Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 d 40'3]/{
8CnvvMf
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 _Sk<S
"b1R5(Ar
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 RBv=
-pU\"$nuxH
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 \fM!^
O'&X aaZV
。 6&OonYsP
Be14$7r
分页支持类:
Skk3M?
1CS]~1Yp:
java代码: Op$J"R
R<0!?`b
g*w-"%"O
package com.javaeye.common.util; 6Ymo%OT
}07<(,0n
import java.util.List; -fSKJo#}|
0| DG\&?
publicclass PaginationSupport { $CQwBsYb=
QLpTz"H
publicfinalstaticint PAGESIZE = 30; g6a3MJV`
L/ICFa.G
privateint pageSize = PAGESIZE; RQK**
)Ido|!]0d
privateList items; @x-GbK?
Kz*AzB
privateint totalCount; 6 peM4X
H{tOCYyD
privateint[] indexes = newint[0]; gU 2c--`
kmwrv -W
privateint startIndex = 0; `w+9j-
W%jX-
public PaginationSupport(List items, int nO.+&kA
8Jy1=R*S
totalCount){ C5lD
Hw[CX
setPageSize(PAGESIZE); T=p}By3a
setTotalCount(totalCount); b8b PK<
setItems(items); Kp=3\) &
setStartIndex(0); Mb/6>
} d[Fr
[q+39
public PaginationSupport(List items, int r0$9c
r`E1<aCr|
totalCount, int startIndex){ ]#7Y@Yo
setPageSize(PAGESIZE); _ L:w;Oy9T
setTotalCount(totalCount); w-Q 6
-
setItems(items); 1oW]O@R
setStartIndex(startIndex); #]\G*>{
} Ew,wNR`
OFAqP1o{$
public PaginationSupport(List items, int h}:5hi Jw
8/kO9'.P
totalCount, int pageSize, int startIndex){ m&z%kVsg]
setPageSize(pageSize); 9kg>)ty@
setTotalCount(totalCount); Hr,lA(
setItems(items); _.8]7f`*Gc
setStartIndex(startIndex); F-\8f(\
} X'Il:SK
{|wTZ
publicList getItems(){ ^d$e^cU
return items; T^H ) lC#R
} GDQg:MgX
^EBM;&;7
publicvoid setItems(List items){ AA%g^PWpR
this.items = items; Ecl7=-y
} Zu73x#pI
UHl/AM>!
publicint getPageSize(){ o|n0?bThS-
return pageSize; oW1olmpp=
} (2\ekct ^
2<. /HH*f
publicvoid setPageSize(int pageSize){ Tu#k+f*s
this.pageSize = pageSize; 1ZW'PXUZ
} mb6?$1j
7
,~Krzv
publicint getTotalCount(){ ' g!_Flk
return totalCount; X10TZ
} <;Z~ vZ]
=` >Nfa+,
publicvoid setTotalCount(int totalCount){ :H:}t>X6Vo
if(totalCount > 0){ O.f3 (e!
this.totalCount = totalCount; zYJ`.,#C 5
int count = totalCount / )
G&3V
3>3ZfFC
pageSize; " yl"A4p
S
if(totalCount % pageSize > 0) z#67rh{
count++; _^$b$4)
indexes = newint[count]; I{UB!0H
for(int i = 0; i < count; i++){ TbM*?\7
indexes = pageSize * \Le#+P
u+FftgA
i; 5W'|qmJ
} XE%6c3s
}else{ -mdPqVIJn:
this.totalCount = 0; 5]ob;tAm
} >(J!8*7
} 9cPucKuj
v333z<<S
publicint[] getIndexes(){ wpMQ 7:j
return indexes; ttt&sW`
} \:28z
+a@SdWf
publicvoid setIndexes(int[] indexes){ vv_?ip:t
this.indexes = indexes; 9jBr868
} 45JLx?rN_
780MSFV8
publicint getStartIndex(){ du)G)~
return startIndex; LM`#S/h
} #>NZN1
RtEkd_2
publicvoid setStartIndex(int startIndex){ zOp"n\
if(totalCount <= 0) }Ec"&
this.startIndex = 0; j* ja)
elseif(startIndex >= totalCount) 5<
nK.i,
this.startIndex = indexes P3>2=qK"E(
Z)~4)71Y:
[indexes.length - 1]; Ds/zl Z
elseif(startIndex < 0) g}h0J%s
this.startIndex = 0; ovVU%2o1b
else{ -v&srd^
this.startIndex = indexes J#nEGl|a
v:b%G?o
[startIndex / pageSize]; >H! 2Wflm
} '1*MiFxKq
} S)h1e%f,
f
:v48y.Ij7s
publicint getNextIndex(){ jlZNANR3
int nextIndex = getStartIndex() + RmCR"~
~=Sr0+vV
pageSize; >X,6
if(nextIndex >= totalCount) M?97F!\U
return getStartIndex(); sk/Mh8z
else {[dqXG$v `
return nextIndex; 0eIR)#j*
} -z94>}Z=
<9vkiEo
publicint getPreviousIndex(){ ,;}RIcvQV
int previousIndex = getStartIndex() - u[@*}|uXM
umYdr'p!v
pageSize; Yzz8:n
if(previousIndex < 0) iBt5aUt
return0; B7C6Mau
else /xnhHwJm
return previousIndex; #{a <{HX
} 48VsHqG
C2T,1 =
} Z )I4U
sy?W\(x
hCrgN?Mz
7tQiKrhp
抽象业务类 "~6BC
java代码: 3m'6 cMQ
:yeTzIz]
8h=XQf6k0
/** r}w 9?s^rB
* Created on 2005-7-12 j--#vEW
*/ yO)Qg*r
package com.javaeye.common.business; =v}.sJ V?
g}7B0 yo
import java.io.Serializable; ){Y2TWW&0
import java.util.List; c4|.!AQ>
6 9Cxh
import org.hibernate.Criteria; rv[\2@}
import org.hibernate.HibernateException; go@}r<