Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 m+t<<5I[-
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 *?2aIz"
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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 fd {75J5%
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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 UP18?uM
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分页支持类: k$kOp *X
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java代码: xnuu#@f
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package com.javaeye.common.util; kq{PM-]l
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import java.util.List; M+7&kt0;
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publicclass PaginationSupport { Xjy5Yj
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publicfinalstaticint PAGESIZE = 30; PQ u_]cXI
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privateint pageSize = PAGESIZE; +b =X~>vZ
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privateList items; =bx;TV
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privateint totalCount; 6aw1
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privateint[] indexes = newint[0]; `b11,lg
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privateint startIndex = 0; Jv,*rQH
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public PaginationSupport(List items, int 9+"R}Nxv^
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totalCount){
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setPageSize(PAGESIZE); Ft<6`C
setTotalCount(totalCount); %4=r .9
setItems(items); U<YP@?w
setStartIndex(0); \aEarIX#*
} LU-,B?1
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public PaginationSupport(List items, int A~@u#]]<n
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totalCount, int startIndex){ "^Ax}Jr
setPageSize(PAGESIZE); ;R_H8vp
setTotalCount(totalCount); >FR;Ux~a
setItems(items); m0}1P]dc
setStartIndex(startIndex); \l_U+d,qq
} [P3].#"]M=
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public PaginationSupport(List items, int R0WI s:k2
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totalCount, int pageSize, int startIndex){ l_ES$%d
setPageSize(pageSize); &OMe'P
setTotalCount(totalCount); e5GJ:2sH
setItems(items); <o aVI?
setStartIndex(startIndex); Vx~N`|yY
} -p-<mC@<&S
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publicList getItems(){ RBA{!
return items; apkmb<
} mj7Em&
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publicvoid setItems(List items){ ,rU>)X
this.items = items; ,.K}uW
} IyV%tOy
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publicint getPageSize(){ M[= #%U3*N
return pageSize; O>M4%p
} #~I.F4
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publicvoid setPageSize(int pageSize){ q83!PI
this.pageSize = pageSize; Y)ig:m]#
} ~Pm[Ud
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publicint getTotalCount(){ 0ECQ>Ux:
return totalCount; $q%l)]+
} -s!cZ3
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publicvoid setTotalCount(int totalCount){ uto
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if(totalCount > 0){ FQgc\-8tm
this.totalCount = totalCount; sT<XZLu
int count = totalCount / :&'[#%h8
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pageSize; @((Y[<
if(totalCount % pageSize > 0) mC,: .d
count++; 2Sha&Z*CE
indexes = newint[count]; &x#3N=c#
for(int i = 0; i < count; i++){ iiWm>yy
indexes = pageSize * yQ/E0>Uj!
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} B=;pwX
}else{ 7xlarns
this.totalCount = 0; v6#i>n~x,
} qJyGr ?
} "?f_U/+D<
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publicint[] getIndexes(){ z7PmyU
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return indexes; q(nPI
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publicvoid setIndexes(int[] indexes){ dJf#j?\[
this.indexes = indexes; O V+|j
} g4U`Qf3
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publicint getStartIndex(){ U~l.%mui
return startIndex; b&_u+g
} -nL!#R{e
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publicvoid setStartIndex(int startIndex){ !=B=1th4
if(totalCount <= 0) S4!}7NOh
this.startIndex = 0; #sJL"GB
elseif(startIndex >= totalCount) ~1g)4g~
this.startIndex = indexes /f Ui2[y
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[indexes.length - 1]; ^dP]3D1
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elseif(startIndex < 0) 4^uwZ:
this.startIndex = 0; )"sJaHx<
else{ G>?'b
this.startIndex = indexes 6jpfo'uB$
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[startIndex / pageSize]; BHrNDpv
} &