Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ,&sBa{0
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 4V7{5:oa
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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 /EOtK|E
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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 b7/1]
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分页支持类: PF1m :Iz`d
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java代码: V$wf;v0d(
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package com.javaeye.common.util; 1_7}B4
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import java.util.List; _AQ :<0/#
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publicclass PaginationSupport { hIw<gb4J%
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publicfinalstaticint PAGESIZE = 30; 5vL]Y)l
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privateint pageSize = PAGESIZE; $H/3t? 6h`
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privateList items; ztG_::QtG]
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privateint totalCount; 6P'
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privateint[] indexes = newint[0]; gJ>?<F;
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privateint startIndex = 0; S*:b\{[f>
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public PaginationSupport(List items, int ;h3uMUCml
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totalCount){ Jjz:-Uqq2
setPageSize(PAGESIZE); +E QRNbA
setTotalCount(totalCount); xv9Z~JwH
setItems(items); c{j0A;XMS
setStartIndex(0); H~@E&qd
} =%|S$J
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public PaginationSupport(List items, int VuFH
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totalCount, int startIndex){ )[6H!y5
setPageSize(PAGESIZE); .8CR
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setTotalCount(totalCount); 3a_S-&?X
setItems(items); jjkiic+tDN
setStartIndex(startIndex); :a}hd^;[%8
} jR\T\r4
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public PaginationSupport(List items, int VZJs@qx:Z
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totalCount, int pageSize, int startIndex){ O GrVy=rd
setPageSize(pageSize); [,-MC7>]
setTotalCount(totalCount); gmWRw{nS+
setItems(items); (eN\s98)/
setStartIndex(startIndex); _ EHr?b2
} ^l
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publicList getItems(){ !tFs(![
return items; |qJQWmJO&U
} U=p,drF,A
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publicvoid setItems(List items){ .wx;!9
this.items = items; AU$W=Z*
} Zo22se0)
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publicint getPageSize(){ 8MM#q+8
return pageSize; Tul_/` An
} mT>56\63
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publicvoid setPageSize(int pageSize){ 7f'9Dm`
this.pageSize = pageSize; O(h4;'/E
} X&t)S?eCos
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publicint getTotalCount(){ *\I?gDON
return totalCount; J-ACV(z=q
} 1/3Go97/qV
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publicvoid setTotalCount(int totalCount){ fC2e}WR
if(totalCount > 0){ a84^"GH7
this.totalCount = totalCount;
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int count = totalCount / 9n$GeRO
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pageSize; 'd^U!l
if(totalCount % pageSize > 0) X26gl 'U
count++; %w,
indexes = newint[count]; EMmNlj6
for(int i = 0; i < count; i++){ y1(smZU
indexes = pageSize * o';sHa'
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} Ja|! fT
}else{ x,STt{I=
this.totalCount = 0; *]p]mzc
} C6ZM#}I$l
} d90B15]gv
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publicint[] getIndexes(){ A}FEM[2
return indexes; N't*e Ci
} /,f*IdB
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publicvoid setIndexes(int[] indexes){ f[HhLAVGK`
this.indexes = indexes; 3lqR(Hh3
} &eG,CIT
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publicint getStartIndex(){ !uii|"
return startIndex; {^1GHU
} 0R>M_|
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publicvoid setStartIndex(int startIndex){ M])Y|}wv8
if(totalCount <= 0) @mW: FVI
this.startIndex = 0; 0"(5\T
elseif(startIndex >= totalCount) 13I
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this.startIndex = indexes ``)ys^V
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[indexes.length - 1]; iE, I\TY[
elseif(startIndex < 0) + O=wKsGD
this.startIndex = 0; b{=2#J-
else{ _|bIl%W;\'
this.startIndex = indexes
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[startIndex / pageSize]; +u#;k!B/>
} k)UF.=$d
} k, &