Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 EN\cwa#FU
HzGwO^tbK
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 t&?{+?p:
9
/]3[|
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 QR#>Ws
K~vJ/9"|R
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 e' o2PW
`6)Qi*Z
。 %S;AM\o4
< ,0D|O,Y
分页支持类: x)Bbo9J
;&O?4?@4
java代码: p"p~Bx
a%B&F|u
'~&W'='b;
package com.javaeye.common.util; @6yc^DAA
;6P>S4`w
import java.util.List; ?iP7Ki
Pgr2S I
publicclass PaginationSupport { (T#$0RFq
qisvGHo
publicfinalstaticint PAGESIZE = 30; AJ7^'p9Y
xyL)'C
privateint pageSize = PAGESIZE; B#S8j18M
h'-4nu;*
privateList items; 8C@u+tx
/S]RP>cQ
privateint totalCount; ;7z6B|8
AE}cHBwZE
privateint[] indexes = newint[0]; l; _IH|A
7j\^h2
privateint startIndex = 0; HK/WO jr
1v]%FC`
public PaginationSupport(List items, int 49Jnp>h
=0d|F
8
totalCount){ S4_/%~?
setPageSize(PAGESIZE);
Fn@`Bi?#q
setTotalCount(totalCount); NSz}
setItems(items); oL@ -<;zKO
setStartIndex(0); T<pG$4_
} w-pgtO|Us
ce\d35x!
public PaginationSupport(List items, int RH;ulAD6(~
Dhn7N8(LF!
totalCount, int startIndex){ nUP, Yd
setPageSize(PAGESIZE); d=xjLbsZ
setTotalCount(totalCount); _J!^iJ
setItems(items); h5'hP>b#
setStartIndex(startIndex); ^1.*NG8
} m}wn+R
TM(y%!\
public PaginationSupport(List items, int -_ I)5*N
D8wf`RUt
totalCount, int pageSize, int startIndex){ W]oD(eZ
setPageSize(pageSize); z)^|.
setTotalCount(totalCount); 2/*u$~
setItems(items); ":udo VS!
setStartIndex(startIndex); `xBoNQai
} p3U)J&]c6
Rsfb?${0G
publicList getItems(){ M9W
zsWM
return items; r&E gP
} =%7drBo D
nXRa_M(z8
publicvoid setItems(List items){ L5FOlzn
this.items = items; k)n
b<JW|r
} y{hg4|\
}:IIk-JoC
publicint getPageSize(){ fwz:k]vk
return pageSize; G{} 2"/
} zkRAul32|
Z&n[6aV'F
publicvoid setPageSize(int pageSize){ (&e!u{I
this.pageSize = pageSize; ki'$P.v{$w
} [nO3%7t@
l)[|wPf
publicint getTotalCount(){ L?[m$l!T}
return totalCount; o%?)};o
} w[-)c6J yE
[;z\bV<S
publicvoid setTotalCount(int totalCount){ src9EeiV
if(totalCount > 0){ oFU:]+.+D
this.totalCount = totalCount; WVa%<
int count = totalCount / z^QrIl/<c2
YbP
@
pageSize; Rs<q^w]
if(totalCount % pageSize > 0) Qfn:5B]tI
count++; "#O9ij
indexes = newint[count]; [ey#
,&T
for(int i = 0; i < count; i++){ `MI;.t
indexes = pageSize * uB
I/3aQ
g{]6*`/Z
i; "u^Erj# /
} Nu"v
.]Y2
}else{ |eu8;~A
this.totalCount = 0; ytIPY7E
} oVpZR$
} WoZU} T-
;W?#l$R
publicint[] getIndexes(){ RK!9(^Ja
return indexes; 0V~zZ/e
} 64?HqO
6(
"bhK%N;
publicvoid setIndexes(int[] indexes){ Nnh\FaI
this.indexes = indexes; NuQ!huh
} s>J5.Z7"'j
i=xh;yb|
publicint getStartIndex(){ >N |?>M*
return startIndex; D m0)%#
} EVqW(|Xg
h< r(:.%!}
publicvoid setStartIndex(int startIndex){ PGP#$JC
if(totalCount <= 0) O6G\0o
this.startIndex = 0; KHAc!4lA
elseif(startIndex >= totalCount) ~!Nj DDk
this.startIndex = indexes fmuh9Z
"A}sD7xy9
[indexes.length - 1]; 6'^E
],:b
elseif(startIndex < 0) ;TJpD0
this.startIndex = 0; n*7^lAa2
else{ K KB+o)*W
this.startIndex = indexes 6MVu"0#
vS8&,wJ!
