Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 q q`4<0 I>
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 FGJ1dBLr
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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 AN 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 CW K7wZM
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分页支持类: <=&`ZH
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java代码: iVr J Q
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package com.javaeye.common.util; L{\8!51L
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import java.util.List; S+6.ZZ9c
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publicclass PaginationSupport { {uFO/
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publicfinalstaticint PAGESIZE = 30; V &T~zh1
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privateint pageSize = PAGESIZE; D)P ._?
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privateList items; v/plpNVp>
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privateint totalCount; H41?/U,{
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privateint[] indexes = newint[0]; MchA{p&Ol
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privateint startIndex = 0; I
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public PaginationSupport(List items, int |-ALklXr
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totalCount){ t}4,]ms
setPageSize(PAGESIZE); Yh7t"=o
setTotalCount(totalCount); KF}hV9IU
setItems(items); C): 1?@
setStartIndex(0); = svN#q5s
} ~8+ Zs
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public PaginationSupport(List items, int +`0k Fbx
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totalCount, int startIndex){ wHLLu~m\
setPageSize(PAGESIZE); q
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setTotalCount(totalCount); (WJRi:NP?
setItems(items); Jpq~
setStartIndex(startIndex); w2c?.x
} $I>w]
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public PaginationSupport(List items, int ^76]0`gS
re<{
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totalCount, int pageSize, int startIndex){ t@;p
setPageSize(pageSize); wlvgg
setTotalCount(totalCount); Z{d^-
setItems(items); ajT*/L!0_
setStartIndex(startIndex); .P]+? %&
} @mBQ?;qlK
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publicList getItems(){ gD?l-RT>
return items; uW{l(}0N
} .<FH>NW)
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publicvoid setItems(List items){ j$:~Rek
this.items = items; uzPVTo|=
} +\A,&;!SR
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publicint getPageSize(){ _VN?#J)o
return pageSize; 3"i-o$P
} ]6`%
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publicvoid setPageSize(int pageSize){ !.gIHY
this.pageSize = pageSize; ITBE|b
}
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publicint getTotalCount(){ ?l )[7LR4
return totalCount; Avc%2+
} \\qZl)P_
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publicvoid setTotalCount(int totalCount){ )akoa,#%6c
if(totalCount > 0){ t:Q*gWRh
this.totalCount = totalCount; A/s?x>QA
int count = totalCount / %$L{R
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pageSize; +6\Zj)
if(totalCount % pageSize > 0) <'*LRd$1
count++; 0~S^Y1hH
indexes = newint[count]; *)Zdz9E'1(
for(int i = 0; i < count; i++){ ~0$&3a<n1
indexes = pageSize * FZlWsp=
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i; F41=b4/
} n>YKa)|W`
}else{ NLqzi%s
this.totalCount = 0; da(<K}
} PZ9I`P!C
} tsjrRMR
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publicint[] getIndexes(){ z:*|a+cy
return indexes; D,feF9
} ,qxu|9L
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publicvoid setIndexes(int[] indexes){ 25?6gu*Z
this.indexes = indexes; ICQKP1WFp
} .q>iXE_c
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publicint getStartIndex(){ bAMdI 5Zk?
return startIndex; +e``OeXog
} L,!?Nt\
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publicvoid setStartIndex(int startIndex){ #6=
if(totalCount <= 0) rILYI;'o
this.startIndex = 0; lf,5w
elseif(startIndex >= totalCount) ms]sD3z/W+
this.startIndex = indexes 7<R E_/]
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[indexes.length - 1]; ?@86P|19
elseif(startIndex < 0) %ET+iIhK
this.startIndex = 0; g7H(PF?
