1Z0-898 무료 덤프문제 온라인 액세스

A session bean business method throws an exception during execution.
Which two are responsibilities of the Bean Provider when throwing the exception? (Choose two.)

• A.For application exceptions, ensure that ifthe current transaction commits there will be noloss ofdata integrity.
• B.For checked exceptions from which the bean cannot recover, throw an EJBException that wraps the original exception.
• C.For system errors, when the client is remote through a java.rmi.remoteException that wraps the original exception.
• D.For application exceptions, ensure that the current transaction will commit.

Consider a persistence application with following entity:
@Entity
Public class MyEntity {
@Column (name = "FIELDA_COLUMN")
int fieldA;
int fieldB;
int fieldC;
int fieldD;
An orm.xml is packaged in the application with the following contents:

Which two of following statement are true. (Choose two)

• A.fieldA is mapped to column FIELDA
• B.fieldD is not a persistence attribute of MyEntity
• C.fieldB is mapped to column NEW_COLB
• D.fieldD is a persistent attribute of MyEntity

An application wants to utilize side effects of cascading entity manager operations to related entities.
Which statement is correct?

• A.The persist operation is always cascaded to related entitles for one-to one and one-to-many relationships.
• B.The remove operation applied to a removed entity x is cascaded to entities referenced by x of the relationship from x to these other entities is annotated with the cascade = REMOVE of cascade = ALL annotation element value.
• C.To minimize the effect of the remove operation applied to an entity participating in a many-tomany relationship the remove operation should hecascadeto entities on both sides of the relationship.
• D.The persist operation applied to a new entity x is cascaded to entities referenced by x if the relationship from x to these other entities is annotated with the cascade=PERSIST or cascade=ALL annotation element value.

A developer has created a deep entity class hierarchy with many polymorphic relationships between entitles. Which inheritance strategy, as defined by the inheritanceType enumerated type, will be most performed in this scenario?

• A.Polymorphic join table (inheritanceType. POLYMORPHIC_JOIN_TABLE)
• B.Single table-per-class-hierarchy (InheritanceType.SINGLE_TABLE)
• C.Joined-subclass (inheritanceType. JOINED)
• D.Table-per-concrete-class (inheritanceType.TABLE_PER_CLASS)

Which statement is correct about the Java Persistence API support for the SQL queries?

• A.The result of an SQL query is not limited to entities.
• B.SQL queries are NOT allowed to use parameters.
• C.SQL queries are expected to be portable across databases.
• D.Only SELECT SQL queries are required to be supported.