Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 :?=Q39O9
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 9_ZBV{
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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 7X}TB\N1
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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 edijfhn
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分页支持类: U]hF
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java代码: dv~pddOs
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package com.javaeye.common.util; 4(=kE>n}
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import java.util.List; E1 |<Pt
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publicclass PaginationSupport { 8[zb{PRu
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publicfinalstaticint PAGESIZE = 30; vvq/
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privateint pageSize = PAGESIZE; NvJV</l6A
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privateList items; 0(y:$
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privateint totalCount; +;Cr];b3
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privateint[] indexes = newint[0]; mnjs(x<m
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privateint startIndex = 0; 2-dh;[4
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public PaginationSupport(List items, int Vr=OYI'A
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totalCount){ raE
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setPageSize(PAGESIZE); "AC^ rz~U
setTotalCount(totalCount); "(`2eXRn
setItems(items); c2 A ps
setStartIndex(0); ^m!_2_q
} 1J{fXh
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public PaginationSupport(List items, int &!L:"]=+
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totalCount, int startIndex){ /_t|Dry015
setPageSize(PAGESIZE); Y$<D9fs3
setTotalCount(totalCount); pKT2^Q}-h
setItems(items); ]Gv!M?:
setStartIndex(startIndex); ; s|w{.<:
} eC! #CK
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public PaginationSupport(List items, int ?9mkRd}c
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totalCount, int pageSize, int startIndex){ 8'#/LA[uPe
setPageSize(pageSize); jlqv2V7=/
setTotalCount(totalCount); .cDOl_z<:G
setItems(items); }Fa%%}
setStartIndex(startIndex); J?&l*_m;t
} +=BAslk
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publicList getItems(){ G2:%g(
return items; DinPxtT?a
} W),l
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publicvoid setItems(List items){ >C r\y
this.items = items; %lw! e
} {X~gwoz
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publicint getPageSize(){ b2C`g]ibQ
return pageSize; M.q=p[
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publicvoid setPageSize(int pageSize){ o!c]
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this.pageSize = pageSize; ?K_
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publicint getTotalCount(){ \%0n}.A
return totalCount; r'GP$0rr9!
} U{@5*4
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publicvoid setTotalCount(int totalCount){
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if(totalCount > 0){ pkgjTXR2b
this.totalCount = totalCount; lIRlMLuG
int count = totalCount / |7k_N|E
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pageSize; )%d*3\Tsd
if(totalCount % pageSize > 0) ntVS:F
count++; vBcq_sbo
indexes = newint[count]; Pe;Y1Qq>>
for(int i = 0; i < count; i++){ 3qL>-%):*
indexes = pageSize *
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{
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} m908jI_So
}else{ v'!a\b`9
this.totalCount = 0; N$>^g"6o
} aj^wRzJ}zA
} P!G858V(
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publicint[] getIndexes(){ jho**TQ P
return indexes; Om;&_!i
} !%)F J:p
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publicvoid setIndexes(int[] indexes){ (Qo I<j""
this.indexes = indexes; ZyrI R
} (xHf4[[u
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publicint getStartIndex(){ %a+mk
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return startIndex; G+UMBn
} \R36w^c3
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publicvoid setStartIndex(int startIndex){ Eow_WW;P
if(totalCount <= 0) l
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this.startIndex = 0; hCjR&ZA
elseif(startIndex >= totalCount) L>yJ
this.startIndex = indexes W\&8auds
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[indexes.length - 1]; Qx;\USv
elseif(startIndex < 0) U4aU}1RKz
this.startIndex = 0; /='. 4v
else{ InXn%9]p]
this.startIndex = indexes #txE=e"&o
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[startIndex / pageSize]; AV9m_hZt
} |KSy`lY-j>
} 1cS}J:0P
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publicint getNextIndex(){ S"wR%\NIp
int nextIndex = getStartIndex() + 7(5xL T$
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pageSize; y{dTp
if(nextIndex >= totalCount) .ZvM ^GJb
return getStartIndex(); ![]``g2
else i;LXu%3\
return nextIndex; z 9FfU
} o(DOQ Gl
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publicint getPreviousIndex(){ 91=OF*w
int previousIndex = getStartIndex() - TT=b79k
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pageSize; ; ;L[e]Z
if(previousIndex < 0) 1
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else <Utnz)
return previousIndex; B2-V@06
} Ecd;<$tk
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} Jn{OWw2
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抽象业务类 =-IbS}3
java代码: tjupJ*Rt
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/** uc;8 K,[t
* Created on 2005-7-12 n4}Br;%
*/ ?b(=1S\E'^
package com.javaeye.common.business; ?VP8ycm
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import java.io.Serializable; ?OkWe<:4
import java.util.List; sBr_a5QQ#
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import org.hibernate.Criteria; .zi_[
import org.hibernate.HibernateException; ^J$2?!~
import org.hibernate.Session; W[Ls|<Q
import org.hibernate.criterion.DetachedCriteria; {phNds%
import org.hibernate.criterion.Projections; qWQ/'M
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org.springframework.orm.hibernate3.HibernateCallback; Y;?{|
import _lamn}(x0
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org.springframework.orm.hibernate3.support.HibernateDaoS ["h5!vj
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upport; "wNJ
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import com.javaeye.common.util.PaginationSupport; ,6-:VIHQ
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public abstract class AbstractManager extends \O2Rhz
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HibernateDaoSupport { U4d:] z
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privateboolean cacheQueries = false; vEJWFoeEFm
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privateString queryCacheRegion; e
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publicvoid setCacheQueries(boolean Lm%:K]X
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cacheQueries){ 0yD9SJn
this.cacheQueries = cacheQueries; k?+?v?I
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} .yz}ROmN^
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publicvoid setQueryCacheRegion(String vSEuk}pk
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queryCacheRegion){ #d6)#:uss
this.queryCacheRegion = YNQY4\(
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queryCacheRegion; \W~N
} E|iQc8gr&
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publicvoid save(finalObject entity){ 1*\o.
getHibernateTemplate().save(entity); LY%WD%pL
} 45@^L's
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publicvoid persist(finalObject entity){ .(K)?r-g5
getHibernateTemplate().save(entity); ~E17L]ete
} 6 (]Dh;gC
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publicvoid update(finalObject entity){ EV]1ml k$
getHibernateTemplate().update(entity); hgPa6Kd
} fD[*_^;h)
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publicvoid delete(finalObject entity){ ZrpU <
getHibernateTemplate().delete(entity); IxY|>5z
} b,7k)ND1F
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publicObject load(finalClass entity, =;Au<|
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finalSerializable id){ MTuV^0%jD
return getHibernateTemplate().load NPy&O