Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ;p)gTQa
~u7a50
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 pM.>u/=X
pl'n
0L<l
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 V&[|%jm&
pvkru-i]
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 4WU
6CN
Zn&X
Uvdl
。 cy%^P^M
SkVW8n*s
分页支持类: ?;!l-Dy
-k")#1
java代码: & Z*&&
, En
D3
|
{- tCLkE
3
package com.javaeye.common.util; HtPasFrJ
UjUDP>iz.>
import java.util.List; R8?Xz5
Ez+.tbEA,
publicclass PaginationSupport { XoL9:s(m~
;}WdxWw4
publicfinalstaticint PAGESIZE = 30; V] <J^m8
@<r;>G
privateint pageSize = PAGESIZE; L:j;;9Sp{
Cz8=G;\
privateList items;
AI/xOd!a
9Iy>oV
privateint totalCount; d%\en&:la
5 o'V}
privateint[] indexes = newint[0]; (khjP,
?kISAA4x
privateint startIndex = 0; x)5#*Q
/5EM;Mx
public PaginationSupport(List items, int Z[[@O
>ouHR*
totalCount){ `gSqwN<x%
setPageSize(PAGESIZE); g;D
[XBp
setTotalCount(totalCount); tFO86 !ln
setItems(items); TlQu+w|
setStartIndex(0); gfR B
} WfL5.&
5W(G~m?jC6
public PaginationSupport(List items, int ok iI:
{?$-p%CF`8
totalCount, int startIndex){ Vd1.g{yPV
setPageSize(PAGESIZE); 0_J<=T?\"s
setTotalCount(totalCount); DgGGrV`
setItems(items); o!dTB,Molr
setStartIndex(startIndex); 3mIVNT@S9
} T&j_7Q\;vI
"at*G>+
public PaginationSupport(List items, int \J.PrE'(}
7&DhEI ^
totalCount, int pageSize, int startIndex){ &>XIK8*
setPageSize(pageSize); eZ8~t/8
setTotalCount(totalCount); ^~E?7{BL
setItems(items); !/[/w39D0o
setStartIndex(startIndex); #"jEc*&=
} ckHHD|
h}nceH0s3d
publicList getItems(){ mhv{6v
return items; k}(C.`.
} z
GhJ
hB]4Tn5H
publicvoid setItems(List items){ b%z4u0
this.items = items; ]X ,f
} 0B7cpw>_J
}lvD 5
publicint getPageSize(){ G];5'd~C;d
return pageSize; 1O"7%Pvw
} =$`EB
:<=A1>&8
publicvoid setPageSize(int pageSize){ U ]Ek5p
this.pageSize = pageSize; eZ'J,;
} s,!+wHv_8
?ey!wcv~
publicint getTotalCount(){ *G"L]Nq#
return totalCount; +]
s"* 'V$
} ^rO3B?_
0pYO-@E
publicvoid setTotalCount(int totalCount){ 2m7Z:b
if(totalCount > 0){ .'.#bH9K
this.totalCount = totalCount; cy%JJ)sf
int count = totalCount / _ +q.R
kC"lO'
pageSize; (U#4j 6Q
if(totalCount % pageSize > 0) A%qlB[!:
count++; Dl_y[9
indexes = newint[count]; Y]!8Ymuww@
for(int i = 0; i < count; i++){ I<PKwT/?
indexes = pageSize * -HutEbkjx
bL v_<\:m
i; J$JXY@mBSC
} }D02*s
}else{ zkHwoAD;t8
this.totalCount = 0; +nU"P
} 5v<X-8"
} +n_`*@SE
{ULy B$\-
publicint[] getIndexes(){ "^_9t'0
return indexes; lv\C(^mGq
} nK=-SQ
t6V@00M@
publicvoid setIndexes(int[] indexes){ k`[ L
this.indexes = indexes; u2%/</]h
} MY1s
XaOq &7
publicint getStartIndex(){ ig(dGKD\=9
return startIndex; Ss ;C1:
} cK6M8:KW
ZU\TA|
publicvoid setStartIndex(int startIndex){ mVUDPMyZ
if(totalCount <= 0) V bQ9o
this.startIndex = 0; }g6:9%ZMu
elseif(startIndex >= totalCount) QbA+\
this.startIndex = indexes )xwWig.
HMDQEd;
[indexes.length - 1]; 7v\K,P8
elseif(startIndex < 0) ?ra6Lo
this.startIndex = 0; YbjeM6#E
else{ BIyNiol$AJ
this.startIndex = indexes s2s}5b3
ZtG5vdf
[startIndex / pageSize]; 94Wf ]
} rN* ,U\q
} H%2Y8}
aM/sD=}
publicint getNextIndex(){ }H2<w-,+
int nextIndex = getStartIndex() + 5[NF
nW?DlECo?
pageSize; T
<J%|d .'
if(nextIndex >= totalCount) =73""ry
return getStartIndex(); U6SgV
8
else l{OU\
return nextIndex; Hp`Mp)1s
} 9;,_Qq
E5@U~|V[
publicint getPreviousIndex(){ #SWL$Vm>
int previousIndex = getStartIndex() - (KQAKEhD!
t<'-?B2g
pageSize; =fy~-FN_
if(previousIndex < 0) ,#;%ILF4%
return0; _c|aRRW
else "7Qc:<ww
return previousIndex; 0{u31#0j
} ^]Mlkd:
'uAH, .B
} i&KD)&9b#
z=q
qgTN %%"~
>9KQWeD
抽象业务类
&}sC8,Sr
java代码: r2,AZ+4FP
Sg$14B
Mx&
P^#B3
/** GS1Vcav<
* Created on 2005-7-12 Q5R7se_
*/ +Fu=9j/,j
package com.javaeye.common.business; '&_<!Nv3
'&