Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 jE0oLEg&
cSt)Na~C
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 < $zJi V
qO{z{@jo55
据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 SVU>q:ab
<8WFaP3,
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 x/,;:S
x80IS:TP
。 R+LKa Z
*'((_NZ>
分页支持类: |=;hQ2HyF
^s)`UZ<C=
java代码: u=:f%l
e:O,$R#g
,YD7p= PY
package com.javaeye.common.util; _xKn2 ?d8g
_LJF:E5L
import java.util.List; MblRdj6
#eW
T-m
publicclass PaginationSupport { kj6:P$tH
hYoUZ'4
publicfinalstaticint PAGESIZE = 30; .UPh
wnS,Jl
privateint pageSize = PAGESIZE; ;UQza ]i
=:rg1wo"c
privateList items; oC5h-4~
HzTmNm)
privateint totalCount; 868X/lL
@R&d<^I&M
privateint[] indexes = newint[0]; l<6GZ
ceUe*}\cr
privateint startIndex = 0; XPd mz !,b
nCY kUDnZ
public PaginationSupport(List items, int P%2v(
TIGtX]`
totalCount){ `
-_! %m/
setPageSize(PAGESIZE); 'rB%a<
setTotalCount(totalCount); (=j;rfvP
setItems(items); UWT%0t_T
setStartIndex(0); ofB:7
} $INB_/RE
&jJu=6 U
B
public PaginationSupport(List items, int kX8C'D4 gX
c!IZLaVAr9
totalCount, int startIndex){ `nF SJlr&
setPageSize(PAGESIZE); /2p*uv}IP
setTotalCount(totalCount); !Gmnck&+
setItems(items); 2>o[
setStartIndex(startIndex); | N/d}
} <K0epED
L-|l$Ti"
public PaginationSupport(List items, int xO|r<R7d7
hU$aZ
totalCount, int pageSize, int startIndex){ )ce 6~
setPageSize(pageSize); I[?\Or
setTotalCount(totalCount); w9'>&W8T
setItems(items); OHndZ$'fI
setStartIndex(startIndex); +4 k=Y
} {;{U@Z
_/1/{
publicList getItems(){ A|ZT;\
return items; -`faXFW'
} |^Iox0A
7${<u 0((!
publicvoid setItems(List items){ i.E2a)
this.items = items; e"hfeNphz
} AQ)gj$
m3
6*Z7JiQ0
publicint getPageSize(){ A4"TJZBg}
return pageSize; =mYf]
PIX
} BgXZr,?
#QwkRzVoy
publicvoid setPageSize(int pageSize){ Z!g6uV+.5
this.pageSize = pageSize; *^-AOSVt,
} VlV
X
lsax.uG5x
publicint getTotalCount(){ z|>TkCW6
return totalCount; "W(D0oy
} Em!- W5*s
&qbEF3p^@
publicvoid setTotalCount(int totalCount){ it}h8:^<
if(totalCount > 0){ Wep^He\:
this.totalCount = totalCount; 'maX
int count = totalCount / -_ 9k+AV
\WiCI:
pageSize; ~:Rbd9IB
if(totalCount % pageSize > 0) YYT;a$GTo
count++; 'APx
indexes = newint[count]; Ll|-CY $
for(int i = 0; i < count; i++){ BeUyt
indexes = pageSize * RZHfT0*jL
TdPd8ig8{
i; cM%?Ot,mK"
} 9 :2Bt <q
}else{ Ll
KO(Q{"
this.totalCount = 0; FxlH;'+Q
} A}lxJ5h0
} UV2W~g
,NGHv?.N
publicint[] getIndexes(){ ?-j/X6(\(
return indexes; tl_3 %$s
} 7{<v$g$
<{W{
Y\_A>
publicvoid setIndexes(int[] indexes){ q|ce7HnK
this.indexes = indexes; +mrLMbBiD
} $q\"d?n
neU=1socJ
publicint getStartIndex(){ wXUR9H|0(
return startIndex; '#c#.O
} Q>$B.z
at?I @By
publicvoid setStartIndex(int startIndex){ O\Huj=
if(totalCount <= 0) 8oE`>Y
this.startIndex = 0; 76D$Nm
elseif(startIndex >= totalCount) 'ayb`
this.startIndex = indexes YXp\C"~g
W/UA%We3+L
[indexes.length - 1]; 8)S)!2_h
elseif(startIndex < 0) 7> f2P!:
this.startIndex = 0; "" UyfC[
else{ rfonM~3?'
this.startIndex = indexes )M<+?R$];
8Ay7I
[startIndex / pageSize]; x:-NTW
-g
} /rpr_Xw}
} ,6]ID1o:y
#;8)UNc)}
publicint getNextIndex(){ :? )!yI
int nextIndex = getStartIndex() + L--
t(G
9<3( QR
pageSize; $*eYiz3Ue
if(nextIndex >= totalCount) 4P#jMox
return getStartIndex(); A_TaXl(
else s O#cJAfuu
return nextIndex; U LS>v
} {-I+
<6;M\:Y*T
publicint getPreviousIndex(){ $Z;8@O3
int previousIndex = getStartIndex() - {*;8`+R&
Y[e.1\d'
pageSize; &/[MWQ
if(previousIndex < 0) N?m)u,6-l
return0; z#!<[**&
else ]0'cdC
return previousIndex; te[uAJ1 N
} ga|<S@u?}
m|fcWN[
} 2W0nA t
P]m{\K
s YTJ^K d
KK 7}q<&i
抽象业务类 1^^{;R7N
java代码: GI{EP&