Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 z%D7x5!,R
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 l{[@Ahb}?
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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 O-(V`BZe
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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 QOB^U-cW
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分页支持类: OS z71;j
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java代码: uV5uZ
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package com.javaeye.common.util; *BsK6iVb
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import java.util.List; q^aDZzx,z
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publicclass PaginationSupport { |[.-pA^
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publicfinalstaticint PAGESIZE = 30; 3k1e
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privateint pageSize = PAGESIZE; '`2KLO>!
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privateList items; jri"# H
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privateint totalCount; tAv3+
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privateint[] indexes = newint[0]; QC+
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privateint startIndex = 0; ,CqWm9
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public PaginationSupport(List items, int [M\ an6h6O
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totalCount){ t7]j6>MK3q
setPageSize(PAGESIZE); F rckA
setTotalCount(totalCount); & P-8_I
setItems(items); *JJ8\R&P0
setStartIndex(0); 8US#SI'x
} iHPsRq!
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public PaginationSupport(List items, int ^\}qq>_
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totalCount, int startIndex){ VVeJe"!t
setPageSize(PAGESIZE); uPfz'|,
setTotalCount(totalCount); ZO<,V
setItems(items); `DYhGk
setStartIndex(startIndex); FOk&z!xYKd
} p":u]Xgb
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public PaginationSupport(List items, int z=>fBb>w7
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totalCount, int pageSize, int startIndex){ !UoA6C:
setPageSize(pageSize); nm5DNpHk
setTotalCount(totalCount); ;I4vPh5Q
setItems(items); e8vy29\S
setStartIndex(startIndex); KuP#i]Na
} g#$ C8k
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publicList getItems(){ ^C'S-2nGH
return items; KqGb+N-@
} ~[Tcl
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publicvoid setItems(List items){ On*I.~
this.items = items; ga
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} ]d1'5F][H
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publicint getPageSize(){ y RxrfAdS
return pageSize; jSp&\Wj b
} Qf~>5(,h
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publicvoid setPageSize(int pageSize){ uMQI Aapb
this.pageSize = pageSize; e4z~
} D>5)',D8xi
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publicint getTotalCount(){ ia5%
return totalCount; vqeH<$WHvy
} *p(_="J,
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publicvoid setTotalCount(int totalCount){ c]M+|R5
if(totalCount > 0){ cpOt?XYR~
this.totalCount = totalCount; hL3up] pZ
int count = totalCount / X~r9yl>
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pageSize;
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if(totalCount % pageSize > 0) x {NBhq(4
count++; GJ%^hr`P
indexes = newint[count]; 0Q{lyu
for(int i = 0; i < count; i++){ }h^
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indexes = pageSize * 1K9.3n
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} jF?0,g
}else{ \*t\=4
this.totalCount = 0; DSLX/uo1
} 5sJ>+Rg
} )h]+cGM
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publicint[] getIndexes(){ <W0(!<U
return indexes; ??/bI~Sd
} zx$YNjeV
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publicvoid setIndexes(int[] indexes){ 6:2* <
this.indexes = indexes; "pO
} ]'pfw9"f~
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publicint getStartIndex(){ Tr?p/9.m
return startIndex; g4^-B
} R[m-jUL
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publicvoid setStartIndex(int startIndex){ Pl B3"{}0Q
if(totalCount <= 0) *O$|,EsY
this.startIndex = 0; A"7YkOfwH
elseif(startIndex >= totalCount) WR #XPbk
this.startIndex = indexes lR %#R
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[indexes.length - 1]; Ar>B_*dr
elseif(startIndex < 0) )|=1;L
this.startIndex = 0; V(TtOuv
else{ I">">
this.startIndex = indexes .!4'Y}
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[startIndex / pageSize]; +<\LY(o
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} +'m9b7+v
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publicint getNextIndex(){ ->I.D?p
int nextIndex = getStartIndex() + V=ll 9M
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pageSize; ^KbR@Ah
if(nextIndex >= totalCount) Vs"b
return getStartIndex(); P.YT/
else 5mAb9F8@
return nextIndex; +k6`
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} C
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publicint getPreviousIndex(){ $'\kK,=
int previousIndex = getStartIndex() - 3rRIrrYO
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pageSize; uRy}HLZ"
if(previousIndex < 0) G+=Gc(J
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else _gVihu
return previousIndex; ;.jj>1=Tnl
} R_j.k3r4d
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抽象业务类 ;I5P<7VW
java代码: -+){ ;,
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/** NzZ(Nz5
* Created on 2005-7-12 p{oz}}
*/ pq0Z<b;2
package com.javaeye.common.business; .+>fD0fW7Y
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import java.io.Serializable; GpPM ?
