Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 =)QtE|p,77
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 NEp
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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 d+DdDr
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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 Zfwhg4G~
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分页支持类: f0"N
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java代码: ;6+e !h'1
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package com.javaeye.common.util; 5@ c/,6l
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import java.util.List; #WE"nh9f|z
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publicclass PaginationSupport { ct o+W}k
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publicfinalstaticint PAGESIZE = 30; w2 %u;D%
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privateint pageSize = PAGESIZE; }enS'Fpf`
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privateList items; "&9L
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privateint totalCount; Jr2x`^aNO
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privateint[] indexes = newint[0]; $4YyZ!_.@
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privateint startIndex = 0; Q5K<ECoPk
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public PaginationSupport(List items, int t?&@bs5~g
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totalCount){ sWtT"7>x
setPageSize(PAGESIZE); 7tZvz `\
setTotalCount(totalCount); 1VXyn\
setItems(items); +,8j]<wpo
setStartIndex(0); b\
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} yZHh@W4v
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public PaginationSupport(List items, int lRO7 Ae
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totalCount, int startIndex){ l( Y
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setPageSize(PAGESIZE); 4k7
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setTotalCount(totalCount); fS@V`"O6
setItems(items); /Ko{S_3<I
setStartIndex(startIndex);
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} T{A5,85
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public PaginationSupport(List items, int |$>ZGs#
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totalCount, int pageSize, int startIndex){ `S)*(s?T
setPageSize(pageSize); sLHUQ(S!
setTotalCount(totalCount); (Ci{fY6`
setItems(items); !<EQVqj6
setStartIndex(startIndex); pwIu;:O!?
} LvM;ZfAEv
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publicList getItems(){ BI|BfO%F$j
return items; 1K&_t
} dGc<{sQzB
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publicvoid setItems(List items){ B)L=)N
this.items = items; 31cC*
} J 7/)XS
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publicint getPageSize(){ isF
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return pageSize; *X%dg$VcV
} bjq+x:>
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publicvoid setPageSize(int pageSize){ U@'F9UB`
this.pageSize = pageSize; 3oo Tn-`{
} i!nPiac
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publicint getTotalCount(){ +t8{aaV
return totalCount; pBR9)T\n
} dv7IHUFf
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publicvoid setTotalCount(int totalCount){ H?H(=
if(totalCount > 0){ bP+b~!3
this.totalCount = totalCount; ;$FpxurX
int count = totalCount / hQFF%xl
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pageSize; ZC!GKWP2
if(totalCount % pageSize > 0) ^q@6((O
count++; )@hG #KMK
indexes = newint[count]; _T^+BUw
for(int i = 0; i < count; i++){ 12olVTuw
indexes = pageSize * Cg]Iz<<bE
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} e/J|wM9Ak
}else{ x$gVEh*k
this.totalCount = 0; lFZ}.
} ~N!-4-~p
} WGC'k
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publicint[] getIndexes(){ 3W#f
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return indexes; ",Ge:\TR=
} uG:xd0X+W
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publicvoid setIndexes(int[] indexes){ :enmMB#%
this.indexes = indexes; ? CabVj-r
} OZCbMeB{+J
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publicint getStartIndex(){ xlHC?d0}
return startIndex; 3[ T<pAZ
} ?c7}
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publicvoid setStartIndex(int startIndex){ jWE?$r"
if(totalCount <= 0) sfUKH;xC
this.startIndex = 0; oBpoZ @[Z
elseif(startIndex >= totalCount) I `I+7~t
this.startIndex = indexes $TK<~3`
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[indexes.length - 1]; "I
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elseif(startIndex < 0) ;5.S"
this.startIndex = 0; M~SbIk<#a<
else{ wVMR&R<t
this.startIndex = indexes @TqqF:c7
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[startIndex / pageSize]; qVe&nXo
} MEled:i
} o
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publicint getNextIndex(){ 6
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int nextIndex = getStartIndex() + 8~6H\.0Q
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pageSize; &?wNL@n
if(nextIndex >= totalCount) Yg<