Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 "RuJlp
Dk|S`3
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 -(~Tu>KaH
l"o@.C}f/
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 5^cPG" 4@
'x<gC"0A
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 X'.}#R1
!1+L0,I6
。 \$^ z.
\lCr~D5
分页支持类: &}32X-~y
UoPd>q4Uj
java代码: l>h%J,W
~6.AE/ow
fF[n?:VV
package com.javaeye.common.util; |TF,Aj
qqT6C%Q`kG
import java.util.List; hD{+V!{
6[wej$u
publicclass PaginationSupport { ~[Mk QJxe
P~redX=t@
publicfinalstaticint PAGESIZE = 30; kU_bLC?>D
\2-!%i,
privateint pageSize = PAGESIZE; kLMg|48fdI
}cgEC-
privateList items; yk!,{Q?<$
15VOQE5Fl`
privateint totalCount; ps"crV-W
uljd)kLy4O
privateint[] indexes = newint[0]; Gv>,Ad
ka
Sd'
uXX@
privateint startIndex = 0; dm,7OQ
,$Qa]UN5Q
public PaginationSupport(List items, int "p.MJxH
.x$+R%5U
totalCount){ ]kbmbO?M
setPageSize(PAGESIZE); rmUTl
setTotalCount(totalCount); Hq$AF
setItems(items); ;4 R1
setStartIndex(0); vmAMlgZ8{<
} `j0T[Pi
1lfkb1BM
public PaginationSupport(List items, int k6ERGQ9|I
f%ZqK_CW
totalCount, int startIndex){ [0yKd?e
setPageSize(PAGESIZE); hEsCOcEG
setTotalCount(totalCount); 9H2^4D8
setItems(items); YoGnk^$
setStartIndex(startIndex); =#^%; 6 6z
} d{hbgUSj
D#x D-c
public PaginationSupport(List items, int ~-GgVi*I
*PMvA1eN=#
totalCount, int pageSize, int startIndex){ T=:O(R1*0
setPageSize(pageSize); \ :8~na+(
setTotalCount(totalCount); )s,L:{<
setItems(items); !~04^(
setStartIndex(startIndex); p&B98c
} *rSMD_>
:g2?)Er-
publicList getItems(){ uT8/xNB!
return items; OZ&J'Y
} -LzHCO/7(
%Z 9<La
publicvoid setItems(List items){ !e&ZhtTuC
this.items = items; r|:|\"Yk
} A`Z!=og=
Xlw&hKS
publicint getPageSize(){ C16MzrB}(N
return pageSize; cn v4!c0
} gHQ[D|zu
djS?$WBpU
publicvoid setPageSize(int pageSize){ A1{P"p!
this.pageSize = pageSize; -_
.f&l8
} %h g=@7,|
~1`.iA
publicint getTotalCount(){ SOE#@{IXBa
return totalCount; <_uLf9ja
} dI5Z*"`R9
@R9zLL6#7
publicvoid setTotalCount(int totalCount){ ^HLi1w|
if(totalCount > 0){ [5:,+i
this.totalCount = totalCount; zKe&*tZ
int count = totalCount / oR5hMu;j+
Z{EHV7
pageSize; f*Xonb
if(totalCount % pageSize > 0) C<r7d [
count++; @ z#;O2
indexes = newint[count]; @SDsd^N{2P
for(int i = 0; i < count; i++){ a~Sf~ka
indexes = pageSize * 8*6vX! Z|
DOaEz?2)
i; r*N:-I~z
} X |.'_6l.
}else{ Id
*Gs>4U
this.totalCount = 0; jx!)N>
} pB@8b$8(Z
} 'BpK(PlUh
_J }ce
publicint[] getIndexes(){ L=iaL[zdJ
return indexes; @%IZKYfc~
} ;y%l OYm
A,W-=TC
publicvoid setIndexes(int[] indexes){ _K)B
this.indexes = indexes; zawU
} RU,f|hB4
mk~i (Ee
publicint getStartIndex(){ K%Mm'$fTw
return startIndex; WiH%URFB
} a^<
({yuwH?tH
publicvoid setStartIndex(int startIndex){ Cmm"K[>Rx
if(totalCount <= 0) LU_@8i:
this.startIndex = 0; ilw<Q-o4(
elseif(startIndex >= totalCount) KM g`O3_16
this.startIndex = indexes 8Z4d<DIJ
[y\ZnoB
[indexes.length - 1]; X1]&j2WR
elseif(startIndex < 0) d;|e7$F'
this.startIndex = 0; 8X!UtHml
else{ C?#if;c
this.startIndex = indexes 30*^ERO
N6c']!aM@
[startIndex / pageSize]; Nv,[E+a2
} $lOx
6rL
} f-y4V}
5@tpJ8E8$
publicint getNextIndex(){ F@kOj*5,[
int nextIndex = getStartIndex() + U#ueG
tE]g*]o
pageSize; Cnd*%C PZ
if(nextIndex >= totalCount) Z@nM\/vLA
return getStartIndex(); V2ypmkn8&
else tv+q~TFB=Z
return nextIndex; i/Q*AG>b
} _{8f^@I"+
?;0=>3p*0
publicint getPreviousIndex(){ g:q+.6va"
int previousIndex = getStartIndex() - ]cc4+}L~
|b;}'
*
pageSize; ;*:d)'A
if(previousIndex < 0) HW|c -\tS
return0; ZFOYYht
else UG s
<<
return previousIndex; I.fV_
H^
} ibl^A=
RecA?-0
} O4@Ki4f3A%
G-G!c2o
Z_iu^Q
iv?'&IUfK
抽象业务类 i6kW"5t
java代码: Y)N(uv6
y rdJX
Fla[YWS
/** [@";\C_I
* Created on 2005-7-12 0'TqW9P
*/ +%>s\W+?]