import java.util.List; i?B<&'G
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import org.hibernate.Criteria; 7s%D(;W_Mo
import org.hibernate.HibernateException; 3z0Bg
import org.hibernate.Session; \2u7>fU!
import org.hibernate.criterion.DetachedCriteria; KF&8l/f
import org.hibernate.criterion.Projections; 9(fh+
import \r aP
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org.springframework.orm.hibernate3.HibernateCallback; G>pedE\
import 5!ngM
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org.springframework.orm.hibernate3.support.HibernateDaoS f IV"U
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upport; uNy-r`vg
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import com.javaeye.common.util.PaginationSupport; JRBz/ j
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public abstract class AbstractManager extends JAHmmNlW
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HibernateDaoSupport { Dz hLb8k
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privateboolean cacheQueries = false; 9V)cf
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privateString queryCacheRegion; %o9mG<.T
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publicvoid setCacheQueries(boolean
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cacheQueries){ HpbwW=;V
this.cacheQueries = cacheQueries; TS#1+f]9J<
} =_&,^h@'3e
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publicvoid setQueryCacheRegion(String x=0Ak'1M
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queryCacheRegion){ k4&adX@Y
this.queryCacheRegion = lYe2;bu
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queryCacheRegion; yq, qS0Fo
} <.g)?nj1
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publicvoid save(finalObject entity){ DaH4 Br.2
getHibernateTemplate().save(entity); :M;|0w*b
} MuO(%.H
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publicvoid persist(finalObject entity){ >WO;q
getHibernateTemplate().save(entity); y-@`3hYM@
} }#Up:o]A!
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publicvoid update(finalObject entity){ yo5-x"ze
getHibernateTemplate().update(entity); /p;OZf]
} 4Tuh]5
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publicvoid delete(finalObject entity){ 'n{=`e(}cI
getHibernateTemplate().delete(entity); (xfy?N
} 3I'7+?@@l
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publicObject load(finalClass entity, xz:
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finalSerializable id){ |1kA6/
return getHibernateTemplate().load hRKJKQ@7
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(entity, id); _7v4S/V
} R(>
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publicObject get(finalClass entity, ixy:S1pI
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finalSerializable id){ ,*Wh{)
return getHibernateTemplate().get m k~F@
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(entity, id); Lz9|"F"V
} iMM9a;G+
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publicList findAll(finalClass entity){ ?/3{gOgI$`
return getHibernateTemplate().find("from </9c=GoJ
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" + entity.getName()); (eT9N_W
} 5!i\S[:
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publicList findByNamedQuery(finalString {JQV~rfh`
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namedQuery){ "V:RKH`
return getHibernateTemplate /.mx\_$
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().findByNamedQuery(namedQuery); N#OO{`":Z`
} $W;r S7b
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publicList findByNamedQuery(finalString query, |em_l$oGc
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finalObject parameter){ Nc EPPl0I
return getHibernateTemplate zcV~)go6
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().findByNamedQuery(query, parameter); EwfL.z
} w$qdV,s 7
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publicList findByNamedQuery(finalString query, [*vR&