Decisions and Complex Event Processing

 
Thread Tools Search this Thread
Special Forums News, Links, Events and Announcements Complex Event Processing RSS News Decisions and Complex Event Processing
# 1  
Old 12-07-2009
Decisions and Complex Event Processing

by* Claye Greene, Principal Consultant, Technology Blue, Inc. Complex event processing (CEP) continually evolves as a technology to help organizations react to various business conditions such as threats and market opportunities. CEP technologies excel at taking raw, voluminous amounts of event data, accumulating it, correlating it and aggregating it in forms that facilitate critical decision-making. Events are [...]

More...
Login or Register to Ask a Question

Previous Thread | Next Thread
Login or Register to Ask a Question
GStreamer::Event(3pm)					User Contributed Perl Documentation				     GStreamer::Event(3pm)

NAME
GStreamer::Event - Structure describing events that are passed up and down a pipeline DESCRIPTION
The various event types are represented as subclasses: GStreamer::Event::FlushStart GStreamer::Event::FlushStop GStreamer::Event::EOS GStreamer::Event::NewSegment GStreamer::Event::Tag GStreamer::Event::BufferSize GStreamer::Event::QOS GStreamer::Event::Seek GStreamer::Event::Navigation GStreamer::Event::Custom::UP GStreamer::Event::Custom::DS GStreamer::Event::Custom::DS::OOB GStreamer::Event::Custom::Both GStreamer::Event::Custom::Both::OOB To create a new event, you call the constructor of the corresponding class. To check if an event is of a certain type, use the type method: if ($event -> type eq "newsegment") { # ... } elsif ($event -> type eq "eos") { # ... } To get to the content of an event, call the corresponding accessor: if ($event -> type eq "newsegment") { my $update = $event -> update; my $rate = $event -> rate; my $format = $event -> format; my $start_value = $event -> start_value; my $stop_value = $event -> stop_value; my $stream_time = $event -> stream_time; # ... } elsif ($event -> type eq "tag") { my $tag = $event -> tag; # ... } METHODS
structure = $event->get_structure eventtype = $event->type ENUMS AND FLAGS
enum GStreamer::EventType o 'unknown' / 'GST_EVENT_UNKNOWN' o 'flush-start' / 'GST_EVENT_FLUSH_START' o 'flush-stop' / 'GST_EVENT_FLUSH_STOP' o 'eos' / 'GST_EVENT_EOS' o 'newsegment' / 'GST_EVENT_NEWSEGMENT' o 'tag' / 'GST_EVENT_TAG' o 'buffersize' / 'GST_EVENT_BUFFERSIZE' o 'sink-message' / 'GST_EVENT_SINK_MESSAGE' o 'qos' / 'GST_EVENT_QOS' o 'seek' / 'GST_EVENT_SEEK' o 'navigation' / 'GST_EVENT_NAVIGATION' o 'latency' / 'GST_EVENT_LATENCY' o 'step' / 'GST_EVENT_STEP' o 'custom-upstream' / 'GST_EVENT_CUSTOM_UPSTREAM' o 'custom-downstream' / 'GST_EVENT_CUSTOM_DOWNSTREAM' o 'custom-downstream-oob' / 'GST_EVENT_CUSTOM_DOWNSTREAM_OOB' o 'custom-both' / 'GST_EVENT_CUSTOM_BOTH' o 'custom-both-oob' / 'GST_EVENT_CUSTOM_BOTH_OOB' SEE ALSO
GStreamer COPYRIGHT
Copyright (C) 2005-2011 by the gtk2-perl team. This software is licensed under the LGPL. See GStreamer for a full notice. perl v5.14.2 2012-03-01 GStreamer::Event(3pm)