Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 &m@~R|
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 35/)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 ~V,~'W
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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|19ia@[\
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分页支持类: V-Ebi^gz5W
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java代码: 6|q\ M
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package com.javaeye.common.util; {Vy2uow0
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import java.util.List; 2, bo
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publicclass PaginationSupport { !?t#QDo
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publicfinalstaticint PAGESIZE = 30; >l|ao&z>bm
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privateint pageSize = PAGESIZE; `?Wy;5-
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privateList items; KjK.Sv{N
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privateint totalCount; m0XdIC]s
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privateint[] indexes = newint[0]; k+8K[?K-
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privateint startIndex = 0; xO2e>[W
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public PaginationSupport(List items, int #=~n>qn]
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totalCount){ =pQ'wx|>|
setPageSize(PAGESIZE); Uy8r
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setTotalCount(totalCount); {FV_APL9_
setItems(items); Ja$Ple*XU8
setStartIndex(0); &j4 1<A
} ]xhZJ~"@u
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public PaginationSupport(List items, int y7)s0g>%H
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totalCount, int startIndex){ ivy+e-)
setPageSize(PAGESIZE); s zgq7
setTotalCount(totalCount); s d-5AE
setItems(items); ["N{6d&Q
setStartIndex(startIndex); K5;
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} {(o$? =
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public PaginationSupport(List items, int 4~;x(e@S
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totalCount, int pageSize, int startIndex){ :el]IH
setPageSize(pageSize); +k@$C,A
setTotalCount(totalCount); Q>`|{m
setItems(items); 9
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setStartIndex(startIndex); ``l7|b jJ
} $+#Lq.3,
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publicList getItems(){
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return items; zq(R !a6
} Q&p'\6~
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publicvoid setItems(List items){ r!DUsE
this.items = items; VK7lm|J+
} 3v oas
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publicint getPageSize(){ J<[Hw g
return pageSize; y'gIx*6B@
} xMck A<E
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publicvoid setPageSize(int pageSize){ DB1F_! 9
this.pageSize = pageSize; 37j-FLbW
} C_c*21X
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publicint getTotalCount(){ Ygwej2
return totalCount; <$#;J>{WV
} (%`R{Y
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publicvoid setTotalCount(int totalCount){ Ebmd[A&&
if(totalCount > 0){ (QARle(i
this.totalCount = totalCount; $j ZU(<4,
int count = totalCount / <{
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pageSize; cr;\;Ta_!W
if(totalCount % pageSize > 0) xPuuG{Sm
count++; ]{mz %\
indexes = newint[count]; !F@9xG
for(int i = 0; i < count; i++){ 5e> <i
indexes = pageSize * mW_B|dM"
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} -F&4<\=+
}else{ 1 uKWvp0\
this.totalCount = 0; o;d><
} #!a}ZhIt
} fu}ZOPu
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publicint[] getIndexes(){ p3sR>ToJ
return indexes; 6xFvu7L_c;
} ?8{x/y:
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publicvoid setIndexes(int[] indexes){ %T OYU(k
this.indexes = indexes; $-tgd<2h
} y'5
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publicint getStartIndex(){ $)V_oQSqn
return startIndex; (T0%oina
} _[eAA4h
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publicvoid setStartIndex(int startIndex){ ,-55*Rb i
if(totalCount <= 0) !|SVRaS
this.startIndex = 0; nhbCk6Y5LZ
elseif(startIndex >= totalCount) WyO7,Qr\
this.startIndex = indexes a{oG[e
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[indexes.length - 1]; @U~i<kt
elseif(startIndex < 0) Wr3).m52}P
this.startIndex = 0; >= G{.H
else{ Zx%ib8|j
this.startIndex = indexes $i:wS=
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[startIndex / pageSize]; -F7GUB6B
} WAzYnl'p
} =.*+c\
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publicint getNextIndex(){ mBp3_E.t
int nextIndex = getStartIndex() + PNjZbOmzS
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pageSize; J.R|Xd
if(nextIndex >= totalCount) "s:eH"_s
return getStartIndex(); e@Cv')]B
else o~
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return nextIndex; Jp'XZ]o\
} +Wr"c
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publicint getPreviousIndex(){ ^rHG#^hA
int previousIndex = getStartIndex() - `|{6U"n
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pageSize; 3G4N0{i
if(previousIndex < 0) -uE2h[X|
return0; ??4#)n
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else LjE@[@d
return previousIndex; U\crp
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} aJQx"6c?
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} ~+JEl%
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抽象业务类 s,tZi6Z=%E
java代码: ] bPj%sb*@
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/** R')D~JJ<8a
* Created on 2005-7-12 O%w"bEr)N
*/ b1("(,r/`
package com.javaeye.common.business; <c,/+
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import java.io.Serializable; ( %i)A$i6a
import java.util.List; c
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import org.hibernate.Criteria; 5|4=uoA<
import org.hibernate.HibernateException; stb)Tl^
import org.hibernate.Session; -{ae
import org.hibernate.criterion.DetachedCriteria; aMUy^>
import org.hibernate.criterion.Projections; 8 |@WuD
import %lr<;
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org.springframework.orm.hibernate3.HibernateCallback; I6k S1
import lbRm(W(
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org.springframework.orm.hibernate3.support.HibernateDaoS `u. /2]n
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upport; 9PU9BYBG
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import com.javaeye.common.util.PaginationSupport; v7V.,^6+
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public abstract class AbstractManager extends /~4wM#Yi8
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HibernateDaoSupport { R5y+bMZ
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privateboolean cacheQueries = false; GN7\p)
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privateString queryCacheRegion; ^/)!)=?
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publicvoid setCacheQueries(boolean !7m
) QNV
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cacheQueries){ K2W$I H:.
this.cacheQueries = cacheQueries; =:|fN3nJ2
} !hBzT7CO
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publicvoid setQueryCacheRegion(String ;}=4z^^5
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queryCacheRegion){ C< :F<[H
this.queryCacheRegion = RWN2P6
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queryCacheRegion; 6{XdLI
} l~Em2@c
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publicvoid save(finalObject entity){ ,%|$#
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getHibernateTemplate().save(entity); r N"P
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} L$ nFRl&
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publicvoid persist(finalObject entity){ l&