else{ Z T%5T}i
this.startIndex = indexes /N{*"s2)
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[startIndex / pageSize]; })%{AfDRF
} JZx[W&]zT
} AwR=]W;j
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publicint getNextIndex(){ o]V^};B
int nextIndex = getStartIndex() + F^:3?JA_
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pageSize; N!}f}oF
if(nextIndex >= totalCount) g_bLl)g<
return getStartIndex(); ]-#DB^EQ
else uY To9A
return nextIndex; W>r+h-kR
}
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publicint getPreviousIndex(){ 1% ` Rs
int previousIndex = getStartIndex() - ?r4>" [
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pageSize; %|oym.-I6
if(previousIndex < 0) At;LO9T3z
return0; h?U
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else i%?* @uj
return previousIndex; *;FdD{+
} }GM'.yutX
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} z1a7*)8P
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抽象业务类 Mtx 4'WZ
java代码: ~W/z96'
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/** u3D)M%e
* Created on 2005-7-12 H5an%kU|j
*/ sLk-x\P]|
package com.javaeye.common.business; \;Weizq5
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import java.io.Serializable; 6A ah9
import java.util.List; |.dRily+
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import org.hibernate.Criteria; ['D]>Ot68
import org.hibernate.HibernateException; U<XG{<2
import org.hibernate.Session; "dlVk~
import org.hibernate.criterion.DetachedCriteria; /-s6<e!
import org.hibernate.criterion.Projections; |s_GlJV.
import E qiY\/S
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org.springframework.orm.hibernate3.HibernateCallback; yhJ@(tu.Gd
import :4|4 =mkr
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org.springframework.orm.hibernate3.support.HibernateDaoS ~TtiO#,t
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upport; /9X7A;O
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import com.javaeye.common.util.PaginationSupport; b.938#3,
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public abstract class AbstractManager extends K sCyFp
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HibernateDaoSupport { L/[K"
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privateboolean cacheQueries = false; jEwIn1
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privateString queryCacheRegion; Q2>gU#
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publicvoid setCacheQueries(boolean []T8k9g/-
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cacheQueries){ 5r0YA
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this.cacheQueries = cacheQueries;
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} uAk.@nfiEv
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publicvoid setQueryCacheRegion(String $[|mGae
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queryCacheRegion){ =~gvZV-<
this.queryCacheRegion = a'T;x`b8U,
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queryCacheRegion; x1a:u
} fQFk+C
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publicvoid save(finalObject entity){ '%;m?t%q
getHibernateTemplate().save(entity); ^J{:x
} PY'2h4IL
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publicvoid persist(finalObject entity){ CJyevMf'
getHibernateTemplate().save(entity); +[ZY:ZQ
} &5;"#:ORcK
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publicvoid update(finalObject entity){ xD 7]C|8o
getHibernateTemplate().update(entity); kx CSs7J/
} $;PMkUE
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publicvoid delete(finalObject entity){ zm# ?W
getHibernateTemplate().delete(entity); iow"n$/
} Ul# r
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publicObject load(finalClass entity, D+c>F5
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finalSerializable id){ A}^mdw9
return getHibernateTemplate().load {{1G`;|v9
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(entity, id); }B^tL$k
}
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publicObject get(finalClass entity, `@%LzeGz
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finalSerializable id){ 3U}%2ARo_
return getHibernateTemplate().get ^f@=:eWI
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(entity, id); Lj7AZ|k
} ^^Vg~){4
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publicList findAll(finalClass entity){ MOC/KNb
return getHibernateTemplate().find("from eH,or ,r
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" + entity.getName()); j1Ezf=N6`
} 4z)]@:`}z
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publicList findByNamedQuery(finalString ipz5 H*
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namedQuery){ ,//S`j$S
return getHibernateTemplate 8EY:tzw
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().findByNamedQuery(namedQuery); kcEeFG;DQ
}
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publicList findByNamedQuery(finalString query, [ hsds\
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finalObject parameter){ P~dcW
return getHibernateTemplate =u;MCQ[
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().findByNamedQuery(query, parameter); !9x}
} R-Sym8c
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publicList findByNamedQuery(finalString query, 6:2vP
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finalObject[] parameters){ V8(-
return getHibernateTemplate pot~<d`:K"
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().findByNamedQuery(query, parameters); Ca\6vR
} N21smC}
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publicList find(finalString query){ %)n=x
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return getHibernateTemplate().find Ho%CDz
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(query); %)wjR/o
} \v/[6&|X0s
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publicList find(finalString query, finalObject ^}r1;W?n
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parameter){ r*Xuj=
return getHibernateTemplate().find 28nFRr
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(query, parameter); =">NQ)98u
} j!ch5A
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public PaginationSupport findPageByCriteria W>LR\]Ti@
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(final DetachedCriteria detachedCriteria){ snJ129}A
return findPageByCriteria 7o4\oRGV
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(detachedCriteria, PaginationSupport.PAGESIZE, 0); cnLro
}
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public PaginationSupport findPageByCriteria _G0x3
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(final DetachedCriteria detachedCriteria, finalint DI%saw
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startIndex){ [
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return findPageByCriteria ctUp=po
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(detachedCriteria, PaginationSupport.PAGESIZE, #Dac~>a'
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startIndex); A=4OWV?
