Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 :9b RuUm
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 7yp*I[1Qf>
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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 1N+#(<x@,
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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+_}C
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分页支持类: p2G8Qls
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java代码: P `"7m-
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package com.javaeye.common.util; ja/[PHq"
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import java.util.List; ,k!a3"4+TJ
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publicclass PaginationSupport { u$#7W>R
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publicfinalstaticint PAGESIZE = 30; WIm7p1U#V
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privateint pageSize = PAGESIZE; y~7lug
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privateList items; TXcKuo=
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privateint totalCount; zwtsw [.
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privateint[] indexes = newint[0]; ~-d.3A$u
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privateint startIndex = 0; BvF_9
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public PaginationSupport(List items, int Q\L5ZJ%y/
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totalCount){ !Yu-a!
setPageSize(PAGESIZE); $4
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setTotalCount(totalCount); ;Oy>-Ij5P
setItems(items); -(1\`g07
setStartIndex(0); .h,xBT`}Ji
} dU6LB+A
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public PaginationSupport(List items, int pm\X*t}L
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totalCount, int startIndex){ or}*tSKX
setPageSize(PAGESIZE); de9l;zF
setTotalCount(totalCount); |`wsKr'
setItems(items); G:`Jrh
setStartIndex(startIndex); D}sGBsOW
} zF&UdS3
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public PaginationSupport(List items, int Jr)`shJ"
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totalCount, int pageSize, int startIndex){ m7vxzC*
setPageSize(pageSize); 'hO;sL
setTotalCount(totalCount); `aL|qyrq#
setItems(items); KVxb"|[
setStartIndex(startIndex); /T)n5X
} tr8Cx~<
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publicList getItems(){ SzX~;pFM0
return items; od*Z$Hb>'
} vN:[
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publicvoid setItems(List items){ *Ne&SXg
this.items = items; ROS"VV<
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publicint getPageSize(){ o!`O
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return pageSize; ><Z3<7K9
} n~u3
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publicvoid setPageSize(int pageSize){ 3DC%I79
this.pageSize = pageSize; Qk.Q9@3W
} 2BX GVo
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publicint getTotalCount(){ (%y c5+f!
return totalCount; !]+Z%ed`%
} 5!jNL~M
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publicvoid setTotalCount(int totalCount){ <3=qLm
if(totalCount > 0){ NLZZMr
this.totalCount = totalCount; DnsP7k.8T
int count = totalCount / YQV?S
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pageSize; s%[GQQ-N
if(totalCount % pageSize > 0) l@rwf$-
count++; \UqS -j|
indexes = newint[count]; tQ/
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for(int i = 0; i < count; i++){ rjHIQC C
indexes = pageSize * `k]!6osZo
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} L3GC[$S
}else{ PuZs5J3
this.totalCount = 0; Ocwp]Mut&
} x2;i<
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} .um&6Q=2<
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publicint[] getIndexes(){ 30 [#%_* o
return indexes; {&=qM!2e
} wp%FM
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publicvoid setIndexes(int[] indexes){ $dh4T";
this.indexes = indexes; [Z5[~gP3
} p&sK\
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publicint getStartIndex(){ (y~laW!
return startIndex; MATgJ`lsy
} !3I(4?G,
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publicvoid setStartIndex(int startIndex){ Yi&-m}
if(totalCount <= 0) m
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this.startIndex = 0; twtkH~`"Q
elseif(startIndex >= totalCount) O5qW*r'
this.startIndex = indexes %x}&=zx0*1
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[indexes.length - 1]; '9
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elseif(startIndex < 0) &{E`=4T2
this.startIndex = 0; _+\:OB[Y
else{ 9rTz N
this.startIndex = indexes nx-1*
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[startIndex / pageSize]; (D>y6r>r
} Ni!;-,H+E
} k%]DT.cE
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publicint getNextIndex(){ =@JS88+
int nextIndex = getStartIndex() + n</k/Mk}
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pageSize; c.(Ud`jc
if(nextIndex >= totalCount) ZD)0P=%
return getStartIndex(); 6Q2orn[
else ,2,SG/BB
return nextIndex; XLZ j
} B:?#l=FL
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publicint getPreviousIndex(){ U=F-]lD
int previousIndex = getStartIndex() - 4|6&59?pnc
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pageSize; uNe}"hs
if(previousIndex < 0) Nmp>UE,7[
return0; -@ZzG uS(
else )X~Pr?52?
return previousIndex; j|[(*i%7|
} h4aygc
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