BIRT/FAQ/Limitations

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Contents

Browser Limitations

BIRT follows the W3C CSS 2.1 standards. However, Microsoft IE follows a subset of these standards. The following table shows the limitations within BIRT due to limitations of browser and of Apache FOP.

PropertyInternet ExplorerFirefox 1.0Apache FOP
Grid.padding*
Table.padding*
Not supported in BIRT 1.0Not supported in BIRT 1.0Not supported in BIRT 1.0
Column.padding*Not supported in BIRT 1.0Not supported in BIRT 1.0Not supported in BIRT 1.0
Row.padding*Not supported in BIRT 1.0Not supported in BIRT 1.0Not supported in BIRT 1.0
Cell.padding*SupportedSupportedSupported
Grid.border*
Table.border*
SupportedSupportedSupported
Column.border*Not supported by browser,
Not supported by BIRT 1.0
Supported by browser,
Not supported by BIRT 1.0
Supported by FO,
Not supported by BIRT 1.0
Row.border*Not supported by browser,
Not supported by BIRT 1.0
Supported by browser,
Not supported by BIRT 1.0
Not supported by FO,
Not supported by BIRT 1.0
Cell.border*SupportedSupportedSupported

Eclipse 3.1

Q: Does BIRT support Eclipse 3.1?

Not yet. Some users have said that they've gotten it to work with the 3.1 milestone or preview builds, but the BIRT team does not yet test with Eclipse 3.1. If you try BIRT on Eclipse 3.1, and find problems, please report them via Bugzilla so the team can fix them. App Servers

Q: What versions of Tomcat does BIRT support?

BIRT is certified with Tomcat 4.1.30. BIRT is not certified, and known problems exist, with the Tomcat 5.0 and 5.5 releases, though these will be fixed before BIRT 1.0 ships. General

Q: Does BIRT keep its data set in memory?

Release 1.0 produces reports on demand, and keeps the entire report (including the data set) in memory. Because reports are on demand, and delivered as a single HTML page, reports in Release 1 will be small.

Later releases will store reports on disk, and will support reports of unlimited size. At that time, the data set will also be written to disk when it becomes too large for memory.

Q: Does BIRT support crosstabs?

This is planned for a future release.

Q: Does BIRT support Java 5 (AKA Java 1.5)?

Not yet. Some users have build BIRT under this version of Java and have reported minor compile problems. The BIRT team does not yet test with Java 5.