There are new releases of ARQ and TDB.
2 new features in these releases are query abort from any thread and
query timeout.
Query Abort: A query can be cancelled from any thread - previously the
thread dealing with query results had to abort the query. Now a query
can be abort during a query operation. The abort happens when the query
engine subsystem can process it.
Query timeout: New operations on a QueryExecution allows a query to have
a timeout. When the timeout occurs, the next operation on a query
result object will throw a QueryCancelledException exception.
These releases also make it possible to release Fuseki 0.2.0 using
released versions of ARQ and TDB. Also, internal rearchitecting in TDB
can commence in support of adding ACID transactions to TDB.
Andy
Notes:
Query timeout has not been implemented for HTTP remote queries yet.
Please feel free to submit a patch to Jena's JIRA on Apache. The
feature is JENA-56.
https://issues.apache.org/jira/browse/JENA-56
Downloads:
ARQ:
http://sourceforge.net/projects/jena/files/ARQ/ARQ-2.8.8/arq-2.8.8.zip/download
TDB:
http://sourceforge.net/projects/jena/files/TDB/TDB-0.8.10/tdb-0.8.10.zip/download
and in the maven repositories (mirrored within 24 hours)
Maven details:
http://www.openjena.org/repo/com/hp/hpl/jena/arq/2.8.8/
<dependency>
<groupId>com.hp.hpl.jena</groupId>
<artifactId>arq</artifactId>
<version>2.8.8</version>
</dependency>
http://www.openjena.org/repo/com/hp/hpl/jena/tdb/0.8.10/
<dependency>
<groupId>com.hp.hpl.jena</groupId>
<artifactId>tdb</artifactId>
<version>0.8.10</version>
</dependency>
<repository>
<id>repo-jena</id>
<name>Jena Maven - Repository</name>
<layout>default</layout>
<url>http://openjena.org/repo</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
