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Building Java Enterprise Applications Volume I: Architecture phần 10

Tham khảo tài liệu 'building java enterprise applications volume i: architecture phần 10', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Building Java Enterprise Applications Volume I Architecture public AccountTypeLocal findByPrimaryKey Integer accountTypelD throws FinderException EJBException public AccountTypeLocal findByType String type throws FinderException EJBException Example E-12 is the implementation class for the AccountType bean. Example E-12. The AccountTypeBean Implementation Class package com.forethought.ejb.accountType import javax.ejb.CreateException import javax.naming.Context import javax.naming.InitialContext import javax.naming.NamingException import com.forethought.ejb.sequence.SequenceException import com.forethought.ejb.sequence.SequenceLocal import com.forethought.ejb.sequence.SequenceLocalHome import com.forethought.ejb.util.EntityAdapter public abstract class AccountTypeBean extends EntityAdapter public Integer ejbCreate String type throws CreateException Get the next primary key value try Context context new InitialContext Note that RMI-IIOP narrowing is not required SequenceLocalHome home SequenceLocalHome context.lookup java comp env ejb SequenceLocalHome SequenceLocal sequence home.create String accountTypeKey String context.lookup java comp env constants AccountTypeKey Integer id sequence.getNextValue accountTypeKey Set values setId id setType type return null catch NamingException e throw new CreateException Could not obtain an InitialContext. catch SequenceException e throw new CreateException Error getting primary key value e.getMessage public void ejbPostCreate String type Empty implementation public abstract void setId Integer id public abstract Integer getId 239 Building Java Enterprise Applications Volume I Architecture public abstract String getType public abstract void setType String type E.1.4 The Fund Bean Example E-13 is the remote interface for the Fund entity bean. Example E-13. The Fund Remote Interface package com.forethought.ejb.fund import java.rmi.RemoteException import javax.ejb.EJBObject public interface Fund extends EJBObject public FundInfo .