Class: Spout
- Inherits:
-
Object
- Object
- Spout
- Defined in:
- lib/red_storm/proxy/spout.rb
Overview
the Spout class is a proxy to the real spout to avoid having to deal with all the Java artifacts when creating a spout.
The real spout class implementation must define these methods:
-
open(conf, context, collector)
-
next_tuple
-
declare_output_fields
and optionnaly:
-
ack(msg_id)
-
fail(msg_id)
-
close
Instance Method Summary collapse
- #ack(msg_id) ⇒ Object
- #activate ⇒ Object
- #close ⇒ Object
- #deactivate ⇒ Object
- #declareOutputFields(declarer) ⇒ Object
- #fail(msg_id) ⇒ Object
- #getComponentConfiguration ⇒ Object
-
#initialize(base_class_path, real_spout_class_name) ⇒ Spout
constructor
A new instance of Spout.
- #nextTuple ⇒ Object
- #open(conf, context, collector) ⇒ Object
Constructor Details
#initialize(base_class_path, real_spout_class_name) ⇒ Spout
Returns a new instance of Spout.
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# File 'lib/red_storm/proxy/spout.rb', line 36 def initialize(base_class_path, real_spout_class_name) @real_spout = Object.module_eval(real_spout_class_name).new rescue NameError require base_class_path @real_spout = Object.module_eval(real_spout_class_name).new end |
Instance Method Details
#ack(msg_id) ⇒ Object
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# File 'lib/red_storm/proxy/spout.rb', line 69 def ack(msg_id) @real_spout.ack(msg_id) if @real_spout.respond_to?(:ack) end |
#activate ⇒ Object
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# File 'lib/red_storm/proxy/spout.rb', line 54 def activate @real_spout.activate if @real_spout.respond_to?(:activate) end |
#close ⇒ Object
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# File 'lib/red_storm/proxy/spout.rb', line 49 def close @real_spout.close if @real_spout.respond_to?(:close) end |
#deactivate ⇒ Object
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# File 'lib/red_storm/proxy/spout.rb', line 59 def deactivate @real_spout.deactivate if @real_spout.respond_to?(:deactivate) end |
#declareOutputFields(declarer) ⇒ Object
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# File 'lib/red_storm/proxy/spout.rb', line 79 def declareOutputFields(declarer) @real_spout.declare_output_fields(declarer) end |
#fail(msg_id) ⇒ Object
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# File 'lib/red_storm/proxy/spout.rb', line 74 def fail(msg_id) @real_spout.fail(msg_id) if @real_spout.respond_to?(:fail) end |
#getComponentConfiguration ⇒ Object
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# File 'lib/red_storm/proxy/spout.rb', line 84 def getComponentConfiguration @real_spout.get_component_configuration end |
#nextTuple ⇒ Object
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# File 'lib/red_storm/proxy/spout.rb', line 64 def nextTuple @real_spout.next_tuple end |
#open(conf, context, collector) ⇒ Object
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# File 'lib/red_storm/proxy/spout.rb', line 44 def open(conf, context, collector) @real_spout.open(conf, context, collector) end |