Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 |XzqP +t
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 ~rN~Ql%S
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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 ;?"2sS!AHQ
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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 c~[L;_
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分页支持类: zpx
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java代码: 6":=p:PT.
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package com.javaeye.common.util; ~]a:9Ev*
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import java.util.List; \2~Cn c*O
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publicclass PaginationSupport { @2cGx/1#
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publicfinalstaticint PAGESIZE = 30; %b<cJ]F
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privateint pageSize = PAGESIZE; E+k#1c|v$
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privateList items; CKeT%3
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privateint totalCount; UM%]A'h2O"
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privateint[] indexes = newint[0]; *}DCxv
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privateint startIndex = 0; BWV)>
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public PaginationSupport(List items, int =S7Xj`/
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totalCount){ Li)rs<IX;m
setPageSize(PAGESIZE); *f{\ze@5=
setTotalCount(totalCount); yU]NgG=z:-
setItems(items); NK.] yw'
setStartIndex(0); &6V[@gmD
} ;5QdT{$H
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public PaginationSupport(List items, int LldZ"%P
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totalCount, int startIndex){ q9 !)YP+w
setPageSize(PAGESIZE); ;G_{$)P.o
setTotalCount(totalCount); 3BHPD;U
setItems(items); 5'=\$Ob
setStartIndex(startIndex); ?Co)7}N
} MHNuA,cz
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public PaginationSupport(List items, int c&4EO|
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totalCount, int pageSize, int startIndex){ 03Czx `
setPageSize(pageSize); @$o.Z;83`r
setTotalCount(totalCount); {}>s0B
setItems(items); #pDWwnP[rt
setStartIndex(startIndex); Yl}'hRp
} >G`Uc&=
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publicList getItems(){ x -CTMKX
return items; (S MnYh4
} K[{hh;7
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publicvoid setItems(List items){ mmSC0F
this.items = items; ]=Im0s
} 'YKyY:eZ
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publicint getPageSize(){ vZhC_G+tGd
return pageSize; \piB*"ln
} rf@Cz%xDD
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publicvoid setPageSize(int pageSize){ `X;' *E]e
this.pageSize = pageSize; 5D9n>K4|
} (x)}k&B;
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publicint getTotalCount(){ YF)uAJ Ak
return totalCount; } J_"/bB
} _-MILkx\
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publicvoid setTotalCount(int totalCount){ 5B:%##Ug5
if(totalCount > 0){ r>o#h+'AV
this.totalCount = totalCount; w^BF.Nu
int count = totalCount / N+0[p@0
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pageSize; -q&K9ZCl`
if(totalCount % pageSize > 0) yzH(\ x
count++; 8D]&wBR:
indexes = newint[count]; HGiO}|q:
for(int i = 0; i < count; i++){ FqWW[Bgd
indexes = pageSize * Ka4KsJN
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} |!Uul0O
}else{ 6y0CEly>3#
this.totalCount = 0; Cf~vT"
} LdH23\
} ffH]`N
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publicint[] getIndexes(){ J=l\t7w
return indexes; :abpht
} f*%Y]XL;%
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publicvoid setIndexes(int[] indexes){ +hZ{/
this.indexes = indexes; qpEK36Js
} XJSI/jpa@
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publicint getStartIndex(){ H6.
return startIndex; L\cbY6b
} XI5TVxo(q
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publicvoid setStartIndex(int startIndex){ /z)H7s+
if(totalCount <= 0) ##QKXSD
this.startIndex = 0; .EfGL_
elseif(startIndex >= totalCount) /:=,mWoO
this.startIndex = indexes S%Bm4jY
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[indexes.length - 1]; y$,j'B:;4m
elseif(startIndex < 0) =".sCV9"N
this.startIndex = 0; C#l9MxZE
else{ )a=FhSB[G
this.startIndex = indexes 4 (>8tP\Y
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[startIndex / pageSize]; ^D]y<@01
} V\m51H1mqo
} [QZ8M@Gty#
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publicint getNextIndex(){ l0&U7gr
int nextIndex = getStartIndex() + p|`[8uY?
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pageSize; Ib}~Q@?2
if(nextIndex >= totalCount) qX"m"ko
return getStartIndex(); eZbT;
else By;{Y[@rS
return nextIndex; .
