Apache Empire-db: Difference between revisions

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{{Short description|Open-source Java library}}

{{Unreferenced|date=May 2011}}

{{Notability|Products|date=March 2022}}

{{Infobox software

| name = Apache Empire-db

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| caption =

| developer = [[Apache Software Foundation]]

| latest release version = 23.40.70

| latest release date = {{Start date and age|20182022|1003|3111}}

| latest preview version =

| latest preview date =

| operating system = [[Cross-platform]]

| repo = {{URL|https://gitbox.apache.org/repos/asf?p={{=}}empire-db.git|EmpireDB Repository}}

| programming language = [[Java (programming language)|Java]]

| genre = [[Persistence Framework]]

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Compared to [[Object-relational mapping]] (ORM) or other data persistence solutions such as [[Hibernate (Java)|Hibernate]], [[iBATIS]] or [[TopLink]] Empire-db does not use XML files or Java annotations to provide a mapping of plain (old) Java object ([[POJO]]'s) to database tables, views and columns. Instead Empire-db uses a Java object model to describe the underlying data model and an API that works almost solely with object references rather than [[string literal]]s.

Empire-db's aim is to provide better software quality and improved maintainability through increased compile-time safety and reduced redundancy of metadata. Additionally applications may benefit from better performance due to full control over [[SQL]] statements and their execution by the developer compared to most OR-mapping solutions.<ref>{{Cite web |title=Apache Empire-db |url=https://empire-db.apache.org/pages/home.html |access-date=2022-03-21 |website=empire-db.apache.org}}</ref>

== Major benefits ==

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Using references to table and column objects significantly improves compile-time safety and thus reduces the amount of testing. As a positive side effect the IDE's code completion can be used to browse the data model, increases productivity and eliminates the need for other external tools or IDE-plugins.

Further the object model also provides safe and easy access to meta-information of the data model such as field data type, maximum field length, whether a field is mandatory and a finite choice of options for a field’sfield's values. Metadata is user-extensible and not limited to DBMS related metadata. Availability of meta-information encourages more generic code and eliminates redundancies throughout application layers.

== Features at a glance ==

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* [[TopLink]]

* [[Apache Struts]]

==References==

{{reflist}}

== External links ==

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[[Category:Apache Software Foundation projects|Empire-db]]

[[Category:Java (programming language) libraries]]