Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 !z(POK
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 l0tMdsz
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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 3UD_2[aqN(
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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 sUfH1w)0
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分页支持类: }n:'@}
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java代码: T9RR.
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package com.javaeye.common.util; F FR_1Vf
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import java.util.List; 1xL2f&bG
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publicclass PaginationSupport { JT[|l-\zo
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publicfinalstaticint PAGESIZE = 30; ,U],Wu)
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privateint pageSize = PAGESIZE; HR\yJt
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privateList items; {/XzIOO;b
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privateint totalCount; >Ah [uM
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privateint[] indexes = newint[0]; ysGK5kFz
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privateint startIndex = 0; -?2ThvT
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public PaginationSupport(List items, int #&1mc_`/
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totalCount){ g>/,},jv[x
setPageSize(PAGESIZE); z1T.\mzfX
setTotalCount(totalCount); $w)yQ %
setItems(items); Rl.3p<sX
setStartIndex(0); SEIGs_^'\
} Q;)[~p
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public PaginationSupport(List items, int 8nt:peJ$+
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totalCount, int startIndex){ X*]uLgbl
setPageSize(PAGESIZE); +sQ=Uw#e
setTotalCount(totalCount); "sUL"i
setItems(items); w%S\)wjS
setStartIndex(startIndex); }/SbmW8(1
} a7%5Qg9B;
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public PaginationSupport(List items, int O<Ht-TN&
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totalCount, int pageSize, int startIndex){ A%k@75V@
setPageSize(pageSize); l<(MC R*
setTotalCount(totalCount);
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setItems(items); oa}-=hG
setStartIndex(startIndex); A=I]1r
} U$# ?Lw
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publicList getItems(){ Xb?P'nD
return items; ?`uY*+u
} QuT8(s1Q!
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publicvoid setItems(List items){ t*NZ@)>
this.items = items; w;&J._J
} GXYmJ4wR
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publicint getPageSize(){ ;Lu%v%BM
return pageSize; x5.HdKV
} pBL,kqYNA>
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publicvoid setPageSize(int pageSize){ .Quu_S_vH
this.pageSize = pageSize; i,8h
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} ;8'hvc3i$
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publicint getTotalCount(){ A Ns.`S
return totalCount; 4fT,/[k?
} plh.-"
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publicvoid setTotalCount(int totalCount){ Q0#oR[(
if(totalCount > 0){ Rf^$?D&^
this.totalCount = totalCount; "|{NRIE
int count = totalCount / (Dlh;Ic
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pageSize; Yev] Lp
if(totalCount % pageSize > 0) ~4"adOv
count++; P%8
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indexes = newint[count]; |cEJRs@B
for(int i = 0; i < count; i++){ AA6_D?)vv
indexes = pageSize * Y}&//S A
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} -+Axa[,5=
}else{ 9y{[@KG
this.totalCount = 0; =3]}87
} ^ r-F@$:.
} }3E@]"<cVR
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publicint[] getIndexes(){ ^HgQ"dD
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return indexes; , ;W6wj
} q6bi{L@/R
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publicvoid setIndexes(int[] indexes){ LBq~?Q.e
this.indexes = indexes; Iojyku\W.
} IDQ@h`"B
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publicint getStartIndex(){ d&BocJ
return startIndex; ]P;uQ!
}
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publicvoid setStartIndex(int startIndex){ 5^<X:1J$
if(totalCount <= 0)
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this.startIndex = 0; Bi;D d?.
elseif(startIndex >= totalCount) t~H'Ugv^
this.startIndex = indexes j]U sb_7
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[indexes.length - 1]; }TY}sr
elseif(startIndex < 0) b#`XmB
this.startIndex = 0; VkTdpeBV
else{ 7I;xRo|
this.startIndex = indexes NRN3*YGo
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[startIndex / pageSize];
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} YT'G#U1x~
} a"SH_+T{
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publicint getNextIndex(){ 7?!A~Seo|
int nextIndex = getStartIndex() + F0:|uC4
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pageSize; #5)0~4%l
if(nextIndex >= totalCount) qB6@OS
return getStartIndex(); #S)]`YW
else TUHm.!+a
return nextIndex; hsG~xRA\
} O#LG$Y
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publicint getPreviousIndex(){ $mdmuUIy-3
int previousIndex = getStartIndex() - R[KF${X4
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pageSize; ?QxI2J
if(previousIndex < 0) _&V%idz!0
return0; &.XlXihnt
else POvxZU
return previousIndex; Le;;Yd}f
} x93h{Kf
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} )3K# ${p
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抽象业务类 :btb|^C
java代码: NwAvxN<R(f
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/** 9{[I|
* Created on 2005-7-12 TL&