} /j^
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public PaginationSupport findPageByCriteria 9VT;ep
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(final DetachedCriteria detachedCriteria, finalint v2?ZQeHr_(
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pageSize, S[N5 ikg
finalint startIndex){ W4N{S.#!
return(PaginationSupport) F5Va+z,jg
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getHibernateTemplate().execute(new HibernateCallback(){ b]y2+A.n
publicObject doInHibernate h\e.e3/
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(Session session)throws HibernateException { @.C2LIb
Criteria criteria = % `3jL7|
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detachedCriteria.getExecutableCriteria(session); a
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int totalCount = z:;CX@)*
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((Integer) criteria.setProjection(Projections.rowCount ZW}_DT0
8_8l.!~
()).uniqueResult()).intValue(); =Uh$&m
criteria.setProjection xA/D'
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(null); Ned."e
List items = KSvE~h[#+
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criteria.setFirstResult(startIndex).setMaxResults 6 r"<jh #
HDLk>_N_s,
(pageSize).list(); putrSSL}
PaginationSupport ps = ?EL zj
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new PaginationSupport(items, totalCount, pageSize, _LPHPj^Pg
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startIndex); (?c-iKGc
return ps; pGZ8F
} G9lUxmS<
}, true); 7"mc+QOp
} Zh,71Umz
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public List findAllByCriteria(final . ^u,.
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DetachedCriteria detachedCriteria){ Ei|\3Kx
return(List) getHibernateTemplate `g,..Ns-r
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().execute(new HibernateCallback(){ s>en
publicObject doInHibernate H. c7Nle
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(Session session)throws HibernateException { Q@niNDaW2
Criteria criteria = zTp"AuNHN
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detachedCriteria.getExecutableCriteria(session); =WLY 6)]A
return criteria.list(); g :OI
} yr6V3],Tp
}, true); "zc l|@
} nEfK53i_
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public int getCountByCriteria(final q<J~ ~'
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DetachedCriteria detachedCriteria){ JVJMgim)0
Integer count = (Integer) \lY_~*J
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getHibernateTemplate().execute(new HibernateCallback(){ C}X\|J
publicObject doInHibernate #QPjkR|\
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(Session session)throws HibernateException { 2T1q?L?]
Criteria criteria = cR{#V1Z
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detachedCriteria.getExecutableCriteria(session); v^iAD2X/F
return : +u]S2u{
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criteria.setProjection(Projections.rowCount GVz6-T~\>
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()).uniqueResult(); ?5p>BER?
