Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 kDr0D$iE
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 -(+/u .
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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 QyX ?
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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 9% AL f 9
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分页支持类: aqAWaO
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java代码: N>4uqFo
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package com.javaeye.common.util; VC@{cVT
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import java.util.List; CJu3h&Rp
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publicclass PaginationSupport { Qs.g%
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publicfinalstaticint PAGESIZE = 30; pn6!QpV5
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privateint pageSize = PAGESIZE; ?H_'L4Wv
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privateList items; R)?zL;,x
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privateint totalCount; RxVf:h'l
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privateint[] indexes = newint[0]; 1Q ^YaHzuW
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privateint startIndex = 0; aj<=]=hr
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public PaginationSupport(List items, int ` 'y[i
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totalCount){ $}G03G@
setPageSize(PAGESIZE); 1k}U+
setTotalCount(totalCount); HrZ\=1RB
setItems(items); #}rv)
setStartIndex(0); Q@-7{3
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public PaginationSupport(List items, int a}+7MEUmZ/
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totalCount, int startIndex){ Cq,ox'kGl
setPageSize(PAGESIZE); YdK]%%
setTotalCount(totalCount); R~],5_|
setItems(items); 3./4] _p
setStartIndex(startIndex); RrDNEwAr
} zp2IpYQ,3
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public PaginationSupport(List items, int (&G4@V d
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totalCount, int pageSize, int startIndex){ jtk2>Ol
setPageSize(pageSize); /M-%]sayj
setTotalCount(totalCount); Jy x6{Oj
setItems(items); / ` 7p'i
setStartIndex(startIndex); ;@@1$mzK
} yH8
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publicList getItems(){ +Zx+DW cq
return items; z6K"}C%
} qd B@P
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publicvoid setItems(List items){ _tg&_P+kV
this.items = items; MU^7(s="
} U'nz3
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publicint getPageSize(){ }7Si2S
return pageSize; 1X4v:rI
} #qk A*WP
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publicvoid setPageSize(int pageSize){ | 1Fy
this.pageSize = pageSize; PEPBnBA&1
} c8sY#I
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publicint getTotalCount(){ a(X?N.w
return totalCount; p
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publicvoid setTotalCount(int totalCount){ O4kBNUI/
if(totalCount > 0){ Y" s1z<?
this.totalCount = totalCount; Dq!Vo ;s2
int count = totalCount / -i@1sNx&'
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pageSize; $up.<qzj
if(totalCount % pageSize > 0) 8Hf!@p6R+
count++; xS` %3+|
indexes = newint[count]; bmEo5f~C!
for(int i = 0; i < count; i++){ {|%N
indexes = pageSize * %v\0Dm+A
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} +k'5W1e
}else{ bmotR8d
this.totalCount = 0; &UUIiQm~
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} "SyAOOZ
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publicint[] getIndexes(){ <JKRdIx&1
return indexes; LXaT_3;
} /a\6&Eb
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publicvoid setIndexes(int[] indexes){ Efb>ZQ
this.indexes = indexes;
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} 4!<8Dd
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publicint getStartIndex(){ 5B!l6ST
return startIndex; BF2,E<^A
} Dx =ms^oN5
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publicvoid setStartIndex(int startIndex){ ^zHBDRsb2F
if(totalCount <= 0) 15_OtK
this.startIndex = 0; _PrK6M@"L
elseif(startIndex >= totalCount) nZa.3/7dJ
this.startIndex = indexes z!5^UD8"W
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[indexes.length - 1]; sn&y;Vc[$
elseif(startIndex < 0) `'[u%U E
this.startIndex = 0; LQ"56PP<
else{ *ta
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this.startIndex = indexes SIjdwr!+ZZ
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[startIndex / pageSize]; Lc6Wj'G
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} a&~d,vC
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publicint getNextIndex(){ \X5{>nNh
int nextIndex = getStartIndex() + bo rt2k
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pageSize; rl9YB %P
if(nextIndex >= totalCount) DPJ#Y -0
return getStartIndex(); M"2Tuwz
else ~k?7XF I
return nextIndex; L,| 60*
} u-3A6Q
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publicint getPreviousIndex(){ Jz
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int previousIndex = getStartIndex() - Q0'xn
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pageSize; @.T
