Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 TbM*?\7
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 |L-juT X9
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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 l zknB
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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 A^7Zy79
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分页支持类: aV#;o9H{
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java代码: hpKc_|un
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package com.javaeye.common.util; iJ#oI@s
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import java.util.List;
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publicclass PaginationSupport { #Ih(2T
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publicfinalstaticint PAGESIZE = 30; TyXOd,%zl
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privateint pageSize = PAGESIZE; 0tyU%z{RV
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privateList items; LM`#S/h
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privateint totalCount; f}d@G/L
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privateint[] indexes = newint[0]; o?8j*]
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privateint startIndex = 0; v65r@)\`
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public PaginationSupport(List items, int OPh@H.)^
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totalCount){ : P2;9+v
setPageSize(PAGESIZE); ~qxc!k!w4
setTotalCount(totalCount); 2M`Ni&v
setItems(items); t')I c6.?i
setStartIndex(0); Stx-(Kfn4
} .6(i5K
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public PaginationSupport(List items, int #r}c<?>Vw
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totalCount, int startIndex){ }RK9Onh3G
setPageSize(PAGESIZE); RH'R6
setTotalCount(totalCount); >r Glj
setItems(items); SjU6+|l
setStartIndex(startIndex); G_o4A:2
} `;hBO#(H0}
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public PaginationSupport(List items, int 3N\X{za
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totalCount, int pageSize, int startIndex){ rbWFq|(_
setPageSize(pageSize); !qq@F%tv
setTotalCount(totalCount); H[oi? {L
setItems(items); ?RyvM_(N6
setStartIndex(startIndex); yV`vu/3K
} /iy/2x28>
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publicList getItems(){ ]sE^=;Pv?
return items; g9.hR8X
} AS
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publicvoid setItems(List items){ nV1,
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this.items = items; T[J_/DE@
} %J'_c|EQM
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publicint getPageSize(){ -z94>}Z=
return pageSize; =="SW"vNi
} uEY5&wX`
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publicvoid setPageSize(int pageSize){ (~4AG \
this.pageSize = pageSize; ]5CFL$_Q{
} ~*WbMA
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publicint getTotalCount(){ .d,Zx
return totalCount; To95WG7G
} 2Ev,dWV
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publicvoid setTotalCount(int totalCount){ xDS9gGr
if(totalCount > 0){ &v88xs
this.totalCount = totalCount; b1"wQM9
int count = totalCount / 0&@6NW&Mu
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pageSize; vF1$$7k
if(totalCount % pageSize > 0) ,$>Z= ~x*
count++; U/X ^
indexes = newint[count]; 9EW 7,m{A
for(int i = 0; i < count; i++){ L M[<?`%p
indexes = pageSize * VB%xV
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} x(Z@R\C-a
}else{
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this.totalCount = 0; BDg /pDnwg
} jTJ[2WaS
} }I0^nv1
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publicint[] getIndexes(){ )sr]}S0
return indexes; t<=L&:<N
} |m%&Qb
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publicvoid setIndexes(int[] indexes){ '_%Jw:4k
this.indexes = indexes; PC5FfX
} P:o<kRj1
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publicint getStartIndex(){ *Bj G3Jc5
return startIndex; t&0p@xLQ
} _e
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publicvoid setStartIndex(int startIndex){ )_ y{^kn3^
if(totalCount <= 0) spf}{o
this.startIndex = 0; ))Nc|`
elseif(startIndex >= totalCount) {>qCZ#E5WO
this.startIndex = indexes pJIH_H
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[indexes.length - 1]; TFhj]r^{
elseif(startIndex < 0) b({2|R
this.startIndex = 0; ?{n#j,v!
else{ @UA>6F
this.startIndex = indexes BBDOjhik
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[startIndex / pageSize];
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} W$&Q.Z
} s}.nh>Q
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publicint getNextIndex(){ W{`;][
int nextIndex = getStartIndex() + >2rFURcD
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pageSize; v-kH7H"z
if(nextIndex >= totalCount) X!@Gv:TD
return getStartIndex(); # a3Q<%V
else O;XF'r_
return nextIndex; F'K{=
} a'|0e]
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publicint getPreviousIndex(){ 6 3HxQH
int previousIndex = getStartIndex() - @U&|38
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pageSize; dO=<3W
if(previousIndex < 0) sU8D;ML7
return0; Y3thW@mD05
else A4#m&o