EclipseLink
EclipseLink is an open-source Java persistence framework that provides an implementation of the Java Persistence API (JPA) specification. It enables developers to map Java objects to relational databases, supporting object-relational mapping (ORM) for efficient data access and management in enterprise applications. The framework also includes advanced features like caching, query optimization, and support for XML and JSON data formats.
Developers should use EclipseLink when building Java EE or Jakarta EE applications that require robust and scalable persistence solutions, particularly in enterprise environments where complex data models and high-performance queries are needed. It is ideal for projects leveraging JPA standards, as it offers extensive compliance, advanced caching mechanisms, and support for multiple database vendors, making it suitable for applications with demanding data access requirements.