[startIndex / pageSize]; 7% D 4
} r E m/Q!
} oy8jc];SO
`>
%QCc\
publicint getNextIndex(){ gE6'A
int nextIndex = getStartIndex() + Ar!0GwE+
t%Jk3W/f
pageSize; kGV:=h
if(nextIndex >= totalCount) Lu}jk
W*
return getStartIndex(); %nZ:)J>kz
else 9`*ST(0/
return nextIndex; `D77CC]vU
} 5pJe`}O4
v#Rh:#7O%U
publicint getPreviousIndex(){ B%8@yS
int previousIndex = getStartIndex() - =%m{|HQ`
2f[;U"
pageSize; 8%,#TMOg
if(previousIndex < 0) R/oi6EKv
return0; j0e,>X8
else kkjugm{D7
return previousIndex; 2=_$&oT**
} Z^|N]Ej
~X3g_<b_8
} F}}!e.>c
#yH+ENp0
=de'Yy:\-
8ao-]QoMZ
抽象业务类 XkA] 9,@
java代码: $Lp [i
<O]
WutPy_L<
6nL^"3@S!
/** 9rMO=
* Created on 2005-7-12 ^VXhv9\>B
*/ +*8su5:[&@
package com.javaeye.common.business; EX8+3>)
P PJ^;s
import java.io.Serializable; p^8a<e?f~f
import java.util.List; xxur4@p!
8oJl ]
import org.hibernate.Criteria; [#Qf#T%5h
import org.hibernate.HibernateException; ;U=b6xE
import org.hibernate.Session; G[>NP#P
import org.hibernate.criterion.DetachedCriteria; (u &x.J
import org.hibernate.criterion.Projections; Or? )Nlg6x
import UH MJ(.Wa-
+Vk L?J
org.springframework.orm.hibernate3.HibernateCallback; %+l95Dv1
import )k Wxp
~z:]rgX
org.springframework.orm.hibernate3.support.HibernateDaoS +0&^.N
e{E\YEc
upport; TLsF c^X
{5B j*m5
import com.javaeye.common.util.PaginationSupport; q}t]lD
%C
bo|THS
public abstract class AbstractManager extends LTe ({6l0
8{ZTHY-
HibernateDaoSupport { @/s|<*
m54>}
privateboolean cacheQueries = false; %>&ex0j]
1b~21n
privateString queryCacheRegion; #+ch
@S@VsgQ%3Z
publicvoid setCacheQueries(boolean hr];!.Fv
"OenYiz
cacheQueries){ xqX3uq
this.cacheQueries = cacheQueries; 1'o[9-
} r
&.~
{
JN/=x2n.
publicvoid setQueryCacheRegion(String v*!N}1+J
K) }1;
queryCacheRegion){ WAxNQfEe
this.queryCacheRegion = (vG*)a
46g0
e
queryCacheRegion; 'JOCL0FP
} \8xSfe
-yf8
publicvoid save(finalObject entity){ "B{3q`(
getHibernateTemplate().save(entity); Q'n+K5&p
} `PbY(6CF
DO(};R%=
publicvoid persist(finalObject entity){ 8_}t,BC
getHibernateTemplate().save(entity); oMEW5.VX
} N~,Ipf
O]tR~a
publicvoid update(finalObject entity){ %j\&}>P4$
getHibernateTemplate().update(entity); ui>jJ(
} Kzrd<h]`)
?+Gt?-! 5q
publicvoid delete(finalObject entity){ &b|RoPV
getHibernateTemplate().delete(entity); vQ}ZfP
} )J[m>tyY5
Z9DfwWI2nu
publicObject load(finalClass entity, <W#G)c0
:Dty([
finalSerializable id){ n0lOq
return getHibernateTemplate().load 84WDR?
Oz6$u
(entity, id); |N`0G.#
} PRU&y/zZmG
-W9DH^EL<
publicObject get(finalClass entity, 1L*[!QT4
b WNa6x
finalSerializable id){ Sh(ys*y>
return getHibernateTemplate().get V| V9.
rC!O}(4t%$
(entity, id); W\~ie}D{
} M)#9Q=<
\}Am]Y/ w
publicList findAll(finalClass entity){ OWibmX
return getHibernateTemplate().find("from 684& H8
_]zX W
" + entity.getName()); ycBgr,Ynu<
} 3JGrJ!x
2OJlE)
.
publicList findByNamedQuery(finalString v;\cM/&5
W On<;'}M&
namedQuery){ bN/8 ~!
return getHibernateTemplate R>0[w$
W^8
().findByNamedQuery(namedQuery); u:APGR^
} Zp7Pw
?XY'<