Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 "X"DTP1b
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 sR'rY[^/|
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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 ]-["sw
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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 lbTz
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分页支持类: ]D%D:>9|/
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java代码: u!X[xe;
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package com.javaeye.common.util; N2xgyKy~
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import java.util.List; My
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publicclass PaginationSupport { ;]+kC
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publicfinalstaticint PAGESIZE = 30; 2}'&38wMT
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privateint pageSize = PAGESIZE; LKftNSkg"
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privateList items; \d%&_rp
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privateint totalCount; $Ob]JAf}
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privateint[] indexes = newint[0]; {Km|SG[-q
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privateint startIndex = 0; J4xt!RW!
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public PaginationSupport(List items, int "kVN|Do
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totalCount){ jpT!di
setPageSize(PAGESIZE); [t,grdw
setTotalCount(totalCount); A&)P_B1|
setItems(items); W)$;T%u
setStartIndex(0); o7&Z4(V
} !5Z?D8dcx
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public PaginationSupport(List items, int v #IC
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totalCount, int startIndex){ WcbJ4Ore
setPageSize(PAGESIZE); BqKD+
setTotalCount(totalCount); bP(V#6IJ8
setItems(items); c{s<W}3Ds
setStartIndex(startIndex); `p*7MZ9-
} mWta B>f
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public PaginationSupport(List items, int DV]Kd
7
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totalCount, int pageSize, int startIndex){ M\>y&'J-
setPageSize(pageSize); W;Ox H"eC
setTotalCount(totalCount); ~)Ny8Dh
setItems(items); OCY7Bls4
setStartIndex(startIndex); XZJ }nXy
} /$]dVvhX%
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publicList getItems(){ /QD}_lh;,
return items; nU||Jg
} VOp8 ,!
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publicvoid setItems(List items){ !A&Vg #
this.items = items; >2Z:=HT
} pJK puoiX
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publicint getPageSize(){ 0ot=BlMu
return pageSize; {;=+#QK/
} nLJ]tpw^DH
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publicvoid setPageSize(int pageSize){ t.485L%
this.pageSize = pageSize; @_h/%>0
} nYTI\f/8v
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publicint getTotalCount(){ H2p1gb#
return totalCount; %~ZOQ%c1
} S'B7C>i`#N
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publicvoid setTotalCount(int totalCount){ wa@X^]D8
if(totalCount > 0){ `61VP-r
this.totalCount = totalCount; M@
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int count = totalCount / (*^_wq-;
/ QSK$ZDC
pageSize; 3[-L'!pOX3
if(totalCount % pageSize > 0) ?v8B;="#w
count++; VL7zU->
indexes = newint[count]; OfbM]:}<3
for(int i = 0; i < count; i++){ u
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indexes = pageSize * f*bs{H'5
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i; `+k&]z$m
} \CX`PZ><
}else{ adHHnH`,
this.totalCount = 0; _+.z2} M
} &z&Jl#t-)
} f)?s.DvUB
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publicint[] getIndexes(){ J:M^oA'N:>
return indexes; (B7M*e
} `SFI\Y+WDT
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publicvoid setIndexes(int[] indexes){ *"q ~z
this.indexes = indexes; "a>%tsl$K
} QR\qGhQ~
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publicint getStartIndex(){ Go+f0aig
return startIndex; enDjP
} | t3_E
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publicvoid setStartIndex(int startIndex){ ;,'eO i
if(totalCount <= 0) $l 0^2o=
this.startIndex = 0; [1G4he%
elseif(startIndex >= totalCount) \b{=&B[Q$'
this.startIndex = indexes Pdrz lu
\; $j
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[indexes.length - 1]; !!DHfAV]
elseif(startIndex < 0) Ko kmylHu
this.startIndex = 0; ,^`+mP
else{ =cX&H
this.startIndex = indexes oju4.1
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[startIndex / pageSize]; 7:9WiN5b
} ZMy,<wk
} 7o'kdYJzo
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publicint getNextIndex(){ FgKDk!ci
int nextIndex = getStartIndex() + p/4GOU5g
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pageSize;
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if(nextIndex >= totalCount) xpRQ"6
return getStartIndex(); FJ}/g
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else x_s9DkX
return nextIndex; [;83
IoU}
} `>g:
