Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 IetV ]Ff6
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 :)e/(I]
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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 @iz6)2z
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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 x(zW<J5X"
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分页支持类: T /7[hj
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java代码: 2LN5}[12]
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package com.javaeye.common.util; ;UjP0z
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import java.util.List; 5.)/gK2$
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publicclass PaginationSupport { Z Q9's
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publicfinalstaticint PAGESIZE = 30; Boa?Ghg
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privateint pageSize = PAGESIZE; *r3u=oWb
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privateList items; K[|d7e
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privateint totalCount; M8lR#2n|
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privateint[] indexes = newint[0]; zPoIs@
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privateint startIndex = 0; xZ"kJ'C4}
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public PaginationSupport(List items, int 4fzM%ku
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totalCount){ E~!FEl;
setPageSize(PAGESIZE); K>$od^f%c
setTotalCount(totalCount); `Tf<w+H
setItems(items); D&)gcO`\
setStartIndex(0); ^coJ"[D
} iNs
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public PaginationSupport(List items, int 7"
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totalCount, int startIndex){ Vi>kK|\b
setPageSize(PAGESIZE); @{n2R3)k
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setTotalCount(totalCount); cYTX)]^u
setItems(items); ]HP
setStartIndex(startIndex); e{9(9qE"
} Ad7=JzV
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public PaginationSupport(List items, int QSy #k~
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totalCount, int pageSize, int startIndex){ !$5U\"M
setPageSize(pageSize); Zt[1RMO
setTotalCount(totalCount); @le23+q
setItems(items); R=M${u<t
setStartIndex(startIndex); yz2NB?)
} Wc_Ph40C<_
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publicList getItems(){ F3a"SKMW
return items; [w)6OT
} 7<?v!vQ}-
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publicvoid setItems(List items){ jKu"Vi|j>
this.items = items; A|@d4+
} 2S8/
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publicint getPageSize(){ A!
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return pageSize; }g _#.>D+
} SR S~s
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publicvoid setPageSize(int pageSize){ 6q8qq/h)
this.pageSize = pageSize; { l LUZM
} ^f1}:g
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publicint getTotalCount(){ Oox5${#^
return totalCount; !/$BXUrd
} 5,qfr!hN,
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publicvoid setTotalCount(int totalCount){ X;p,Wq#D'
if(totalCount > 0){ 4//Ww6W:
this.totalCount = totalCount; s 4}}MV3X
int count = totalCount / I)O-i_}L&K
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pageSize; ]0dp^%
if(totalCount % pageSize > 0) Rm *"SG
count++; `h
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indexes = newint[count]; U]ouBG8/
for(int i = 0; i < count; i++){ +Mv0X%(N
indexes = pageSize * -]PW\}w1
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} G(4:yK0
}else{ G#CWl),=
this.totalCount = 0; t L;;Yt
} 7IZ(3B<87t
} q^dI!93n|
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publicint[] getIndexes(){ 12E@9s$Z
return indexes; +2W#=G
} 8'#%7+ "=!
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publicvoid setIndexes(int[] indexes){ Tj*zlb4
this.indexes = indexes; -D.6@@%Kc}
} JT<Ia
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publicint getStartIndex(){ ;Fuxj!gF
return startIndex; "v~w#\pz7
} E<&VK*{zcO
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publicvoid setStartIndex(int startIndex){ @eT!v{o
if(totalCount <= 0) x%x:gkq
this.startIndex = 0; hlkf|H
elseif(startIndex >= totalCount) E9226
this.startIndex = indexes .Fh5:WN
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[indexes.length - 1]; sOLo[5y'
elseif(startIndex < 0) F/RV{} 17E
this.startIndex = 0; }(TZ}* d
else{ o&LNtl;
this.startIndex = indexes -F|(Y1OE
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[startIndex / pageSize]; ^O[qCX
} ^X0<ZI
} l=
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publicint getNextIndex(){ S]{K^Q),
int nextIndex = getStartIndex() + 18ci-W#p
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pageSize; GXRK+RHuBi
if(nextIndex >= totalCount) AytHnp\H
return getStartIndex(); 6eK18*j%H
else Fv5@-&y$W
return nextIndex; XF{}St~ (
} 31YzTbl[H
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publicint getPreviousIndex(){ U4zyhj
int previousIndex = getStartIndex() - T92k"fBY
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pageSize; D,1S-<
if(previousIndex < 0) uj;-HN)6
return0; <tgJ-rnL
else [al$7R&
return previousIndex; 4(
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} ,n~H]66n
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} /_woCLwQ#
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抽象业务类 ?OvtR:h C
java代码: X )g<F
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/** hMeE@Q0
* Created on 2005-7-12 0P\)L`cG
*/ {o5E#<)
package com.javaeye.common.business; Ck(D:
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import java.io.Serializable; E@P8-x'i
import java.util.List; "i4@'`r
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import org.hibernate.Criteria; F
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import org.hibernate.HibernateException; e [3sWv
import org.hibernate.Session; x@Z?DS$)
import org.hibernate.criterion.DetachedCriteria; =f{V<i~q
import org.hibernate.criterion.Projections; f(7/
import !}Cd_tj6
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org.springframework.orm.hibernate3.HibernateCallback; ~0t]`<y=
import tX&Dum $
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org.springframework.orm.hibernate3.support.HibernateDaoS +;pdG[N
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upport; x:"_B
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import com.javaeye.common.util.PaginationSupport; VGA?B@
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public abstract class AbstractManager extends ^cDHyB=v4d
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HibernateDaoSupport { wp-*S}TT
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privateboolean cacheQueries = false; -`FTWH
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privateString queryCacheRegion; \ d+&&ns
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publicvoid setCacheQueries(boolean M8:gHjwsx
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cacheQueries){ 70mQ{YNN
this.cacheQueries = cacheQueries; B@=+Fg DD
} VLA9&.*@
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publicvoid setQueryCacheRegion(String g
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queryCacheRegion){ ,57g_z]V
this.queryCacheRegion = D#1'#di*t
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queryCacheRegion; /Rb`^n#
} DL_2%&k/
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publicvoid save(finalObject entity){ | ?~-k[|
getHibernateTemplate().save(entity); |Ah26<&