Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 Ja (/ym^
'sA&Pm
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 S 5d{dTPq
q6ikJ8E8b
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 kl={L{r
5sE^MS1
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 {c J6Lq&
h)<R#xw
。 )ld7^G
%/^d]#
分页支持类: #>,cc?H-
1z`,*eD7
java代码: }UO,R~q~
D~y]d
<N*>9S,}
package com.javaeye.common.util; asF-mf;D
<G&v
import java.util.List; _4W#6!
srSTQ\l4
publicclass PaginationSupport { T9$U./69-L
kDz.{Ih
publicfinalstaticint PAGESIZE = 30; UP`q6]P
$YC~02{
privateint pageSize = PAGESIZE; $e_ps~{7$
Wp]EaYt2D
privateList items; g|zK%tR_P
c[YjGx
privateint totalCount; zm"\D
vN)
J{Ay(
privateint[] indexes = newint[0]; Cn55%:
\%C[l
privateint startIndex = 0; yjr@v!o
m3WV<Cbz
public PaginationSupport(List items, int w\mF2h
N<{`n;
totalCount){ BmM,vllO
setPageSize(PAGESIZE); aE%VH ;?
setTotalCount(totalCount); H|Nw)*.
setItems(items); C:K\-P9
setStartIndex(0); ##5/%#eZ
} YNXk32@j@e
D=\|teA&
public PaginationSupport(List items, int toWmm(7v
saT9%?4-
totalCount, int startIndex){ m7"f6zSo(
setPageSize(PAGESIZE); c`+ITNV
setTotalCount(totalCount); "tR.'F[n4P
setItems(items); zb" hy"hKw
setStartIndex(startIndex); Qx6/QaS?
} {eXYl[7n
J
v#^GNm
public PaginationSupport(List items, int Lm?*p>\Q
G4}q*&:k
totalCount, int pageSize, int startIndex){ wgyO%
setPageSize(pageSize); X2`>@GR/>
setTotalCount(totalCount); g@2.A;N0
setItems(items); Z]Y4NO;
setStartIndex(startIndex); ]Rye AJ3
} AAW7@\q.
6:,^CI|@t
publicList getItems(){ j+9
S
return items; 64lEB>VNm
} W'jXIO
E1C_d'
publicvoid setItems(List items){ p[)<d_
this.items = items; eqR#`
} uI2'jEjO
f*],j
publicint getPageSize(){ (HI%C@e9
return pageSize; _Pkh`}W:
} p5l$On
?a%i|Z7!
publicvoid setPageSize(int pageSize){ 4I*Mc%dD
this.pageSize = pageSize; Q.1ohj0)
} s]c$]&IGG
&[RU.Q!_H
publicint getTotalCount(){ 8:% R|b
return totalCount; /6zpVkV
} t {"iIz_S
Elp!,(+&6
publicvoid setTotalCount(int totalCount){ BcLt95;.\
if(totalCount > 0){ Y+GeT#VHe
this.totalCount = totalCount; "o3"1s>d{
int count = totalCount / \zU5G#LQ
}^[@m#
pageSize; zRu`[b3u<
if(totalCount % pageSize > 0) dLf8w>i`T
count++; tTH%YtG
indexes = newint[count]; Y2-bU 7mo
for(int i = 0; i < count; i++){ }NCvaO
indexes = pageSize * ;#9|l=
MPbPq3an
i; (OB8vTRXP
} <&:&qngg
}else{ 8>q%1]X
this.totalCount = 0; %KF:-
w
} h<;[P?z
} ap^=CEf
Q~JKKq
publicint[] getIndexes(){ 6# ";W2
return indexes; h&bV!M
} ]Rh(=bg
1fv~r@6s
publicvoid setIndexes(int[] indexes){ i[{]
LiP
this.indexes = indexes; yrAzD=
} q-%KfZ@(|
Ki/5xK=s
publicint getStartIndex(){ Xp6*Y1Y
return startIndex; c)MR+'d\WO
} ]Cn*C{
[IFRwQ^%_O
publicvoid setStartIndex(int startIndex){ ;Ia1L{472m
if(totalCount <= 0) Pki4wDCTW
