Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 9qS~-'&q#
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 _7es_w}R
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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 |PR8P!'
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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 GlkTpX^b
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分页支持类: x01 n
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java代码: +{U0PI82
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package com.javaeye.common.util; Hx[YHu
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import java.util.List; E~vM$$O$
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publicclass PaginationSupport { wSoIU,I
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publicfinalstaticint PAGESIZE = 30; _N!L?b83P
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privateint pageSize = PAGESIZE; n{sF'n</
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privateList items; ;NNYJqWd^]
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privateint totalCount; o %GVg
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privateint[] indexes = newint[0]; &Omo\Oq&W>
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privateint startIndex = 0; 02B *cz_K
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public PaginationSupport(List items, int Xc"l')1H
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totalCount){ i) v
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setPageSize(PAGESIZE); {8+FxmH
setTotalCount(totalCount); ROcI.tL
setItems(items); fA"N5qQI(
setStartIndex(0); "Bl]_YPv
} ;e,_F/@`
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public PaginationSupport(List items, int to9~l"n.s
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totalCount, int startIndex){ y4sKe:@2
setPageSize(PAGESIZE); |@'/F #T
setTotalCount(totalCount); I/YBL
setItems(items); \fC)]QZ
setStartIndex(startIndex); ptJ58U$Bb
} [Q"*I2&
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public PaginationSupport(List items, int >YG1sMV-J
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totalCount, int pageSize, int startIndex){ 6ub-NtVu
setPageSize(pageSize); NGQBOV
setTotalCount(totalCount); UuXq+HYR
setItems(items); P?|F+RoX$
setStartIndex(startIndex); hr@c7/L
} Zo$,{rl
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publicList getItems(){ 2J?ON|2M
return items; 9*s''=
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publicvoid setItems(List items){ G<1)NT\u
this.items = items; ."`mh&+`
} 'T=$Q%Qv
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publicint getPageSize(){ r?cDyQE
return pageSize; K]c|v
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} scr`] tD
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publicvoid setPageSize(int pageSize){ %[3?vX
this.pageSize = pageSize; HC1jN8WDY
} 2ed4xhV
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publicint getTotalCount(){ R<\5q%@G
return totalCount;
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} KD TG9KC
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publicvoid setTotalCount(int totalCount){ .`w[A
if(totalCount > 0){ zNTcy1Sthk
this.totalCount = totalCount; iakqCjV
int count = totalCount / dU4 h
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pageSize;
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if(totalCount % pageSize > 0) {B;<R1
count++; tj ONN(K`
indexes = newint[count]; h\qQ%|X
for(int i = 0; i < count; i++){ Cu2eMUGt
indexes = pageSize * Y9}5&#
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} ,[gu7z^|
}else{ %IAZU c
this.totalCount = 0; k[_)5@2
} vI84=n
} o<1a]M|
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publicint[] getIndexes(){ A(Tqf.,G
return indexes; i^<P@ |q
} K;ncviGu
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publicvoid setIndexes(int[] indexes){ LUPh!)8
this.indexes = indexes; v3zd>fDnRp
} Z~X \Z.
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publicint getStartIndex(){ f&=WgITa
return startIndex; FCr^D$_w
} -_%8Q#"
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publicvoid setStartIndex(int startIndex){ `Zdeq.R]
if(totalCount <= 0) G
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this.startIndex = 0; XIep3l*
elseif(startIndex >= totalCount) eT!*_.' e
this.startIndex = indexes DHI%R<
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[indexes.length - 1];
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elseif(startIndex < 0) *|Bu 7nwg
this.startIndex = 0; rnOg;|u8
else{ vk:k ~
this.startIndex = indexes NE~R&ym9
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[startIndex / pageSize]; Xl/SDm_p
} rofGD9f
} ~8oti4
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publicint getNextIndex(){ y3Z\ Y[
int nextIndex = getStartIndex() + OuZPgN
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pageSize; hXAgT!ZD
if(nextIndex >= totalCount) "d5nVO/
return getStartIndex(); H\>0jr`
else rd
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return nextIndex; R5"5Z?'
