Summary of generics--to be continued

Http://www.cnblogs.com/lwbqqyumidi/p/3837629.html

Http://www.blogjava.net/icewee/archive/2012/04/27/376741.html

1  PackageCom.zq.www.common;2 3 ImportJava.lang.reflect.ParameterizedType;4 Importjava.util.List;5 6 ImportJavax.annotation.Resource;7 8 ImportOrg.hibernate.Query;9 Importorg.hibernate.Session;Ten Importorg.hibernate.SessionFactory; One Importorg.springframework.transaction.annotation.Transactional; A  - //using generics - @Transactional the  Public classBasedao<t> { -  -     //spring annotations for automatic injection (auto new) - @Resource +     Privatesessionfactory sessionfactory; -      +      A     /* at * Get session, all additions and deletions from session start -      */ -      -      Publicsessionfactory getsessionfactory () { -         returnsessionfactory; -     } in  -  to      Public voidsetsessionfactory (sessionfactory sessionfactory) { +          This. Sessionfactory =sessionfactory; -     } the  *      PublicSession GS () { $         return  This. Sessionfactory.getcurrentsession ();Panax Notoginseng     } -      the      +      A     /* the * based on T to get the real class type, use reflection +      */ -     protectedClass<t>Entityclass; $  $     protectedClass Getentityclass () { -         if(Entityclass = =NULL) { -Entityclass = (class<t>) ((Parameterizedtype) getclass () the. Getgenericsuperclass ()). Getactualtypearguments () [0]; -         }Wuyi         returnEntityclass; the     } -  Wu      -  About  $     /* - * Add -      */ - @Transactional A      Public voidAdd (T t) { + GS (). Save (t); the     } -      $     /* the * Update the      */ the @Transactional the      Public voidUpdate (T t) { - GS (). Update (t); in     } the  the     /* About * Delete the      */ the @Transactional the      Public voidDelete (Integer id) { +GS (). Delete ( This. Get (ID)); -     } the     Bayi  the     /* the * Enquiry -      */ - @Transactional the      PublicT get (Integer ID) { theT instance =(T) GS (). Get (Getentityclass (), id); the         returninstance; the         -     } the      the  the 94     /* the * Automatically judge add or modify, save the      */ the @Transactional98      Public voidSave (T t) { About GS (). Saveorupdate (t); -     }101     102     103     /*104 * Search All the      */106 @Transactional107      PublicList<t>Listall () {108List<t> result=GS (). Createcriteria (Getentityclass ()). List ();109         returnresult; the     }111      the     113     /* the * General Enquiry the      */     the @Transactional117      PublicList<t> GETLISTBYHQL (FinalString hqlstring,FinalList values) {118Query query =GS (). CreateQuery (hqlstring);119         if(Values! =NULL) { -object[] VVS = Values.toarray (Newobject[values.size ()]);121              for(inti = 0; i < vvs.length; i++) {122 Query.setparameter (i, vvs[i]);123             }124         } the         returnquery.list ();126     }127  -     /*execute a complex SQL query129      *  the * Get a list of:list<string>131      *  the * Get multi-column:list<string[]>133      */134@Transactional (readOnly =true)135      PublicList Getlistbysql (FinalString sqlString,FinalList values) {136Query query =GS (). Createsqlquery (sqlString);137         if(Values! =NULL) {138object[] VVS = Values.toarray (Newobject[values.size ()]);139              for(inti = 0; i < vvs.length; i++) { $ Query.setparameter (i, vvs[i]);141             }142         }143         returnquery.list ();144     }145     146     147     148     /*perform complex SQL update, delete, add149      *  Max * Get the number of rows affected151      *  the      */153 @Transactional154      PublicInteger ExecuteSQL (FinalString sqlString,FinalList values) {155Query query =GS (). Createsqlquery (sqlString);156         if(Values! =NULL) {157object[] VVS = Values.toarray (Newobject[values.size ()]);158              for(inti = 0; i < vvs.length; i++) {159 Query.setparameter (i, vvs[i]); the             }161         }162         returnquery.executeupdate ();163     }164 165     166}

//

list<t> result=GS (). Createcriteria (Getentityclass ()). List ();?????? 

Summary of generics--to be continued