java - retrieving List<Entity> from List<Object[]> JPA -

i have entity class calle publication, method called getallpublication return list<publication> , query inside method has resultlist of type list<object[]>, how can retrieve list of publication entity fromthe list<object[]>: -here method :

public list<publication> getallpublication() {     list<object[]> listepublication;     query q;     em.gettransaction().begin();     q=em.createquery("select c.titrepublication,     c.datepublication, c.corps,p.login publication c  join c.employee p ");     listepublication = q.getresultlist();     //arraylist<publication> results = new arraylist<publication>();     //for (object[] resultat : listepublication)     //results.add((publication) resultat[0]);*/     em.gettransaction().commit();     return results; } 

thanks in advance. here entity class

 package entities;  import java.io.serializable; import javax.persistence.*;  @entity @namedquery(name="publication.findall", query="select p publication p") public class publication  {       @id     @column(name="\"idpublication\"")     private integer idpublication;      private string corps;      @column(name="\"datepublication\"")     private string datepublication;      @column(name="\"titrepublication\"")     private string titrepublication;      @manytoone(fetch=fetchtype.lazy)     @joincolumn(name="auteur")     private employee employee;      public publication() {     }      public integer getidpublication() {         return this.idpublication;     }      public void setidpublication(integer idpublication) {         this.idpublication = idpublication;     }      public string getcorps() {         return this.corps;     }      public void setcorps(string corps) {         this.corps = corps;     }      public string getdatepublication() {         return this.datepublication;     }      public void setdatepublication(string datepublication) {         this.datepublication = datepublication;     }      public string gettitrepublication() {         return this.titrepublication;     }      public employee getemployee() {         return employee;     }      public void setemployee(employee employee) {         this.employee = employee;     }      public void settitrepublication(string titrepublication) {         this.titrepublication = titrepublication;     } } 

try

public list<publication> getallpublication() {     typedquery<publication> query = em. createnamedquery(publication.find_all, publication.class);     return query.getresultlist(); } 

and entity looks like:

 package entities;  import java.io.serializable; import javax.persistence.*;  @entity @namedquery(name=publication.find_all, query="select p publication p") public class publication  {      public static final string find_all = "publication.findall";      @id     @column(name="\"idpublication\"")     private integer idpublication;      private string corps;      @column(name="\"datepublication\"")     private string datepublication;      @column(name="\"titrepublication\"")     private string titrepublication;      @manytoone(fetch=fetchtype.lazy)     @joincolumn(name="auteur")     private employee employee;      public publication() {     }      public integer getidpublication() {         return this.idpublication;     }      public void setidpublication(integer idpublication) {         this.idpublication = idpublication;     }      public string getcorps() {         return this.corps;     }      public void setcorps(string corps) {         this.corps = corps;     }      public string getdatepublication() {         return this.datepublication;     }      public void setdatepublication(string datepublication) {         this.datepublication = datepublication;     }      public string gettitrepublication() {         return this.titrepublication;     }      public employee getemployee() {         return employee;     }      public void setemployee(employee employee) {         this.employee = employee;     }      public void settitrepublication(string titrepublication) {         this.titrepublication = titrepublication;     } }