Oracle 1Z0-898 EXAM QUESTIONS & ANSWERS

Exam Code: 1Z0-898
Exam Name: Java Platform, Enterprise Edition 6 Java Persistence API Developer Certified Expert Exam
Questions: 63 Q&As
Updated: 2019-02-04
Price: $ 59 / $ 69

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Java EE 6 Java Persistence API Developer Certified Expert Exam
Exam Number: 1Z0-898
Associated Certifications: Oracle Certified Expert, Java EE 6 Java Persistence API Developer
Exam Product Version: Java EE,
Duration: 135 minutes
Number of Questions: 64
Passing Score: 61%
Validated Against:
format: Multiple Choice

Exam Topics

Overview of the Java Persistence API

  • Describe the basics of Object Relational Mapping (ORM)
  • Define the key concepts of the Java Persistence API (entity, entity manager, and persistence unit)

Introducing the Auction Application

  • Describe the auction application
  • Define the domain objects of the auction application
  • Describe the implementation model for the auction system

Java Persistence API Entities

  • Describe the difference between objects and entities
  • Describe the difference between persistent fields and properties
  • Identify and use common Java Persistence API annotations, such as @Entity, @Id, @Table, and @Column

Understanding the Entity Manager

  • Describe the relationship between an entity manager, a persistence context, and a persistence unit
  • Describe the difference between a container-managed entity manager and an application-managed entity manager
  • Describe the entity life cycle

Modeling Entity Relationships

  • Examine association relationships in the data and object models
  • Use relationship properties to define associations
  • Implement one-to-one unidirectional associations
  • Implement one-to-one bidirectional associations
  • Implement many-to-one/one-to-many bidirectional associations
  • Implement many-to-many bidirectional associations
  • Implement many-to-many unidirectional associations
  • Examine fetch and cascade mode settings

Entity Inheritance and Object-Relational Mapping

  • Examine entity inheritance
  • Examining object/relational inheritance hierarchy mapping strategies
  • Inherit from an entity class
  • Inherit using a mapped superclass
  • Inherit from a non-entity class
  • Examine inheritance mapping strategies
  • Use an embeddable class

Persisting Enums and Collections

  • Persist entities that contain enums with @Enumerated
  • Persist entities that contain lists with @ElementCollection
  • Persist entities that contain maps with @ElementCollection

Introduction to Querying

  • Find an Entity by its primary key
  • Understand basic Java Persistence API query language queries
  • Understand native SQL queries
  • Understand basic Criteria API queries

Using the Java Persistence API Query Language

  • Examine the Java Persistence API query language
  • Create and use the SELECT statement
  • Create and use the UPDATE statement
  • Create and use the DELETE statement

Using the Java Persistence API Criteria API

  • Contrast queries that use the Criteria API with queries that use the Java Persistence query language
  • Describe the metamodel object approach to querying
  • Create Criteria API queries

Using the Java Persistence API in a Container

  • Use the Java Persistence API from a servlet
  • Use the Java Persistence API from a stateless session bean

Implementing Transactions and Locking

  • Describe the transaction demarcation management
  • Implement container-managed transactions (CMT)
  • Interact programmatically with an ongoing CMT transaction
  • Implement bean-managed transactions (BMT)
  • Apply transactions to the Java Persistence API

Advanced Java Persistence API Concepts

  • Specify composite primary keys
  • Override mappings with the @AttributeOverride and @AssociationOverride annotations
  • Understand entity listeners and callback methods

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