} i?/qY&~
}, true); q| 7(
return count.intValue(); ==B6qX8T
} ,I9bNO,%JK
} BWNi [^]
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用户在web层构造查询条件detachedCriteria,和可选的 vIvIfE
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startIndex,调用业务bean的相应findByCriteria方法,返回一个 YQ}o?Q$z
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PaginationSupport的实例ps。 }qUX=s
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ps.getItems()得到已分页好的结果集 3'Rx=G'
ps.getIndexes()得到分页索引的数组 I'Hf{Erw
ps.getTotalCount()得到总结果数 gr{ DWCK
ps.getStartIndex()当前分页索引 z{543~Og59
ps.getNextIndex()下一页索引 ni<(K
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ps.getPreviousIndex()上一页索引 %xW"!WbJ|
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连续看了两篇robbin有关DetachedCriteria的介绍,感觉真的不错 TvM~y\s
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,尤其是上面的示例代码,让我着实觉得该对我原来的分页查询做 [Pp'Ye~K@c
k+/6$pI
一下代码重构了。 46x'I(
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我把原本我的做法也提供出来供大家讨论吧: LD?sh"?b
@iiT<
首先,为了实现分页查询,我封装了一个Page类: _aphkeqd
java代码: xk5]^yDp
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/*Created on 2005-4-14*/ T|$H#n}
package org.flyware.util.page; *a)n62
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/** TC('H[
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* @author Joa #mT"gs
* `^vE9nW7
*/ sKWfXCd
publicclass Page { Wqnc{oq|$
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/** imply if the page has previous page */ PnTu
privateboolean hasPrePage; +q4O D$}
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/** imply if the page has next page */ OI*H,Z"
privateboolean hasNextPage; wkq 66?
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/** the number of every page */ ks tIgcI
privateint everyPage; ?< />Z)
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/** the total page number */ l}
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privateint totalPage; hxx.9x>ow
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/** the number of current page */ H}!r|nG
privateint currentPage; ' QG?nu
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/** the begin index of the records by the current ?[AD=rUC
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query */ HQ g^
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privateint beginIndex; w]H->B29C
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/** The default constructor */ Q8NX)R
public Page(){ e(sk[guvX
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} }EPY^VIw
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/** construct the page by everyPage IPk4
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* @param everyPage .H|-_~Yx|
* */ ixFi{_
public Page(int everyPage){ sx%[=g+<2(
this.everyPage = everyPage; D-c4EV
} #R"*c
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/** The whole constructor */ . vV|hSc
public Page(boolean hasPrePage, boolean hasNextPage, |=w@H]r
y `UaB3q
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int everyPage, int totalPage, ^#$n~]s
int currentPage, int beginIndex){ R5D1w+
this.hasPrePage = hasPrePage; XUYtEf
this.hasNextPage = hasNextPage; pkzaNY/q
this.everyPage = everyPage; x4 yR8n(
this.totalPage = totalPage; pb}*\/s
this.currentPage = currentPage; \bcLiKE{
this.beginIndex = beginIndex; KwS@D9bok
} +nL[MSw
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/** -~1~I
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* @return TxD#9]Q`
* Returns the beginIndex. 2 nCA<&
*/ 6'/ #+,d'
publicint getBeginIndex(){ D^O@'zP=At
return beginIndex; y0#2m6u
} Y|n"dMrL
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/** DI>s-7
* @param beginIndex e=
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* The beginIndex to set. yAt^;
*/ +whDU2 "
publicvoid setBeginIndex(int beginIndex){ q1,~
this.beginIndex = beginIndex; py4 h(04u
} Xhm
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/** SU0
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* @return ! mHO$bQ"
* Returns the currentPage. CrLrw T
*/ 3S{/>1Y
publicint getCurrentPage(){ ";F'~}bDA
return currentPage; 0S"MC9beg
} ~Y;*u]^
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/** K-4PI+qQ\
* @param currentPage _b 0&!l<
* The currentPage to set. 6Oq7#3]
*/ UNYqft4
publicvoid setCurrentPage(int currentPage){ CTb%(<r
this.currentPage = currentPage; (zk"~Ud
} oU8q o-J1H
s AkdMo
/** r@V!,k#S
* @return rp$'L7lrX
* Returns the everyPage. kmW4:EA%
*/ Y4-t7UlS;
publicint getEveryPage(){ 'DR!9De
return everyPage; eFgA 8kY)
} ^[[P*NX3
ax`o>_)
/** wMn
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* @param everyPage Tk}]Gev
* The everyPage to set. j%kncGS
*/ (=0.in Z
publicvoid setEveryPage(int everyPage){ ~$'awY
this.everyPage = everyPage; ;l+Leex
} e+WNk
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}#fbbtd
/** ]M=&+c>H~
* @return 1Mzmg[L8
* Returns the hasNextPage. [JiH\+XLPs
*/ <I?Zk80
publicboolean getHasNextPage(){ -RwE%cr
return hasNextPage; fC`&g~yK'
} c{|p.hd
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/** ]^E?;1$f?
