Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 mVT[:a3
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 q+XU Cnv
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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 gO]8hLT
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 +^4HCyW
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分页支持类: 8%b-.O:_$
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java代码: o;pJjC]
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package com.javaeye.common.util; YD5mJ[1t"2
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import java.util.List; }jNVR#D:
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publicclass PaginationSupport { U
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publicfinalstaticint PAGESIZE = 30; "
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privateint pageSize = PAGESIZE; NRe=O*O
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privateList items; 6N.MCB^
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privateint totalCount; O+~@S~
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privateint[] indexes = newint[0]; o~VZ%B
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privateint startIndex = 0; p.vxrk`c
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public PaginationSupport(List items, int ~A*$+c(
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totalCount){ SCq3Kh
setPageSize(PAGESIZE); ZVCa0Km
setTotalCount(totalCount); D#X&gE
setItems(items); (i]0IYMXy*
setStartIndex(0); /J&_ZDNV~
} LT/*y=
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public PaginationSupport(List items, int _2<d6@}
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totalCount, int startIndex){ Ntpw(E<$f
setPageSize(PAGESIZE); &LhR0A
setTotalCount(totalCount); 9]a!1
setItems(items); 0}$R4<"{Y>
setStartIndex(startIndex); H$xUOqL
} v+d? #^
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public PaginationSupport(List items, int -qB{TA-.\
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totalCount, int pageSize, int startIndex){ 3MHByT%
setPageSize(pageSize); R=L-Ulhk
setTotalCount(totalCount); ER<Z!*2
setItems(items); twql)lbx
setStartIndex(startIndex); qB3=wFI
} @P<Mc)o^
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publicList getItems(){ q&: t$tSS
return items; !f#[4Xw
} b*cVC^{Dy
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publicvoid setItems(List items){ B|-W
this.items = items; 8?t}S2n2
} %r:Uff@
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publicint getPageSize(){ = /=?l
return pageSize; /6#i$\ j
} <{k8 K6
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publicvoid setPageSize(int pageSize){ r59BBW)M
this.pageSize = pageSize; g|x*sZR~Y
} #lx(F3
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publicint getTotalCount(){ z;EDyd,O>
return totalCount; 5f_1 dn
} ]"U/3dL5
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publicvoid setTotalCount(int totalCount){ /Au7X'}
if(totalCount > 0){ 3>k?-%"
this.totalCount = totalCount; /m+.5Qz9)@
int count = totalCount / dqw0ns.2
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pageSize; {o8K&XU#&t
if(totalCount % pageSize > 0) !]!J"!xg*
count++; Qy|6A@
indexes = newint[count]; u S{WeL6%
for(int i = 0; i < count; i++){ c4FU@^Vv
indexes = pageSize * p~Mw^SN'
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} 6Vy4]jdT5
}else{ wZ~eE'zx+
this.totalCount = 0; nbSu|sX~r5
} HmRmZ3~
} 3aEO9v,n
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publicint[] getIndexes(){ Cq<k(TKAX
return indexes; Zs}EGC~&
} )|L#i2?:
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publicvoid setIndexes(int[] indexes){ d{RMX<;G
this.indexes = indexes; 1IZTo!xi
} OG2&=~hOz-
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publicint getStartIndex(){ LKu
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return startIndex; #:}mi;{
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publicvoid setStartIndex(int startIndex){ 9I*`~il>{
if(totalCount <= 0) `'/1Ij+
this.startIndex = 0; >twog}%
elseif(startIndex >= totalCount) 6g%~~hX
this.startIndex = indexes ^
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[indexes.length - 1]; bODyJ7=[
elseif(startIndex < 0) z irnur1
this.startIndex = 0; #^bn~
else{ 2p8}6y:}7
this.startIndex = indexes ,M$J
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[startIndex / pageSize]; "AHuq%j
} cW\Y1=Gv|
} &%` 0&y
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publicint getNextIndex(){ SI/p8 ^
int nextIndex = getStartIndex() + T+)#Du
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pageSize; TDHS/"MbA7
if(nextIndex >= totalCount) hZeF? G)L'
return getStartIndex(); 4F?O5&329i
else >7nOR
return nextIndex; >Ms_bfSK
} @7OE:& #V
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publicint getPreviousIndex(){ $C9['GGR
int previousIndex = getStartIndex() - D 13bQ&\B-
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pageSize;
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if(previousIndex < 0) dmUa\1g#
return0; khfWU
else oD~q/04!
return previousIndex; $1;@@LSw
} 9Gk#2
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} _f<#+*y
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