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LucidDB / luciddb

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https://github.com/LucidDB/luciddb
Apache License 2.0
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[FRG-30] enhance ITERATOR calling convention to allow Java iterators to receive a notification on cursor close #840

Open dynamobi-build opened 12 years ago

dynamobi-build commented 12 years ago

[reporter="jvs", created="Fri, 27 Jan 2006 19:59:39 -0500 (GMT-05:00)"] This would be similar to the way we already added the RestartableIterator extension. Without this, iterators like FarragoJavaUdxIterator have to go through contortions in order to avoid becoming resource leaks.

dynamobi-build commented 12 years ago

[author="jvs", created="Sat, 11 Feb 2006 15:31:23 -0500 (GMT-05:00)"] Also support propagation of special "YIELD_ROW" objects which would allow Java iterators to be properly scheduled as ExecStreams.

dynamobi-build commented 12 years ago

[author="jvs", created="Fri, 2 Feb 2007 02:08:34 -0500 (GMT-05:00)"] Stephan already took care of the yield part, but the close part still remains to be fixed. In particular, currently when a UDX is closed without the client draining all of its results, it sees an abort and posts an exception, which is confusing.

dynamobi-build commented 12 years ago

[author="jvs", created="Sat, 17 May 2008 21:41:32 -0500 (GMT-05:00)"] See also FRG-320.