Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 S6 F28 d[j
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 )#9R()n!
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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 LI[ w?6B
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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=VPw5"E
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分页支持类: f i-E_
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java代码: b$P=rIB
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package com.javaeye.common.util; odPq<'V|AY
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import java.util.List; +*3\C!
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publicclass PaginationSupport { 00'R1q4
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publicfinalstaticint PAGESIZE = 30; 8$3G c"=
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privateint pageSize = PAGESIZE; %|[+\py$Q
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privateList items; RsS?ibozl
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privateint totalCount; bWK}oYB*
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privateint[] indexes = newint[0]; p]uwGWDI
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privateint startIndex = 0; ]<mXf~zg
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public PaginationSupport(List items, int
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totalCount){ le?hCPHkp
setPageSize(PAGESIZE); xI}h{AF7
setTotalCount(totalCount); n%I%O7
setItems(items); r5z_{g
setStartIndex(0); +(VHnxNQs
} eN@V?G26K
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public PaginationSupport(List items, int F{\MIuoy
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totalCount, int startIndex){ g4<w6eB
setPageSize(PAGESIZE); ,Y
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setTotalCount(totalCount); +1Oi-$
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setItems(items); ?<\K!dA
setStartIndex(startIndex); wn[q?|1
} k/W$)b:Of`
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public PaginationSupport(List items, int lL~T@+J~
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totalCount, int pageSize, int startIndex){ +]/_gz
setPageSize(pageSize); iCCY222:
setTotalCount(totalCount); +5Yc/Qp
setItems(items); 2~+_T
setStartIndex(startIndex); r#wMd9])
} !']=7It{
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publicList getItems(){ CF3Z`xD
return items; }wrZP}zM>
} ,{A-<=6t
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publicvoid setItems(List items){ jQOY \1SR
this.items = items; Q+E%"`3V4l
} r'M|mQ$s>
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publicint getPageSize(){ oop''6`C%
return pageSize; IC>OxYg*
} |*"uj
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publicvoid setPageSize(int pageSize){ E~]8>U?V
this.pageSize = pageSize; -J4?Km
} ^EE3E'
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publicint getTotalCount(){ >I AwNr
return totalCount; ?"\`u;
} vbzeabm
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publicvoid setTotalCount(int totalCount){ .?9+1.`
if(totalCount > 0){ ?c0OrvM
this.totalCount = totalCount; a02;Zl
int count = totalCount / ?as)vYP
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pageSize; x(h(a#,r
if(totalCount % pageSize > 0) HJ]\VP9Zb
count++; JX(J Z/8B^
indexes = newint[count]; q05_5
for(int i = 0; i < count; i++){ ^ Afq)26D
indexes = pageSize * |&WeXVH E
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}else{ 72@raA#y
this.totalCount = 0; \k_0wt2x1
} :<4:h.gO8
} FW(y#Fmqs
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publicint[] getIndexes(){ 1tU}}l
return indexes; BL6t>
} 8;/`uB:zV
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publicvoid setIndexes(int[] indexes){ DbFTNoVR
this.indexes = indexes; Z=n#XJO15
} 8=OK8UaU
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publicint getStartIndex(){ pUki!TA
return startIndex; JS% &ipm
} kVE%
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publicvoid setStartIndex(int startIndex){ t=J\zyX!
if(totalCount <= 0) 2KMLpO&De
this.startIndex = 0; /`#sp
elseif(startIndex >= totalCount) =XsdR?C
this.startIndex = indexes m{Jo'*%8f
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[indexes.length - 1]; R X:wt
elseif(startIndex < 0) od!"?F
this.startIndex = 0; |\"vHt?@G
else{ qN}kDT
this.startIndex = indexes ~>zml1aJ6
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[startIndex / pageSize]; ork/:y9*y
} |2(z<b&y=
} AYHB?xOpR
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publicint getNextIndex(){ z.n`0`^
int nextIndex = getStartIndex() + % Uybp
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