Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 x n?$@
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 6dgwsl~
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据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 7vTzY%v
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 C cPOK2
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分页支持类: qF\w#nG
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java代码: r3qKT
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package com.javaeye.common.util; bMn)lrsX
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import java.util.List; Qo32oT[DM
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publicclass PaginationSupport { ;.'?(iEB
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publicfinalstaticint PAGESIZE = 30; X!_&%^L'
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privateint pageSize = PAGESIZE; DL`8qJ'mJs
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privateList items; j"K^zh
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privateint totalCount; i-PK59VZ8f
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privateint[] indexes = newint[0]; OClG dFJ|
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privateint startIndex = 0; k4a51[SYBK
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public PaginationSupport(List items, int !wN2BCSY@
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totalCount){ Ge_fU'F
setPageSize(PAGESIZE); +5S>"KAUt0
setTotalCount(totalCount); @^T~W^+
setItems(items); yDfH`]i)U
setStartIndex(0); ?7}ybw3t]
} D=Q.Q
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public PaginationSupport(List items, int FQJiLb._Z
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totalCount, int startIndex){ ]DKRug5
setPageSize(PAGESIZE); Q 9fK)j1$
setTotalCount(totalCount); U0t|i'Hx
setItems(items); fcxg6W'
setStartIndex(startIndex); ynv{
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} 3m= _a
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public PaginationSupport(List items, int !NH(EWER
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totalCount, int pageSize, int startIndex){ cI P.5)Ca
setPageSize(pageSize); /v^'5j1o
setTotalCount(totalCount); h;,1BpbM
setItems(items); [0EWIdT*b
setStartIndex(startIndex); =* G3Khz!
} udu<Nis4
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publicList getItems(){ m^!:n$
return items; d\uN
} =WjHf8v;
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publicvoid setItems(List items){ N"}>);r
this.items = items; mFg$;F
} U|]cB
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publicint getPageSize(){ 9v_s_QkL2
return pageSize; ||JUP}eP
} o`QNZN7/}
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publicvoid setPageSize(int pageSize){ w+/`l*
this.pageSize = pageSize; KJRAW]?{
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publicint getTotalCount(){ lhHH|~t0
return totalCount; kL%ot<rt)w
} 0CX,"d_T,
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publicvoid setTotalCount(int totalCount){ &y5"0mA
if(totalCount > 0){ yI 2UmhA
this.totalCount = totalCount; 3l%Qd<
int count = totalCount / 5afD;0D5TI
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pageSize; Xd=KBB[r?
if(totalCount % pageSize > 0) gzIx!sc
count++; [02rs@c>
indexes = newint[count]; lhKn&U
for(int i = 0; i < count; i++){ /kY9z~l
indexes = pageSize * db~^Gqv6k
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} 5X20/+aT
}else{ :ZM9lBY h
this.totalCount = 0; uX*2Rs$s
} }3^m>i*8
}
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publicint[] getIndexes(){ &1$d`>fn
return indexes; r|EN 5
} aOH|[
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publicvoid setIndexes(int[] indexes){ EY )2,
this.indexes = indexes; ZU73UL
} j:h}ka/!p
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publicint getStartIndex(){ aT,WXW*
return startIndex; 9C7Npf?~M
} N3u06
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publicvoid setStartIndex(int startIndex){ _
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if(totalCount <= 0) bc(MN8b ]j
this.startIndex = 0; WOO3z5 La
elseif(startIndex >= totalCount) [A~?V.G
this.startIndex = indexes )<QX2~m<
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[indexes.length - 1]; Yi9Y`~J
elseif(startIndex < 0) fM.#FT??
this.startIndex = 0; oXZWg~&l^
else{ S<T'B0r8
this.startIndex = indexes Uh0g !zzp
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[startIndex / pageSize]; wqG#jC!5
} &k'<