Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 8a"%0d#
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 Q=dy<kg']
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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 8Cv?Z.x5
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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 e@YK@?^#N
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分页支持类: 3irl
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java代码: H" 7u7l
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package com.javaeye.common.util; Oa>Ppldeg
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import java.util.List; 1m0c|ckb
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publicclass PaginationSupport { dUdT7ixo
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publicfinalstaticint PAGESIZE = 30; zp?`N;
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privateint pageSize = PAGESIZE; @`Su0W+.
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privateList items; Y\'}a+:@Ph
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privateint totalCount; 7E!5G2XX~~
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privateint[] indexes = newint[0]; "5$B>S(Q
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privateint startIndex = 0; eb$#A _m
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public PaginationSupport(List items, int 1[-tD0{H
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totalCount){ jmW7)jT8:
setPageSize(PAGESIZE); n'6jou
setTotalCount(totalCount); y1L,0 ]
setItems(items); 7"D.L-H
setStartIndex(0); )@bQu~Y
} C$)onk
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public PaginationSupport(List items, int x'R`.
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totalCount, int startIndex){ 9(wK@
setPageSize(PAGESIZE); Wo=jskBrQ
setTotalCount(totalCount); 0#^v{DC
setItems(items); <1M-Ro?5k
setStartIndex(startIndex); ;t`&n['N>
} z*)T%p
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public PaginationSupport(List items, int X!g#T9kG
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totalCount, int pageSize, int startIndex){ 7. ;3e@s
setPageSize(pageSize); ,$&&-p I]
setTotalCount(totalCount); )w%!{hn
setItems(items); R*r#E{!V;
setStartIndex(startIndex); 8}| (0mC
} r]36zX v
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publicList getItems(){ v/=}B(TDF
return items; JqiP>4Uwm^
} jo@J}`\Zt
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publicvoid setItems(List items){ q> C'BIr
this.items = items; V3j= Kf
} *c+ (-
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publicint getPageSize(){ h 9W^[6
return pageSize; /&94 eC
} ,zY$8y]
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publicvoid setPageSize(int pageSize){ #>+ HlT
this.pageSize = pageSize; Y:a]00&)#Y
} H7:] ]j1
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publicint getTotalCount(){ pyvSwD5t
return totalCount; HyWCMK6b
} ?6Y?a2 |
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publicvoid setTotalCount(int totalCount){ \)|hogI|f
if(totalCount > 0){ !C:$?oU
this.totalCount = totalCount; M =r)I~
int count = totalCount / c!9nnTap
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pageSize; gB'6`'
if(totalCount % pageSize > 0) ~/P[J
count++; XOS[No~
indexes = newint[count]; ~Jz6O U*z
for(int i = 0; i < count; i++){ uW36;3[f#1
indexes = pageSize * /t"3!Z?BOv
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} @I!0-OjL
}else{ LSr]S79N1
this.totalCount = 0; ,01"SWE
} ?.;c$'
} 3'u-'
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publicint[] getIndexes(){ 0KOgw*>_
return indexes; /s}}&u/
} G<v&4/\p`M
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publicvoid setIndexes(int[] indexes){ ,nDaqQ-C!!
this.indexes = indexes; "1M[5\Ax
} B_m8{44zM
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publicint getStartIndex(){ @6T/Tdz
return startIndex; ikiypWq
} >V}#[ /n
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publicvoid setStartIndex(int startIndex){ :G%61x&=Zc
if(totalCount <= 0) wDe& 1(T^
this.startIndex = 0; A2jUmK.&
elseif(startIndex >= totalCount) q5)O%l !
this.startIndex = indexes fmDCP kj
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[indexes.length - 1]; 81
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elseif(startIndex < 0) @t_=Yl2;
this.startIndex = 0; 'AH0ww_)n
else{ DN5 7p!z
this.startIndex = indexes o:Sa,
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[startIndex / pageSize]; HRfYl,S,
} wEvVL
} ?+}_1x`
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publicint getNextIndex(){ ,wAF:7'
int nextIndex = getStartIndex() + :^B1~p(?sK
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pageSize; 6G""I]uT
if(nextIndex >= totalCount) o]I\6,T/|
return getStartIndex(); 5taT5?n2
else {[?(9u7R
return nextIndex; 1NA.nw.
} J]pir4&j
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publicint getPreviousIndex(){ i6Emhji
int previousIndex = getStartIndex() - CdjI`
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pageSize; C1 GKLl~
if(previousIndex < 0) cB}D^O
return0; Vb]=B~ ^`
else x)O!["'"
return previousIndex; 57']#j#"hj
} ;,:`1UI
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} z/@slT
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抽象业务类 >V8-i`
java代码: 9 X`Sm}i
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/** )W
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* Created on 2005-7-12 3K0A)W/YEs
*/ OU
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package com.javaeye.common.business; dn$!&
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import java.io.Serializable; PmEsN&YP]
import java.util.List; 3eAX.z`D
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import org.hibernate.Criteria; mLLDE;7|}
import org.hibernate.HibernateException; ]:k/Y$O2
import org.hibernate.Session; C7ScS"~
import org.hibernate.criterion.DetachedCriteria; HJ[c M6$2
import org.hibernate.criterion.Projections; uo%)1NS!
import rlSeu5X6
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org.springframework.orm.hibernate3.HibernateCallback; YHygo#4=8
import wIaony
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org.springframework.orm.hibernate3.support.HibernateDaoS h_,i&d@(
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upport; q\4Xs$APq
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import com.javaeye.common.util.PaginationSupport; +.b,AqJ/
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public abstract class AbstractManager extends H;k~oIsk
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HibernateDaoSupport { 2E)-M9ds
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privateboolean cacheQueries = false; T<Z &kYU:R
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privateString queryCacheRegion; ! Y~FLA_
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publicvoid setCacheQueries(boolean `MN4uC
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cacheQueries){ CXx*_@}MU
this.cacheQueries = cacheQueries; $AjHbU.I{
} Ed df2;-.
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publicvoid setQueryCacheRegion(String <7Or{:Sc90
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queryCacheRegion){ k&vz7Q`T
this.queryCacheRegion = u5b|#&-mX
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queryCacheRegion; W ]?G}Q;
} X Dm[Gc>(~
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publicvoid save(finalObject entity){ m6\E$;`
getHibernateTemplate().save(entity); ~#[yJNYQ
} .K2qXw"S#
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publicvoid persist(finalObject entity){
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getHibernateTemplate().save(entity); !v_|zoCEj
} Ru!iR#s)!
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publicvoid update(finalObject entity){ eFTpnG
getHibernateTemplate().update(entity); g<;q.ZylT
} J~zUp(>K
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publicvoid delete(finalObject entity){ ;dtA4:IRZ4
getHibernateTemplate().delete(entity); %XoiVlT@:
} {{D)YldtA
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publicObject load(finalClass entity, mt+Oi70
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finalSerializable id){ U}e!Wjrc
return getHibernateTemplate().load PI:4m%[
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(entity, id); CR`Q#Yi
} RYQR(v
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publicObject get(finalClass entity, 5z8d}
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finalSerializable id){ TA`1U;c{n
return getHibernateTemplate().get ~"&|W'he[
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(entity, id); WwBOM~/`2
} ;!mzyb*
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publicList findAll(finalClass entity){ qYjce]c
return getHibernateTemplate().find("from 2W96Zju\
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" + entity.getName()); JPc+rfF
} $%CF8\0
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publicList findByNamedQuery(finalString rq/yD,I,
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namedQuery){ ;4^Rx
return getHibernateTemplate fF$<7O)+]
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().findByNamedQuery(namedQuery); RXpw!
} :Ij{s
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publicList findByNamedQuery(finalString query, tqvN0vY5
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finalObject parameter){ {W=%U|f
return getHibernateTemplate t7dt*D_YqK
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().findByNamedQuery(query, parameter); .9 on@S
} z0p*Z&
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publicList findByNamedQuery(finalString query, F3v!AvA|
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finalObject[] parameters){ -aPg#ub
return getHibernateTemplate ?Wr+Q
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