Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 MIJ^n(-G
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 E9IU,P6a
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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 zFqlTUD`t
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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 wjm _bEi
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分页支持类: [Grd?mc#
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java代码: OJGEX}3'
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package com.javaeye.common.util; #Jo#[-r
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import java.util.List; 8i=c|k,GL.
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publicclass PaginationSupport { *?a rEYc8
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publicfinalstaticint PAGESIZE = 30; 69{BJ]q
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privateint pageSize = PAGESIZE; oK5"RW
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privateList items; oWu2}#~z_
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privateint totalCount; x9s7:F
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privateint[] indexes = newint[0]; bZE;}d
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privateint startIndex = 0; Pde|$!Jo
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public PaginationSupport(List items, int Be=J*D!E=>
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totalCount){ kf8-#Q/B
setPageSize(PAGESIZE);
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setTotalCount(totalCount); Z-fQ{&a{
setItems(items); c&{1Z&Y
setStartIndex(0); .K=r.tf~
} D+Ke)-/
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public PaginationSupport(List items, int *f[nge&.
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totalCount, int startIndex){ ETw7/S${
setPageSize(PAGESIZE); #E?T E
setTotalCount(totalCount); 4;]<#u
setItems(items); ET_a>]<mv
setStartIndex(startIndex); 7*9a`p3w
} g ni=S~u
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public PaginationSupport(List items, int q`HuVilNH
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totalCount, int pageSize, int startIndex){ -VqZw&"
setPageSize(pageSize); Xu4C*]A>
setTotalCount(totalCount); uANG_sX^n
setItems(items); yJCqP=
setStartIndex(startIndex); 66P'87G
} Q]9+-p(=
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publicList getItems(){ ,N[N;Uoj
return items; iP7
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} }e7os0;s
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publicvoid setItems(List items){ emhI1
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this.items = items; Z*+0gJ<Y
} {:D8@jb[
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publicint getPageSize(){ V`/E$a1&
return pageSize; _JVFn=
} p#5U[@TK
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publicvoid setPageSize(int pageSize){ $pKlF0 .
this.pageSize = pageSize; /$Qs1*
} ))/NGa
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publicint getTotalCount(){ W'|NYw_B
return totalCount; :]Nn(},
} :%6OFO$z
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publicvoid setTotalCount(int totalCount){ -6Y@_N
if(totalCount > 0){ m\4V;F
this.totalCount = totalCount; DjyqQyq~
int count = totalCount / B]KR *
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pageSize; aVg~/
if(totalCount % pageSize > 0) Dq [f
count++; F@8G,$
indexes = newint[count]; N('=qp9
for(int i = 0; i < count; i++){ [>2iz
indexes = pageSize * s6q6)RD"
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} Qm-I=Rh+
}else{ RP@U0o
this.totalCount = 0; /C[Q?
} q,i&%
} *^ZJ&.
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publicint[] getIndexes(){ eD|p1+76
return indexes; YiO3.+H
} i/vo
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publicvoid setIndexes(int[] indexes){ 8a,uM :
this.indexes = indexes; ww}4
} fY4I(~Q
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publicint getStartIndex(){ w#XD4kwQG
return startIndex; <y
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} ^n?`l ^9c$
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publicvoid setStartIndex(int startIndex){ diz=|g=w
if(totalCount <= 0) Wbq0K6X
this.startIndex = 0; 5*O*p `Ba
elseif(startIndex >= totalCount) NmuzAZr
this.startIndex = indexes 5@lVuMIYT
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