Identify correct and incorrect statements about the Application Assembler's responsibilities, including the use of deployment descriptor elements related to transactions and the identifica

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Identify correct and incorrect statements about the Application Assembler's responsibilities, including the use of deployment descriptor elements related to transactions and the identifica

Identify correct and incorrect statements about the Application Assembler's responsibilities, including the use of deployment descriptor elements related to transactions and the identification of the methods of a particular bean type for which a transaction attribute must be specified.
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Identify correct and incorrect statements about the Application Assembler's responsibilities, including the use of deployment descriptor elements related to transactions and the identification of the methods of a particular bean type for which a transaction attribute must be specified.

There is NO mechanism for an Application Assembler to affect enterprise beans with bean-managed transaction (BMT) demarcation. The Application Assembler MUST NOT define transaction attributes for an enterprise bean with bean-managed transaction demarcation.

The Application Assembler can use the transaction attribute mechanism to manage transaction demarcation for enterprise beans using container-managed transaction demarcation. NOTE, the transaction attributes may be specified either by the Bean Provider or by the Application Assembler.

The Application Assembler uses the container-transaction elements to define the transaction attributes for the methods of session and entity bean home and component interfaces and for the onMessage methods of message-driven beans. Each container-transaction element consists of a list of one or MORE method elements, and the trans-attribute element. The container-transaction element specifies that all the listed methods are assigned the specified transaction attribute value. It is required that all the methods specified in a single container-transaction element be methods of the SAME enterprise bean. 


</ejb-jar>
	...
	<container-transaction>
		<method>	
			<ejb-name>Employee</ejb-name>
			<method-intf>LocalHome</method-intf>
			<method-name>create</method-name>
			<method-params>
				<method-param>java.lang.String</method-param>
			</method-params>
		</method>
		<trans-attribute>Required</trans-attribute>
	</container-transaction>
	<container-transaction>
		<method>
			<ejb-name>Employee</ejb-name>
			<method-intf>LocalHome</method-intf>
			<method-name>findAll</method-name>
			<method-params />
		</method>
		<trans-attribute>Supports</trans-attribute>
	</container-transaction>
 	...
</ejb-jar>

The method element uses the ejb-name, method-name, and method-params elements to denote one or more methods of an enterprise bean's home and component interfaces. There are THREE legal styles of composing the method element: 


<!-- Style 1 -->
<method>
	<ejb-name>EJBName</ejb-name>
	<method-name>*</method-name>
</method>

					

<!-- Style 2 -->
<method>
	<ejb-name>EJBName</ejb-name>
	<method-name>MethodName</method-name>
</method>

					

<!-- Style 3 -->
<method>
	<ejb-name>EJBName</ejb-name>
	<method-name>MethodName</method-name>
	<method-params>
		<method-param>ParameterType_1</method-param>
		...
		<method-param>ParameterType_N</method-param>
	</method-params>
</method>
Style 2 element takes precedence over Style 1 element. Style 3 element takes precedence over Style 2 and Style 1 elements.

The optional method-intf element can be used to differentiate between methods with the same name and signature that are multiply defined across the component and/or home interfaces (must be one of the following: Home, Remote, LocalHome, Local).

The following is an example of the specification of the transaction attributes in the deployment descriptor. The updatePhoneNumber method of the EmployeeRecord enterprise bean is assigned the transaction attribute Mandatory; all other methods of the EmployeeRecord bean are assigned the attribute Required. All the methods of the enterprise bean AardvarkPayroll are assigned the attribute RequiresNew. 


<ejb-jar>
	...
	<assembly-descriptor>
		...

		<container-transaction>
			<method>
				<ejb-name>EmployeeRecord</ejb-name>
				<method-name>*</method-name>
			</method>
			<trans-attribute>Required</trans-attribute>
		</container-transaction>

		<container-transaction>
			<method>
				<ejb-name>EmployeeRecord</ejb-name>
				<method-name>updatePhoneNumber</method-name>
			</method>
			<trans-attribute>Mandatory</trans-attribute>
		</container-transaction>

		<container-transaction>
			<method>
				<ejb-name>AardvarkPayroll</ejb-name>
				<method-name>*</method-name>
			</method>
			<trans-attribute>RequiresNew</trans-attribute>
		</container-transaction>

	</assembly-descriptor>
</ejb-jar>

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Chapter 11. Transactions Home Given a list of transaction behaviors, match them with the appropriate transaction attributes.