* @param hasNextPage la!~\wpa
* The hasNextPage to set. dPlV>IM$z
*/ T)/eeZ$
publicvoid setHasNextPage(boolean hasNextPage){ FPz9N@M%Q
this.hasNextPage = hasNextPage; o/E >f_k[
} ?,mmYW6TjB
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/** iS^QTuk3%
* @return uRvP hkqm
* Returns the hasPrePage. ';CNGv -
*/ 0mE 0 j
publicboolean getHasPrePage(){ Ud?Q%)X
return hasPrePage; ^qs $v06
} K-v#.e4
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/** pi(m7Ci"
* @param hasPrePage Sjqpec8
* The hasPrePage to set. ^#pEPVkY
*/ teRTu
publicvoid setHasPrePage(boolean hasPrePage){ /^ts9:
this.hasPrePage = hasPrePage; >MZ/|`[M
} r!v\"6:OM
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/** 4hB]vY\T
* @return Returns the totalPage. $Sq:q0
* wk^B"+Uhy
*/ `Di{}/2
publicint getTotalPage(){ Oketwa
return totalPage; J.a]K[ci
} x2xRBkRg=
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/** G|Ti4_w
* @param totalPage 9up3[F$
* The totalPage to set. t@(HF-4~=
*/ %{W6PrY{
publicvoid setTotalPage(int totalPage){ 1MFbQs^
this.totalPage = totalPage; -).C
} )0`C@um
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} vM={V$D&
e\rp)[>'
$xsd~L&
pglVR </
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上面的这个Page类对象只是一个完整的Page描述,接下来我写了一 c<~H(k'+c
6tZI["\
个PageUtil,负责对Page对象进行构造: zLQx%Yg!
java代码: }MySaL>
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+ {]j]OP
/*Created on 2005-4-14*/ k$Vl fQ'+
package org.flyware.util.page; ]Ljf?tk
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import org.apache.commons.logging.Log; [),ige
import org.apache.commons.logging.LogFactory; C!gZN9-
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/** Wwo0%<2y
* @author Joa e-;}366}
* !WlH'y-I
*/ WH\d| 1)
publicclass PageUtil { l/D}
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privatestaticfinal Log logger = LogFactory.getLog ib m4fa
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(PageUtil.class); hH.G#-JO
~*7]r`6\@
/** GgU/!@
* Use the origin page to create a new page g(g& TO
* @param page [g,}gyeS(
* @param totalRecords \V:^h[ad
* @return z:O8Ls^\T
*/ pg.%Pdr<$
publicstatic Page createPage(Page page, int ]e3Ax(i)
lZ0 =;I
totalRecords){ *p d@.|^)m
return createPage(page.getEveryPage(), 3`HV(5U[
gw(z1L5
n
page.getCurrentPage(), totalRecords); K3C <{#r
} <@}9Bid!o
al0L&z\
/** jIyQ]:* p
* the basic page utils not including exception Kw}'W
8` c
nN;u,}e
handler zs;JJk^
* @param everyPage }JfjX'
* @param currentPage ?2a $*(
* @param totalRecords k)u[0}
* @return page =Qq+4F)MD
*/ IV-{ve6
publicstatic Page createPage(int everyPage, int 6@f-Glwg
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currentPage, int totalRecords){ :&Nbw
everyPage = getEveryPage(everyPage); p_ =z#
currentPage = getCurrentPage(currentPage); G3]4A&h9v~
int beginIndex = getBeginIndex(everyPage, E7hhew
rNM;ZPF#
currentPage); ?%86/N>
