Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 )Ho"b
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 37Q8Yf_
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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 d!Gy#<H
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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 3(,m(+J[S
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分页支持类: vTK8t:JQ~
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java代码: V@b7$z
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package com.javaeye.common.util; RjPkH$u'Pj
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import java.util.List; nLG)>L
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publicclass PaginationSupport { j2u'5kJ
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publicfinalstaticint PAGESIZE = 30; 7Hgn/b[?b
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privateint pageSize = PAGESIZE; % -AcA
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privateList items; #\QW <I#/
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privateint totalCount; e!gNd>b {
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privateint[] indexes = newint[0]; ZeU){CB
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privateint startIndex = 0; pUF JQ*
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public PaginationSupport(List items, int H@$K/
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totalCount){ 8#Z)qQWi_t
setPageSize(PAGESIZE); @SiV3k
setTotalCount(totalCount); 0a8\{(w
setItems(items); h-;> v.
setStartIndex(0); <jF&+[*iT
} S Z/yijf
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public PaginationSupport(List items, int ipp`9 9
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totalCount, int startIndex){ g'7\WQ
setPageSize(PAGESIZE); ly0L)L]\
setTotalCount(totalCount); &oB*gGRw=7
setItems(items); xR&:]M[Vg
setStartIndex(startIndex); 26nwUNak
} N0kCdJv
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public PaginationSupport(List items, int K{/i2^4
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totalCount, int pageSize, int startIndex){ "#7Q}d!x
setPageSize(pageSize); !-470J
setTotalCount(totalCount); Xy 4k;+
setItems(items); 6'/Zq
setStartIndex(startIndex); +pYwc0~
} 0=6mb]VUi=
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publicList getItems(){ "U4c'iW
return items; eaDZ^Z
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} MZ-;'w&Z
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publicvoid setItems(List items){ Ot`%5<E^
this.items = items; fx(8 o+
} &&P9T/Zks
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publicint getPageSize(){ Q5Nbu90
return pageSize; 3!gz^[!?EN
} (:`4*xK
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publicvoid setPageSize(int pageSize){ nA("
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this.pageSize = pageSize; qp6'n&^&
} :LNZC,-f}5
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publicint getTotalCount(){ cyB+(jLHDs
return totalCount; XIbxi
} 85Yi2+8f4
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publicvoid setTotalCount(int totalCount){ .*njgAq7
if(totalCount > 0){ \-6y#R-B
this.totalCount = totalCount; ^"
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int count = totalCount / mIYKzu_k=
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pageSize; \9#f:8Q
if(totalCount % pageSize > 0) +[uh);vD`G
count++; 1
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indexes = newint[count]; >W-xDzJry
for(int i = 0; i < count; i++){ 3I( n];
indexes = pageSize * EHn!ZrQgh
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} vvxD}p=y
}else{ Lv/}&'\(
this.totalCount = 0; u;rmqo1
} 5~DKx7P!Z
} L3wj vq^
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publicint[] getIndexes(){ ineSo8| @
return indexes; 27c0wzq
} wk8fa
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publicvoid setIndexes(int[] indexes){ SUMfebW5
this.indexes = indexes; {[Ri:^nHgL
} T?!SEblP]
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publicint getStartIndex(){ >\pF5a`
return startIndex; P(7el
} Qfy_@w]
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publicvoid setStartIndex(int startIndex){ i_AD3Jrs
if(totalCount <= 0) Y96<c" t
this.startIndex = 0; eF{uWus
elseif(startIndex >= totalCount) 5ILKYUg,
this.startIndex = indexes ^i_v\E[QU
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[indexes.length - 1]; w2'z~\dG8
elseif(startIndex < 0) Z'k?lkB2i
this.startIndex = 0; 2'M5+[8y8
else{ ]3*w3Y!XK
this.startIndex = indexes vW*Mf}=
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[startIndex / pageSize]; H'YK j'
} Zh;}Q(w
} z$%8'
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publicint getNextIndex(){ *lLCH,
int nextIndex = getStartIndex() + URm<