this.startIndex = 0; b',bi.FH
elseif(startIndex >= totalCount) b0Ov+ )7#
this.startIndex = indexes $af}+:'
-!,]Y10
[indexes.length - 1]; jHlOP,kc
elseif(startIndex < 0) 7/_ VE
this.startIndex = 0; qYZ7Zt;
else{ Q5nyD/k4c
this.startIndex = indexes 3D{4vMmX
nFnF_
[startIndex / pageSize]; Dh No +"!z
} Sn2Ds)Pfx3
} qMES<UL>
gH^$Y~Lx
publicint getNextIndex(){ xeM':hD.o
int nextIndex = getStartIndex() + IXvz&4VD
8='21@wrN
pageSize; KM}4^Qc
if(nextIndex >= totalCount) )]>G,.9C}
return getStartIndex(); QYfAf3te
else ~}-p5 q2
return nextIndex; uuYH6bw*d
} #r.` V!=
#oJbrh9J6
publicint getPreviousIndex(){ yF5
int previousIndex = getStartIndex() - k>&s(b
P!+nZXo
pageSize; A?D"j7JD=L
if(previousIndex < 0) 0t COb9
return0; .(7C)P{.0
else x56
F
return previousIndex; e9@fQ
} j%Z{.>mJ
!N8)C@=
} zLw h6^?Y
207 O["Y
j(6$7+2qN
_SIs19"lR
抽象业务类 fE%[j?[
java代码: 0uIV6LI
2r}uE\GN
NnLhJPh
/** m/hi~.D9
* Created on 2005-7-12 YNC0Z'c9
*/ qN1 -plY
package com.javaeye.common.business; #EmffVtY
R_>TEYZ
import java.io.Serializable; hG~]~ )
import java.util.List; cxD}t'T
Stw+Dm\!
import org.hibernate.Criteria; ok3
import org.hibernate.HibernateException; a|P~LMPM
import org.hibernate.Session; B2G5hbaA
import org.hibernate.criterion.DetachedCriteria; Z0"&
import org.hibernate.criterion.Projections; Naf`hE9
import !*?(Q6
O:,2OMB}B`
org.springframework.orm.hibernate3.HibernateCallback; a\&(Ua
import E]H
tC?Aso
org.springframework.orm.hibernate3.support.HibernateDaoS 1( ?CNW[
}^pQbFku
upport; n-y^7'v
iijd$Tv
import com.javaeye.common.util.PaginationSupport; -?aw^du
"zedbJ0
public abstract class AbstractManager extends k>:/D
nI*(a:
HibernateDaoSupport { W7*_ T]
^3WIl]
privateboolean cacheQueries = false; %on9C`/
9xK4!~5V
privateString queryCacheRegion; qX
p,d
1akD]Z
publicvoid setCacheQueries(boolean YMj7
)&Kn(l)
cacheQueries){ +e0dV_T_>
this.cacheQueries = cacheQueries; |
or 8d>,
} T$n>7X-r
wWJQ~i?
publicvoid setQueryCacheRegion(String %Rd~|$@>x
]{AOh2Z.hv
queryCacheRegion){ Nxbd~^j
this.queryCacheRegion = n b0 Py>4
vn0cKz@
queryCacheRegion; cXb
@H#
} A]Q1&qM%
mEB2RLCM
publicvoid save(finalObject entity){ |5O >>a()
getHibernateTemplate().save(entity); Et}C`vZ+Ve
} lPRdwg-
h;EwkbDQg>
publicvoid persist(finalObject entity){ nE]~E xr
getHibernateTemplate().save(entity); x2j/8]'o
} (o x4K{
2vqmsl?
publicvoid update(finalObject entity){ %A)-m 69
getHibernateTemplate().update(entity); oh7#cFZZ0
} nr<WO~Xw~
hl6,#2$
publicvoid delete(finalObject entity){ Y7*(_P3/
getHibernateTemplate().delete(entity); 6(N.T+;]
} Gd30Be2gd
?418*tXd
publicObject load(finalClass entity, C.yY8?|
9UeVvH
finalSerializable id){ kyW6S+ #-
return getHibernateTemplate().load +A8=R%&b)[
Kk!6B
(entity, id); >a&