olap4j 1.1.0 was released on January 17th,
This olap4j release includes the specification, a
technology compatibility kit (TCK) and a generic XML/A
driver compatible with Pentaho Analysis (Mondrian),
Microsoft SQL Server Analysis Services, Palo and SAP
This release is a minor update to the olap4j
specification. There have been changes to the internal
APIs which will affect developers and implementors of the
specification. This release is backwards compatible with
applications written against olap4j 1.0.
This release is also the first to introduce our new
It consists of a Java Servlet implementation that provides
XMLA services based on an underlying olap4j
connection. For more details, consult
the project page at
New Features / Improvements
- Switched to the JavaCC parser (was previously JavaCUP).
- Added compatibility with Mondrian 4+.
- Minor changes to the NamedList interface.
Bug Fixes in Core
- Fix bug
71, "Inconsistent behavior when parsing
'.CHILDREN' and '.Children'".
- Fix bug
73, "Incomplete LCID list".
- Fix bug
76, "Still missing code from LCID-to-Locale
Bug Fixes in XMLA driver
- Fixes compatibility issues with Essbase.
- Fixes compatibility issues with SAP BW.
- Fixes a thread-safety issue in DeferredNamedList.
Olap4j is distributed as four Java JAR libraries.
||Core API, Query Model, Transformation and other auxiliary packages,
along with the driver specification.
||Driver implementation of olap4j for XML/A data
sources. It is compatible with Mondrian, Palo, SAP BW
and SQL Server 2005+.
||Technology compatibility kit. Consists mostly of JUnit tests.
||Olap4j distribution compatible with Java 1.4. Includes the core API and
the XML/A driver.
Packages and Roadmap
The core API of olap4j version 1.0 is a Long Term Support
(LTS) release, but some parts of the olap4j project will
remain considered as experimental, thus subject to change in
The core packages in olap4j-1.0 are as follows.
The following packages are considered experimental and
are subject to change.
- Mondrian, an
OLAP engine that natively supports olap4j;
a wrapper that converts any olap4j data source into an XMLA
download the specification, and give us your feedback. If you are
developing an OLAP server, component or application, let's work
together to make your project olap4j-compliant.
There are olap4j drivers for mondrian and XML/A; we are looking
for committers to port the XML/A driver to new servers, and to write
native drivers for other OLAP engines.
olap4j is an open specification, developed by a consortium of companies and open source projects, including: