Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ;Hj~n+
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 sH?/E6
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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 >B2q+tA
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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 d\FJFMW*9
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分页支持类: M>>qn_yq4
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java代码: Jte#ZnP
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package com.javaeye.common.util; zA!0l*H
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import java.util.List; ]<q[Do8k
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publicclass PaginationSupport { *L'>U[Pl7
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publicfinalstaticint PAGESIZE = 30; NU*fg`w
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privateint pageSize = PAGESIZE; \;mH(-
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privateList items; Kbb78S30
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privateint totalCount; e4z1`YLsG
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privateint[] indexes = newint[0]; k!KDWb
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privateint startIndex = 0; pKjoi{
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public PaginationSupport(List items, int p IKSs<IP
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totalCount){ 3t0[^cY8=z
setPageSize(PAGESIZE); en:4H
setTotalCount(totalCount); zBP>jM(8
setItems(items); yin'vgQ
setStartIndex(0); ?l $Nf@-
} 7zv1wb
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public PaginationSupport(List items, int PGARXw+
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totalCount, int startIndex){ Kmdlf,[3d
setPageSize(PAGESIZE); WMBm6?54
setTotalCount(totalCount); cn-
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setItems(items); (
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setStartIndex(startIndex); =Mb1o[
} TcGoSj<Z
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public PaginationSupport(List items, int 2*w:tT8+X
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totalCount, int pageSize, int startIndex){
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setPageSize(pageSize); &k1T08C*
setTotalCount(totalCount); R3!@?mcr
setItems(items); Cua%1]"4w
setStartIndex(startIndex); e[Jem5C
} E3*\
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publicList getItems(){ XJ0oS32_wK
return items; 2]c{P\
} =SAU4xjo
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publicvoid setItems(List items){ V`-vR2(
this.items = items; n?:=
} zA;@@)hwR
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publicint getPageSize(){ N|Sf=q?Ko
return pageSize; I
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} k3t78Qg
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publicvoid setPageSize(int pageSize){ eJo3 MK
this.pageSize = pageSize; SgEBh
} tL+OCLF;
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publicint getTotalCount(){ wO>L#"X^v
return totalCount; :SsUdIX;P
} (?*BB3b`
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publicvoid setTotalCount(int totalCount){ i#%a- I:M
if(totalCount > 0){ "z*:'8;E
this.totalCount = totalCount; ?~QIALA
int count = totalCount / U5]pi+r
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pageSize; )*5G">) )p
if(totalCount % pageSize > 0) i0s6aAhgJ
count++; zj|/ CxV
indexes = newint[count]; TbehR:B5g
for(int i = 0; i < count; i++){ )!Bd6-
indexes = pageSize * D5an\gE
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} ((rv]f{
}else{ A`u$A9[
this.totalCount = 0; '?Jxt:<
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} (#oycj^<
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publicint[] getIndexes(){ a0*2) uL}
return indexes; 8:.nEo'
} e2C<PGUUB
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publicvoid setIndexes(int[] indexes){ T|"7sPgGR
this.indexes = indexes; ?'r9"M>
} hGf-q?7
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publicint getStartIndex(){ pX=,iOF[I
return startIndex; Y?#i{ixX6n
} [ "xn5lE
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publicvoid setStartIndex(int startIndex){ ]=!P(z|
if(totalCount <= 0) k?VQi5M
this.startIndex = 0; V5D`eX9
elseif(startIndex >= totalCount) LjdYsai-
this.startIndex = indexes kHJ96G
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[indexes.length - 1]; *wV[TKaN
elseif(startIndex < 0) )nu~9km3
this.startIndex = 0; `Vq`z]}
else{ LihjGkj\g
this.startIndex = indexes (H?ZSeWx
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[startIndex / pageSize]; gNx+>h`AF
} uvA(Rn
} _B,_4}
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publicint getNextIndex(){ eu'1H@vX(
int nextIndex = getStartIndex() + Bfd-:`Jk
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pageSize; Z v0C@r
if(nextIndex >= totalCount) x"(9II*
return getStartIndex(); (P==VZQg
else 1'G8o=~
return nextIndex; %q_Miu@
} !6w{(Rc(C
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publicint getPreviousIndex(){ MjaUdfx
int previousIndex = getStartIndex() - D*vm
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pageSize; CQODXB^
if(previousIndex < 0) ;TZGC).6
return0; `dJDucD
else V)D-pV V
return previousIndex; Poa?Ej
}
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抽象业务类 zL s^,x
java代码: j.3o W
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/** #1$}S=8*f
* Created on 2005-7-12 "uu)2Xe
*/ 6kvV
package com.javaeye.common.business; X9~m8c){z
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import java.io.Serializable; \Kd7dK9&]
import java.util.List; ~"ONAX
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import org.hibernate.Criteria; t ,qul4y}
import org.hibernate.HibernateException; nR8]@c C
import org.hibernate.Session; LD+f'^>>Z
import org.hibernate.criterion.DetachedCriteria; gZ(O)uzv
import org.hibernate.criterion.Projections; '=} Y2?(
import .R5/8VuHF
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org.springframework.orm.hibernate3.HibernateCallback; lVeH+"M?
import yBz>0I3
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org.springframework.orm.hibernate3.support.HibernateDaoS J(d2:V{h
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upport; +Z?[M1g
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import com.javaeye.common.util.PaginationSupport; 7;HUE!5,^l
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public abstract class AbstractManager extends N4 [E~-
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HibernateDaoSupport { R'EW7}&
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privateboolean cacheQueries = false; L? ;/cO^
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privateString queryCacheRegion; -
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publicvoid setCacheQueries(boolean \7E`QY4
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cacheQueries){ X}apxSd"
this.cacheQueries = cacheQueries;
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publicvoid setQueryCacheRegion(String ez0 \bym
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queryCacheRegion){ rh $1-Y
this.queryCacheRegion = 6=>7M
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queryCacheRegion; ?"@ET9
} }%{=].)L
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publicvoid save(finalObject entity){ vug-n 8
getHibernateTemplate().save(entity); ~yN(-I1P
} ChIoR:y>
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publicvoid persist(finalObject entity){ Za\RM[Z!I
getHibernateTemplate().save(entity); silp<13HN
} 5c~'!: 7
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publicvoid update(finalObject entity){ v,\93mNp[
getHibernateTemplate().update(entity); SY6r 8RK
} J%4HNW*p
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publicvoid delete(finalObject entity){ /s-d?
getHibernateTemplate().delete(entity); luF#OP C
} OQ|,-
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publicObject load(finalClass entity, =[(%n94
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finalSerializable id){ n49s3|#)G
return getHibernateTemplate().load >PH< N
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(entity, id); ork|yj/A
} ZPYH#gC&T
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publicObject get(finalClass entity, Ge9}8
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finalSerializable id){ LO>8 j:
return getHibernateTemplate().get !>|`ly$6
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(entity, id); 3qcpf:
} q+J0}y{#8)
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publicList findAll(finalClass entity){ 'X ~Ab
return getHibernateTemplate().find("from 2e\Kw+(>{
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" + entity.getName()); 7X:hIl
} ,A?v,Fs>O[
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publicList findByNamedQuery(finalString d:3= 1x
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