Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 a)L\+$@*
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 WX.6|
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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 akR+QZ,)
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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 x=-dv8N?
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分页支持类: $D;/b+a
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java代码: a'zXLlXgGd
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package com.javaeye.common.util;
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import java.util.List; !97U2L4
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publicclass PaginationSupport { 'v|R' wi\
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publicfinalstaticint PAGESIZE = 30; YdgDMd-1
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privateint pageSize = PAGESIZE; :Q\Es:y
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privateList items; v67utISNI
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privateint totalCount; op!ft/Yyb
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privateint[] indexes = newint[0]; F7o#KN*.]
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privateint startIndex = 0; o 8fB
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public PaginationSupport(List items, int 3)D' Yx
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totalCount){ FE'|wf
setPageSize(PAGESIZE); .>X0 $#
setTotalCount(totalCount); @^q|C&j
setItems(items); ;i;2cq
setStartIndex(0); ucP"<,a
} <H; z4
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public PaginationSupport(List items, int =`&7pYd,
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totalCount, int startIndex){ LgG7|\(-
setPageSize(PAGESIZE); FCr^D$_w
setTotalCount(totalCount);
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setItems(items); kU75
setStartIndex(startIndex); rnOg;|u8
} vk:k ~
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public PaginationSupport(List items, int ^-wdIu~p?
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totalCount, int pageSize, int startIndex){ >]ghme
setPageSize(pageSize); \`kH2`
setTotalCount(totalCount); s%cfJe_k
setItems(items); /
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setStartIndex(startIndex); 7O.?I#
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} t[r<&1[&
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publicList getItems(){ uT
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return items; _VjfjA<c8
} *A^`[_y
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publicvoid setItems(List items){ W5)R{w0`GD
this.items = items; vk1E!T9X
} B@+&?%ub:
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publicint getPageSize(){ og?>Q i Tr
return pageSize; #7*{ $v
} eb#yCDIC
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publicvoid setPageSize(int pageSize){ nO\c4#ce
this.pageSize = pageSize; 6x.ZS'y
} mJ #|~I*Z-
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publicint getTotalCount(){ 7A,lQh
return totalCount; xs}3=&c(
} _o+z#Fn z
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publicvoid setTotalCount(int totalCount){ hf`5NcnP
if(totalCount > 0){ VG=mA4Dd
this.totalCount = totalCount;
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int count = totalCount / .#OD=wkN0
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pageSize; 4Ou5Vp&y
if(totalCount % pageSize > 0) RE<s$B$[
count++; :>q*#vlb
indexes = newint[count]; S|K#lL
for(int i = 0; i < count; i++){ dSP~R
indexes = pageSize * K*/X{3 J;
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} <Pnz$nH:e
}else{ Sb|9U8h
this.totalCount = 0; >WZ_) `R
} $sxm MP
} [Yyb)Qf
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publicint[] getIndexes(){ x
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return indexes; v<AFcY
} AE@N:a
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publicvoid setIndexes(int[] indexes){ }\?]uNH
this.indexes = indexes; =>mx>R`S
} !7>~=n_,L.
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publicint getStartIndex(){ RG8Ek"D@
return startIndex; \'Z^rjB
} !uc"|S?
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publicvoid setStartIndex(int startIndex){ wfMtWXd;KB
if(totalCount <= 0) ]n
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this.startIndex = 0; X4$86
elseif(startIndex >= totalCount) 1
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this.startIndex = indexes uLq%Nu
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[indexes.length - 1]; &_o.:SL|
elseif(startIndex < 0) tj1M1s|a
this.startIndex = 0; Nu[0X
else{ &a9Y4~e::
this.startIndex = indexes 9`FPV`/
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[startIndex / pageSize]; Tya[6b!8
} XIRvIwO
} mzbMX
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publicint getNextIndex(){ INF}~DN]
int nextIndex = getStartIndex() + _qp^+
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pageSize; +d289"
if(nextIndex >= totalCount) ,&ld:v?~
return getStartIndex(); rk)h_zN
else -VafN
return nextIndex; y3Q2d7G
} n1Fp$9%
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publicint getPreviousIndex(){ 6!A+$"
int previousIndex = getStartIndex() - -oMp@2\e
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pageSize; gCP f1z
if(previousIndex < 0) LQ{z}Ay
return0; qgkC)
else ;hZ^zL
return previousIndex; x*a^msY%
} 7\<}378/^
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