Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 hB[bth
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 s.M39W?
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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 (Y py}
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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 b'4a;k!rS
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分页支持类: v^A+LZ*d
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java代码: fY]"_P
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package com.javaeye.common.util; AA\)BNM
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import java.util.List; F:/x7]7??Z
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publicclass PaginationSupport { |q3X#s72
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publicfinalstaticint PAGESIZE = 30; }u#3 hYa
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privateint pageSize = PAGESIZE; +~n:*\
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privateList items; W" =l@}I
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privateint totalCount; l8~(bq1
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privateint[] indexes = newint[0]; sOqFEvzo1%
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privateint startIndex = 0; ~q`f@I
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public PaginationSupport(List items, int gk%01&_>4
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totalCount){ A=kOSq 4Q
setPageSize(PAGESIZE); #ss/mvc3
setTotalCount(totalCount); ]9_gbQ
setItems(items); :E}y
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setStartIndex(0); pW+uVv,
} { <Gyjq
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public PaginationSupport(List items, int OROvy
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totalCount, int startIndex){ pPa]@ z~O
setPageSize(PAGESIZE); 89>}`:xS^
setTotalCount(totalCount); 0
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setItems(items); ?OW!D?
setStartIndex(startIndex); 3li$)S1z
} # fqrZ9:@
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public PaginationSupport(List items, int J2}poNmm
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totalCount, int pageSize, int startIndex){ -ED}
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setPageSize(pageSize); 1\}XL=BE
setTotalCount(totalCount); nA0%M1a
setItems(items); SY|K9$M^
setStartIndex(startIndex); a4UwhbH
} aX1b(h2
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publicList getItems(){ /=YNkw5
return items; #
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} /a*){JQ5j
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publicvoid setItems(List items){ gy@=)R/~
this.items = items; ,KJHY m=Q
} dwk%!%
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publicint getPageSize(){ |!]
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return pageSize; `Pc6
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} S3/%;=|
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publicvoid setPageSize(int pageSize){ T^Ia^B-%}g
this.pageSize = pageSize; 8\68NG6o
} .;g kV-]
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publicint getTotalCount(){ 5IUdA?
return totalCount; ?PWg
} 2$Xof
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publicvoid setTotalCount(int totalCount){ IDn<5#
if(totalCount > 0){ y>}r
this.totalCount = totalCount; 2!0tD+B
int count = totalCount / @Dfg6<0
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pageSize; CIMI?
if(totalCount % pageSize > 0) Hk;;+ '-
count++; }Q4Vy
indexes = newint[count]; C]2-V1,ZX
for(int i = 0; i < count; i++){ ~\(c;J*Ir
indexes = pageSize * R_B0CM<!
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} .Pj<Pe
}else{ Z@1kx3Wx$
this.totalCount = 0; ZeuL*c \
} 27fLW&b2
} Wz.iDRFl
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publicint[] getIndexes(){ xgMh@@e
return indexes; ;Tnid7:S
} />mK.FT
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publicvoid setIndexes(int[] indexes){ s1Acl\l-uF
this.indexes = indexes; QNOdt 2NN
} l S,Jo/T@
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publicint getStartIndex(){ A0Nx?
return startIndex; +ZNOvcsV
} h"+7cc@
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publicvoid setStartIndex(int startIndex){ Lq5xp<
if(totalCount <= 0) JrOxnxd^
this.startIndex = 0; ;iuwIdo6c
elseif(startIndex >= totalCount) chL1r9V)v
this.startIndex = indexes g8uqW1E^
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[indexes.length - 1]; 3bWGWI
elseif(startIndex < 0) SPE)db3
this.startIndex = 0; :W, S
else{ ,5v'hG
this.startIndex = indexes Qz(2Iu{E]
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[startIndex / pageSize]; N\*oL*[j
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} N_bgW QY
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publicint getNextIndex(){ j%s,%#al
int nextIndex = getStartIndex() + lo>9 \ Po
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pageSize; 3S3(Gl
if(nextIndex >= totalCount) 'r 7[9[
return getStartIndex(); ,Suk_aX>
else Ztmh z_u7
return nextIndex; 4,LS08&gh
} yF(9=z"?
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publicint getPreviousIndex(){ Bza<.E=
int previousIndex = getStartIndex() - 9SsVJ<9,R
+ )Qu,%2
pageSize; {.$7g8]I
if(previousIndex < 0) n7bVL#Sq[
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else IrL7%?
return previousIndex; +8zACs{p
} dP_QkO
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抽象业务类 "qq$i35x
java代码: Bbs1U
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/** s?}qia\~m
* Created on 2005-7-12 *,G<X^
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package com.javaeye.common.business; M
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import java.io.Serializable; LmJjO:W}^y
import java.util.List; )q_,V"
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import org.hibernate.Criteria; YaS!YrpI
import org.hibernate.HibernateException; e*T^:2oRl
import org.hibernate.Session; 5/P. 4<c7
import org.hibernate.criterion.DetachedCriteria; t`Bk2Cc)+
import org.hibernate.criterion.Projections; 1R@G7m
import *Hn=)q
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org.springframework.orm.hibernate3.HibernateCallback; E|9`J00
import }Y7P2W+4?
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org.springframework.orm.hibernate3.support.HibernateDaoS 7fypUQ:y
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upport; O<p=&=TD7
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import com.javaeye.common.util.PaginationSupport; b)IQa,enH
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public abstract class AbstractManager extends |e#W;q$v
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HibernateDaoSupport { m<j;f
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privateboolean cacheQueries = false; ?a,#p
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privateString queryCacheRegion; |s/Kb]t
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publicvoid setCacheQueries(boolean 4PD5i
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cacheQueries){ r Yt|[Pk
this.cacheQueries = cacheQueries; *Jcd_D\-(1
} |(tl
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publicvoid setQueryCacheRegion(String g
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queryCacheRegion){ S^~"#
this.queryCacheRegion = el$@^Wy&$
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queryCacheRegion; Ge=6l0
} t|V5[n!
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publicvoid save(finalObject entity){ PSAEW.L
getHibernateTemplate().save(entity); O=}
} mW)kWuOO
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publicvoid persist(finalObject entity){ B7qi|Fw
getHibernateTemplate().save(entity); N4qBCBr(
} rg[#(
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publicvoid update(finalObject entity){ !ck luj
getHibernateTemplate().update(entity); tol-PJS}
} `yl|NL
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publicvoid delete(finalObject entity){ ;xh.95BP`
getHibernateTemplate().delete(entity); Y[b08{/
} |4BD
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publicObject load(finalClass entity, GZ5 DI+3
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finalSerializable id){ mK7SEH;
return getHibernateTemplate().load ORX<ZOt1
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(entity, id); TG?>;It&
} oEZhKVyc.y
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publicObject get(finalClass entity,
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finalSerializable id){ _o?aO C
return getHibernateTemplate().get +Y+fM
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(entity, id);
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} !6taOT>v
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publicList findAll(finalClass entity){ 2GigeN|1N
return getHibernateTemplate().find("from m/g[9Y
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" + entity.getName()); ,{ 0&NX
} NP\/9
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publicList findByNamedQuery(finalString H2g#'SK@
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namedQuery){ tG"EbWi
return getHibernateTemplate %dd B$(
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().findByNamedQuery(namedQuery); \,nhGh
} T-s[na(/L
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