int totalPage = getTotalPage(everyPage, w!CNRtM:~
6zkaOA46V
totalRecords); B!yr!DWv
boolean hasNextPage = hasNextPage(currentPage, 3T
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^8tEach
totalPage); `/g
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boolean hasPrePage = hasPrePage(currentPage); d-m7}2c
l:%GH
returnnew Page(hasPrePage, hasNextPage, ]_Xlq_[/r
everyPage, totalPage, Ru XC(qcq
currentPage, ?"FbsMk.d
V :eD]zq5
beginIndex); mmsPLv6
} ]4{H+rw
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privatestaticint getEveryPage(int everyPage){ u-TUuP
return everyPage == 0 ? 10 : everyPage; wzaV;ac4K
} ,Q,^3*HX9}
Q?T]MUY(L
privatestaticint getCurrentPage(int currentPage){ hph4 `{T
return currentPage == 0 ? 1 : currentPage; h![#;>(
} Jwp7gYZ
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privatestaticint getBeginIndex(int everyPage, int CARzO7b\w
(t.Nk[
currentPage){ x"(KBEK~
return(currentPage - 1) * everyPage; edV\-H5<
} +V+a4lU14
E9}C #
privatestaticint getTotalPage(int everyPage, int zQA`/&=Y
H"KCK6
totalRecords){ ;=@0'xPEa-
int totalPage = 0; -8Xf0_
+#By*;BJ
if(totalRecords % everyPage == 0) vy/-wP|1
totalPage = totalRecords / everyPage; ]9XDS[<2`
else +RXoi2"-q@
totalPage = totalRecords / everyPage + 1 ; aT<q=DO
t
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return totalPage; fh{`Mz,o
} q;U,s)Uz^
sGb{9.WK
privatestaticboolean hasPrePage(int currentPage){ 2oU_2P
return currentPage == 1 ? false : true; GL JMP^p
} V1?]|HTQcT
kLY^!
privatestaticboolean hasNextPage(int currentPage, ca}2TT&t
-+5>|N#
int totalPage){ Tr|JYLwF
return currentPage == totalPage || totalPage == FqifriLN
i?gSC<a
0 ? false : true; KgG4*<
} 8_tQa^.n\
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} ]d`VT)~vje
fatf*}eln
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sr}E+qf
上面的这两个对象与具体的业务逻辑无关,可以独立和抽象。 H1T.(M/"
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面对一个具体的业务逻辑:分页查询出User,每页10个结果。具体 CJ%I51F`X
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做法如下: x :7IIvP
1. 编写一个通用的结果存储类Result,这个类包含一个Page对象 {|\.i
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的信息,和一个结果集List: KF/-wZ"1s
java代码: ]HdCt 3X
d"NLE'R
lLD12d
/*Created on 2005-6-13*/ Ewm9\qmg
package com.adt.bo; X(C$@N
I l.K"ll
import java.util.List; &0f,~ /%Z
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import org.flyware.util.page.Page; I0a<%;JJW
kN>!2UfNS
/** vFsLY
* @author Joa ZC}QId
*/ oRzi>rr
publicclass Result { !by\9
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private Page page; L-\GHu~)
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private List content; 2
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/** g ci
* The default constructor L6LZC2N+2
*/ ]~nKK@Rw
public Result(){ :aQt;C6Z>
super(); m6djeOl
} Wm3X[?V
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/** *,m;
* The constructor using fields ?
