Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 T^A[m0mk
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 c7.M\f P
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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 zRgAmX/g
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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 L2wX?NA
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分页支持类: 2XEE/]^
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java代码: C{+JrHV%h
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package com.javaeye.common.util; xo2jfz
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import java.util.List; O<ybiPR
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publicclass PaginationSupport { c^&4m[?C[u
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publicfinalstaticint PAGESIZE = 30; #hk5z;J5
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privateint pageSize = PAGESIZE; dkqyn"^
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privateList items; *aq"c9
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privateint totalCount; ] g8z@r"b
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privateint[] indexes = newint[0]; p=^6V"'
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privateint startIndex = 0; JcMl*k
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public PaginationSupport(List items, int 'Hs*
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totalCount){ t/3HX]B_
setPageSize(PAGESIZE); $sUn'62JlU
setTotalCount(totalCount); F)Z9Qlo
setItems(items); u \<APn
setStartIndex(0); k3KT':*
} "d/uyS$6
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public PaginationSupport(List items, int gdg``U;)p
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totalCount, int startIndex){ -s1.v$g
setPageSize(PAGESIZE); x 0#u2j?zj
setTotalCount(totalCount); 3_.%NgES|
setItems(items); ~)zxIO!
setStartIndex(startIndex); r8!pk~R5]
} }8s&~fH
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public PaginationSupport(List items, int WQ9Q:F2
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totalCount, int pageSize, int startIndex){ n&DBMU
setPageSize(pageSize); EXwU{Hl
setTotalCount(totalCount); owI:Qs_/4
setItems(items); 7j29wvSp5
setStartIndex(startIndex); @1' Y/dCyD
} EWY'E;0@5
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publicList getItems(){ Rf2mBjJ(z
return items; /a9CqK
} C7f*Q[
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publicvoid setItems(List items){ yk(r R
this.items = items; TAqX
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} TtH!5{$s
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publicint getPageSize(){ l;&kX6 w
return pageSize; =''b `T$
} {oR@'^N
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publicvoid setPageSize(int pageSize){ cV_-Bcb
this.pageSize = pageSize; wAJ=rRI
} )]4=anJu@|
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publicint getTotalCount(){ mlUj%:Gm#
return totalCount; iq^;c syKb
} Koj9]2<0
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publicvoid setTotalCount(int totalCount){ SoHaGQox
if(totalCount > 0){ k*!iUz{]
this.totalCount = totalCount; +@H{H2J 4
int count = totalCount / M{jq6c
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pageSize;
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if(totalCount % pageSize > 0) 5uOz #hN
count++; mdo$d-d&
indexes = newint[count]; 4sW~7:vU
for(int i = 0; i < count; i++){ :z *jl'L
indexes = pageSize * x9S9%JG :
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} JfK4|{@
}else{ SU6Aq?`@
this.totalCount = 0; ^HtB!Xc
} I_ kA!^
} n3qRt
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publicint[] getIndexes(){
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return indexes; Z",2db
} Mn<s9ITS-
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publicvoid setIndexes(int[] indexes){ ?Zk;NL9
this.indexes = indexes; @*- 6DG-f
} R@/"B?`(f
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publicint getStartIndex(){ e&Q
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return startIndex; >,I'S2_Zl
} lC,~_Yb
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publicvoid setStartIndex(int startIndex){ +Z86Qz_
if(totalCount <= 0) b`,Sd.2=('
this.startIndex = 0; '
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elseif(startIndex >= totalCount) 4HX;9HPHE<
this.startIndex = indexes UI%4d3
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