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if(previousIndex < 0) "o/:LCE
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else &,2h=H,M
return previousIndex; 7jT]J
} 1q<BYc+z
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抽象业务类 LFob1HH*8
java代码: 9D++SU2:}
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/** hm >JBc:n-
* Created on 2005-7-12 `uy)][j-
*/ ulV)X/]1
package com.javaeye.common.business; xz5 Jli
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import java.io.Serializable; F6R+E;"4R'
import java.util.List; 5\}A8Ng
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import org.hibernate.Criteria; 0&2(1
import org.hibernate.HibernateException; HDZB)'I
import org.hibernate.Session; abkl)X>k
import org.hibernate.criterion.DetachedCriteria; W"+*%x
import org.hibernate.criterion.Projections; vFLQq,?Nh
import blNJ
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org.springframework.orm.hibernate3.HibernateCallback; "Q6oPDX(
import xal+buOiP
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org.springframework.orm.hibernate3.support.HibernateDaoS %4Cs
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upport; L5!aLv#
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import com.javaeye.common.util.PaginationSupport; ik)T>rYg0
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public abstract class AbstractManager extends bmVksi2b
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HibernateDaoSupport { 7{=/rbZT?
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privateboolean cacheQueries = false; SYRr|Lg
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privateString queryCacheRegion; ra=U,
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publicvoid setCacheQueries(boolean wUj[c7Y%
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cacheQueries){ Fg<$;p
this.cacheQueries = cacheQueries; Nw[TP
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} ^WQ.' G5Q
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publicvoid setQueryCacheRegion(String hp+=UnW
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queryCacheRegion){ awh<CmcZ
this.queryCacheRegion = 9HrT>{@
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queryCacheRegion; , f{<
} WzZ<ZCHm
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publicvoid save(finalObject entity){ Ya{$:90(4
getHibernateTemplate().save(entity); H)z}6[`
}
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publicvoid persist(finalObject entity){ TeaP\a
getHibernateTemplate().save(entity); Q.X)QCp#r
} b{JcV
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publicvoid update(finalObject entity){ 2\80S[f
getHibernateTemplate().update(entity); }A,9`
} ekC
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publicvoid delete(finalObject entity){ _ K["qm{X_
getHibernateTemplate().delete(entity); -J*BY2LU3f
} U Hh
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publicObject load(finalClass entity, ,Z*&QR
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finalSerializable id){ N\{Xhr7d
return getHibernateTemplate().load nR'!Ui
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(entity, id); .anXsjD%W
} zLEl/yPE
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publicObject get(finalClass entity, tb36c<U-
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finalSerializable id){ TLbnG$VQS
return getHibernateTemplate().get 8AL`<8$
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(entity, id); n4 A_vz
} sI\v}$(~
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publicList findAll(finalClass entity){ _wMx KM
return getHibernateTemplate().find("from e>z
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" + entity.getName()); ,9;RP/"7
} yu3: Hv}
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publicList findByNamedQuery(finalString \Gm$hTvB&
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namedQuery){ 0?c2=Y
return getHibernateTemplate WOBLgM,|
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().findByNamedQuery(namedQuery); j#4 Iu&YJ
} 5B6twn~[
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publicList findByNamedQuery(finalString query, {jdtNtw
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finalObject parameter){ ?RW7TWf
return getHibernateTemplate A#NJ8_
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().findByNamedQuery(query, parameter); n!Hj4~T0
} Z*uv~0a>9Q
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publicList findByNamedQuery(finalString query, Z[9)
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finalObject[] parameters){ s'$5]9$S
return getHibernateTemplate b0X<)1O
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().findByNamedQuery(query, parameters); U-^qVlw
} M9[52D!{
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publicList find(finalString query){ ?X
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return getHibernateTemplate().find Qc4r?7S<
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(query); 1f}YKT
} ZVu_E.4.
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publicList find(finalString query, finalObject =n@"lY u[
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