Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 Vh{(*p
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 3$ wK*xK
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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 |j~l%d*<w
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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 H*e +
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分页支持类: ocu,qL)W
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java代码: [5!dO\-[
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package com.javaeye.common.util; ,u>[cRqw
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import java.util.List; c?N,Cd~q
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publicclass PaginationSupport { F$bV}>-1k
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publicfinalstaticint PAGESIZE = 30; jD${ZIv
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privateint pageSize = PAGESIZE; $,yAOaa
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privateList items; s VHk;:e>x
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privateint totalCount; HItNd
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privateint[] indexes = newint[0]; hJsP;y:@Lm
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privateint startIndex = 0; T7%!JBg@
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public PaginationSupport(List items, int rtfRA<
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totalCount){ ?w+ V:D
setPageSize(PAGESIZE); ,yA[XAz~U
setTotalCount(totalCount); 'NZ=DSGIy
setItems(items); *~>p;*
setStartIndex(0); T;?k]4.X
} Ulx]4;uzf
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public PaginationSupport(List items, int &7oL2Wf
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totalCount, int startIndex){ *= ?|n
setPageSize(PAGESIZE); /-,\$@J5)
setTotalCount(totalCount); 2 rr=FJ
setItems(items); 1I{8 |
setStartIndex(startIndex); #-@uLc
} eIfQ
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public PaginationSupport(List items, int Lm=;Y6'`N
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totalCount, int pageSize, int startIndex){ e"52'zAV-
setPageSize(pageSize); (6Od
setTotalCount(totalCount); DL?nvH
setItems(items); P6R_W
setStartIndex(startIndex); a5GLbanF
} EG;E !0
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publicList getItems(){ 10i$ b<O
return items; Yu>DgMW
} hd u2?v@
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publicvoid setItems(List items){ mr^3Y8$s
this.items = items; 94?WL
} p*&0d@'r
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publicint getPageSize(){ G %6P`:
return pageSize; KGHSEZi]
} M{Z
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publicvoid setPageSize(int pageSize){ yB2h/~+
this.pageSize = pageSize; D**GC
} QCF'/G
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publicint getTotalCount(){ *B"Y]6$
return totalCount; U~N7\Pa4
} #uw&u6*\q
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publicvoid setTotalCount(int totalCount){ [YfoQ1
if(totalCount > 0){ w{6C4~0
this.totalCount = totalCount; /}(d'@8p
int count = totalCount / =d<RgwscJ
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pageSize; /,I cs
if(totalCount % pageSize > 0) ba);f[>
count++; K"H\gmV_g
indexes = newint[count]; &~
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for(int i = 0; i < count; i++){ kkF)Tro\
indexes = pageSize * B6Vlc{c5SO
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} `t&{^ a&Y"
}else{ 6!ve6ZB[p
this.totalCount = 0; H<Oo./8+
} iqQT ^
} o)AwM"
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publicint[] getIndexes(){ X#lNS+&='
return indexes; '7-Yo
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} /Vn>(;lo
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publicvoid setIndexes(int[] indexes){ "6$V1B0KW
this.indexes = indexes; QO/0VB42
} 4VWk/HK-!
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publicint getStartIndex(){ l@4_D;b3o"
return startIndex; D(#f`Fj;
} -{cHp
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publicvoid setStartIndex(int startIndex){ sjr,)|#[
if(totalCount <= 0) lW&(dn)}
this.startIndex = 0; IOcQI:4.`
elseif(startIndex >= totalCount) d(T4Kd$r
this.startIndex = indexes ~&i4