} a+-X\qN
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publicint getPreviousIndex(){ UnE[FYx
int previousIndex = getStartIndex() - tyI!y~-z
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pageSize; ^Rpy5/d
if(previousIndex < 0) nO\c4#ce
return0; 8\lRP,-
else mJ #|~I*Z-
return previousIndex; z+5ZUS2~&
} `)aIFAW
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} xs}3=&c(
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抽象业务类 7Rq|N$y.3
java代码: n5NwiSE
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/** IG(1h+5R(
* Created on 2005-7-12 pzcl@
*/ o9XT_!Cwg
package com.javaeye.common.business; !
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import java.io.Serializable; rYKGBo8"
import java.util.List; ?cB:1?\j
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import org.hibernate.Criteria; ob_*fP
import org.hibernate.HibernateException; m~f J_
import org.hibernate.Session; .7K<9K +P
import org.hibernate.criterion.DetachedCriteria; L,/(^0;
import org.hibernate.criterion.Projections; Ovhd%qV;Y
import ]ZI ?U<0
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org.springframework.orm.hibernate3.HibernateCallback; l ~C=yP(~
import w=Yc(Y:h
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org.springframework.orm.hibernate3.support.HibernateDaoS US'rhSV
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upport; xX:N-
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import com.javaeye.common.util.PaginationSupport; =jWjUkm2
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public abstract class AbstractManager extends }o d5kK;
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HibernateDaoSupport { {Q(R#$)5+
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privateboolean cacheQueries = false; n#
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privateString queryCacheRegion; +M{A4nYY|1
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publicvoid setCacheQueries(boolean \2^_v'
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cacheQueries){ w|G4c^KH
this.cacheQueries = cacheQueries; 0Q{^BgW
} ?.~hex#M@
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publicvoid setQueryCacheRegion(String N]dsGvX
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queryCacheRegion){ l\DcXgD
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this.queryCacheRegion = xV\mS+#
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queryCacheRegion; O?OG`{k
} *>,#'C2
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publicvoid save(finalObject entity){ T$pBgS>
getHibernateTemplate().save(entity); {x\lK;
} .Gcs/PN
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publicvoid persist(finalObject entity){ ]m=2 $mK
getHibernateTemplate().save(entity); ~a06x^=j
} YsA.,
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publicvoid update(finalObject entity){ mhi^zHpa
getHibernateTemplate().update(entity); 6!A+$"
} grZ?F~P8
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publicvoid delete(finalObject entity){ !)//b]
getHibernateTemplate().delete(entity); g&?RQ
} !WgVk7aP`
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publicObject load(finalClass entity, P+gYLX8
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finalSerializable id){ \ sc's7
return getHibernateTemplate().load P^-daRb
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(entity, id); ~ \o
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} l|"SM6
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publicObject get(finalClass entity, e .(
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finalSerializable id){ zi?G
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return getHibernateTemplate().get F- l!i/
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(entity, id); @q++eGm\Q
}
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publicList findAll(finalClass entity){ H+?@LPV*N
return getHibernateTemplate().find("from ykBq?Vr
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" + entity.getName()); Kn`-5{1B|
} 586lN22xM
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publicList findByNamedQuery(finalString z$b'y;k
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namedQuery){ $guaUe[x
return getHibernateTemplate P0O=veCf
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().findByNamedQuery(namedQuery); @lu`oyM
} /=+Bc=<lZ
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publicList findByNamedQuery(finalString query, 5hg
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finalObject parameter){ +WfO2V.
return getHibernateTemplate 1 R,?kUa
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().findByNamedQuery(query, parameter); o?((FW5.;
} <:!;79T\
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publicList findByNamedQuery(finalString query, )^[PW&=W|x
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finalObject[] parameters){ _d*QA{
return getHibernateTemplate 9 =zZ,dg
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().findByNamedQuery(query, parameters); t(r}jU=qw
} vI5'npM
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publicList find(finalString query){ %C=?Xhnv
return getHibernateTemplate().find /PTk296@
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(query); }U_z XuUz
} NKRI|'Y,
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