package com.javaeye.common.business; PkLRQ}
C(3yJzg>y
import java.io.Serializable; i`gsT[JQRX
import java.util.List; P~#!-9?
X@b$C~+
import org.hibernate.Criteria; \_!FOUPz(
import org.hibernate.HibernateException; E(4ti]'4
import org.hibernate.Session; jHT 4I>\
import org.hibernate.criterion.DetachedCriteria; .hg<\-:_
import org.hibernate.criterion.Projections; H
#J"'
import [])M2_
}yLdU|'W
org.springframework.orm.hibernate3.HibernateCallback; O*z x{a6
import 022YuqL<v
6ApW+/
org.springframework.orm.hibernate3.support.HibernateDaoS bS&'oWy*B
;} gvBI2e
upport; ""^9WLH4g-
'P)xY-15
import com.javaeye.common.util.PaginationSupport; lT@5=ou[
n #p6i
public abstract class AbstractManager extends Gc~A,_(
9|v
HibernateDaoSupport { s.6S:
#dqZdj@
privateboolean cacheQueries = false; :GIY"l'
V{HZ/p_Y
privateString queryCacheRegion; 8q)2)p
`-\4Dx1!q
publicvoid setCacheQueries(boolean 3! dD!'
j5R= K*y
cacheQueries){ 7FqmT
this.cacheQueries = cacheQueries; 9u1_L`+b
} CHdw>/5
~r]ZD)
publicvoid setQueryCacheRegion(String )3.udx
6O"Vy
queryCacheRegion){ |}es+<P
this.queryCacheRegion = -v&Q'a
3a:(\:?z
queryCacheRegion; [=Np.:Y%
} ( {m["d
b/"gkFe#
publicvoid save(finalObject entity){ kmy?`P10(z
getHibernateTemplate().save(entity); W$EX6jTGI
} K
*{C:Y
3_fLafA
publicvoid persist(finalObject entity){ cK(}B_D$
getHibernateTemplate().save(entity); *Sz`=U7n
} <!y_L5S|
.W,<]L '
publicvoid update(finalObject entity){ ZZ!d:1'7
getHibernateTemplate().update(entity); `vDg~o
} \tyL`&)
Wfu%,=@,
publicvoid delete(finalObject entity){ ZA2y
getHibernateTemplate().delete(entity); kC01s
} U>e@m?
3 V8SKBS
publicObject load(finalClass entity, Uk S86`.
pA4/'7nCl
finalSerializable id){ 01H3@0Q6
return getHibernateTemplate().load >/6v`
8F
/{>ds-;-
(entity, id); ,PJl32
} (-B0fqh=G
cC"7Vt9b
publicObject get(finalClass entity, 'V4.umj1~
VEpIAC4
finalSerializable id){ &4O"Xs`ka
return getHibernateTemplate().get OMJr.u
]
X%bU*4
(entity, id); 6du"^g
} s_zZ@azJ
Y91TF'
publicList findAll(finalClass entity){ xtpD/,2
return getHibernateTemplate().find("from j[iJo
5
U,RIr8 G
" + entity.getName()); 4d!&.Qo9
} A~*Wr+pv
sFSrMI#R
publicList findByNamedQuery(finalString vIN6W
DQ9 <N~l
namedQuery){ |g8
]WFc
return getHibernateTemplate g\rujxHlH
PA`b~Ct
().findByNamedQuery(namedQuery); jd]MC*%
} "N4c>2Q
xqP0Z),Ow
publicList findByNamedQuery(finalString query, BAzc'x&<
Gg5vf]VFo
finalObject parameter){ &Radpb2p6
return getHibernateTemplate /Klwh1E
js;IUSj.
().findByNamedQuery(query, parameter); lDMYDy{<
} i;6\tK"!
pRMM1&H
publicList findByNamedQuery(finalString query, =\CbX
d@C ;rzR
finalObject[] parameters){ ZJy
D/9y
return getHibernateTemplate _qE2r^o"B
<u->hT
().findByNamedQuery(query, parameters); )I1LBvfQ
} Y]Su<tgX?
p7.@ez ;
publicList find(finalString query){ Q>TaaGc
return getHibernateTemplate().find <@F4{*
OX8jCW
(query); Q{>9Dg
} p&