Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 g/l:q&Q<
x?A<X2
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 *Dq ++
| )
cJ
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 7L:Eg
dHAT($QG
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 `uLr^G=;
#Rfcp!
。 IlO,Ql
6jm?d"9
分页支持类: Fnk@)1
QSzht$8
java代码: 3st?6?7|
gP|-A`y
,gpEXUp\
package com.javaeye.common.util; ;`xCfOY(
RIUJX{?
import java.util.List; NKEmY-f;
{d#sZT
publicclass PaginationSupport { C}uzzG6s
4dN <B U
publicfinalstaticint PAGESIZE = 30; ml|FdQ
9BlpqS:P&
privateint pageSize = PAGESIZE; :!cK?H$+
>Mh\jt\
privateList items; fp(zd;BSQ
k(7Q\JKE
privateint totalCount; rS!@AgPLE
*MlEfmB(
privateint[] indexes = newint[0]; }oiNgs/N
e*`ht+
privateint startIndex = 0; gREk,4DAv
s5G`?/
public PaginationSupport(List items, int g-!
*@^@7`W
totalCount){ cGm?F,/`
setPageSize(PAGESIZE); [;yH.wn#5
setTotalCount(totalCount); V=fh;p
setItems(items); 9D`K#3}
setStartIndex(0); OqRRf
} "~.4z,ha
Yh^8
!
public PaginationSupport(List items, int RiAMW|M"C
kf<c[ su
totalCount, int startIndex){ 0=U|7%dOL
setPageSize(PAGESIZE); A4rMJ+!5
setTotalCount(totalCount); a_0I)'
?
setItems(items); w2s06`g
setStartIndex(startIndex); u^MRKLn
} 0#=xUk#LP`
7f
k)a
public PaginationSupport(List items, int ~a4Y8r
}pf|GdL
totalCount, int pageSize, int startIndex){ pl[@U<8aw
setPageSize(pageSize); XUVj<U
setTotalCount(totalCount); 31 <0Nw;l
setItems(items); S"?fa)~
setStartIndex(startIndex); N<b2xT
} IUEpE9_
L58#ri=
publicList getItems(){ lw~
V
return items; Xm|~1 k_3
} du~V=%9
h*40jZ
publicvoid setItems(List items){ 4sORp^t'Q
this.items = items; rp"5176
} NZZy^p&O
JF~9efWe>
publicint getPageSize(){ 6jBi?>[I
return pageSize; o
o'7
} |/xx**?
ZI1]B944ni
publicvoid setPageSize(int pageSize){ e-v|
this.pageSize = pageSize; #Ff8_xhP 2
} <%d!Sk4
xk/-TXB
0
publicint getTotalCount(){ {irc~||4
return totalCount; &b^~0Z
} l"+8>Mm
_()1"5{
publicvoid setTotalCount(int totalCount){ g-UCvY
I
if(totalCount > 0){ ?ZGsh7<k
this.totalCount = totalCount; U$OI]Dd9
int count = totalCount /
7FY2a
R ai
04
pageSize; +C~d;p
if(totalCount % pageSize > 0) (p12=EB<
count++; G{4s~Pco[Q
indexes = newint[count]; g"|>^90
for(int i = 0; i < count; i++){ FP=27=
indexes = pageSize * +'5I8FE-
rOE:
ap|KL
i; *k8?$(
} AIn/v`JeX
}else{ EZjtZMnj
this.totalCount = 0; h/{1(c}
} w< Xwz`O
} JttDRNZAU
Q 318a0
publicint[] getIndexes(){ eBxm
return indexes; 1|"BpX~D
} x$o^;2Z
b FajK;
publicvoid setIndexes(int[] indexes){ _ {wP:dI "
this.indexes = indexes; )kI**mI}
} 3TCRCz
Ic_NQ<8
publicint getStartIndex(){ >l AtfN='
return startIndex; WG6
0
} 2YKa <?_
7M7Ir\d0lp
publicvoid setStartIndex(int startIndex){ IKPGqoM
if(totalCount <= 0) S :}"gwFM
this.startIndex = 0; mgVYKZWL-i
elseif(startIndex >= totalCount) $57b.+2n
this.startIndex = indexes p$|7T31 *
6*>Lud
[indexes.length - 1]; @j}%{Km]Y
elseif(startIndex < 0) MaHP):~
this.startIndex = 0; ;9h;oB@
else{ %EVgS F!r
this.startIndex = indexes hPNMp@Nm6
#I453
[startIndex / pageSize]; n }A!aC
} Mhti
} :zKMw=
4L8hn4F
publicint getNextIndex(){ G'G8`1Nj
int nextIndex = getStartIndex() + /<8y>
qT(6T P
pageSize; D 6y,Q
if(nextIndex >= totalCount) 0]
return getStartIndex(); ^c.D&