp*/
HibernateDaoSupport { 3q'AgiW
d~~kJKK
privateboolean cacheQueries = false; '$OUe {j<
3A`Gx#
privateString queryCacheRegion; e%[*NX/
At\(/Zy
publicvoid setCacheQueries(boolean 1<G+KC[F
x.-d)]a!
cacheQueries){ l\W|a'i
this.cacheQueries = cacheQueries; RKP,w%
} Z jmQ
-g~+9/;n
publicvoid setQueryCacheRegion(String ^i%S}VK
(|BY<Ac3
queryCacheRegion){ Ip'tB4Mq
this.queryCacheRegion = ]i#p2?BR
h&i*=&<HP6
queryCacheRegion; nx'c=gp
} O=3/qs6m
\I!mzo
publicvoid save(finalObject entity){ 0cycnOd
getHibernateTemplate().save(entity); m}'_Poc
} XX/gS=NE#.
ZHK>0>;
publicvoid persist(finalObject entity){ ;Xt<\^e
getHibernateTemplate().save(entity); %[$HX'Y
} 7,SQz6]
Kd-1EU
publicvoid update(finalObject entity){ ) bFl-
getHibernateTemplate().update(entity); yus3GqPI
} r""rJzFz'
!uGfS' Vl
publicvoid delete(finalObject entity){ Q7uJ9Y{X
getHibernateTemplate().delete(entity); 96^aI1:
} lndz
/i"hViCrlG
publicObject load(finalClass entity, &q>8D'
e\C-a4[C8P
finalSerializable id){ $/M-@3wro
return getHibernateTemplate().load Z
i6s0Uck
hty'L61\z
(entity, id); fLe~X!#HF
} |H
t5a.
z&gmaYwq
publicObject get(finalClass entity, :dt[ #
Q~]oN
finalSerializable id){ x1eC r_
return getHibernateTemplate().get s-IE}I?;
ts~VO`
(entity, id); =R=V
} _BP%@o
#tR:W?!
publicList findAll(finalClass entity){ Rv&"h_"t
return getHibernateTemplate().find("from jg?UwR&
1(Is
7
" + entity.getName()); nNCR5&,q
} zgGysjV
D;!sH?J@+
publicList findByNamedQuery(finalString `Xos]L'w
Lw\u{E@
namedQuery){ .h W>#
return getHibernateTemplate XN<!.RCw
Z^V;B _
().findByNamedQuery(namedQuery); h*VDd3[#
} j~N*T XkC
H=BI%Z
publicList findByNamedQuery(finalString query, 9:{<