What is ADQL ?

ADQL is a SQL-like language which includes astronomical facilities to query a database. This language has been defined by theIVOA in the Recommendation of 30 Oct 2008 (Version 2.0) and is mainly used in the Table Access Protocol (TAP).

Why this library ?

In order to help Java developpers to parse, manipulate and translate ADQL queries quickly and with as few lines of code as possible.

• Parse: read ADQL queries in text and transform them into a Java object (actually, a syntactic tree).
• Manipulate: the generated object can be manipulated so than modifying the original query.
• Translate: an interface and some implementations lets translating ADQL into other languages like SQL.

Validator/Demo

How to use it ?

• Getting started: to start with this library.
• Documentation: to have more details about all provided functionnalities.
• UML: UML diagrams of all available classes.
• Javadoc: Java documentation of all available classes.
• What's new ?: Last modifications of the library.

If you have any question about the ADQL library, you can send it toGrégory Mantelet (CDS).

This library is free: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License.