Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 dMRwQejY{7
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 i;6\tK"!
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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 5kC#uk
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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 D@DK9?#
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分页支持类: tHJ1MDw'
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java代码: kZUuRB~om
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package com.javaeye.common.util; {[r'+=}l\S
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import java.util.List; , LcMNP r
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publicclass PaginationSupport { *aG0p&n}
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publicfinalstaticint PAGESIZE = 30; {7(h%]
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privateint pageSize = PAGESIZE; hzKfYJcQ|
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privateList items; <6v7_
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privateint totalCount; <@JU0Z"a=
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privateint[] indexes = newint[0];
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privateint startIndex = 0; $?*+P``
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public PaginationSupport(List items, int >z[d~
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totalCount){ HL 88
setPageSize(PAGESIZE); ?W.Y
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setTotalCount(totalCount); Bu6t3
setItems(items); Bm~>w`1wK
setStartIndex(0); ;uba
} >!bYuVHA
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public PaginationSupport(List items, int >D-$M_
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totalCount, int startIndex){ YRC`2)_'
setPageSize(PAGESIZE); NA0hQGN}
setTotalCount(totalCount); ry7(V:ic
setItems(items); K.X% Q,XD
setStartIndex(startIndex); (\WePOy&
} {/n$Y|TIQt
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public PaginationSupport(List items, int I"DV}jg6|
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totalCount, int pageSize, int startIndex){ #jDO?Y Sa
setPageSize(pageSize); 55,vmDd
setTotalCount(totalCount); aQRZyE}
setItems(items); )'fIrBT
setStartIndex(startIndex); 4~o\Os+8
} ?d_<S0j-)
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publicList getItems(){ q07rWPM
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return items; L`Qiu@
} 2<.}]yi
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publicvoid setItems(List items){ Crww\#E;
this.items = items; fF *a/\h %
} BA-n+WCWJ
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publicint getPageSize(){ 0K#dWc}"a
return pageSize; :;7q up
} /iukiWeW
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publicvoid setPageSize(int pageSize){ lzwr]J%|?
this.pageSize = pageSize; 9ykmz (
} sq<y2j1oF
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publicint getTotalCount(){ ;{Ovqo|
return totalCount; BF]b\/I
} DtZkrj)D/
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publicvoid setTotalCount(int totalCount){ Uel*:c
if(totalCount > 0){ W6\s@)b;
this.totalCount = totalCount; aEL6-['(
int count = totalCount / Ex<-<tY
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pageSize; fE^rTUtn
if(totalCount % pageSize > 0) Y$,]~Qzq
count++; 1miTE4;?
indexes = newint[count]; _N*4 3O`
for(int i = 0; i < count; i++){ (#
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indexes = pageSize * sS+9ly{9J
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} yWX:`*GV
}else{ ^M,Q<HL
this.totalCount = 0; g4-HUc zk
} 7v=Nh
} /yH:u r
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publicint[] getIndexes(){ .e]!i(5I
return indexes; 3S <5s}
} `FmI?:Cv
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publicvoid setIndexes(int[] indexes){ T4Zp5m")
this.indexes = indexes; yfaXScbE
} UUA7m$F1
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publicint getStartIndex(){ vU~#6sl
return startIndex; YZmD:P
} GMiWS:`;v`
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publicvoid setStartIndex(int startIndex){ ?)JW}3<.
if(totalCount <= 0) 2^Y1S?g.
this.startIndex = 0; Zcf?4{Kd?
elseif(startIndex >= totalCount) O'j;"l~H|
this.startIndex = indexes @AWKEo<7.I
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[indexes.length - 1]; ZT|E1[Q
elseif(startIndex < 0) ~+4OG 0
this.startIndex = 0; r5r K>
else{ }_Jai4O
this.startIndex = indexes {)-%u8J\`N
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[startIndex / pageSize]; LM<OYRB(
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} %n{E/06f
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publicint getNextIndex(){ 7';PI!$
int nextIndex = getStartIndex() + JLs7[W)O
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pageSize; z3>}(+
if(nextIndex >= totalCount) kgYa0 e5
return getStartIndex(); YSeXCJ:Iy
else 8)M .W
return nextIndex; ^i@t OtS
} C}W/9_I6Uo
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publicint getPreviousIndex(){ ,qaIdw [
int previousIndex = getStartIndex() - m]&d TZV
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pageSize; {?#g*QF|^
if(previousIndex < 0) .F> cZ,
return0; fr:RiOPn
else Yuh t<:`
return previousIndex; 5 {'%trDEy
} Hza{"I*^
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} Oh-HfJyi
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抽象业务类 [%z~0\lu8
java代码: P\N$TYeH
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/** 9LzQp`In
* Created on 2005-7-12 lhJT&
*/ =Tb~CT=
package com.javaeye.common.business; ?$
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