JPA with Hibernate Training Course in Bowie, Maryland

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JPA with Hibernate Training in Bowie

Enroll in or hire us to teach our JPA with Hibernate class in Bowie, Maryland by calling us @303.377.6176. Like all HSG classes, JPA with Hibernate may be offered either onsite or via instructor led virtual training. Consider looking at our public training schedule to see if it is scheduled: Public Training Classes

Provided there are enough attendees, JPA with Hibernate may be taught at one of our local training facilities.


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Java Programming Stats-Uses and Pros-Cons
Course Description
This course offers a comprehensive and detail-oriented treatment of Hibernate 4.0 and the Java Persistence API (JPA) 2.0 for developers interested in implementing persistence tiers for enterprise applications. We cover JPA basics including simple object/relational concepts and annotations, persistence contexts and entity managers, and configuration via persistence.xml. We get a good grounding in the Java Persistence Query Language (JPQL) and take advantage of a prepared JPQL query console to explore the two schemas on which the course's case studies are based. The course then moves into advanced topics including JPA-2.0 mapping options, the Criteria API, lifecycle hooks, JSR-303 validation, locking, and caching. Students will complete the course with a firm understanding of JPA architecture and plenty of hands-on exercise in entity mapping, persistence operations, and JPQL. Course software includes two schemas: a fairly simple human-resources model (6 tables, 253 rows) for early chapters and a more sophisticated pharmacy schema (14 tables, 4255 rows) for the latter half of the course. The course supports either the Derby or Oracle RDBMS. Derby is bundled with the course software and is pre-configured; a script is included to change over to Oracle configurations for all exercises and schema-creation scripts are available for both. Course Length: 4 Days Course Tuition: $1690 (US)

Prerequisites
A strong Java programming background is essential for this course. Knowledge of relational database concepts and SQL is recommended. Prior experience with JDBC will be a plus but is not required.

Course Outline

Chapter 1. Introduction to JPA

Object/Relational Mapping
Mismatches Between Relational and Object Models
The Java Persistence API
Hibernate
History
Architecture
Entity Metadata
The Entity Manager

Chapter 2. Object/Relational Mapping

Annotations
JavaBean Standards
Property, Field, and Mixed Access
Table and Column Mapping
Primary Keys and Generation
Type Mappings
Temporal and Enumerated Types
Embedded Types
Entity Relationships
@ManyToOne Relationships
@OneToOne Relationships
@OneToMany Relationships
@ManyToMany Relationships
Eager and Lazy Loading

Chapter 3. Entity Managers

Putting Entities to Work
persistence.xml
Entity State and Transitions
Managing Transactions
Persistence Operations
Creating Queries
Named Queries
Query Parameters
Native Queries

Chapter 4. JPQL

The Java Persistence Query Language
HQL and JPQL
Query Structure
Path Expressions
Filtering
Scalar Functions
Operators and Precedence
between, like, in
is null, is empty
Ordering
Aliases
Grouping
Aggregate Functions
Joins
Constructors

Chapter 5. Advanced Mappings

Inheritance Strategies
Single-Table Strategy
Joined-Table Strategy
Table-Per-Concrete-Class Strategy
Querying Over Inheritance Relationships
Type Identification with .class
Secondary Tables
Composite Primary Keys
@IdClass and @EmbeddedId
Derived Identifiers
@ElementCollection
Default Values
@Version Fields
Cascading and Orphan Removal
Detachment and Merging
Hibernate Extensions
The @Type Annotation

Chapter 6. The Criteria API

History of the Criteria API
Criteria Query Structure
The MetaModel API and Query Type Safety
The Hibernate Metamodel Generator
Tuples
Joins
Predicates
Building Expressions
Ordering
Grouping
Encapsulating Persistence Logic
Façades
Range Queries

Chapter 7. Lifecycle and Validation

Lifecycle Events
Method Annotations
Entity Listeners
JSR-303 Validation
The Hibernate Validator
Constraint Annotations
Validation Modes
Validation Groups

Chapter 8. Locking and Caching

Concurrency
Optimistic Locking
Optimistic Read Locking
Optimistic Write Locking
Pessimistic Locking
Caching
Persistence Context as Transactional Cache
Shared (2nd-level) Cache
Locking and Caching "Do's and Don'ts"

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Java Programming Uses & Stats

Java Programming is Used For:

Android & IOS Development Software Products Video Games Desktop GUI's

Difficulty

Popularity

Year Created

1995

Pros

Most Commonly Used:
According to Oracle, three billion devices run on Java. And, because of its real-world applications, it consistently ranks at the top of the TIOBE Programming Community Index.

Great Career Choice:
Some of the fastest-growing salaries in the U.S. in 2018 are for Java developers. (Glassdoor)

Android Apps Development:
Developers predominatly use their Java skills in building apps for Google's Android. The Android platform is the number one mobile paltform in the world

It Can Run On Any Platform:
Java can compile on Windows and run the same compiled file on Linux, Windows and Mac.

Great Supporting IDE's:
Over the years, coding in Java has become simpler with the introduction of open source development tools, i.e. Eclipse and NetBeans that use Java capabilities for debugging.

Cons

Uses a Lot of Memory:
Performance can be significantly slower with Java and more memory-consuming than natively compiled languages such as C or C++.

Difficulty in Learning:
Learning Java can be a bit challenging if you are a beginner. However, once you get the hang of Object Oriented Programming and a decent grasp of the syntax, you will be well on your way.

Slow Start Up Times:
There is quite a bit of one-time initialization done by JDK classes before compiling as well as loading classes and verification (making sure code doesn't do evil things, all of which takes longer that some other languages such as C.

Verbose and Complex Code:
Long, over-complicated sentences make code less readable and scannable. Compare to let's say Python, we can see how clear Python code appears: It doesn’t require semicolons; uses “and,” “or,” and “not” as operators instead of Java’s “&&,” “||,” and “!”; and generally has fewer bells and whistles such as parentheses or curly braces.

Commercial License Cost:
Companies have to prepare for the changes that Oracle will institute in 2019 . Today, the current version of Java is free and available for redistribution for general purpose computing. However, If you are a DEVELOPER, Oracle recommends you review the roadmap information for Java SE 8 and beyond and take appropriate action depending on the type of application you develop and your distribution mode.

Java Programming Job Market

Average Salary $102,000	Job Count 26,856	Top Job Locations New York City San Jose Washington D.C,

Average Salary

$102,000

Job Count

26,856

Top Job Locations

New York City
San Jose
Washington D.C,

Complimentary Skills to have along with Java Programming

- If you are an experienced Java developer, learning a complimentary language to Java should come much more naturally. As an example JetBrains recently created the Kotlin programming language which is officially supported by Google for mobile development. Kotlin compiles to Java bytecode and runs on the JVM; it's purported to address many of Java's shortcomings...