Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 Hf4_zd
.W]k8N E
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 /@:X0}L
V?XQjH1X
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 HZ3;2k
!}Xoqamm
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 -
2)k!5X=
Q4XlYgIV2A
。 ElO|6kOBYG
=.`\V]
分页支持类: ns~]a:1yh
N~/'EaO
java代码: 8Lgt
bjVk9XvH6
~'M<S=W
package com.javaeye.common.util; ("U<@~
FJn-cR.n
import java.util.List; ?]><#[?'L
suE K;Bk9
publicclass PaginationSupport { ,Zmjw@w
h$5[04.Q
publicfinalstaticint PAGESIZE = 30; >pu4 G+M
)rEl{a
privateint pageSize = PAGESIZE; 2^[dy>[y0
B:h<iU:'D
privateList items; 8 a]'G)(ts
5 `1
privateint totalCount; B[8bkFS>]
mZ71_4X#
privateint[] indexes = newint[0]; O9daeIF0#
WW:G(
\`
privateint startIndex = 0; o`f^ m
Vn5T Jw
public PaginationSupport(List items, int [9sEc
A}ZZQ
totalCount){ g8O6
b
setPageSize(PAGESIZE); .B]l@E-u
setTotalCount(totalCount); ||hQ*X<m>
setItems(items); 0+SDFh
setStartIndex(0); T'p L&@,Q
} qfsPX6]
.D@J\<,+l
public PaginationSupport(List items, int yzN[%/
F! =l
r
totalCount, int startIndex){ 3(c-o0M
setPageSize(PAGESIZE); /\%<VBx ?q
setTotalCount(totalCount); '3S~QN
setItems(items); %u!=<yn'
setStartIndex(startIndex); d-b04Q7DQ
} 3}nk9S:jr
{ b$"SIg1E
public PaginationSupport(List items, int uzdPA'u
<>6j>w_|
totalCount, int pageSize, int startIndex){ J+/}m}bx
setPageSize(pageSize); u%C oo
setTotalCount(totalCount); SES.&e|!6
setItems(items); R!dC20IMvH
setStartIndex(startIndex); BpIyw
} D[+LU(
`#$}P;W
publicList getItems(){ sqKx?r72
return items; r,;ca6>5H
} AERJ]$\
f=^xU
P
publicvoid setItems(List items){ 7Bj,{9^aJ
this.items = items; V}V->j*
} yz68g?"
u=0O3-\h
publicint getPageSize(){ (p2`ofj
return pageSize; Ic(qA{SM
} c~hH
7/v
_r-LX"
publicvoid setPageSize(int pageSize){ G|,&V0*
this.pageSize = pageSize; v +4v
} ZeV@ X
.\caRb[
publicint getTotalCount(){ g@#he95 }
return totalCount; 3%*igpj\)
} )M0`dy{1
[-\ Y?3
publicvoid setTotalCount(int totalCount){ jC&fnt,O
if(totalCount > 0){ t/[lA=0 )2
this.totalCount = totalCount; ^
9+
Qxv
int count = totalCount / TKnWhB/J
]({-vG\m
pageSize; 3l=q@72
if(totalCount % pageSize > 0) KSs1EmB
count++; Gj?Zbl <
indexes = newint[count]; <%^/uS
for(int i = 0; i < count; i++){ c+l1l0BA
indexes = pageSize * d.+*o
5[;[ Te9=S
i; (}b~}X9
} ~IZ-:?+S^
}else{ 4r$#-
this.totalCount = 0; !*v%
s
} 4$R!)
} ,g?ny<#o
$^Xxn.B9
publicint[] getIndexes(){ =b%f@x_U1
return indexes; ]\yB,
} VVQ~;{L
Qm[((6}
publicvoid setIndexes(int[] indexes){ 7(2}Vs!5
this.indexes = indexes; |it*w\+M
} -o+t&m
Y@ v][Q
publicint getStartIndex(){ "[ LUv5
return startIndex; h.tj8O1
} eP~3m
3.YH7rN
publicvoid setStartIndex(int startIndex){ c^= q(V
if(totalCount <= 0) U,2OofLM
this.startIndex = 0; U)kyq
elseif(startIndex >= totalCount) W
$D 34(
this.startIndex = indexes Kvg=7o
r)S:=Is5
[indexes.length - 1]; 1le9YL1_g
elseif(startIndex < 0) W,~*pyLdO
this.startIndex = 0; bpsyO>lx/
else{ P{dR
pH|
this.startIndex = indexes HVvm3qu4
N,w6
[startIndex / pageSize]; il>+jVr
} ~jw:4sG
} xd3mAf
{W?!tD43"
publicint getNextIndex(){ s-*N_Dv
int nextIndex = getStartIndex() + .:H'9QJg
Vc'p+e|(
pageSize; ;s3@(OnjZ
if(nextIndex >= totalCount) 08:K9zr
return getStartIndex(); M}jl\{
else f]1 $`
return nextIndex; [vtDtwL
} fXevr `
{$ N\@q@v~
publicint getPreviousIndex(){ C|}yE;*a
int previousIndex = getStartIndex() - vasw@Uto)
NHZMH!=4:n
pageSize; lU|ltnU
if(previousIndex < 0) h1>.w
pr
return0; w8o?wx*
else &[\zs&[@y
return previousIndex; .aZB?MW
} Nt+UL/1]
pnz@;+f
} 5YZ\@<|rH
j+<!4 0#
k'$7RjCu
PmId #2f
抽象业务类 qyyLU@hd
java代码: /x-tl)(s=
o\j<EQb.
@TKQ_7BcB
/** 2b
{Y1*
* Created on 2005-7-12 6O5E4=
*/ @Ng q+uXm
package com.javaeye.common.business; (I`<;
kGq<Zmy|
import java.io.Serializable; /9y'UKl7[
import java.util.List; fv3)#>Dgp>
n O}x,sG2'
import org.hibernate.Criteria; x^F2Ywp%
import org.hibernate.HibernateException; nDC5/xB
import org.hibernate.Session; p|Fhh\,*`X
import org.hibernate.criterion.DetachedCriteria; ZG)C#I1;O
import org.hibernate.criterion.Projections; ;LT#/t)}<
import J! eVw\6
Iq":
U
org.springframework.orm.hibernate3.HibernateCallback; 7L:R&W6
import = &aD!nTx
P3XP=G`E
org.springframework.orm.hibernate3.support.HibernateDaoS CtDS lJ
UE\@7
upport; **YNR:#Y
h$zPQ""8
import com.javaeye.common.util.PaginationSupport; e$(i!G)
M/sqOhg
public abstract class AbstractManager extends 5p{tt;9[
cfe[6N
HibernateDaoSupport { l 0b=;^6
{78*SR
privateboolean cacheQueries = false; <