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* r9lR|\Ax2U
* @param page A9JdU&
* @param content ]tDDq=+v
*/ ~,~eoW7
public Result(Page page, List content){ k'"%.7$U!
this.page = page; @R
6@]Dm
this.content = content; aATA9V
} "Pf~iwfw
PuO&wI]:
/** hL5|69E
* @return Returns the content. nLiY%x`S
*/ IMfqiH)
publicList getContent(){ )/EO&F
return content; 'ah[(F<*@e
} \G3rX9xG
X|8c>_}
/** 3&/Ixm:
* @return Returns the page. ${)b[22":
*/ #=v~8
public Page getPage(){ 9M9?%N:ra
return page; 7!$^r$t
} -tNUMi'
!YJs]_Wr
/** T n}s*<=V
* @param content |&[EZ+[
* The content to set. 6 _ow%Rx~F
*/ =>dGL|
public void setContent(List content){ <rmvcim{*
this.content = content; lA-h`rl/
} l0hlM#
_7)n(1h[3b
/** ->{KVPHe{
* @param page +H2-ZXr
* The page to set. 3Le{\}-$.
*/ XGMiW0j0B
publicvoid setPage(Page page){ IkXx# )
this.page = page; s!e3|pGS
} M:6"H%h,W
} I0RvnMw
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TBrPf-Xr
Fr$5RAyg
2wgg7[tGi
2. 编写业务逻辑接口,并实现它(UserManager, pU7lnS[
v<:R#
UserManagerImpl) O,A{3DAe0
java代码: ~3S~\0&|
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zkdetrR
/*Created on 2005-7-15*/ Jdp3nzM^^@
package com.adt.service; :Xd<74Nu
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N
import net.sf.hibernate.HibernateException; ~| 6[j<ziL
K}U-w:{
import org.flyware.util.page.Page; WSY}d
Vr
PAOJ\U
import com.adt.bo.Result; SC])?h-Fw
9!DQ~k%
/** H]jhAf<h
* @author Joa |id
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*/ wg]LVW}
publicinterface UserManager { @jlw_ob2g
bNoW?8bZ
public Result listUser(Page page)throws z%LIX^q9
HgkC~'
HibernateException; E`k@{*Hn&
qWKAM@
} ]P2"[y
$"&{aa
BFJnV.0M!
[R7Y}k:9U
s&!a
java代码: '-/xyAzS
-8rjgB~."/
aCLq k'
/*Created on 2005-7-15*/ mju>>\9
package com.adt.service.impl; LRMx<X8
78%~N`x7
import java.util.List; <nK?L cP
AlW66YAuQ
import net.sf.hibernate.HibernateException; Sa`Xf\
v2;`f+
import org.flyware.util.page.Page; ,T8 ~L#M~
import org.flyware.util.page.PageUtil; nmi|\mof
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y
import com.adt.bo.Result; O|N{v"o
import com.adt.dao.UserDAO; *~j@*{u
import com.adt.exception.ObjectNotFoundException; q,U+qt
import com.adt.service.UserManager; f!
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/** Yr=Y@~ XL
* @author Joa h@]XBv
*/ Bv%GJ*>>
publicclass UserManagerImpl implements UserManager { l/
;
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private UserDAO userDAO; ?r+-
{ Z5nGG
/** 'W,jMju
* @param userDAO The userDAO to set. Y<ql49-X
*/ ;x1PS
publicvoid setUserDAO(UserDAO userDAO){ ; XN{x
this.userDAO = userDAO; :7?FF'u
} qXtC^n@x
;K&o-y
/* (non-Javadoc) 5=?\1`e1[
* @see com.adt.service.UserManager#listUser o"BoZsMk
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(org.flyware.util.page.Page) )$bS}.
*/ do+.aOC
public Result listUser(Page page)throws kO*$"w#X[p
TLe~y1dwY=
HibernateException, ObjectNotFoundException { ^7KH _t8
int totalRecords = userDAO.getUserCount(); g5QZ0Qkj
if(totalRecords == 0) x&T [*i
throw new ObjectNotFoundException WoRZW%
N;j)k;
("userNotExist"); s1=G;
page = PageUtil.createPage(page, totalRecords); &<U0ZvrsH
List users = userDAO.getUserByPage(page); -FQ 'agf@&
returnnew Result(page, users); )Z ?Ym.0/
} t9:0TBt-[
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} 6s/&