Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 a'*~E?b
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 P$@:T[}v
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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 V~Jt
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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 'I>geW?{QK
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分页支持类: U0N6\+
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java代码: 8\PI1U
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package com.javaeye.common.util; R(f%*S4
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import java.util.List; wawJZ+V
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publicclass PaginationSupport { s>{\^T7y
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publicfinalstaticint PAGESIZE = 30; )L_@l5l
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privateint pageSize = PAGESIZE; tvUC d}
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privateList items; e YiqT Wn:
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privateint totalCount; { /
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privateint[] indexes = newint[0]; c;n\HYk
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privateint startIndex = 0; 2cZgG^
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public PaginationSupport(List items, int Pv*]AF;9pQ
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totalCount){ "DX2Mu=
setPageSize(PAGESIZE); /38XaKc{6
setTotalCount(totalCount); y3P4]sq
setItems(items); P\@efq@!
setStartIndex(0); jm'^>p,9G
} -"x@ V7X
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public PaginationSupport(List items, int <EY{goW
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totalCount, int startIndex){ D23 c/8K
setPageSize(PAGESIZE); g?@fHFct
setTotalCount(totalCount); wb39s^n
setItems(items); |>wGl
setStartIndex(startIndex); QM7BFS;
} hK %FpGYA
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public PaginationSupport(List items, int U@53VmrOy
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totalCount, int pageSize, int startIndex){ e`K{
setPageSize(pageSize); +{%)}?F
setTotalCount(totalCount); yMpZ-b$*~
setItems(items); \86NV="U
setStartIndex(startIndex); |:L}/onK
} O]oH}#5b
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publicList getItems(){ ku#WQL
return items; M5N#xgR
} ]UGk"s5A
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publicvoid setItems(List items){ h"f_T
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this.items = items; 7s Gf_`Z
} l4U
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publicint getPageSize(){ \4O_@d`A
return pageSize; C>QWV[F
} Tz&h[+ 6`
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publicvoid setPageSize(int pageSize){ YhP+{Y8t
this.pageSize = pageSize; _
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} &7r a
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publicint getTotalCount(){ OMBH[_
return totalCount; x
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publicvoid setTotalCount(int totalCount){ hV
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if(totalCount > 0){ @E>I<j,D
this.totalCount = totalCount; gSe3S-Lt
int count = totalCount / v^Rw9*w{
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pageSize; y~Mu~/s
if(totalCount % pageSize > 0) k:N/-P&+
count++; dfh 1^Go
indexes = newint[count]; iV!V!0- @
for(int i = 0; i < count; i++){ B`)bo}h
indexes = pageSize * b,>>E^wd!
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} Y+5aT(6O
}else{ bGxHzzU}
this.totalCount = 0; D&qJ@PR
} lAkg47i
} \mWH8Z
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publicint[] getIndexes(){ o/&
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return indexes; Lb{.}
} *&hbfsP:
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publicvoid setIndexes(int[] indexes){ wVX2.D'n<
this.indexes = indexes; r;+a%?P
} AHHV\r
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publicint getStartIndex(){ ?%n"{k?#
return startIndex; .Ad9(s
} -lR7
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publicvoid setStartIndex(int startIndex){ KN>h*eze
if(totalCount <= 0) p6ryUJc6
this.startIndex = 0; nYe:$t3F=
elseif(startIndex >= totalCount) #$F*.vQSs+
this.startIndex = indexes kdaq_O:s
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[indexes.length - 1]; 5Vai0Qfcu:
elseif(startIndex < 0) Z;njSw%:
this.startIndex = 0; *,~L_)vWO
else{ <(H<*Xf9
this.startIndex = indexes <j3|Mh_(I
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[startIndex / pageSize]; A4rkwM
} n~ 0MhE0H
} kI2+&
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publicint getNextIndex(){ /Z[HU{4
int nextIndex = getStartIndex() + /rky
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pageSize; 9'@G7*Yn
if(nextIndex >= totalCount) G&