Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 &[}bHX/
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 /Zap'S/
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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 K 38e,O
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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 N2vSJ\u
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分页支持类: Fx*iAH\e
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java代码: V6B`q;lA
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package com.javaeye.common.util; YD_hg#=n
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import java.util.List; HKbyi~8N=
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publicclass PaginationSupport { :3J,t//c
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publicfinalstaticint PAGESIZE = 30; U1}-]^\
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privateint pageSize = PAGESIZE; :rd{y`59>&
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privateList items; PTrKnuM\J_
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privateint totalCount; tBC`(7E}
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privateint[] indexes = newint[0]; Is1P,`*!
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privateint startIndex = 0; f1s3pr??
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public PaginationSupport(List items, int
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totalCount){ SO @d\H
setPageSize(PAGESIZE); j5\z7
setTotalCount(totalCount); @+Ch2Lod
setItems(items); O*0%AjT6
setStartIndex(0); Q*4{2oQ
} 'D_a2xo0
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public PaginationSupport(List items, int Nz/PAs7g6
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totalCount, int startIndex){ _L?MYkD
setPageSize(PAGESIZE); by07l5
setTotalCount(totalCount); 'Ur1I"
setItems(items); slUnB6@Q
setStartIndex(startIndex); 6Qtyv
} 3.?G,%S5.$
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public PaginationSupport(List items, int de7
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totalCount, int pageSize, int startIndex){ 2{U5*\FhVX
setPageSize(pageSize); ob3)bI oM
setTotalCount(totalCount); ^mH:8_=(.
setItems(items); ;|qbz]t2(
setStartIndex(startIndex); >EE}P|=-
} L6d^e53AP
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publicList getItems(){ t@X{qm:%Z
return items; c,>y1%V*S{
} )6U6~!k
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publicvoid setItems(List items){ uNKf!\Y
this.items = items; u@]rR&h`
} oU l0w~Xn
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publicint getPageSize(){ 2CMWJi
return pageSize; q$7w?(Lk
} hZIbN9)8A
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publicvoid setPageSize(int pageSize){ ~"J7=u1o
this.pageSize = pageSize; :|\[a0ZL
} =W*Ro+wWb
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publicint getTotalCount(){ vRkVPkZ6|
return totalCount; r\A|fiL
} 1y3)ogL
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publicvoid setTotalCount(int totalCount){ y(<+=
if(totalCount > 0){ we0haK
this.totalCount = totalCount; Skl:~'W.&|
int count = totalCount / -!lSk?l
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pageSize; 63`5A3rii
if(totalCount % pageSize > 0) (I/ZI'Ydy
count++; :jAsm[
indexes = newint[count]; :]JMsa6
for(int i = 0; i < count; i++){ %0p9\I
indexes = pageSize * !k<k]^Z\
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} }0Q
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}else{ FKtG
this.totalCount = 0; /hur6yI8
} naiQ$uq0
} !q~f;&rg
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publicint[] getIndexes(){ (zPsA
return indexes; ~\*wt( o
} J8B0H1
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publicvoid setIndexes(int[] indexes){ %CZGV7JdA
this.indexes = indexes; _1jbNQa
} #nQboTB@
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publicint getStartIndex(){ Spw^h=o
return startIndex; KBoW(OP4'
} Qe0?n
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publicvoid setStartIndex(int startIndex){ peew<SX
if(totalCount <= 0) )8taMC:H^
this.startIndex = 0; |2GrOM&S
elseif(startIndex >= totalCount) z%]3`_I
this.startIndex = indexes (tF/2cZk
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[indexes.length - 1]; 8PqlbLo1
elseif(startIndex < 0) sY[!=` @
this.startIndex = 0; O))j
else{ vl!o^_70(
this.startIndex = indexes \'X-><1
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[startIndex / pageSize]; y#P_ }Kfo
} f7a"}.D$
} [,Y;#;
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publicint getNextIndex(){ /GO((v+J
int nextIndex = getStartIndex() + *o6QBb
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pageSize; gF]IAZCi
if(nextIndex >= totalCount) KkJE-k*D+w
return getStartIndex(); vos-[$
else !-7<x"avm
return nextIndex; bWZ
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} - v=ndJ.
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publicint getPreviousIndex(){ #UnGU,J
int previousIndex = getStartIndex() - {;38&