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} {P7 I<^,
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publicint getPreviousIndex(){ DQy;W ov
int previousIndex = getStartIndex() - &0Bs?oq_
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pageSize; JTS<n4<a
if(previousIndex < 0) m`!Vryf
return0; D>6vI
else *7`amF-
return previousIndex; "t>WM
} +'`I]K>
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} W5U;{5
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抽象业务类 ;/~%D(
java代码: C%QC^,KL
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/** [E:-$R
* Created on 2005-7-12 ~|R/w%*C
*/ qG8-UOUDt
package com.javaeye.common.business; d$<1Ma}
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import java.io.Serializable; 'Im&&uSkr
import java.util.List; ]%<0V,G
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import org.hibernate.Criteria; )#0Llx!
import org.hibernate.HibernateException; G&\!!i|IQ
import org.hibernate.Session; qYbPF|Y=Z
import org.hibernate.criterion.DetachedCriteria; <xaB$}R
import org.hibernate.criterion.Projections; ,&aD
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import Q^|aix~ K
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org.springframework.orm.hibernate3.HibernateCallback; lFc4| _c g
import z\6/?5D#v
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org.springframework.orm.hibernate3.support.HibernateDaoS kT,2eel
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upport; _/RP3" #
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import com.javaeye.common.util.PaginationSupport; |X0Ys8f
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public abstract class AbstractManager extends [+
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HibernateDaoSupport { J%ue{PL7
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privateboolean cacheQueries = false; }<
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privateString queryCacheRegion; O/{W:hJjd
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publicvoid setCacheQueries(boolean *h Bo,
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cacheQueries){ xx
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this.cacheQueries = cacheQueries; 5:x .<
} #7dM %
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publicvoid setQueryCacheRegion(String /u N3"m5i
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queryCacheRegion){ R WK##VHK
this.queryCacheRegion = Dwi[aC+k
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queryCacheRegion; n$YCIW)0
} @V5'+^O
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publicvoid save(finalObject entity){ ^bckl
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getHibernateTemplate().save(entity); pgU4>tyD
} 9KLhAYaq
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publicvoid persist(finalObject entity){ bcy(
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getHibernateTemplate().save(entity); C@q&0\HN
} Mb[4G>-v=
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publicvoid update(finalObject entity){ yi9c+w)b
getHibernateTemplate().update(entity); H=k`7YN
} $[-{Mm
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publicvoid delete(finalObject entity){ ^_^rI+cTX1
getHibernateTemplate().delete(entity); "yV)&4)
} $N`uM
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publicObject load(finalClass entity, 9,;+B8-A
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finalSerializable id){ ~*Ir\wE
return getHibernateTemplate().load .`Ts'0vVy
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(entity, id); q;a#?Du o
} DUK.-|a7
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publicObject get(finalClass entity, vXi}B
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finalSerializable id){ 3`aJ"qQE
return getHibernateTemplate().get tHo0q<.oX
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(entity, id); ,Uv8[ci%9
} xuDn:
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publicList findAll(finalClass entity){ YJ{d\j
return getHibernateTemplate().find("from 1yIo'i1
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" + entity.getName()); L5*,l`lET
} 8E!I9z
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publicList findByNamedQuery(finalString ,`JXBI~
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namedQuery){ "@[xo7T
return getHibernateTemplate ;ckv$S[p
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().findByNamedQuery(namedQuery); XU#nqvS` .
} ^(0tNX/XD
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publicList findByNamedQuery(finalString query, Z0 e+CEzq
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finalObject parameter){ /fM6%V=Y
return getHibernateTemplate &sx|sLw)
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().findByNamedQuery(query, parameter); q61
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} )>LC*_v
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publicList findByNamedQuery(finalString query, #dGg !D
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finalObject[] parameters){ r} ~l(
return getHibernateTemplate dkQA[/k
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().findByNamedQuery(query, parameters); BVC{Zq6hi
} Fq5);sX=
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publicList find(finalString query){ B|O/h!H.
return getHibernateTemplate().find b+M[DwPw
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(query); 6zLz<p?
} CW=-@W7
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publicList find(finalString query, finalObject ?mt$c6-
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parameter){ B!le=V,@,
return getHibernateTemplate().find =P+S]<O
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(query, parameter); #1zWzt|DW
} _+8$=k2nM
}#
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public PaginationSupport findPageByCriteria J 6S
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(final DetachedCriteria detachedCriteria){ <