Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 4gK_'b6"
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 Fv9n>%W&
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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 9$P*fx&m
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 )wz3m L
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分页支持类: Iw) 'Yyg
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java代码: f}F
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package com.javaeye.common.util; {V~Gr
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import java.util.List; _ ?Z :m
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publicclass PaginationSupport { o9uir"=
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publicfinalstaticint PAGESIZE = 30; Ndr4e?Xa,
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privateint pageSize = PAGESIZE; '; Z!(r
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privateList items; ?AJE*=b
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privateint totalCount; QAh6!<.;@
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privateint[] indexes = newint[0]; Fr ryZe=
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privateint startIndex = 0; xiG_l-2l
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public PaginationSupport(List items, int \Lu] %}
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totalCount){ x(/{]$h
setPageSize(PAGESIZE); " tUF,G(<
setTotalCount(totalCount); zwJVi9sO
setItems(items); x>=8~wIK
setStartIndex(0); gnN"pa!&~
} s4{WPU9
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public PaginationSupport(List items, int /xcl0oe(
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totalCount, int startIndex){ Qcf5*]V
setPageSize(PAGESIZE); )j>BvO
setTotalCount(totalCount); 11>K\"K}
setItems(items); *
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setStartIndex(startIndex); COf>H0^%Q
} c$HZvv
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public PaginationSupport(List items, int s5'So@L8
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totalCount, int pageSize, int startIndex){ sAz]8(Fi0
setPageSize(pageSize); @"=wn:O+
setTotalCount(totalCount); g x~fZOF_
setItems(items); 9>k-";
setStartIndex(startIndex); fer~NlX
} o7W1sD1O
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publicList getItems(){ $pg1Av7l
return items; yl[6b1
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publicvoid setItems(List items){ _7LZ\V+MLW
this.items = items; 1Xi.OGl
} zn@yt%PCV
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publicint getPageSize(){ JxM[LvVi
return pageSize; cc^ [u+
} y=)xo7(
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publicvoid setPageSize(int pageSize){ b];p/V#
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this.pageSize = pageSize; $M=W`E[g
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publicint getTotalCount(){ CUR70[pB)
return totalCount; {b6$F[e
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publicvoid setTotalCount(int totalCount){ Tn7(A^h'
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this.totalCount = totalCount; 8#MiM . f
int count = totalCount / ]wQ#8}zO
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pageSize; Z`)}1|~B
if(totalCount % pageSize > 0) M[@=m[#a
count++; AGdFJ>/
indexes = newint[count]; ,y57tY
for(int i = 0; i < count; i++){ jw"]U jub
indexes = pageSize * 3 O)^Hq+9
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this.totalCount = 0; CI )89`
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} DJmT]Q]o)
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publicint[] getIndexes(){ e5 ?;{H
return indexes; TEK]$%2
} eaxp(VX?oy
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publicvoid setIndexes(int[] indexes){ Iw<:
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publicint getStartIndex(){ };:+0k/
return startIndex; MZ{gU>K+
} _8U
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publicvoid setStartIndex(int startIndex){ z[I3k
if(totalCount <= 0) `;9Z?]}`
this.startIndex = 0; 1 %nE
elseif(startIndex >= totalCount) FesXY856E
this.startIndex = indexes [Ie;Jd>gG
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[indexes.length - 1]; DhAQ|SdCf
elseif(startIndex < 0) K; +w'/{
this.startIndex = 0; 6jKZ.S+s)
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this.startIndex = indexes ,y+}0q-Ou
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[startIndex / pageSize]; /Y>$w$S
} !4(X9}a
} U;7Cmti"
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publicint getNextIndex(){ XRMYR97
int nextIndex = getStartIndex() + FKOTv2
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pageSize; SGd[cA
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if(nextIndex >= totalCount) _^ 2rRz
return getStartIndex(); hw@ `Q@
else e7(iMe
return nextIndex; OUd&fUmH
} QD6in>+B@
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publicint getPreviousIndex(){ ky`xBO=
int previousIndex = getStartIndex() - DaV:Slp9
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pageSize; NEpomE(>x
if(previousIndex < 0) ]}wo$7pO
return0; q;^Q1[Ari
else P,|%7'? Y
return previousIndex; ]>33sb
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} JfJLJ(}
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} atW=xn
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抽象业务类 UC!?.
java代码: <]~FX25
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