:
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publicint getPreviousIndex(){ ~eA7:dZLb
int previousIndex = getStartIndex() - A@f`g[q
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pageSize; jaFBz&P/#
if(previousIndex < 0) NcwZ_*sqj
return0; W7_X=>l
else #L`@["
return previousIndex; A)/_:
}
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} m!tB;:6
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抽象业务类 CM!bD\5
java代码:
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/** L:}hZf{p*
* Created on 2005-7-12 (w6 024~
*/ gcQ>:mi
package com.javaeye.common.business; 6L}$R`s5H
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import java.io.Serializable; VNp[J'a>VZ
import java.util.List; DrC4oxS 1
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import org.hibernate.Criteria; Kn?>XXAc
import org.hibernate.HibernateException; oDrfzm|[Y
import org.hibernate.Session; !w(J]<
import org.hibernate.criterion.DetachedCriteria; gC>
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import org.hibernate.criterion.Projections; Cz#0Gh>1
import xKv\z1ra
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org.springframework.orm.hibernate3.HibernateCallback; ;vy" i
import f)Z$,&
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org.springframework.orm.hibernate3.support.HibernateDaoS 6`J*{%mP
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upport; pi7W8y
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import com.javaeye.common.util.PaginationSupport; Uz} #.
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public abstract class AbstractManager extends AD_")_B|i
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HibernateDaoSupport { .!/DM-C
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privateboolean cacheQueries = false; ;%0$3a
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privateString queryCacheRegion; +? E~F
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publicvoid setCacheQueries(boolean *%=BcV+,
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cacheQueries){ <v>^#/.0
this.cacheQueries = cacheQueries; LPc)-t|p"
} @!"w.@Y
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publicvoid setQueryCacheRegion(String iqreIMWz
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queryCacheRegion){ SIYBMe
this.queryCacheRegion = TWZ**S-
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queryCacheRegion; %@k@tD6
} PzMJ^H{
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publicvoid save(finalObject entity){ /Nt#|C>
getHibernateTemplate().save(entity); 4>-'w MW")
} Vzn0;
@tGju\E"o
publicvoid persist(finalObject entity){ 7jL+c~
getHibernateTemplate().save(entity); ePv3M&\J
} WXV (R,*Tc
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publicvoid update(finalObject entity){ q^; SZ^yW5
getHibernateTemplate().update(entity); )CJXkzOX
} ]V0V8fU|
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publicvoid delete(finalObject entity){ dWqKt0uh!
getHibernateTemplate().delete(entity); `<2k.aW4e8
} Q3[MzIk 4
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publicObject load(finalClass entity, )S@e&a|
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finalSerializable id){ |;sL*Vr
return getHibernateTemplate().load f>!)y- 7
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(entity, id); <:/Lap#D^
} &W+lwEu
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publicObject get(finalClass entity, o&0fvCpW
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finalSerializable id){ 6B`XHdCq
return getHibernateTemplate().get MdXOH$ps
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(entity, id); =1sGT;>
} DcYL8u
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publicList findAll(finalClass entity){ `yF6-F
return getHibernateTemplate().find("from .j^tFvN~L
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" + entity.getName()); (+uM |a
} PkX4 !
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publicList findByNamedQuery(finalString 0,~||H{
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namedQuery){ +q n[F70}
return getHibernateTemplate Cm@rXA/
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().findByNamedQuery(namedQuery); nVB.sab
} #O 2g]YH
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publicList findByNamedQuery(finalString query, y_mTO4\C2
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finalObject parameter){ ncTPFv
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return getHibernateTemplate wN
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().findByNamedQuery(query, parameter); wnUuoX(
} ,5V w^@F
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publicList findByNamedQuery(finalString query, Ey|{yUmU+
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finalObject[] parameters){ CWT#1L=
return getHibernateTemplate ]2E#P.-!b
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().findByNamedQuery(query, parameters); GmhfBW?
