EJB Overview
• Identify the use, benefits, and characteristics
of Enterprise JavaBeans technology, for version
2.0 of the EJB specification.
• Identify EJB 2.0 container requirements.
• Identify correct and incorrect statements
or examples about EJB programming restrictions.
• Match EJB roles with the corresponding
description of the role's responsibilities, where
the description may include deployment descriptor
information.
• Given a list, identify which are requirements
for an EJB-jar file.
Client View of a Session Bean
• Identify correct and incorrect statements
or examples about the client view of a session
bean's local and remote home interfaces, including
the code used by a client to locate a session
bean's home interface.
• Identify correct and incorrect statements
or examples about the client view of a session
bean's local and remote component interfaces.
Session Bean Component Contract
• Identify correct and incorrect statements
or examples about session beans, including conversational
state, the SessionBean interface, and create methods.
• Identify the use of, and the behavior
of, the ejbPassivate method in a session bean,
including the responsibilities of both the container
and the bean provider.
• Identify the interface and method for
each of the following: Retrieve the session bean's
remote home interface, Retrieve the session bean's
local component interface, Determine if the session
bean's caller has a particular role, Allow the
instance to mark the current transaction as a
roleback, Retrieve the UserTransaction interface,
Prepare the instance for re-use following passivation,
Release resources prior to removal, Identify the
invoker of the bean instance's component interface,
Be notified that a new transaction has begun,
be notified that the current transaction has completed.
• Match correct descriptions about purpose
and function with which session bean type they
apply to: stateless, stateful, or both.
• Given a list of responsibilities related
to session beans, identify those which are the
responsibility of the session bean provider, and
those which are the responsibility of the EJB
container provider.
• Given a list of requirements, identify
those which are the requirements for a session
bean class, remote component interface, remote
home interface, create methods, business methods,
local component interface, local home interface.
Session Bean Lifecycle
• Identify correct and incorrect statements
or examples about the lifecycle of a stateful
or stateless session bean instance.
• Given a list of methods of a stateful
or stateless session bean class, define which
of the following operations can be performed from
each of those methods: SessionContext interface
methods, UserTransaction methods, JNDI access
to java:comp/env environment naming context, resource
manager access and other enterprise bean access.
• Given a list of scenarios, identify which
will result in an ejbRemove method not being being
called on a bean instance.
Client view of an Entity
• Identify correct and incorrect statements
or examples about the client of an entity bean's
local and remote home interface, including view
the code used to locate an entity bean's home
interface, and the home interface methods provided
to the client.
• Identify correct and incorrect statements
or examples about the client view of an entity
bean's local component interface (EJBLocalObject).
• Identify correct and incorrect statements
or examples about the client view of a entity
bean's remote component interface (EJBObject).
• Identify the use, syntax, and behavior
of, the following entity bean home method types,
for CMP: finder methods, create methods, remove
methods, and home methods.
Component Contract for Container-Managed
Persistence (CMP)
• Identify correct and incorrect statements
or examples about the entity bean provider's view
and programming contract for CMP, including the
requirements for a CMP entity bean.
• Identify correct and incorrect statements
or examples about persistent relationships, remove
protocols, and about the abstract schema type,
of a CMP entity bean.
• Identify correct and incorrect statements
or examples about the rules and semantics for
relationship assignment, and relationship updating,
in a CMP bean.
• 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-relationship-role, cmr-field,
cmr-field-type, and relationship-role-source.
• Identify correctly-implemented deployment
descriptor elements for a CMP bean (including
container-managed relationships).
• Identify the interface(s) and methods
a CMP entity bean must and must not implement.
CMP Entity Bean Lifecycle
• Identify correct and incorrect statements
or examples about the lifecycle of a CMP entity
bean.
• 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, ejbCreate,
ejbPostCreate, ejbActivate, ejbPassivat, ejbRemove,
ejbLoad, ejbStore, ejbFind, ejbHome, and ejbSelect.
• From a list, identify the responsibility
of the container for a CMP entity bean, including
but not limited to: setEntityContext, unsetEntityContext,
ejbCreate, ejbPostCreate, ejbActivate, ejbPassivate,
ejbRemove, ejbLoad, ejbStore, ejbFind, ejbHome,
and ejbSelect.
Entity Beans
• From a list of behaviors, match them with
the appropriate EntityContext method responsible
for that behavior.
• Identify correct and incorrect statements
or examples about an entity bean's primary key
and object identity.
EJB-QL
• Identify correct and incorrect syntax
for an EJB QL query including the SELECT, FROM,
and WHERE clause.
• Identify correct and incorrect statements
or examples about the purpose and use of EJB QL.
• Identify correct and incorrect conditional
expressions, between expression, in expressions,
like expressions, and comparison expressions.
Message-Driven Bean Component Contract
• Identify correct and incorrect statements
or examples about the client view of a message-driven
bean, and the lifecycle of a message-driven bean.
• Identify the interface(s) and methods
a JMS Messaged-Driven bean must implement.
• Identify the use and behavior of the MessageDrivenContext
interface methods.
• From a list, identify the responsibility
of the bean provider, and the responsibility of
the container provider for a message-driven bean.
Transactions
• Identify correct and incorrect statements
or examples about EJB transactions, including
bean-managed transaction demarcation, and container-managed
transaction demarcation.
• 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.
• Given a list of transaction behaviors,
match them with the appropriate transaction attribute.
• Given a list of responsibilities, identify
whose which are the container's with respect to
transactions, including the handling of getRollbackOnly,
setRollbackOnly, getUserTransaction, SessionSynchronzation
callbacks, for both container and bean-managed
transactions.
Exceptions
• Identify correct and incorrect statements
or examples about exception handling in EJB.
• 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 recognize
responsibilities for which neither the bean or
container provider are responsible.
• Identify correct and incorrect statements
or examples about application exceptions and system
exceptions in entity beans, session beans, and
message-driven beans.
• 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.
• Identify correct and incorrect statements
or examples about the client's view of exceptions
received from an enterprise bean invocation.
Enterprise Bean Environment
• Identify correct and incorrect statements
or examples about an enterprise bean's environment
JNDI naming.
• Identify correct and incorrect statements
about the purpose and/or use of the deployment
descriptor elements for environment entrys, ejb
references, and resource manager connection factory
references, including whether a given code listing
is appropriate and correct with respect to a particular
deployment descriptor element.
• Given a list of responsibilities, identify
which belong to the deployer, bean provider, application
assembler, container provider, system administrator,
or any combination.
Security Management
• Identify correct and incorrect statements
about the EJB support for security management
including security roles, security role references,
and method permissions.
• From a list of responsibilities, identify
which belong to the application assembler, bean
provider, deployer, container provider, or system
administrator.
• Given a code listing, determine whether
it is a legal and/or appropriate way to programmatically
access a caller's security context.
• Given a security-related deployment descriptor
tag, identify correct and incorrect statements
and/or code related to that tag.
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