Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 IJ2>\bW_p
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 +8 }p-<a
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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 ;T|hNsSt
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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 TIVrbO\!o
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分页支持类: QvDD
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java代码: Qg5-I$0
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package com.javaeye.common.util; o0FVVS l
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import java.util.List; ,_U3p ,
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publicclass PaginationSupport { y R_x:,|g
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publicfinalstaticint PAGESIZE = 30; }Oe9Zq
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privateint pageSize = PAGESIZE; gB}UzEj^<
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privateList items; 7gP8K`w?[
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privateint totalCount; 4qmaL+Q
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privateint[] indexes = newint[0]; I>%@[h,+
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privateint startIndex = 0; Bw*6X`'Q
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public PaginationSupport(List items, int +I_p\/J?w/
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totalCount){ JTfG^Nv>K
setPageSize(PAGESIZE); 6^vHFJ$
setTotalCount(totalCount); >
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setItems(items); WG(%Pkowv
setStartIndex(0); `ILO]+`5
} 1`l10f qU
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public PaginationSupport(List items, int +,A7XBn
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totalCount, int startIndex){ _%6Vcy
setPageSize(PAGESIZE); RMO6k bfP
setTotalCount(totalCount); YRs32vVz
setItems(items); <s(<ax30
setStartIndex(startIndex); <O30X
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} X7{ h/^
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public PaginationSupport(List items, int Kk<MS$Ov
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totalCount, int pageSize, int startIndex){ :}}~ $$&
setPageSize(pageSize); }5a$Ka-
setTotalCount(totalCount); @T8$/
setItems(items); _.G p}0a
setStartIndex(startIndex); `o,D[Jd
} g
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publicList getItems(){ d vTsbs/6
return items; (v$$`zh
} z8\;XR
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publicvoid setItems(List items){ gyAKjLqqpi
this.items = items; R6/vhze4L2
} .*+KQA8
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publicint getPageSize(){ +7|Q d}\X
return pageSize; N>'|fNx]
} Bh*7uNM
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publicvoid setPageSize(int pageSize){ ~76qFZe-
this.pageSize = pageSize; UJ8V%0
} QwL'5ws{q
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publicint getTotalCount(){ >7^i>si
return totalCount; Bm&% N?9
} 9Di@r!Db
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publicvoid setTotalCount(int totalCount){ bcCCvV}6WZ
if(totalCount > 0){ e-.s63hm
this.totalCount = totalCount; b3RCsIz
int count = totalCount / IoI
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pageSize; "Ooc;xD3<
if(totalCount % pageSize > 0) F"*.Qq
count++; E8QY6 gKF
indexes = newint[count]; BvA09lK
for(int i = 0; i < count; i++){ @3@oaa/v
indexes = pageSize * 3vK,vu q
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} %x G3z7;
}else{ 2|C(|fD4
this.totalCount = 0; )^'g2gVK+p
} "2~%-;c
} [O52Bn
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publicint[] getIndexes(){ CYCG5)<9
return indexes; @|cfFT
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} |#6))Dh
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publicvoid setIndexes(int[] indexes){ 'eRJQ*0F
this.indexes = indexes; <#r/4a"V
} hL8GW> `a
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publicint getStartIndex(){ D^~G(m;-
return startIndex; ZSo#vQ
} 7^|,l
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publicvoid setStartIndex(int startIndex){ 6]*~!al?
if(totalCount <= 0) Q5:8$
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this.startIndex = 0; z#!}4@_i3
elseif(startIndex >= totalCount) =Hs[peO*
this.startIndex = indexes \&S-lsLY
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[indexes.length - 1]; _ Db05:r@
elseif(startIndex < 0) :~1sF_
this.startIndex = 0; ;=?f0z<
else{ xc HG5bg|
this.startIndex = indexes T1&^IO-F7$
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[startIndex / pageSize]; ]U8VU
} *Ou )P9~-L
} x/pM.NZF1
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publicint getNextIndex(){ Gc'CS_L
int nextIndex = getStartIndex() + ;GgW&*|
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pageSize; 2unaK<1s
if(nextIndex >= totalCount) Qmk}smvH
return getStartIndex(); _ `RCY^t
else P})Iwk|Z
return nextIndex; yl=_ /'*
} l-Q.@hG
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publicint getPreviousIndex(){ \VTNXEw*G
int previousIndex = getStartIndex() - *XCid_{(
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pageSize; .[E"Kb}=
if(previousIndex < 0) NX?IM8\t
return0; ]ZB^Hi_
else J9kmIMq-C
return previousIndex; soH
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} 9<9 c^2
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} QX'EMyK$
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抽象业务类 }nQni?
java代码: !&3iZQGWv
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/** WCg*TL}
* Created on 2005-7-12 |7K[+aK
*/ cPemrNxydN
package com.javaeye.common.business; 2
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import java.io.Serializable; rl\$a2_+
import java.util.List; :`9hgd/9
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import org.hibernate.Criteria; 6%p$C
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import org.hibernate.HibernateException; UogkQ& B
import org.hibernate.Session; <h$Nh0
import org.hibernate.criterion.DetachedCriteria; ,Tb~+z|-[
import org.hibernate.criterion.Projections; 5,>Of~YN
import $/*6tsR
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org.springframework.orm.hibernate3.HibernateCallback; "w)Y0Qq*z
import MpV3.
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org.springframework.orm.hibernate3.support.HibernateDaoS DA/l`Pn
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upport; Lv`*+;1K
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import com.javaeye.common.util.PaginationSupport; pT90TcI2
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public abstract class AbstractManager extends "5KJ /7q!
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HibernateDaoSupport { ]%{.zl!
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privateboolean cacheQueries = false; +>em
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privateString queryCacheRegion; <K~> :4c
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publicvoid setCacheQueries(boolean 14[+PoF^A
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cacheQueries){ `A]CdgA
this.cacheQueries = cacheQueries;
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} (1
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publicvoid setQueryCacheRegion(String AoaRlk-#
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queryCacheRegion){ wD|3Czc
this.queryCacheRegion = [j6EzMN
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queryCacheRegion; u|!On
} o -< 5<
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publicvoid save(finalObject entity){ I)xB I~x
getHibernateTemplate().save(entity); -_m>C2$6x
} =!axQ[)A
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publicvoid persist(finalObject entity){ ZP@or2No%
getHibernateTemplate().save(entity); nkKiYr
} z (N3oBW
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publicvoid update(finalObject entity){ Oz\mIVC#
getHibernateTemplate().update(entity); 6sRe. ct<