} P* X^)R
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publicList find(finalString query){ B7x(<!B
return getHibernateTemplate().find 5PY4PT=G
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(query); 'Em3;`/C*+
} [=<vapZt
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publicList find(finalString query, finalObject M(
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parameter){ )[b\wrc
return getHibernateTemplate().find 68*a'0
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(query, parameter); A@uU*]TqJ8
} f/7on|bv
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public PaginationSupport findPageByCriteria qu\cU(H|
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(final DetachedCriteria detachedCriteria){ 1X5MknA
return findPageByCriteria =kzuU1s
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(detachedCriteria, PaginationSupport.PAGESIZE, 0); >\br8=R
} -7Bg5{FA
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public PaginationSupport findPageByCriteria #| pn,/
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(final DetachedCriteria detachedCriteria, finalint
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A"tE~m;"7
startIndex){ o5B]? ekpq
return findPageByCriteria 6Y`rQ/F
7Pe<0K)s(
(detachedCriteria, PaginationSupport.PAGESIZE, !zVjbYWY
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startIndex); ;!S i_b2
} @.&KRAZ
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public PaginationSupport findPageByCriteria ;
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(final DetachedCriteria detachedCriteria, finalint Sw.k,p*r
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pageSize, ^jbjHI&
finalint startIndex){ #<K'RJn
return(PaginationSupport) LpK? C<?x
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getHibernateTemplate().execute(new HibernateCallback(){ VTUSM{TC
publicObject doInHibernate uc{s\_
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(Session session)throws HibernateException { 3/N~`!zeX
Criteria criteria = IM$ d~C
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detachedCriteria.getExecutableCriteria(session); CJjT-(a
int totalCount = cYgd1
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((Integer) criteria.setProjection(Projections.rowCount vA"LV+@
`@xnpA]l
()).uniqueResult()).intValue(); ?o1QjDG
criteria.setProjection B&QEt[=s
82)%`$yZw[
(null); i>7]9gBm1q
List items = DH7]TRCMZ)
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criteria.setFirstResult(startIndex).setMaxResults G#Kw6
8d?%9# p-)
(pageSize).list(); m\oxS;fxWi
PaginationSupport ps = XRmE
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new PaginationSupport(items, totalCount, pageSize, 0.S7uH%"
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startIndex); /PVx
return ps; N\"Hf=Y(~
} EQe$~}[
}, true); ZkWMo=vL
} )<%CI#s#
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public List findAllByCriteria(final n&!q9CR`
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DetachedCriteria detachedCriteria){ N1}r%!jk/
return(List) getHibernateTemplate JXjH}C
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().execute(new HibernateCallback(){ U;A,W$<9
publicObject doInHibernate O=eU38n:5u
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(Session session)throws HibernateException { ^M1jv(
Criteria criteria = Uw]o9 e0S
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detachedCriteria.getExecutableCriteria(session); 7~r_nP_
return criteria.list(); <Mndr8 H
} SKF0p))BJ
}, true); 'C=(?H)M
} L=<$^ m
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public int getCountByCriteria(final d;,Jf*x\
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DetachedCriteria detachedCriteria){ g[' 7 $
Integer count = (Integer) La28%10
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getHibernateTemplate().execute(new HibernateCallback(){ \T[OF8yhW
publicObject doInHibernate O6vHo3k
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(Session session)throws HibernateException { )gz]F_
Criteria criteria = _R^ZXtypd
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detachedCriteria.getExecutableCriteria(session); '9'f\
