Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ef^Cc)S-Q
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 W{L
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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 Z={D0`
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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 >~.Zr3P6kC
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分页支持类: 0>I]=M]@
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java代码: [0d-CEp[
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package com.javaeye.common.util; l7!U),x%/U
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import java.util.List; XKpL4]{&q4
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publicclass PaginationSupport { )RpqZe/h4
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publicfinalstaticint PAGESIZE = 30; v@F|O8t:s
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privateint pageSize = PAGESIZE; Jsl k
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privateList items; E`A<]dAoK
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privateint totalCount; ;"d?_{>7
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privateint[] indexes = newint[0]; ~ >&I^4
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privateint startIndex = 0; </K%i;l
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public PaginationSupport(List items, int a7XXhsZ
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totalCount){ /%N31
setPageSize(PAGESIZE); ws*~$x?7
setTotalCount(totalCount); L?Kz
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setItems(items); xn%l
setStartIndex(0); r78u=r
} }:,o Y<
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public PaginationSupport(List items, int
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totalCount, int startIndex){ yYxeNE"
setPageSize(PAGESIZE); 5`1(}
setTotalCount(totalCount); */0vJz%<.M
setItems(items); Verbmeg&n
setStartIndex(startIndex); _A@fP[C
} zhVa.r A
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public PaginationSupport(List items, int `<l/GwtAJ
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totalCount, int pageSize, int startIndex){ PfwI@%2
setPageSize(pageSize); FgFJ0fo
setTotalCount(totalCount); &=+cov(3
setItems(items); ]Ssw32yn
setStartIndex(startIndex); VJ~X#Q
} k"Z"$V2i
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publicList getItems(){ ::3iXk)
return items; Q:-%3)g<<
} Dz"u8 f
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publicvoid setItems(List items){ yV 9]_k
this.items = items; Z@>=&
} 7- *(a
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publicint getPageSize(){ ~$?y1Yv
return pageSize; []2$rJZD9
} 7/p J6>
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publicvoid setPageSize(int pageSize){ F_p3:l
this.pageSize = pageSize; [9db=$v8$
} gL[1wM%?
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publicint getTotalCount(){ Ef,7zKG
return totalCount; ,w9#%=xE
} o+"0. B
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publicvoid setTotalCount(int totalCount){ S|RpA'n
if(totalCount > 0){ A4 A6F<
this.totalCount = totalCount; ] dm1Qm
int count = totalCount / EMVoTW)z
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pageSize; > hDsm;,/
if(totalCount % pageSize > 0) K#JabT
count++; &*>CPO
indexes = newint[count]; dIBKE0`
for(int i = 0; i < count; i++){ jE?\Yv3
indexes = pageSize * *x*,I,03
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} /A[oj2un
}else{ *D09P%
this.totalCount = 0; !ho5VAt
} |&0"N[t
} .%J?T5D
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publicint[] getIndexes(){ T~wZ
return indexes; (A] m=
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publicvoid setIndexes(int[] indexes){ Wd^F%)(
this.indexes = indexes; YjX!q]56
} ; $ ?jR
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publicint getStartIndex(){ !UgUXN*
return startIndex; U&]p!DV&;
} iX>!ju'V
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publicvoid setStartIndex(int startIndex){ zT4ulXN
if(totalCount <= 0) |$SvD2^
this.startIndex = 0; 8}pcanPg
elseif(startIndex >= totalCount) ?5r2j3mqgv
this.startIndex = indexes 9pl_V
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[indexes.length - 1]; U Qi^udGFD
elseif(startIndex < 0) @F3-Ugm
this.startIndex = 0; Qa7S'(
else{ aCH:#|B
this.startIndex = indexes WFeMr%Zqh>
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[startIndex / pageSize]; #<tWYE
} jL7MmR#y5"
} S$lmEJ_
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publicint getNextIndex(){ rjpafGCp
int nextIndex = getStartIndex() + OFQi&/
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pageSize; yhkQFB%gv
if(nextIndex >= totalCount) Io4:$w
return getStartIndex(); }x#P<d(
else wc+N
return nextIndex; T956L'.+G
} 49J+&G?)j
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publicint getPreviousIndex(){ OJ_2z|f<
int previousIndex = getStartIndex() - \_I)loPc8
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pageSize; O[hbu ![
if(previousIndex < 0) @DQ"vFj6<
return0; X%9xuc
else Mly z><
return previousIndex; J?Ep Nie
} MVeQ5c(
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} wx"6",M
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抽象业务类 Q@ ) rw0$
java代码: `Z7ITvF>
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/** WtdkA Sj
* Created on 2005-7-12 AINFua4 A
*/ s[B6%DI/5
package com.javaeye.common.business; Y"/UYxCm|&
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import java.io.Serializable; 6:EH5IO
import java.util.List; u<y\iZ[
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import org.hibernate.Criteria; xXU/m|
import org.hibernate.HibernateException; kN9sug^
import org.hibernate.Session; /6+%(f}7l
import org.hibernate.criterion.DetachedCriteria; mQA<t)1
import org.hibernate.criterion.Projections; klC^xSx
import h%w\O Z7
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org.springframework.orm.hibernate3.HibernateCallback; 3JE;:2O~P
import zs&`:
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org.springframework.orm.hibernate3.support.HibernateDaoS ep}/dBg
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upport; 4TQISu)
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import com.javaeye.common.util.PaginationSupport; g/X=#!
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public abstract class AbstractManager extends U)/Ul>dY
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HibernateDaoSupport { NdSxWrD`m
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privateboolean cacheQueries = false; tEX~72v
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privateString queryCacheRegion; ])wMUJWg2
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publicvoid setCacheQueries(boolean wY
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cacheQueries){ 3F'dT[;
this.cacheQueries = cacheQueries; x>9EVa)
} F.
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publicvoid setQueryCacheRegion(String OYtus7q<
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queryCacheRegion){ Lr\ B
this.queryCacheRegion = o>A%}YU
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queryCacheRegion; KZ}4<{3
} >)A
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publicvoid save(finalObject entity){ %^%-h}1
getHibernateTemplate().save(entity); g+/U^JIc4l
} GN;XB b]w
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publicvoid persist(finalObject entity){ >hL'#;:f#
getHibernateTemplate().save(entity); F Hcqu_;J
} ` dUiz5o'
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publicvoid update(finalObject entity){ ;Kq?*H
getHibernateTemplate().update(entity);
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} }~CZqIP
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publicvoid delete(finalObject entity){ T\s#-f[x
getHibernateTemplate().delete(entity); ;yER
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} ^-;Z8M
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publicObject load(finalClass entity, :=7 '1H
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finalSerializable id){ 5)v^
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return getHibernateTemplate().load gwz _b
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(entity, id); ;,})VoC\!
} %dU'$)
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publicObject get(finalClass entity, 7%}3Ghc%
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finalSerializable id){ f EiEfu
return getHibernateTemplate().get +;iesULXn
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(entity, id); :*+BBC
} \q1%d.\X
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publicList findAll(finalClass entity){ vhEs +j
return getHibernateTemplate().find("from }R5&[hxh4t
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" + entity.getName()); `6sQlCOnF
} %R"/`N9R,
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publicList findByNamedQuery(finalString q.QYn.CBZz
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namedQuery){ ;k%sKVP
return getHibernateTemplate a[cH@7W.#
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