Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 [#Y' dFQ
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 yhpz5[AuO
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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 !nd*W"_gQ/
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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 @5.e@]>ZM
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分页支持类: 1svi8wh
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java代码: \=;uu_v$
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package com.javaeye.common.util; ;#1Iiuh
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import java.util.List; tu0aD%C
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publicclass PaginationSupport { e4`uVq5
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publicfinalstaticint PAGESIZE = 30; d;7uFh|o
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privateint pageSize = PAGESIZE; s
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privateList items; wJeG(h
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privateint totalCount; S{#cD1>.
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privateint[] indexes = newint[0]; 8 TiG3
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privateint startIndex = 0; -oyO+1V
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public PaginationSupport(List items, int HpVjee
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totalCount){ D\1k.tI
setPageSize(PAGESIZE); >\2:\wI
setTotalCount(totalCount); kL>d"w
setItems(items); UG;Y^?Ppe5
setStartIndex(0); x;LzG t:w
} ?+0GfIV
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public PaginationSupport(List items, int >?lOE
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totalCount, int startIndex){ C[uOReo
setPageSize(PAGESIZE); kW@,$_cK
setTotalCount(totalCount); w%y\dIeI'
setItems(items); 8X$LC
setStartIndex(startIndex); k|YWOy@D~
} yClx` S(
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public PaginationSupport(List items, int .]x2K-Sf
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totalCount, int pageSize, int startIndex){ j(rL
setPageSize(pageSize); '?QuJFki
setTotalCount(totalCount); @+LfQY
setItems(items); $t~@xCi]S
setStartIndex(startIndex); 0d^Z uTN
} l;A,0,i
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publicList getItems(){ l?8M
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return items; 5J2=`=FK
} Ge+0-I6Ju
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publicvoid setItems(List items){ 4|?{VQ
this.items = items; Oakb'
} $wB^R(f@
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publicint getPageSize(){ C?4JXW
return pageSize; d[D&J
} S6d`ioi-
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publicvoid setPageSize(int pageSize){ uC3:7
this.pageSize = pageSize; SOZPZUUEJ
} errH>D~
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publicint getTotalCount(){ ao" %WX
return totalCount; BYrZEVM9
} :1ecx$
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publicvoid setTotalCount(int totalCount){ mmXm\]r>4
if(totalCount > 0){ +|iYg/2
this.totalCount = totalCount; AK!hK>u`
int count = totalCount / }n_p$g[Nj/
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pageSize; wC_l@7t
if(totalCount % pageSize > 0) epHJ@ W@#
count++; nlYR-.
indexes = newint[count]; p?D2)(
for(int i = 0; i < count; i++){ I){\0vb@
indexes = pageSize * + @9.$6N
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} $?G"GQ!.
}else{ g>rp@M
this.totalCount = 0; l%ayI
} $rF=_D6
} )tHaB,
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publicint[] getIndexes(){ 7hW+T7u?
return indexes; b-U
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} =L|tp%!
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publicvoid setIndexes(int[] indexes){ aNn"X y\ k
this.indexes = indexes; /M;#_+VK<
} aI(7nJ=R
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publicint getStartIndex(){ H=*5ASc
return startIndex; im} ?rY
} {Gq*e/
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publicvoid setStartIndex(int startIndex){ oI:o"T77sA
if(totalCount <= 0) =*qD4qYA
this.startIndex = 0; &6 s) X
elseif(startIndex >= totalCount) `@d<n
this.startIndex = indexes 8$s9(n-_Y
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[indexes.length - 1]; znJhP}(
elseif(startIndex < 0) /={Js*
this.startIndex = 0; j*"3t^|-
else{ &8&d3EQ
this.startIndex = indexes }G o$
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[startIndex / pageSize]; Z=B_Ty
} 1g##sSa6
} b`yZ|j'ikd
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publicint getNextIndex(){ b*a2,MiM
int nextIndex = getStartIndex() + |Fm6#1A@
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