return G5|'uKz2"
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criteria.setProjection(Projections.rowCount b'C#]DorE
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()).uniqueResult(); V*r/0|vd
} }+}Cl T
}, true); Ga+Cb2$
return count.intValue(); sOVpDtZ]LR
} @#*{*
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} i1X!G|Awfv
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用户在web层构造查询条件detachedCriteria,和可选的 "!&
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startIndex,调用业务bean的相应findByCriteria方法,返回一个 h+7U'+|%A
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PaginationSupport的实例ps。 G0kF[8Am
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ps.getItems()得到已分页好的结果集 _>)@6srC
ps.getIndexes()得到分页索引的数组 PT~F^8,)
ps.getTotalCount()得到总结果数 ++UxzUd
ps.getStartIndex()当前分页索引 FRL;fF
ps.getNextIndex()下一页索引 txm6[Io
ps.getPreviousIndex()上一页索引 'f0R/6h\3s
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连续看了两篇robbin有关DetachedCriteria的介绍,感觉真的不错 dNCd-ep
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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 K47.zu
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一下代码重构了。 \ KsKb0sM
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我把原本我的做法也提供出来供大家讨论吧: l: kW|
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首先,为了实现分页查询,我封装了一个Page类: w11L@t[5W8
java代码: CKSs(-hkJ
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/*Created on 2005-4-14*/ dQFUQ
package org.flyware.util.page; Pf;RJeD
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/** )iVuac]E++
* @author Joa TwF.UL@G%
* [,;O$j}
*/ ONZ(0H{ 1$
publicclass Page { ~]Av$S
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/** imply if the page has previous page */ QxuU3#l
privateboolean hasPrePage; \F\xZ.r
Gm> =s
/** imply if the page has next page */ I~E&::,
privateboolean hasNextPage; |Om9(xT
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/** the number of every page */ rWqr-"0S.
privateint everyPage; Z#l6BXK
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/** the total page number */ (LMT '
privateint totalPage; 4N1)+W8k*
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/** the number of current page */ a[,p1}!_
privateint currentPage; l)~$/#k
h#dfhcU>
/** the begin index of the records by the current 5Vdy:l
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query */ O2f-{jnTz,
privateint beginIndex; }jP/XO1f
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/** The default constructor */ &os:h]
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public Page(){ 5|`./+Ghk
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} 2|(lKFkQ
+bR|;b(v
/** construct the page by everyPage 1. <g C
* @param everyPage F7/%,vf
* */ uJ fXe
public Page(int everyPage){ A;6ew4
this.everyPage = everyPage; ) 3V1aC
} XeslOsHh
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/** The whole constructor */ l>hvWK[ ?I
public Page(boolean hasPrePage, boolean hasNextPage, '#oH1$W]
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" YOl6n
int everyPage, int totalPage, H(O|y2
int currentPage, int beginIndex){ 0QW;=@)d
this.hasPrePage = hasPrePage; ($8!r|g5#
this.hasNextPage = hasNextPage; 4Me3{!HJ z
this.everyPage = everyPage; rJB/)4
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this.totalPage = totalPage; q0['!G%["
this.currentPage = currentPage; PsS.lhj0"
this.beginIndex = beginIndex; -a"b:Q
} I47sq z7
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/** 5{IbKj|
* @return RSw;b.t7
* Returns the beginIndex. 7osHKO<?2
*/ K( ?p]wh
publicint getBeginIndex(){ kbbHa_;aqV
return beginIndex; rt?*eC1b+Z
} aZ|S$-}
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/** bweAmSs
* @param beginIndex SLH;iqPT
* The beginIndex to set. 83aWMmA(1
*/ CHjm7
publicvoid setBeginIndex(int beginIndex){ P?jI:'u!R.
this.beginIndex = beginIndex; NF-@Q@
} QF22_D<.}J
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7
/** ^X"x,8}&V
* @return A!uiM*"W
* Returns the currentPage. Jp_ :.4
*/ r
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publicint getCurrentPage(){ tWQ$`<h
return currentPage; Qw"%Xk
} (.wR!l#!
