Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 (A fbS=[
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 }.V0SM6
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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 IYg3ve`x
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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 nk$V{(FJ
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分页支持类: <;0N@
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java代码: | 4oM+n;Y
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package com.javaeye.common.util; NF(IF.8G
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import java.util.List; `m; "I
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publicclass PaginationSupport { @TPgA(5NR
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publicfinalstaticint PAGESIZE = 30; vJAAAS
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privateint pageSize = PAGESIZE; Sb9=$0%\
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privateList items; ~EWfEHf*BJ
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privateint totalCount; r]O@HVbt$
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privateint[] indexes = newint[0]; AH87UkNL
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privateint startIndex = 0; '[yqi1
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public PaginationSupport(List items, int ?"<r9S|[O
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totalCount){ ^r$iN %&~
setPageSize(PAGESIZE); |od4kt
setTotalCount(totalCount); ;n7|.O]*
setItems(items); R ms01m>Y
setStartIndex(0); s.I1L?s1w?
} pM'IQ3N
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public PaginationSupport(List items, int qwNKRqT
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totalCount, int startIndex){ NuS|X
setPageSize(PAGESIZE); {}J@+Zsi
setTotalCount(totalCount); (06Vcqg
setItems(items); ;ko[(eFN@
setStartIndex(startIndex); )\D40,p
} e]*=sp!T
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public PaginationSupport(List items, int <,4R2'
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totalCount, int pageSize, int startIndex){ fov=Yd!
setPageSize(pageSize); JGO$4DK-1
setTotalCount(totalCount); ogc('HqF^'
setItems(items); ks%7W
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setStartIndex(startIndex); h6T/0YhWLP
} ['OCw {<
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publicList getItems(){ ^'u;e(AaE
return items; e=n{f*KG`
} F`BgKH!
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publicvoid setItems(List items){ \abAPo
this.items = items; |CZnq-,C
} Oz#EGjz
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publicint getPageSize(){ Vyt~OTI\
return pageSize; +/!=Ub[:U
} A{8K#@!
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publicvoid setPageSize(int pageSize){ DYT -#Ht
this.pageSize = pageSize; aa0`y
} iy.%kHC
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publicint getTotalCount(){ 3gI[]4lRH
return totalCount; DNW2;i<hsz
} Ub'%pU
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publicvoid setTotalCount(int totalCount){ ;&W;
if(totalCount > 0){ fr'huvc
this.totalCount = totalCount; Hr<C2p^a
int count = totalCount / -wfRR>)d
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pageSize; 16[-3cJ T
if(totalCount % pageSize > 0) `Ge +(1x
count++; jqX@&}3@
indexes = newint[count]; [C+Gmu
for(int i = 0; i < count; i++){ ,na=~.0R:
indexes = pageSize * N,/BudFo
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} 2i7i\?<.
}else{ s?@)a,C%k
this.totalCount = 0; <nb3~z1
} $p0 /6c
} vlPl(F1
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publicint[] getIndexes(){ aucZJjH
return indexes; 1~R$$P11[9
} R*Xu(89
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publicvoid setIndexes(int[] indexes){ Pn+IJ=0Y
this.indexes = indexes; &'huS?gA9
} J~iOP
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publicint getStartIndex(){ Y[iDX#
return startIndex; 62MRI
} @QVqpE<|
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publicvoid setStartIndex(int startIndex){ _^6|^PT.
if(totalCount <= 0) t":W.q<
this.startIndex = 0; a)_rka1(
elseif(startIndex >= totalCount) uEScAeQXsI
this.startIndex = indexes 'nlRY5@2
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[indexes.length - 1]; M q^|M~
elseif(startIndex < 0) %Le :wC
this.startIndex = 0; j!lAxlOX
else{ y^mWG1"O
this.startIndex = indexes
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[startIndex / pageSize]; *?^Z)C>
} Sg. +`xww3
} }xkLD!
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publicint getNextIndex(){ 4-7kS85
int nextIndex = getStartIndex() + |RR%bQ^{
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pageSize; _e?q4>B)c
if(nextIndex >= totalCount) ]DC;+;8Jc
return getStartIndex(); \);.0
else VX^o"9Ntl
return nextIndex; 49+ >f
} p{ @CoOn
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publicint getPreviousIndex(){ XMN?;Hj>
int previousIndex = getStartIndex() - 6o=qJ`m[?
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pageSize; ,&.W6sW
if(previousIndex < 0) Z0[)u_<
return0; ;dqk@@O"(
else J Q)4}t
return previousIndex; JkSdLj
} yaH
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} G3RrjWtO
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抽象业务类 M11"<3]D
java代码: 4meidKw]
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/** hD nM+4D
* Created on 2005-7-12 O^.%C`*
*/ Xh.+pJl,*
package com.javaeye.common.business; $uEJn&n7}
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import java.io.Serializable; PUbaS{J7
import java.util.List; ^ckj3Y#;
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import org.hibernate.Criteria; yWj9EHQU[
import org.hibernate.HibernateException; iD>G!\&