Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 5eLPn
8B+uNN~%]
detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 @e7+d@O<
IviWS84
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 Pm_=
21[F%,{.),
自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 IW#(ICeb
#n"/9%35f`
。 ?xet:#R'
Txh;r.1e
分页支持类:
jZ;T&s
3:(`#YY
java代码: rij[ZrJ
4Uiqi{}
meWAm?8RI
package com.javaeye.common.util; ]3C8
V_pBM
import java.util.List; Vh8uE
5-*]PAC
publicclass PaginationSupport { 9wC; m :
k
y98/6
publicfinalstaticint PAGESIZE = 30; c>Se Onf
;GAYcVB
privateint pageSize = PAGESIZE; W#[!8d35$
f/x "yUq
privateList items; 1 W u
SMyg=B\x?7
privateint totalCount; p1nA7;B-m
2&m7pcls
privateint[] indexes = newint[0]; L7- nPH
nM`) `!/
privateint startIndex = 0; A
M2M87{t
-,dQ&Qf?
public PaginationSupport(List items, int D|o@(V
%8Z,t+'
totalCount){ qHCs{ u
setPageSize(PAGESIZE); X3[!xMij
setTotalCount(totalCount); :dzU]pk%0
setItems(items); :m\KQ1sq
setStartIndex(0); u_BSWhiW
} hqPn~Tq
q*OKA5
public PaginationSupport(List items, int YYHm0pc
z@i4dC
totalCount, int startIndex){ Q\76jD`m\
setPageSize(PAGESIZE); * 5n:+Tw(
setTotalCount(totalCount); ^U}0D^jDeE
setItems(items); o[#a}5Y
setStartIndex(startIndex); >gl.(b25C
}
`cpcO
ZAZCvN@5
public PaginationSupport(List items, int eW0=m:6
/Hmo!"W`
totalCount, int pageSize, int startIndex){ 9K|lU:,
setPageSize(pageSize); }U9jsm
setTotalCount(totalCount); N6;Z\\&0^q
setItems(items); j,XKu5w)Oi
setStartIndex(startIndex); {rZ"cUm
} )^TQedF
+QX>:z
publicList getItems(){ y~7lug
return items; TpgBS4q
} &pm{7nH
` qTY
publicvoid setItems(List items){ >9`ep7
this.items = items; m+vEs,W.
} i7V~LO:gq
Ao T 7sy7
publicint getPageSize(){ L])w-
return pageSize; jhv1 D'>6
} cqx1NWlY
}=a4uCE
publicvoid setPageSize(int pageSize){ `Ny8u")=
this.pageSize = pageSize; 1 1CJT
} s? k[_|)!
"44?n <1
publicint getTotalCount(){ &J$5+"/;X
return totalCount; Wi^rnr'Ss
} I?>T"nV +'
)\vHIXnfJ1
publicvoid setTotalCount(int totalCount){ {R;M`EU>
if(totalCount > 0){ yU,xcq~l
this.totalCount = totalCount; &F_rg,q&_
int count = totalCount / =joXP$n^
VU9P\|c@<
pageSize; Cw $^w
if(totalCount % pageSize > 0) \F~Cbj+'Nu
count++; G4' U;
indexes = newint[count]; cg00t+
for(int i = 0; i < count; i++){ YS~t d+*
indexes = pageSize * I!gj; a?R
9
w1ONw8v
i; PU5mz.&0'
} A@(h!Cq
}else{ % Au$E&sj
this.totalCount = 0; aa8Qslm
} bK\WdG\;
} b6&NzUt34V
!"%sp6Wc
publicint[] getIndexes(){ mthl?,I|
return indexes; o'/C$E4W
} ;bZ*6-\!-
1Uk~m
publicvoid setIndexes(int[] indexes){ NxO^VUD
this.indexes = indexes; <0)ud)~u
} Ch"8cl;Fm
8? Wxd65)
publicint getStartIndex(){ ]fo^43rn{
return startIndex; 8G&+
} 3]n@c?lw
_`i%9Ad.4
publicvoid setStartIndex(int startIndex){ zI_GdQNfN
if(totalCount <= 0) @jSbMI
this.startIndex = 0; s}9tK(4v
elseif(startIndex >= totalCount) dqA[|bV
this.startIndex = indexes ggc?J<Dv
w/5^R
[indexes.length - 1]; D"4&9"C U
elseif(startIndex < 0) V9u\;5oL
this.startIndex = 0; 9zYiG3 d
else{ NjN?RB/5
this.startIndex = indexes L8wcH
@[tV_Z%,b
[startIndex / pageSize]; 8sIA;r%S
} AAq=,=:R<
} F(9
Y/UXH
.*-w UBr
publicint getNextIndex(){ B36puz 0{
int nextIndex = getStartIndex() + &4&33D
.#55u+d,
pageSize; 4z%#ZIy3
if(nextIndex >= totalCount) rn:zKTyhw
return getStartIndex(); !L.
K)9I
else dP7Vsa+
return nextIndex; F4E3c4
81
} kEhm'
ct4 [b|
publicint getPreviousIndex(){ i4zV(
int previousIndex = getStartIndex() - Qy5Os?9"
5%?b5(mnD
pageSize; k\sM;bCv7
if(previousIndex < 0) Nv?-*&