\NKw,`/
/** _?K,Jc8j.
* @param currentPage d69dC*>
* The currentPage to set. M6V^ur 1
*/ Kw:%B|B<T
publicvoid setCurrentPage(int currentPage){ /1bQ
RI^\
this.currentPage = currentPage; 5Q8s{WQ
} C}pQFL{B5
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/** ~LP5hL
* @return %F}d'TPx
* Returns the everyPage. *_HF %JYMZ
*/ # $'H?lO
publicint getEveryPage(){ QBfo=9[=e
return everyPage; /#q6.du
} FJ{&R Ld
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/** X+N8r^&
* @param everyPage k@gQY _
* The everyPage to set. LW9F%?e!>
*/ S/l6c P
publicvoid setEveryPage(int everyPage){ #>sIXY
this.everyPage = everyPage; u%=2g'+)_
} 8_O?#JYi
HXPq+
/** R+=wSG ]
* @return YTr+"\CkA
* Returns the hasNextPage. am7~
*/ yb0Mn*X+
N
publicboolean getHasNextPage(){ P{: 5i%qC
return hasNextPage; k%aJ%(
} SO<9?uk.
hrXk 7}9
/** o]GZq..
* @param hasNextPage I\Cg-&e
* The hasNextPage to set. j6L (U~%
*/ O.8k [Ht
publicvoid setHasNextPage(boolean hasNextPage){ 1?Tj
this.hasNextPage = hasNextPage; 8]bLp
} h2i1w^f
#)iPvV'
/** jw0wR\1
* @return sk3AwG;A
* Returns the hasPrePage. Pa$"c?QUy
*/ ::-*~CH)
publicboolean getHasPrePage(){ fP$rOJ)P
return hasPrePage; "g!ek3w(
} }'n]C| gZ
2R;#XmKS
/** x,fL656t
* @param hasPrePage }_7
* The hasPrePage to set. 0\!v{A>
I'
*/ QiJ
publicvoid setHasPrePage(boolean hasPrePage){ lnF{5zc
this.hasPrePage = hasPrePage; LyL(~Jc|
} ktp<o.f[
E@AV?@<sc
/** J=HN~B1
* @return Returns the totalPage. 0F
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* >&^jKfY
*/ @3S:W2k
publicint getTotalPage(){ SzfMQ@~
return totalPage; _sY;
dS/
} &)_
z!
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/** .nEiYS|T
* @param totalPage k)W&ZY
* The totalPage to set. Q8.LlE999
*/ kdhwnO
publicvoid setTotalPage(int totalPage){ |t~>Xs
this.totalPage = totalPage; U\-R'Z>M
} gP |>gy#e
_6g(C_m'T?
} s=556
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iJCv+p_f
jvo^I$|2h
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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 s#(%u t
o7eWL/1
个PageUtil,负责对Page对象进行构造: D'BGoVP
java代码: ^MG"n7)X
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/*Created on 2005-4-14*/ su3Wk,MLP
package org.flyware.util.page; k+Z2)j"
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import org.apache.commons.logging.Log; 3e1P!^'\
import org.apache.commons.logging.LogFactory; w"?RbA
LC\U6J't1
/** Z9Z\2t
* @author Joa MIb[}w=
* <d >!%
*/ i4XiwjCHN
publicclass PageUtil { {faIyKtW
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privatestaticfinal Log logger = LogFactory.getLog )ybF@emc
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(PageUtil.class); iq,rS"
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/** 15r=d
* Use the origin page to create a new page {w7/M]m-
* @param page ExeZj8U
* @param totalRecords E=`/}2
* @return c5:X$k\
*/ Z[eWey_
publicstatic Page createPage(Page page, int 2(m#WK7>F
|"+Ufw^
totalRecords){ `3@?)xa
return createPage(page.getEveryPage(), l,zhBnD
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page.getCurrentPage(), totalRecords); <1
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} e+MQmWA'F
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/** g(,^';j
* the basic page utils not including exception n|KYcU#
U.JE \/
handler i83[':
* @param everyPage Q|e-)FS)
* @param currentPage 0N$FIw2
* @param totalRecords %$i}[U
* @return page W+$G{XSr5C
*/ =%c\<<]aV
publicstatic Page createPage(int everyPage, int \Pcn D$L
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currentPage, int totalRecords){ o?6m/Klw6
everyPage = getEveryPage(everyPage); `*U$pg
currentPage = getCurrentPage(currentPage); <Y2$'ETD
int beginIndex = getBeginIndex(everyPage, 4u"Bll
D2=zrU3Y64
currentPage); b};o:
int totalPage = getTotalPage(everyPage, Rd|8=`)
OHrzN']
totalRecords); AWKJ@&pA9m
boolean hasNextPage = hasNextPage(currentPage, > >KCd
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~}
totalPage); a6 1!j>Kx
boolean hasPrePage = hasPrePage(currentPage); O;|Cu7WU
kX8NRPW
returnnew Page(hasPrePage, hasNextPage, mCG&=Fx
everyPage, totalPage, $L?KNXHAF!
