Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 tQ0iie1Ys
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 f$#--*
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据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 %N+8K
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 *+|D8xp
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分页支持类: ,dn6z#pb+
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java代码: 4@ EY+p
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package com.javaeye.common.util; p1~u5BE7O
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import java.util.List; z }?*1c
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publicclass PaginationSupport { PNy)TqdRS
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publicfinalstaticint PAGESIZE = 30; @CGci lS=
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privateint pageSize = PAGESIZE; |NuX9!S
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privateList items; Su"9`
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privateint totalCount; R\DdU-k
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privateint[] indexes = newint[0]; <X@XbM
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privateint startIndex = 0; uu0"k<Tp
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public PaginationSupport(List items, int udw>{3>
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totalCount){ JF{yhx,+p
setPageSize(PAGESIZE); abog\0
setTotalCount(totalCount); %#5\^4$z|N
setItems(items); v9?hcJ=
setStartIndex(0); `N<6)MX3>g
} J-iFAKN
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public PaginationSupport(List items, int $ glt%a
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totalCount, int startIndex){ p@B/S(Xi
setPageSize(PAGESIZE); nE"##2X
setTotalCount(totalCount); hG1\
setItems(items); %{M_\Ae#
setStartIndex(startIndex); IQz"FH?
} {jyI7r#X
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public PaginationSupport(List items, int `Wc"Ix0
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totalCount, int pageSize, int startIndex){ ai,\'%N
setPageSize(pageSize); &8=wkG%
setTotalCount(totalCount); JSXJlau
setItems(items); %@C(H%obWd
setStartIndex(startIndex); V2Iqk]V%y
} ++>HU{
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publicList getItems(){ KMs[/|HX\
return items; #kGgzO
} U`)\|\NY
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publicvoid setItems(List items){ ?+3vK=Rf}
this.items = items; +#* F"k(
} .\Z/j
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publicint getPageSize(){ 1co;U
return pageSize; R7'6#2y
} x}^:Bs+j
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publicvoid setPageSize(int pageSize){ y4N8B:j%
this.pageSize = pageSize; ]|H`?L
} K)ZW1d;
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publicint getTotalCount(){ 11"- taWj
return totalCount; /#<R
} sxG8jD
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publicvoid setTotalCount(int totalCount){ R_DstpsT
if(totalCount > 0){ 1w`]2
this.totalCount = totalCount; /z=xEnU#
int count = totalCount / 2wCSjAWWh(
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pageSize; EN,PI~~F
if(totalCount % pageSize > 0) OBnf5*eJ
count++; kjj4%0"
indexes = newint[count]; st_.~m!/
for(int i = 0; i < count; i++){ \*a7o GyH>
indexes = pageSize * E=*82Y=B
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} kv!QO^;^Y
}else{ ul@swp
this.totalCount = 0; 96(3ilAt
} g3 6:OK"
} cVV @MC
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publicint[] getIndexes(){ Pv#Oea?
return indexes; "=0(a)01p:
} ?IN'Dc9&%-
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publicvoid setIndexes(int[] indexes){ :CeK
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this.indexes = indexes; &b__/o
} nE&`~
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publicint getStartIndex(){ 9mmkFaBQ
return startIndex; KD<smwXjG
} 4 ZUTF3
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publicvoid setStartIndex(int startIndex){ =%)Y,
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if(totalCount <= 0) =~D QX\
this.startIndex = 0; 5n0B`A
elseif(startIndex >= totalCount) gR\z#Sg
this.startIndex = indexes aAbK{=/y_!
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[indexes.length - 1]; cko^_V&x
elseif(startIndex < 0) wB(X(nr
this.startIndex = 0; !&eKq?P{j
else{ 7Mj:bm&9
this.startIndex = indexes o){\qhLp
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[startIndex / pageSize]; *2T"lpl
} G (3wI}
} CyV2=o!F w
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publicint getNextIndex(){ ufF>I
int nextIndex = getStartIndex() + L*8U.{NY
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pageSize; t?aOZps
if(nextIndex >= totalCount) s+-V^{Ht
return getStartIndex(); {i^F4A@=Z
else $eq*@5B
return nextIndex; c:[8ng 2v
} R<<