Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 fln[Q2zl
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 .$s']' =
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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 5BA:^4zr?
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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 yf*'=q
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分页支持类: ]Sj;\Iz
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java代码: Zb_A(mnzh
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package com.javaeye.common.util; mxEe
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import java.util.List; >-V632(/{o
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publicclass PaginationSupport { E-^(VZ_Xj
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publicfinalstaticint PAGESIZE = 30; U B+~K/
/*;a6S8q
privateint pageSize = PAGESIZE; 0e&&k
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privateList items; <#8}![3Q
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privateint totalCount; HY_>sD
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privateint[] indexes = newint[0]; \A^8KVE!
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privateint startIndex = 0; _8 r'R
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public PaginationSupport(List items, int '+Jy//5?
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totalCount){ 0,-]O=
setPageSize(PAGESIZE); X9PbU1o;
setTotalCount(totalCount); @-K[@e/uwy
setItems(items); ;HAvor=?
setStartIndex(0); Q\zaa9P
} %7-(c
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public PaginationSupport(List items, int )n"0:"Ou
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totalCount, int startIndex){ u`wD6&y*
setPageSize(PAGESIZE); QDj%m %Xd
setTotalCount(totalCount); KaMg[G
setItems(items); )-"<19eu
setStartIndex(startIndex); ]35`N<Ac
} P0; y
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public PaginationSupport(List items, int [(a3ljbRX
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totalCount, int pageSize, int startIndex){ =}tomN(F~[
setPageSize(pageSize); N"<.v6Z
setTotalCount(totalCount);
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setItems(items); O*/%zr
setStartIndex(startIndex); S]=.p-Am
} IAzFwlO9
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publicList getItems(){ .Y2Hd$rs
return items; NRG06M
} #5h_{q4l
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publicvoid setItems(List items){ @r[SqGa:
this.items = items; mW {uChHP
} l?IeZisX
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publicint getPageSize(){ ewT
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return pageSize; dh%O {t
} >Q<XyAH~
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publicvoid setPageSize(int pageSize){ b&@]f2/
this.pageSize = pageSize; U/PNEGuQ
} %CYo,
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publicint getTotalCount(){ 6:S,
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return totalCount; /Z]nV2$n)V
} I9L3Y@(f6m
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publicvoid setTotalCount(int totalCount){ UrciCOQf
if(totalCount > 0){ g]JJ!$*1
this.totalCount = totalCount; Z" H; t\P
int count = totalCount / UAz^P6iQ`~
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pageSize; $?!]?{K
if(totalCount % pageSize > 0) ?7)v:$(G}
count++; %Iflf]l
indexes = newint[count]; l'Za"TL:
for(int i = 0; i < count; i++){ jmgkY)rb R
indexes = pageSize * "0nsY E
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} KF(y`(8f
}else{ x0%m}P/
this.totalCount = 0; #hn
} "9^b1UH<
} \tvL<U"'
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publicint[] getIndexes(){ 'bLP#TAzf
return indexes; t90M]EAV
} {hOS0).(w7
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publicvoid setIndexes(int[] indexes){ QjXJo$I6
this.indexes = indexes; aaf}AIL.
} f*"T]AX0
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publicint getStartIndex(){ Eo^m; p5
return startIndex; -z.
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} l="X|t
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publicvoid setStartIndex(int startIndex){ YC St X)r
if(totalCount <= 0) At<MY`ka
this.startIndex = 0; H-&27?s^
elseif(startIndex >= totalCount) T<>B5G~%
this.startIndex = indexes Qp[
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[indexes.length - 1]; &qPezyt
elseif(startIndex < 0) -0q|AB<
this.startIndex = 0; wXp:XZ:]T
else{ QsxvA;7%
this.startIndex = indexes ?[bE/Ya+S
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[startIndex / pageSize]; `WCL-OoZc5
} 7neJV
} |.RyF@N`T
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publicint getNextIndex(){ &R.5t/x_
int nextIndex = getStartIndex() + ORP<?SG55u
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pageSize; tboQn~&4
if(nextIndex >= totalCount) '{~[e**
return getStartIndex(); WvF{`N
else G Wa6FX:/
return nextIndex; "1a!]45 +
} 'ParMT
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publicint getPreviousIndex(){ SD*q+Si,1U
int previousIndex = getStartIndex() - z__t8yc3
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pageSize; a%HNz_ro
if(previousIndex < 0) b"#S92R+
return0; mX.mX70|J
else Xl2g Hh
return previousIndex; @}Ry7H0O
} |6?s?tC"u
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} bWb/>hI8
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抽象业务类 }OnU32P
java代码: `_GCS,/t
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/** s}Go")p<:
* Created on 2005-7-12 UMNNAX
*/ |Fze9kZO
package com.javaeye.common.business; 3}phg
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import java.io.Serializable; 19(x$=:
import java.util.List; >*O5Ry:4
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import org.hibernate.Criteria; rq7yNt
import org.hibernate.HibernateException; 3k>#z%//
import org.hibernate.Session; !wd
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import org.hibernate.criterion.DetachedCriteria; wDoCc:
import org.hibernate.criterion.Projections; c-NUD$
import &@{`{
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org.springframework.orm.hibernate3.HibernateCallback; jCtk3No
import 52#
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org.springframework.orm.hibernate3.support.HibernateDaoS E]&N'+T
%nq<nfDT
upport; /<[_V/g[t?
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import com.javaeye.common.util.PaginationSupport; dn])6Xl;i
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public abstract class AbstractManager extends S?i^ ~
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HibernateDaoSupport { x4g6Qze
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privateboolean cacheQueries = false; $4ZV(j]
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privateString queryCacheRegion; =Oh$pZRymu
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publicvoid setCacheQueries(boolean Si~wig2
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cacheQueries){ #k>n5cR@0
this.cacheQueries = cacheQueries; rmvrv.$3
} ZW"f*vwQo
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publicvoid setQueryCacheRegion(String /{8Y,pZbu
@##}zku
queryCacheRegion){ 4mp)v*z
this.queryCacheRegion = #WG;p(?:
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queryCacheRegion; |8k^jq
} F:<+}{Av
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publicvoid save(finalObject entity){ :$yOic}y
getHibernateTemplate().save(entity); MU] F'6V
} OraT$lV)_
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publicvoid persist(finalObject entity){ 0]DX KI
getHibernateTemplate().save(entity); x2I|iA =
} =M@)qy
im:[ViR {
publicvoid update(finalObject entity){ 9%ct
getHibernateTemplate().update(entity); s2N'Ip
} +J| LfXgB
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publicvoid delete(finalObject entity){ / M]P&Zb |
getHibernateTemplate().delete(entity); {*CG&-k2D
} BBX/ &d8n
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publicObject load(finalClass entity, ';v2ld 9
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finalSerializable id){ UDJ#P9uy
return getHibernateTemplate().load k8}'@w
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(entity, id); K]>4*)A:
} u\xrC\Ka
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publicObject get(finalClass entity, "k [$euV
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finalSerializable id){ UDcr5u eKn
return getHibernateTemplate().get y}U'8*,
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(entity, id); @*op5qVw
} A9DFZZ0
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publicList findAll(finalClass entity){ +dq2}gM
return getHibernateTemplate().find("from wp~KrUlR
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" + entity.getName()); yl' IL#n]r
} 5c%Fb:BW=
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publicList findByNamedQuery(finalString z:dW 'U?1
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namedQuery){ X&49C:jN
return getHibernateTemplate id`9,IJx
v)K|{x
().findByNamedQuery(namedQuery); #gf0*:p
} oM#+Z
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