Java Persistence API (JPA) Development

Programming & Development

$15/hr Starting at $100

The Java Persistence API (JPA) is a Java specification for accessing, persisting, and managing data between Java objects / classes and a relational database. JPA was defined as part of the EJB 3.0 specification as a replacement for the EJB 2 CMP Entity Beans specification. JPA is now considered the standard industry approach for Object to Relational Mapping (ORM) in the Java Industry. JPA itself is just a specification, not a product; it cannot perform persistence or anything else by itself. JPA is just a set of interfaces, and requires an implementation. There are open-source and commercial JPA implementations to choose from and any Java EE 5 application server should provide support for its use. JPA also requires a database to persist to. JPA allows POJO (Plain Old Java Objects) to be easily persisted without requiring the classes to implement any interfaces or methods as the EJB 2 CMP specification required. JPA allows an object's object-relational mappings to be defined through standard annotations or XML defining how the Java class maps to a relational database table. JPA also defines a runtime EntityManager API for processing queries and transaction on the objects against the database. JPA defines an object-level query language, JPQL, to allow querying of the objects from the database.

About

$15/hr Ongoing

Download Resume

The Java Persistence API (JPA) is a Java specification for accessing, persisting, and managing data between Java objects / classes and a relational database. JPA was defined as part of the EJB 3.0 specification as a replacement for the EJB 2 CMP Entity Beans specification. JPA is now considered the standard industry approach for Object to Relational Mapping (ORM) in the Java Industry. JPA itself is just a specification, not a product; it cannot perform persistence or anything else by itself. JPA is just a set of interfaces, and requires an implementation. There are open-source and commercial JPA implementations to choose from and any Java EE 5 application server should provide support for its use. JPA also requires a database to persist to. JPA allows POJO (Plain Old Java Objects) to be easily persisted without requiring the classes to implement any interfaces or methods as the EJB 2 CMP specification required. JPA allows an object's object-relational mappings to be defined through standard annotations or XML defining how the Java class maps to a relational database table. JPA also defines a runtime EntityManager API for processing queries and transaction on the objects against the database. JPA defines an object-level query language, JPQL, to allow querying of the objects from the database.

Skills & Expertise

API DevelopmentDatabase DevelopmentHibernateJavaJpaManagementObject Oriented ProgrammingSoftware DevelopmentSpring Framework

Related Work Collections

GST (Goods Service Text management)

22 Reviews

Michael Fitzgerald. says,

I continue to enjoy working with Parth. He fits in very well with the team.

for .Net Core Web App Development on Sep 03, 2020
Michael Fitzgerald. says,

Parth took on a very tricky task this week and persisted with it until he achieved the desired outcome. Impressive!

for .Net Core Web App Development on Aug 28, 2020
Michael Fitzgerald. says,

Parth helped with some big improvements to our system this week. His in-depth knowledge is an asset to the team.

for .Net Core Web App Development on Aug 21, 2020
Michael Fitzgerald. says,

Parth is a very experienced and knowledgeable member of the team. He continues to delivery quality outcomes.

for .Net Core Web App Development on Aug 13, 2020
Michael Fitzgerald. says,

I am enjoying working with Parth. He continues to be a very valuable member of the team.

for .Net Core Web App Development on Aug 06, 2020

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