currentPage, E+#<WK-
k%Vprc
beginIndex); S>S7\b'
} =O-irGms*
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privatestaticint getEveryPage(int everyPage){ ]vP}K
return everyPage == 0 ? 10 : everyPage; ~"NuYM#@
} 1hE{(onI
N_Kdi%q
privatestaticint getCurrentPage(int currentPage){ Vzo<ma^
return currentPage == 0 ? 1 : currentPage; VCJOWUEO1
} }lT;?|n:h
.{} 8mFi1
privatestaticint getBeginIndex(int everyPage, int qZ&~&f|>e
v^vi *c
currentPage){ 4d-(:
return(currentPage - 1) * everyPage; egURRC!
} xwi6#>
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privatestaticint getTotalPage(int everyPage, int :7mHPe}(
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totalRecords){ G$%F`R[
int totalPage = 0; .Y"F3
R
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if(totalRecords % everyPage == 0) Dad$_%
totalPage = totalRecords / everyPage; z|X6\8f
else \"Y,1in#
totalPage = totalRecords / everyPage + 1 ; RjVmHhX
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return totalPage; q=V'pML
} @un+y9m[C
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privatestaticboolean hasPrePage(int currentPage){ L+(ng
return currentPage == 1 ? false : true; zsJermF,O
} Y[dq"
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privatestaticboolean hasNextPage(int currentPage, A`ajsZ{q,
-]H~D4ng
int totalPage){ " aCAA#$J
return currentPage == totalPage || totalPage == e,MsF4'
;R[3nb9%
0 ? false : true; kS:#|yY8%
} ?Rx(@
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} 13`Mt1R
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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。 y!.jpF'uI
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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 =R|XFZ,
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做法如下: 6/Xs}[iJ
1. 编写一个通用的结果存储类Result,这个类包含一个Page对象 ,3y9yJQa*#
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的信息,和一个结果集List: cgSN:$p(R
java代码: <7`zc7c]#
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/*Created on 2005-6-13*/ C5,fX-2Q
package com.adt.bo; \'4~@
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import java.util.List; G9 O6Fi
ow.!4kx{ d
import org.flyware.util.page.Page; wz*iwd-
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/** $?G@ijk,
* @author Joa |f#hGk6
*/ pX?3inQP%(
publicclass Result { v/.'st2%
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private Page page; cN8Fn4gq
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private List content; U5OX.0
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eJ;
/** g-~ _gt7
* The default constructor ]myRYb5Z
*/ J-5>+E,nZ
public Result(){ 8Auek#[
super(); !}#> ky!t
} zqo0P~
p;w&}l{{
/** +*:mKx@Nw
* The constructor using fields /[.V( K
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* -HG.GA
* @param page R[a-"
* @param content . : Wf>:
*/
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public Result(Page page, List content){ ehr-o7](
this.page = page; *WQ?r&[_'
this.content = content; 6FA+qYSV
} o8 JOpD
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/** ApXf<MAy
* @return Returns the content. 'z(Y9%+a
*/ f
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publicList getContent(){ gwRB6m$
return content; <46&R[17M
} FklR!*oL,)
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/** K8;SE!
