Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 MFuI&u!g:
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 '.,.F0{x
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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 "6Uj:9
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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 VhgEG(Ud
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分页支持类: ton`ji\^
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java代码: uFZB8+
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package com.javaeye.common.util; 0z7mre^Q
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import java.util.List; G6{A[O[
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publicclass PaginationSupport { ;bX
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publicfinalstaticint PAGESIZE = 30; P1 stL,
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privateint pageSize = PAGESIZE; s$x] fO
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privateList items; X@U1Ri
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privateint totalCount; c0q)
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privateint[] indexes = newint[0]; =@=R)C4f*
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privateint startIndex = 0; gecT*^
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public PaginationSupport(List items, int jDXGm[U
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totalCount){ OB^?cA>
setPageSize(PAGESIZE); `sy &dyM
setTotalCount(totalCount); 3,I >.3
setItems(items); b.q"s6u
setStartIndex(0); /(ju
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public PaginationSupport(List items, int cjC6\.+l3
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totalCount, int startIndex){ |!5T+H{Sj
setPageSize(PAGESIZE); 9w;J7jgOT!
setTotalCount(totalCount); :;q_f+U
setItems(items); .y9rM{h}b
setStartIndex(startIndex); fhIj+/{_O
} ~Z6p3#
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public PaginationSupport(List items, int p[F=L P
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totalCount, int pageSize, int startIndex){ }"B? 8T@_~
setPageSize(pageSize); tW"ptU^9)
setTotalCount(totalCount); k5QD5/Ej
setItems(items); 'oZn<c`
setStartIndex(startIndex); kJi&9
} ivz9R'
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publicList getItems(){ pkf OM"5'
return items; 2vdQ&H4
} *a,.E6C*
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publicvoid setItems(List items){ 7h9[-d6
this.items = items; 4O_+4yS
} 3r:)\E+Q_
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publicint getPageSize(){ <&s)k
return pageSize; w[7.@ %^[
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publicvoid setPageSize(int pageSize){ j /dE6d
this.pageSize = pageSize; Z F yX@#B9
} PT@e),{~o9
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publicint getTotalCount(){ 4Re@ QOZ
return totalCount; q\'P1~
} Jv^cOc
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publicvoid setTotalCount(int totalCount){ T~~[a|bLa
if(totalCount > 0){ _O)2
this.totalCount = totalCount; Ms'TC;&PS
int count = totalCount / )
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pageSize; LH/&\k
if(totalCount % pageSize > 0) Ik-E4pxKo
count++; X]pWvQ Q]
indexes = newint[count]; Hl2f`GZ
for(int i = 0; i < count; i++){ CpRu*w{
indexes = pageSize * ~? FrI
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} B?lBO
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}else{ 56=K@$L {F
this.totalCount = 0; W^d4/]
} _{*$>1q
} ,KhMzE8_a
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publicint[] getIndexes(){ nze1]3`
return indexes; g"!#]LLe
} ,;cel^.b
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publicvoid setIndexes(int[] indexes){ jQxPOl$-
this.indexes = indexes; <qq'h
} UC+7-y,
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publicint getStartIndex(){ x<*IF,o
return startIndex; aEEz4,x_
} uVq5fT`B
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publicvoid setStartIndex(int startIndex){ b1+hr(kMRM
if(totalCount <= 0) 9oje`Ay
this.startIndex = 0; #7~tL23}]
elseif(startIndex >= totalCount) I*:qGr+ WJ
this.startIndex = indexes J|"nwY}a9
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[indexes.length - 1]; pqH(
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elseif(startIndex < 0) 3Zaq#uA
this.startIndex = 0; x7KcO0F{
else{ E)80S.V
this.startIndex = indexes o,CA;_
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[startIndex / pageSize]; bQXc IIa{
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} Wd^lt7(j
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publicint getNextIndex(){ FYXw$7'l
int nextIndex = getStartIndex() + T\2) $
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pageSize; +U+aWk
if(nextIndex >= totalCount) j(Fa=pi
return getStartIndex(); /zl3&~4
else OAW=Pozr9
return nextIndex; jiwpDB&