Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 I(<9e"1O
[)+wke9
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 |d$4Fu(M~
6ChFsteGFr
据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 K;z$~;F
R
+
~b@
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 = N&5]Z
|`ya+/ff+
。 ?(Se$iTZ
OZc4 -5
分页支持类: za%gD
8)lrQvZ
java代码: apOXcZ
K| dI'TnW
44NMof8N
package com.javaeye.common.util; Gv[s86AP,
1rx,qfCq
import java.util.List; 2&"qNpPtE
xi51,y+(5
publicclass PaginationSupport { y'aK92pF:
},n?
publicfinalstaticint PAGESIZE = 30; q9:g
+GJPj(S
privateint pageSize = PAGESIZE; =oBlUE
rD+mI/_J`
privateList items; V7b;qC'
Rk,'ujc
privateint totalCount; beaSvhPU
({ O~O5k
privateint[] indexes = newint[0]; %pIP#y[4
{E; bT|3z
privateint startIndex = 0; Zg$S% 1(Q
i;rcgd
public PaginationSupport(List items, int H;R~d%!b
mC0_rN^Aj
totalCount){ - "NK"nb
setPageSize(PAGESIZE); wn^#`s!]U
setTotalCount(totalCount); Oa2\\I
setItems(items); ZNVrja*
setStartIndex(0); Sn
S$5o
} b'``0OB )
lA%FS]vh
public PaginationSupport(List items, int |
C^.[)
k#bG&BF
totalCount, int startIndex){ |kH.o=
setPageSize(PAGESIZE); 0kSM$D_
setTotalCount(totalCount); MuJP.]5>`
setItems(items); o\F>K'
setStartIndex(startIndex); a:8 MoH 4
} ;4U"y8PVTh
m]vS"AdX
public PaginationSupport(List items, int X% )~i[_DV
8>@JW]
totalCount, int pageSize, int startIndex){ jST4O"DjM
setPageSize(pageSize); #dKy{Q3he
setTotalCount(totalCount); Vm8@LA
setItems(items); )X;051Q
setStartIndex(startIndex); R#T
6]
}
`Xz!apA
G^N@r:RS
publicList getItems(){ 06O_!"GD}
return items; |h}4J
} *Y?oAVkz
4(*PM&'R
publicvoid setItems(List items){ )Gavjj&uJ
this.items = items; &<x.D]FA]
}
99.F'Gz
YA@MLZm
publicint getPageSize(){ wZZ~!"O&
return pageSize; N8pV[\f
} n$N$OFuO
{nXygg
J
publicvoid setPageSize(int pageSize){ }K8e(i6z
this.pageSize = pageSize; LPBa!fq
} _P=+\[|y
tAE(`ow/Ur
publicint getTotalCount(){ 5JhvYsf3_
return totalCount; !ej]'>V,X
} "w$,`M?2
?m5EXe
publicvoid setTotalCount(int totalCount){ *L9v(Kc
if(totalCount > 0){ Gbjh|j=
this.totalCount = totalCount; >{QO$F#
int count = totalCount / aW*k,\:e
Q?;Tc.O"/
pageSize; 6_<~]W&
if(totalCount % pageSize > 0) ;@T0wd_i|
count++; DI8<0.L
indexes = newint[count]; q8&l%-d`
for(int i = 0; i < count; i++){ %59uR}\
indexes = pageSize * 5@%.wb4
h}!9?:E
i; WPkKbF
} 2cUT bRm
}else{ /q+;!EM
this.totalCount = 0; F@k}p-e~
} 9Q^cE\j
} qC{JsX`~
|ZE^'e*k
publicint[] getIndexes(){ t"Ci1"U
return indexes; En1LGi4#
} u -P !2vT
RYA@{.O
publicvoid setIndexes(int[] indexes){ :^Pks R
this.indexes = indexes; );%H;X+x
} _crhBp5@T3
ka!v(j{E
publicint getStartIndex(){ ,5"(m?[m
return startIndex; aUzCKX%>C
} bq9w@O
tH)jEY9
publicvoid setStartIndex(int startIndex){ (bQ3:%nD
if(totalCount <= 0) njf\fw_
this.startIndex = 0; C<AW)|r_
elseif(startIndex >= totalCount) t+}wTis
this.startIndex = indexes Bp_R"DS7A
(z>t 4(%\
[indexes.length - 1]; i?Pnyi
elseif(startIndex < 0) ^l|b>z"0ao
this.startIndex = 0; Kc?4q=7q
else{ ^L5-2;s<U'
this.startIndex = indexes 3q}j"x?
fCx(
[startIndex / pageSize]; 4[@YF@_=M
} t|eH'"N%o
} EC;>-s
_ Lb"yug
publicint getNextIndex(){ gr*CN<
int nextIndex = getStartIndex() + ;5bd<N
v8*)^-Fx
pageSize; oD V6[e
if(nextIndex >= totalCount) ;o3gR4u_L
return getStartIndex(); @]vY[O!&;
else c%C6d97q
return nextIndex; >i,_qe?V:w
} 1*9.K'
4_kN';a4Q
publicint getPreviousIndex(){ tLWw<)t
int previousIndex = getStartIndex() - Bj1%}B
(_zlCHB
pageSize; A vq+s.h
if(previousIndex < 0) ><
$LV&
return0; WA8<:#{e
else nFNRiDx
return previousIndex; #dj?^n g
} uy's eJ
)rK2%\Z
} (tX3?[ii
+ODua@ULFB
4}h}`KZZ
yl~_~<s6
抽象业务类 ^~;ia7V&2
java代码: "0PrdZMx
W~'xJ
m+hI3@j
/** k?14'X*7yu
* Created on 2005-7-12 n(J>'Z
*/ tO8\} u4c
package com.javaeye.common.business; *z?Uh$I4
3$nK
import java.io.Serializable; o,`"*][wd
import java.util.List; z~pp7
Zk%@GOu\
import org.hibernate.Criteria; x/umwT,o v
import org.hibernate.HibernateException; Bz/Vzc(
import org.hibernate.Session; yx5e
import org.hibernate.criterion.DetachedCriteria; &.,K@OFE}
import org.hibernate.criterion.Projections; zHb[.ry~
import t1adS:)s
Ev5~= ]
org.springframework.orm.hibernate3.HibernateCallback; LigB!M
import ?`piie9V
#y83tNev
org.springframework.orm.hibernate3.support.HibernateDaoS z6iKIw
$
25)9R^
upport; </{Zb.
cjEqN8
import com.javaeye.common.util.PaginationSupport; $V(]z`b&
q++r\d^{
public abstract class AbstractManager extends 2K91E}
vd4@ jZ5
HibernateDaoSupport { ,Y/B49
/h0bBP
privateboolean cacheQueries = false; |6*Bu1
sgp.;h'
privateString queryCacheRegion; 'RMUjJ-!
WR)=VE
publicvoid setCacheQueries(boolean ^)Hf%
&J6`Q<U!
cacheQueries){ L/"};VI
this.cacheQueries = cacheQueries; /l*v *tl
} JpC'(N
:Z//
publicvoid setQueryCacheRegion(String H2s:M
@'R)$:I%L
queryCacheRegion){ f+^6.%
this.queryCacheRegion = m1X7zU Cy
N `|A
queryCacheRegion; i)o;,~ee
} EL?(D
" CT}34l
publicvoid save(finalObject entity){ !4vb{AH
getHibernateTemplate().save(entity); VGV-t
} 4!/JN J
/|
v.A\:
publicvoid persist(finalObject entity){ <