Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 5>VX]nE3!
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 ?kF?
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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 3sl6$NKo
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 xiqeKoAD
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分页支持类: C;_0 0EQ=
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java代码: -U|Z9sia
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package com.javaeye.common.util; i*T
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import java.util.List; ;"8BbF.
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publicclass PaginationSupport { NIp]n[=.q
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publicfinalstaticint PAGESIZE = 30; 6!([Hu#= *
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privateint pageSize = PAGESIZE; >1` '5A}s
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privateList items; _.I58r
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privateint totalCount; "@t bm[
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privateint[] indexes = newint[0]; 7t/Y5Qf
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privateint startIndex = 0; & u6ydN1xe
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public PaginationSupport(List items, int A.~wgJDO
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totalCount){ .0MY$ 0s
setPageSize(PAGESIZE); f*VXg[&\\F
setTotalCount(totalCount); v4Kf{9q#
setItems(items); tqjjn5!
setStartIndex(0); 0 1NP
} >4os%T
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public PaginationSupport(List items, int -C* 6>$A
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totalCount, int startIndex){ **.23<n^W
setPageSize(PAGESIZE); s|X_:3\x
setTotalCount(totalCount); :NB.ib@*
setItems(items); t$?#@8Yk
setStartIndex(startIndex); R83PHM
} 'lOQb)
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public PaginationSupport(List items, int &kT!GU^n
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totalCount, int pageSize, int startIndex){
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setPageSize(pageSize); lwIxn1n
setTotalCount(totalCount); G2b"R{i/,
setItems(items); Bm<tCN-4
setStartIndex(startIndex); q_[`PYT
} \S{ihS@J
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publicList getItems(){ uuL(BUGt-
return items; a %?v/Ku
} XJk~bgO*
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publicvoid setItems(List items){ ,$RXN8x1
this.items = items; q Ll4t/p
} N2lz{
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publicint getPageSize(){ ?a'EkZ.dB
return pageSize; TP)o0U
} j,z)x[3}
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publicvoid setPageSize(int pageSize){ Mhc5<~?
this.pageSize = pageSize; MM( ,D&
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} Nnoj6+b
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publicint getTotalCount(){ wNUcL*n
return totalCount; E )2/Vn2
} fB'Jo<C
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publicvoid setTotalCount(int totalCount){ 8?|W-rN
if(totalCount > 0){ 'pF$6n;
this.totalCount = totalCount; S"`{ JCW$
int count = totalCount / jc@=
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pageSize; /+WC6&
if(totalCount % pageSize > 0) %ofq
count++; ,wy;7T>ODd
indexes = newint[count]; Y@qugQM>
for(int i = 0; i < count; i++){ ^N`KT
indexes = pageSize * yN06` =
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} J?tnS6V
}else{ $-<yX<.
this.totalCount = 0; k0TQFx.A
} fG{3S:TQq
} Cv
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publicint[] getIndexes(){ 3_T'0x\FP
return indexes; u=E &jL5U
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publicvoid setIndexes(int[] indexes){ $U(D*0+o/
this.indexes = indexes; mxe\+j#
} >
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publicint getStartIndex(){ ^x_.3E3Q
return startIndex; a
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} g;:3I\ L
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publicvoid setStartIndex(int startIndex){ OT"j V
if(totalCount <= 0) B%o%%A8*g
this.startIndex = 0; =PnNett}a
elseif(startIndex >= totalCount) !~j9Oc^
this.startIndex = indexes )]Sf|@K]
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[indexes.length - 1]; auM1k]
elseif(startIndex < 0) YF %]%^n
this.startIndex = 0; nhd.c2t\
else{ M3dUGM
this.startIndex = indexes "u{ymJ]t
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[startIndex / pageSize]; -W:@3\{
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} U8%IpI;
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publicint getNextIndex(){ 5bol)Z9BO
int nextIndex = getStartIndex() + =w:H9uj6F
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pageSize; #kJ8 qN
if(nextIndex >= totalCount) O.aAa5^uh
return getStartIndex(); ,V&E"D{u
else x/0x&la
return nextIndex; rERtOgi
} */vid(P77
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publicint getPreviousIndex(){ "kucFf f
int previousIndex = getStartIndex() - 'z+Pa^)v
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pageSize; ONc#d'-L
if(previousIndex < 0) 8zwH^q[`r
return0; F'_z$,X6
else .li)k[] ts
return previousIndex; #X6=`Xe#
} U)3?&9H
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} 2"o<>d
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