Tutorials

  1. Appendix A. First Appendix
  2. Second Section
  3. Third Section
  4. Part II. Appendixes
  5. From a list, identify the responsibility of the bean provider and the responsibility of the container provider for a message-driven bean.
  6. Chapter 6. Component Contract for Container-Managed Persistence (CMP)
  7. Identify correct and incorrect statements or examples about persistent relationships, remove protocols, and about the abstract schema type of a CMP entity bean.
  8. Identify the interfaces and methods a CMP entity bean must and must not implement.
  9. Match the name with a description of purpose or functionality, for each of the following deployment descriptor elements: ejb-name, abstract-schema-name, ejb-relation, ejb-relat
  10. Identify correctly-implemented deployment descriptor elements for a CMP bean (including container-managed relationships).
  11. From a list, identify the purpose, behavior, and responsibilities of the bean provider for a CMP entity bean, including but not limited to: setEntityContext, unsetEntityContext, ejbC
  12. Chapter 7. CMP Entity Bean Life Cycle
  13. Identify correct and incorrect statements or examples about the rules and semantics for relationship assignment and relationship updating in a CMP bean.
  14. From a list, identify the responsibility of the container for a CMP entity bean, including but not limited to: setEntityContext, unsetEntityContext, ejbCreate, ejbPostCreate, ejbActi
  15. Given a code listing, determine whether it is a legal and appropriate way to programmatically access a caller's security context.
  16. Chapter 10. Message-Driven Bean Component Contract
  17. Identify correct and incorrect statements about the purpose and use of the deployment descriptor elements for environment entries, EJB references, and resource manager connection factory r
  18. Identify the use and the behavior of the ejbPassivate method in a session bean, including the responsibilities of both the container and the bean provider.
  19. Chapter 12. Exceptions
  20. Identify correct and incorrect statements or examples about the client view of an entity bean's local component interface (EJBLocalObject).
  21. Identify EJB 2.0 container requirements.
  22. Chapter 1. EJB Overview
  23. Identify correct and incorrect statements or examples about EJB programming restrictions.
  24. Chapter 9. EJB-QL
  25. Identify correct and incorrect statements or examples about the purpose and use of EJB QL.
  26. Identify correct and incorrect conditional expressions, BETWEEN expressions, IN expressions, LIKE expressions, and comparison expressions.
  27. Identify correct and incorrect statements or examples about the client view of a entity bean's remote component interface (EJBObject).
  28. Given a list, identify which are requirements for an EJB-jar file.
  29. Match EJB roles with the corresponding description of the role's responsibilities, where the description may include deployment descriptor information.
  30. Chapter 2. Client View of a Session Bean
  31. Chapter 13. Enterprise Bean Environment
  32. Chapter 8. Entity Beans
  33. Identify the use, syntax, and behavior of, the following entity bean home method types, for Container-Managed Persistence (CMP); finder methods, create methods, remove methods, and home me
  34. Identify correct and incorrect statements or examples about an entity bean's primary key and object identity.
  35. Identify correct and incorrect statements or examples about the client's view of exceptions received from an enterprise bean invocation.
  36. Identify correct and incorrect statements or examples about application exceptions and system exceptions in entity beans, session beans, and message-driven beans.
  37. Given a particular method condition, identify the following: whether an exception will be thrown, the type of exception thrown, the container's action, and the client's view.
  38. Given a list of responsibilities related to exceptions, identify those which are the bean provider's, and those which are the responsibility of the container provider. Be prepared to recog
  39. SCBCD Study Guide
  40. Identify the use and behavior of the MessageDrivenContext interface methods.