Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 |V(0GB
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 E?@m?@*/
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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 XK vi=0B
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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 /mZE/>&~,
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分页支持类: +w~oH =
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java代码: 0+8e,
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package com.javaeye.common.util; hqdDm
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import java.util.List; $pz/?>!
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publicclass PaginationSupport { [N'h%1]\
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publicfinalstaticint PAGESIZE = 30; VtohL+
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privateint pageSize = PAGESIZE; D m9sL!
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privateList items; jiC>d@~y
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privateint totalCount; phz&zlD
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privateint[] indexes = newint[0]; |l!aB(NW
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privateint startIndex = 0; yDh6KUK
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public PaginationSupport(List items, int o !7va"
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totalCount){ 8b=_Y;
setPageSize(PAGESIZE); 5LMw?P.<
setTotalCount(totalCount); LH6vLuf
setItems(items); }PpUAt~g
setStartIndex(0); _
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} T^q
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public PaginationSupport(List items, int : E?V.
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totalCount, int startIndex){ BJ0?kX@
setPageSize(PAGESIZE); 'B}qZCy W
setTotalCount(totalCount); 048kPXm`
setItems(items); bPMhfK2 %
setStartIndex(startIndex); wyG;8I
} yDS4h(^
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public PaginationSupport(List items, int !!y a
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totalCount, int pageSize, int startIndex){ dqAw5[qMJ
setPageSize(pageSize); h`wD
setTotalCount(totalCount); BerwI
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setItems(items); K|@G t%Y
setStartIndex(startIndex); L0]_X#s>#
} 1 {)Q[#l
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publicList getItems(){ azU"G(6y?+
return items; Y^]rMK/;
} O
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publicvoid setItems(List items){ K+iP6B
this.items = items; y> (w\K9W
} 8>%hz$no=
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publicint getPageSize(){ d!{r v
return pageSize; Dhv3jg;lq
} B1Oq!k
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publicvoid setPageSize(int pageSize){ =Runf
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this.pageSize = pageSize; },[}$m%
} YoE3<[KD(
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publicint getTotalCount(){ F5#YOck&,
return totalCount; H:\k}*w
} "h ^Z
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publicvoid setTotalCount(int totalCount){ F&Hrk|a
if(totalCount > 0){ F<w/PMb
this.totalCount = totalCount; ZG@q`<:j
int count = totalCount / MY/}-*|
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pageSize; ::F|8
if(totalCount % pageSize > 0) Np)lIGE
count++; :i7;w%B
indexes = newint[count]; =qIyqbXz
for(int i = 0; i < count; i++){ )_NO4`ejs/
indexes = pageSize * Q7A MRrN
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} -%dCw6aX+
}else{ {_dvx*M
this.totalCount = 0; %K
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} 4`R(?
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publicint[] getIndexes(){ %%wNZ{
return indexes; M@ZI\
} 9g?(BI^z
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publicvoid setIndexes(int[] indexes){ ]9,;K;1<
this.indexes = indexes; FGQzoS
} v9UD%@tZ
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publicint getStartIndex(){ ~v"L!=~G;a
return startIndex; 1i] ^{;]
} FCn_^l)EA
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publicvoid setStartIndex(int startIndex){ .}*"Nv
if(totalCount <= 0) wvPk:1wD5
this.startIndex = 0; 2Hv+W-6v
elseif(startIndex >= totalCount) Tac$LS\Q
this.startIndex = indexes >"<Wjr8W!$
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[indexes.length - 1]; qjc4.,/
elseif(startIndex < 0) RX5dO%
this.startIndex = 0; CWS4lx
else{ wa3}SB
this.startIndex = indexes dq[xwRU1
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[startIndex / pageSize]; Qw)c$93
} \^%}M!tan
} <