Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 AH=6xtS-
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 0?,EteR
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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 zCvR/
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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 'U}i<^,c
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分页支持类: >47,Hq:2
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java代码: x6Z$lhZ
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package com.javaeye.common.util; 2b|vb}|t{
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import java.util.List; -]'Sy$,A
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publicclass PaginationSupport { zi*D8!_C
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publicfinalstaticint PAGESIZE = 30; o]Vx6
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privateint pageSize = PAGESIZE; nsgNIE{>gO
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privateList items; 62vz 'b
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privateint totalCount; sMO3eNLn
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privateint[] indexes = newint[0]; XyhOd$)
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privateint startIndex = 0; d\Dxmb]o
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public PaginationSupport(List items, int 2?-}(F;Z
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totalCount){ ^Gs!" Y
setPageSize(PAGESIZE); 3'&]v6|
setTotalCount(totalCount); pm )A*][s
setItems(items); X#eVw|
setStartIndex(0); KQW
} iv;;GW{2
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public PaginationSupport(List items, int |u;5|i
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totalCount, int startIndex){ ~=c^Oo:
setPageSize(PAGESIZE); 9pjk3a
setTotalCount(totalCount); @RaMO#
setItems(items); Wdy2;a<\{
setStartIndex(startIndex); SZwfYY!ft0
} (\R"v^
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public PaginationSupport(List items, int G0*$&G0nb
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totalCount, int pageSize, int startIndex){ 5gJQr%pS
setPageSize(pageSize); ?on3z
setTotalCount(totalCount); b$gDFNa
setItems(items); Uc9Uj
setStartIndex(startIndex); g]d"d
} =ARI*
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publicList getItems(){ _bMs~%?~/
return items; 'Y"q=@Ei9
} NWNgh/9?
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publicvoid setItems(List items){ g?@(+\W
this.items = items; QL\'pW5
} *4(.=k
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publicint getPageSize(){ `pcjOM8u
return pageSize; )(!vd!p5
} 5Vvy:<.la
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publicvoid setPageSize(int pageSize){ y5R6/*;N.
this.pageSize = pageSize; hUlFP
} ^Y'>3o21f
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publicint getTotalCount(){ Z)?"pBv'
return totalCount; AMO{?:8Y;
} TUk1h\.q
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publicvoid setTotalCount(int totalCount){ ZGp8$Y>r
if(totalCount > 0){ &'|bZms g
this.totalCount = totalCount; Bq$bxuhV
int count = totalCount / cCj}{=U
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pageSize; *YDx6\><
if(totalCount % pageSize > 0) v1)jZ.:
count++; :W'1Q2
indexes = newint[count]; w93yhV?
for(int i = 0; i < count; i++){ ].1R~7b
indexes = pageSize * ^|gN?:fA}
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} 52%.^/
}else{ wPG3Ap8L
this.totalCount = 0; I.(
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publicint[] getIndexes(){ e1'_]
return indexes; *~-~kv4-
} ^Nc\D7( l
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publicvoid setIndexes(int[] indexes){ Ig9$ PP+3
this.indexes = indexes; ^,`yt^^A
} `#l_`j=r$
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publicint getStartIndex(){ ]*v%(IGK
return startIndex; pWQ?pTh
} WS,p}:yPZG
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publicvoid setStartIndex(int startIndex){ rN>f"/J
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if(totalCount <= 0) CP={|]>+S
this.startIndex = 0; 2j_L
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elseif(startIndex >= totalCount) {cG&l:-r
this.startIndex = indexes (F#Qu nze
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[indexes.length - 1]; p_mP'
elseif(startIndex < 0) `|]juc
this.startIndex = 0; M\T6cN@m
else{ 1g|H8CA
this.startIndex = indexes KWd]?e)
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[startIndex / pageSize]; 7ZJYT#>b
} fw-LZ][
} Pw+cpM8<
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publicint getNextIndex(){ CaK 0o*D
int nextIndex = getStartIndex() + 1s1$J2LX
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pageSize; okfhd{9
if(nextIndex >= totalCount) gIT"nG=a4
return getStartIndex(); |qZ4h7wL
else Aw >DZ2
return nextIndex;
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} U?.VY@
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publicint getPreviousIndex(){ $e0sa=/
int previousIndex = getStartIndex() - AC
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pageSize; A2htD!3
if(previousIndex < 0) zvSfW#
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return0; E*k=8$Y
else G0<m3 Up
return previousIndex; ek3/`]V:
} 'S&5zwrH
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} ga!t:O@w
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抽象业务类 *n}{)Ef
java代码: [{'` |
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/** 7TlOF
* Created on 2005-7-12 .p <!2
*/ X(N!y"z
package com.javaeye.common.business; Pq !\6s@
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import java.io.Serializable; z,$^|'pP
import java.util.List; Dy0RZF4_
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import org.hibernate.Criteria; joYj`K
import org.hibernate.HibernateException; dTS7l02
import org.hibernate.Session; l8jm7@.E
import org.hibernate.criterion.DetachedCriteria; Sh=z
import org.hibernate.criterion.Projections; v-g2k_o|
import lP0'Zg(
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org.springframework.orm.hibernate3.HibernateCallback; yA=#Ji
import rr9N(AoxW
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org.springframework.orm.hibernate3.support.HibernateDaoS MT}9T
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upport; <08)G7
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import com.javaeye.common.util.PaginationSupport; ZC@Pfba[`
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