jpa - What is Correct Way to implement a EJB to search using form parameters? -


i have bean works. implement method in order receive parameters jsf search form, perform search , return results.

so, questions are: - method signature wrap search parameters? - there way config hibernate/jpa behavior make single select returns registries fits search parameter instead of actual behavior (1 query excuted per row returned)?

import java.util.list;  import javax.ejb.stateful; import javax.persistence.entitymanager; import javax.persistence.persistencecontext; import javax.persistence.persistencecontexttype; import javax.persistence.typedquery;  import my.package.entity.address;  @stateful public class addressejb {     @persistencecontext(unitname = "rentacar-persistence-unit",type=persistencecontexttype.extended)     private entitymanager entitymanager;      public list<address> findall() {         typedquery<address> query = entitymanager.createnamedquery(                 "address.findall", address.class);         return query.getresultlist();     }   /*this method want write*/     public list<address> findbyparameter() {         typedquery<address> query = entitymanager.createnamedquery(                 "address.findall", address.class);         return query.getresultlist();     }         public address addnew(address address) {         entitymanager.persist(address);         return address;     }      public address update(address address) {         entitymanager.merge(address);         return address;     }      public void delete(address country) {         entitymanager.remove(country);     }    }


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