Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 Zh^w)}(W
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 hhhO+D1(
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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 M7 !"
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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 \/v$$1p2
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分页支持类: 4PQWdPv;
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java代码: f
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package com.javaeye.common.util; :TI1tJS~*
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import java.util.List; +)SX
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publicclass PaginationSupport { VIzZmd
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publicfinalstaticint PAGESIZE = 30; rI/KrBM
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privateint pageSize = PAGESIZE; %>TdTt
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privateList items; 8t%1x|!
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privateint totalCount; G\%hT5^
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privateint[] indexes = newint[0]; \.]
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privateint startIndex = 0; =Frr#t!(w0
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public PaginationSupport(List items, int cDg27xOUi
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totalCount){ r$5!KO
setPageSize(PAGESIZE); 51x,[y+Xe
setTotalCount(totalCount); :cTi$n
setItems(items); qv\yQ&pj
setStartIndex(0); RMK
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} uE(w$2Wi
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public PaginationSupport(List items, int whCv9)x
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totalCount, int startIndex){ ?9+;[X
setPageSize(PAGESIZE); UlrY
setTotalCount(totalCount); ikQ2x]Sp
setItems(items); rNc>1}DDS
setStartIndex(startIndex); 1o%Hn"uG
}
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public PaginationSupport(List items, int 7Y/_/t~Y
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totalCount, int pageSize, int startIndex){ 8@-US ,|
setPageSize(pageSize); A7H=#L+C
setTotalCount(totalCount); R9(^CWs
setItems(items); -|mABHjx*
setStartIndex(startIndex); *?{)i~
} 5 *_#"
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publicList getItems(){ |UG)*t/
return items; T[~X~dqwn"
} [z\*Zg
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publicvoid setItems(List items){ lV8Mr6m
this.items = items; N5^:2ag
} +Q.[W`goV
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publicint getPageSize(){ +dfSCs
return pageSize; sC>8[Jatd
} 2 E^P=jU`
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publicvoid setPageSize(int pageSize){ -IE;5f#e
this.pageSize = pageSize; d9s"y?8
} _
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publicint getTotalCount(){ F~EriO
return totalCount; k.%F!sK
} m`Z4#_s2
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publicvoid setTotalCount(int totalCount){ C}CX n X
if(totalCount > 0){ v!2`hqO
this.totalCount = totalCount; "2mVW_k
int count = totalCount / F>OYZOC]
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pageSize; kDsUKO
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if(totalCount % pageSize > 0) #]rw@c
count++; Ab`G b
indexes = newint[count]; #ed]zI9O
for(int i = 0; i < count; i++){ 6*$N@>8&
indexes = pageSize * _wIAr
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} (U)=t$=o
}else{ XIU2l}g
this.totalCount = 0; lG2){){j
} &A~ 1Q#4
} n}2}4^
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publicint[] getIndexes(){ C4y<+G.`
return indexes; pxgv(:Tw
} \C#Vh7z"2&
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publicvoid setIndexes(int[] indexes){ AWw:N6\
this.indexes = indexes;
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} yDPek*#^"q
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publicint getStartIndex(){ bz1\EkLL
return startIndex; bkb}M)C
} {+!_; zzZ
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publicvoid setStartIndex(int startIndex){ kns[b [!H
if(totalCount <= 0) I)clGMS,
this.startIndex = 0; c8(.bmvF
elseif(startIndex >= totalCount) l1@:&j3h
this.startIndex = indexes "YivjHa7H
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[indexes.length - 1]; %lujme
elseif(startIndex < 0) @^%# ]x,:
this.startIndex = 0; _b+3;Dy
else{ t<4+CC2H
this.startIndex = indexes K~uoZ~_gA
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[startIndex / pageSize]; Xh?{%?2
} !$j'F? 2>
} \!_ >ul
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publicint getNextIndex(){ NS\'o
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int nextIndex = getStartIndex() + kM.zX|_
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pageSize; {9(N?\S1`a
if(nextIndex >= totalCount) o^Ms(?K%t
return getStartIndex(); 44!bwXz8
else E]bjI$j
return nextIndex; >scEdeM
} ]1X];x&e
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publicint getPreviousIndex(){ oC[$PPqX#
int previousIndex = getStartIndex() - +?%huJYK,
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pageSize; GZse8ng
if(previousIndex < 0) j &~OR6
return0; J
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else zH.7!jeE
return previousIndex; 0 j6/H?OT
} "/K44(^
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} nM@S`"
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抽象业务类 QHK$2xtq|
java代码: )8yNqnD
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/** jfk`%CEk=
* Created on 2005-7-12 fF;-d2mF
*/ fxjs"rD5
package com.javaeye.common.business; %{axoGd
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import java.io.Serializable; A%pcPzG;
import java.util.List; {@k5e)
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import org.hibernate.Criteria; 66v6do7
import org.hibernate.HibernateException; /mmCqP
import org.hibernate.Session; |[8&5[);
import org.hibernate.criterion.DetachedCriteria; IG
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import org.hibernate.criterion.Projections; q45Hmz
import h60*=+vdJ
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org.springframework.orm.hibernate3.HibernateCallback; |*Hw6m
import <yBZsSj
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org.springframework.orm.hibernate3.support.HibernateDaoS _8S!w>$)
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upport; 0:Xvch0
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import com.javaeye.common.util.PaginationSupport; @jX[Ho0W'
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public abstract class AbstractManager extends bP(xMw<'j
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HibernateDaoSupport { Fc{hzqaP8
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privateboolean cacheQueries = false; .cjSgK1
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privateString queryCacheRegion; Z%k)'%_
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publicvoid setCacheQueries(boolean fQM:NI?9?
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cacheQueries){
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this.cacheQueries = cacheQueries; 6|L<?
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} `J#(ffo-
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publicvoid setQueryCacheRegion(String rUR{MF&]D
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queryCacheRegion){ >T=($:n
this.queryCacheRegion = GG-7YJ
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queryCacheRegion; JdF;*`_7*
} ycTX\.KV
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publicvoid save(finalObject entity){ nD6NLV%2x
getHibernateTemplate().save(entity); wknX\,`Q
} 9 "7(Jq
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publicvoid persist(finalObject entity){ W$=Ad *
getHibernateTemplate().save(entity); 8HDYA$L
} &]iiBp#2
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publicvoid update(finalObject entity){ !RN(/ &%y
getHibernateTemplate().update(entity); j#rjYiYKy
} /I(IT=kp
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publicvoid delete(finalObject entity){ UiO%y
getHibernateTemplate().delete(entity); ],V_"\ATD
} OrNi<TY>
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publicObject load(finalClass entity, Yi1lvB?m
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finalSerializable id){ .5Sw
return getHibernateTemplate().load tNj-~r
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(entity, id); `83s97Sa
} d0vn/k2I
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publicObject get(finalClass entity, $dIu${lu
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finalSerializable id){ 78T9"CS
return getHibernateTemplate().get lV<2+Is
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