* @return Returns the page. Z~~6y6p
*/ 3R+%C* 7
public Page getPage(){ o$sD9xx
return page; %o0b~R
} P 0,]`w
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/** @MES.g
* @param content /\w4k
* The content to set. %^IQ<
*/ g<W]NYm
public void setContent(List content){ ayy\7b
this.content = content; s5nw<V9$]
} x#D%3v"l_*
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/** -e/}DGL
* @param page =:gKh
* The page to set. ]#)(D-i
*/ Q)DEcx-|,
publicvoid setPage(Page page){ g"m'
C6;
this.page = page; G%
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} {aY) Qv}
} gwoe1:F:J
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2. 编写业务逻辑接口,并实现它(UserManager, >Ku4Il+36
oMQ4q{&|
UserManagerImpl) &Hb%Q! ^Kb
java代码: q]?qeF[
tO M$'0u
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/*Created on 2005-7-15*/ Nw*<e ]uD
package com.adt.service; "cKD#
V~*Gk! +f
import net.sf.hibernate.HibernateException; |]?f6^|4
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import org.flyware.util.page.Page; |[?Otv
* ,aF-
import com.adt.bo.Result; _J1\c~ke"
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/** fDy*dp4z
* @author Joa s2O()u-
*/ A8'RM F1
publicinterface UserManager { CvU$Fsb
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public Result listUser(Page page)throws x%viCkq
Z/ q6Q#
HibernateException; yB UQ!4e
}Va((X w
} /wJ#-DZ
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java代码: `UsJaoR#f
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/*Created on 2005-7-15*/ 5?0<.f,
package com.adt.service.impl; R-Edht|{
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import java.util.List; /e2zH
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import net.sf.hibernate.HibernateException; }yT/UlU
]}L'jK
0
import org.flyware.util.page.Page; T!c|O3m
import org.flyware.util.page.PageUtil; HMd?`
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import com.adt.bo.Result; XDPR$u8hM
import com.adt.dao.UserDAO; n41#
import com.adt.exception.ObjectNotFoundException; )E9!m
import com.adt.service.UserManager; =yod
JvAXLT
/** s<YN*~
* @author Joa Z<X=00,wg
*/ 7KIekL
publicclass UserManagerImpl implements UserManager { P]Fb0X
rH7Cv/Y
private UserDAO userDAO; ~5P9^`KNH
v2;E W p
/** 1/-3m Po
* @param userDAO The userDAO to set. "@G[:(BoB<
*/ {)qr3-EM#
publicvoid setUserDAO(UserDAO userDAO){ 2y`h'z
this.userDAO = userDAO; IWo'{pk
} ^%f8JoB
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/* (non-Javadoc) W8& )UtWQ
* @see com.adt.service.UserManager#listUser mF
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{!2K-7;
(org.flyware.util.page.Page) rUKg<]&@
*/ Biv)s@"f-Q
public Result listUser(Page page)throws q1rj!7
T1Py6Q,-
HibernateException, ObjectNotFoundException { 9Q9{>d#"
int totalRecords = userDAO.getUserCount(); ("a@V8M`$F
if(totalRecords == 0) T_*inPf
throw new ObjectNotFoundException N@|<3R!N*e
EXSJ@k6=8s
("userNotExist"); }c8nn
page = PageUtil.createPage(page, totalRecords); :?xH)J,imk
List users = userDAO.getUserByPage(page); /h53;$zK
returnnew Result(page, users); "l&SRX?g
} `rn/H;r!Z
T~3{$
} zmhc\M?z
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