Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 %Ig3udcY?
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 z !:%Hbh=
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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 _';oT*#
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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 !p|d[
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分页支持类: gOKF%Ej31T
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java代码: #u<n .
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package com.javaeye.common.util; ubQZTA x
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import java.util.List; Avn)%9
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publicclass PaginationSupport { z~O:w'(g
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publicfinalstaticint PAGESIZE = 30; AvEd?
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privateint pageSize = PAGESIZE; Y>2kOE
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privateList items; F{"4cyoou
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privateint totalCount; <WRrB
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privateint[] indexes = newint[0]; >7I"_#x1:
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privateint startIndex = 0; y ZR\(\?<
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public PaginationSupport(List items, int Y5?OJO{h"
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totalCount){ $%BNoSK
setPageSize(PAGESIZE); hqVxvS"
setTotalCount(totalCount); ;@l5kdZx`
setItems(items); c&a.<e3mL
setStartIndex(0); 19.oW49Sw
} < k?jt
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public PaginationSupport(List items, int U>=&
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totalCount, int startIndex){ X|Z2"*;b`
setPageSize(PAGESIZE); #Qnl,lf
setTotalCount(totalCount); MclW!CmJ
setItems(items); o+I'nFtnI
setStartIndex(startIndex); aokV'6
} `37$YdX
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public PaginationSupport(List items, int akB+4?+s)
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totalCount, int pageSize, int startIndex){ Vp
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setPageSize(pageSize); <Gkmk?x`A
setTotalCount(totalCount); z)&ZoSXWc
setItems(items); ^7>k:|7-t
setStartIndex(startIndex); IMtfi(Y%F
} "D1u2>(
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publicList getItems(){ 0; BX
return items; X[r\ Qa
} '|^<|S_+K
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publicvoid setItems(List items){ W5_aS2$
this.items = items; VYC$Q;Z
} %kSpMj|
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publicint getPageSize(){ C|hD^m
return pageSize; 1}Mdo&:t
} D3xyJ
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publicvoid setPageSize(int pageSize){ Tj
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this.pageSize = pageSize; ]mSkjKw
} t],5{UF
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publicint getTotalCount(){ cH>3|B*y
return totalCount; YR/%0^M'0
} 6h%_\I.Z[[
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publicvoid setTotalCount(int totalCount){ ?f'iS#XL
if(totalCount > 0){ g886RhCe
this.totalCount = totalCount; nTQ&nu!
int count = totalCount / 0AWOdd>.
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pageSize; :j}4F
if(totalCount % pageSize > 0) `#x}-A$
count++; czu?]9;^
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indexes = newint[count]; W34_@,GD
for(int i = 0; i < count; i++){ V4>qR{5
indexes = pageSize * Hu-Y[~9^L:
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} MQvk&
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}else{ s !XJ
this.totalCount = 0; F*rsi7#!pG
} -}$mv
} a7YzX5n
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publicint[] getIndexes(){ Q$XNs%7w5,
return indexes; bji^b@us_
} !Un&OAy.!
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publicvoid setIndexes(int[] indexes){ P'Diie
this.indexes = indexes; 8k|&&3_[?
} NL}Q3Vv1.
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publicint getStartIndex(){ 5g\>x;cc
return startIndex; @4xV3Xkf&C
} .bloaeu-
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publicvoid setStartIndex(int startIndex){ J*FUJT
if(totalCount <= 0) N6UPD11}6
this.startIndex = 0; 7+;$_,Xo<
elseif(startIndex >= totalCount) fjP(r+[
this.startIndex = indexes Y~"5HP|
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[indexes.length - 1]; 8o%g2 P9.
elseif(startIndex < 0) rGIf/=G^r
this.startIndex = 0; &V7