Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 s
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 F_o5(`>^
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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 P08=?
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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 pe>R2<!$
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分页支持类: 5o 4\Jwt
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java代码: NGIbUH1[
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package com.javaeye.common.util; B#Cb`b"
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import java.util.List; p]/HZS.-b
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publicclass PaginationSupport { LeDty_
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publicfinalstaticint PAGESIZE = 30; ]zEatY
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privateint pageSize = PAGESIZE; XdX1GH*C
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privateList items; 0|kkwZVPn
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privateint totalCount; =e2|:Ba!
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privateint[] indexes = newint[0]; @j*K|+X"
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privateint startIndex = 0; R57>z`;
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public PaginationSupport(List items, int |
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totalCount){ U5N/'p%)<
setPageSize(PAGESIZE); e&WlJ
setTotalCount(totalCount); ]v&)mK]n=o
setItems(items); w&yK*nBK
setStartIndex(0); c5x2FM z
} #=mLQSiQ
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public PaginationSupport(List items, int P_S^)Yo
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totalCount, int startIndex){ t*Hr(|.
setPageSize(PAGESIZE); FCL7Tn
setTotalCount(totalCount); $+CKy>
setItems(items); hTZ&
setStartIndex(startIndex); Lc.=CBQ
} 7kX;|NA1
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public PaginationSupport(List items, int XpWcf ([
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totalCount, int pageSize, int startIndex){ w<=?%+n
setPageSize(pageSize); t5:
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setTotalCount(totalCount); L?_'OwaY
setItems(items); z,pKyInw
setStartIndex(startIndex); a6\0XVU
} N 4Kj)E@
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publicList getItems(){ m'{gO9V
return items; jeb]3i=pw
} e
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publicvoid setItems(List items){ X{cFqW7
this.items = items; D6X0(pU0
} D%[yAr;r
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publicint getPageSize(){ ^n Gj 7b
return pageSize; Hw"LoVh
} <'WS -P%U
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publicvoid setPageSize(int pageSize){ Nfv.v1Tt+
this.pageSize = pageSize; @">^2
} ?'>pfU
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publicint getTotalCount(){ N_jpCCG~
return totalCount; d$DNiJ ,
} jQ>~
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publicvoid setTotalCount(int totalCount){ l9Xz,H
if(totalCount > 0){ MTI[Mez
this.totalCount = totalCount; }eKY%WU>O
int count = totalCount / TS2zzYE6Z
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pageSize; `Hlv*" w$
if(totalCount % pageSize > 0) ZC7ZlL_
count++; $2!|e,x
indexes = newint[count]; ;t6)(d4z?
for(int i = 0; i < count; i++){ }EJAC*W,
indexes = pageSize * s=KK)6T
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} 8d|/^U.w~V
}else{ DIAHIV<
this.totalCount = 0;
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} su2|x
} {&u`d.Lk2p
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publicint[] getIndexes(){ 79HKfG2+KB
return indexes; \S5YS2,P
} 9Rf})$o+
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publicvoid setIndexes(int[] indexes){ \US'tF)/
this.indexes = indexes; 62s0$vw
} ~)fd+~4L
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publicint getStartIndex(){ ,F;<Y9]
return startIndex; Fu%D2%V$/
} i!yu%>:M
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publicvoid setStartIndex(int startIndex){ Nbyc,a[o
if(totalCount <= 0) xZ=6
this.startIndex = 0; 0,{tBo
elseif(startIndex >= totalCount) "pA24Ze
this.startIndex = indexes yb/v?q?Fk
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[indexes.length - 1]; %f-Uwq&}Y"
elseif(startIndex < 0) {zNFp#z
this.startIndex = 0; z5tOsU
else{ (Ts#^qC
this.startIndex = indexes zn+5pn&?
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[startIndex / pageSize]; ;o#wK>pk%M
} .&Ik(792Z&
} B5R/GV
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publicint getNextIndex(){ ,qUOPW?=
int nextIndex = getStartIndex() + |g`:K0BI
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pageSize; 'uBagd>*
if(nextIndex >= totalCount) W{!Slf
return getStartIndex(); gH
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else 8+|7*Ud
return nextIndex; <&CzM"\Em
} &sA@!
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publicint getPreviousIndex(){ Kk9eJ\
int previousIndex = getStartIndex() - PrQs_tNi
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pageSize; ?S2!'L
if(previousIndex < 0) M/x*d4b_
return0; QnMN8Q9
else ^MczumG[
return previousIndex; 2EAY`}Rl6.
} K0 6 E:
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} z~0f[As.
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