Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 j9/-"dTL
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 B,(Heg
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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 n!E2_
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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 **[Z^$)u(
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分页支持类: ^-M^gYBR
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java代码: m2Uc>S
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package com.javaeye.common.util; +/+P\O
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import java.util.List; da$BUAqU
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publicclass PaginationSupport { +tN&a
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publicfinalstaticint PAGESIZE = 30; ?oiKVL"7
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privateint pageSize = PAGESIZE; ~H}en6Rc
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privateList items; 0X(]7b&~R
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privateint totalCount; qYp$fmj
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privateint[] indexes = newint[0]; 8 )\M:s~7&
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privateint startIndex = 0; ,goBq3[%?
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public PaginationSupport(List items, int C+MSVc
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totalCount){ /MOnNnV
setPageSize(PAGESIZE); !1uzX
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setTotalCount(totalCount); [[)_BmS5r
setItems(items); 3|Y!2b(:?
setStartIndex(0); ~tGCLf]c\
} C6&( c
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public PaginationSupport(List items, int kYxS~Kd<
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totalCount, int startIndex){ G(1 K9{i$
setPageSize(PAGESIZE); .%0ne:5
setTotalCount(totalCount); Z]:BYX'
setItems(items); u&TdWZe
setStartIndex(startIndex); " B@jfa%
} pyW u9
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public PaginationSupport(List items, int }1%r%TikY
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totalCount, int pageSize, int startIndex){ cQFR]i
setPageSize(pageSize); twk&-:'
setTotalCount(totalCount); fV ZW[9[
setItems(items); |Zq\GA
setStartIndex(startIndex); xNN@ 1P[*
} M>_ = "atI
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publicList getItems(){ +EAS Aq
return items; 8kW /DcLE
} ".2A9]_s
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publicvoid setItems(List items){ -'C!"\%
this.items = items; s=EiH
} ;>2#@QP
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publicint getPageSize(){ ?G/ hJ?3
return pageSize; iG[?
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} Ds5NAp:x
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publicvoid setPageSize(int pageSize){ 9[|4[3K
this.pageSize = pageSize; r7)@M%A
} @%@zH%b
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publicint getTotalCount(){ ,{j4
return totalCount; +*t|yKO>[
} .T3=Eq&"W
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publicvoid setTotalCount(int totalCount){ =2oUZjA
if(totalCount > 0){ D&[Z;,CHMA
this.totalCount = totalCount; FpkXOj?*
int count = totalCount / U7%28#@
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pageSize; M g!ra"
if(totalCount % pageSize > 0) Y5jYmP<
count++; If}lJ6jZ
indexes = newint[count]; V8'`nuC+
for(int i = 0; i < count; i++){ U4wpjHg
indexes = pageSize * i;lE5
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} lvufk VG|
}else{ XN;/nU
this.totalCount = 0; 6D9o08
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publicint[] getIndexes(){ ,z66bnjO
return indexes; (G5xkygR9
} m,NMTyJoz
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publicvoid setIndexes(int[] indexes){ `45d"B
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this.indexes = indexes; [$2qna2VP
} t&"5dM\
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publicint getStartIndex(){ <PD|_nZT
return startIndex; HtzMDGV<
} qWB%),`j>
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publicvoid setStartIndex(int startIndex){ Jn,w)Els
if(totalCount <= 0) ~.Q4c*_b
this.startIndex = 0; h3h8lt_|
elseif(startIndex >= totalCount) l @A"U)A(
this.startIndex = indexes nO@+s
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[indexes.length - 1]; ALR:MAXwC
elseif(startIndex < 0) .! j#3J..u
this.startIndex = 0; j_pw^I$C
else{ &HxT41pku
this.startIndex = indexes WLy7'3@
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[startIndex / pageSize]; X RRJ)}P
} K.h]JD]o
} Fd"WlBYy0
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publicint getNextIndex(){ J3\)Jy
int nextIndex = getStartIndex() + GI4oQcJ
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pageSize; &enlAV'#)O
if(nextIndex >= totalCount) <NL+9l R
return getStartIndex(); *eoq=,O
else mCrU//G
return nextIndex; -4`sqv ]
} Nz @8
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publicint getPreviousIndex(){ y7;
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int previousIndex = getStartIndex() - Heohe|an
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pageSize; XbXgU#%
if(previousIndex < 0) *cy.*@d
return0; `7>K1slQ}S
else ws().IZ
return previousIndex; eU"mG3__
} w}b<D#0XC
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} [+7"{UvT
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抽象业务类 rUvwpP"k
java代码: sx90lsu
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/** bN4d:0 Y
* Created on 2005-7-12 T/5nu?v
*/ ,@,LD u
package com.javaeye.common.business; /W``LK>;?
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import java.io.Serializable; 4Q/r[x/&C
import java.util.List; 8ipW3~-4
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import org.hibernate.Criteria; 0c-QIr}m
import org.hibernate.HibernateException; 2:n|x5\H
import org.hibernate.Session; g)nXo:)&