Class: Roby::FilterGenerator

Inherits:

EventGenerator

• Object
• BasicObject
• PlanObject
• EventGenerator
• Roby::FilterGenerator

Defined in:

lib/roby/event.rb

Overview

This generator reemits an event after having changed its context. See EventGenerator#filter for a more complete explanation

Constant Summary

Constants included from Log::EventGeneratorHooks

Log::EventGeneratorHooks::HOOKS

Constants included from Log::BasicObjectHooks

Log::BasicObjectHooks::HOOKS

Instance Attribute Summary

Attributes inherited from EventGenerator

#command, #executable, #pending, #unreachable_handlers

Attributes inherited from PlanObject

#executable, #plan, #removed_at

Attributes inherited from BasicObject

#distribute

Instance Method Summary

• #initialize(user_context, &block) ⇒ FilterGenerator constructor

  A new instance of FilterGenerator.

Methods inherited from EventGenerator

#&, #_dump, _load, #achieve_with, #add_child_object, #call, #call_handlers, #call_without_propagation, #called, #calling, #cancel, #controlable?, #default_command, #delay, #droby_dump, #each_precondition, #emit, #emit_failed, #emit_on, #emit_without_propagation, #emitting, event_gathering, #executable?, #filter, #fired, #forward, #forward_once, #forwarding, gather_events, #if_unreachable, #initialize_copy, #last, #model, #name, #new, #on, #once, #pending?, #postpone, #postponed, #precondition, #pretty_print, #realize_with, #related_events, #related_tasks, remove_event_gathering, #signal, #signal_once, #signalling, #to_event, #unreachable!, #until, #when_unreachable, #|

Methods included from Distributed::DRobyModel::Dump

#droby_dump

Methods included from Distributed::EventNotifications

#fired, #forwarding, #signalling

Methods included from Propagation::EventPrecedenceChanged

#added_child_object, #removed_child_object

Methods included from Log::EventGeneratorHooks

#added_child_object, #called, #calling, #emitting, #fired, #forwarding, #postponed, #removed_child_object, #signalling

Methods inherited from PlanObject

#add_child_object, #apply_relation_changes, child_plan_object, #each_plan_child, #executable?, #finalized?, #forget_peer, #read_write?, #remotely_useful?, #removing_child_object, #replace_by, #replace_subplan_by, #root_object, #root_object?, #subscribed?, #update_on?, #updated_by?

Methods included from Distributed::RelationModificationHooks

#added_child_object, #removed_child_object

Methods included from Transactions::PlanObjectUpdates

#adding_child_object, #removing_child_object

Methods included from DirectedRelationSupport

#add_child_object, #add_parent_object, #check_is_relation, #related_objects, #relations, #remove_child_object, #remove_children, #remove_parent_object, #remove_parents, #remove_relations

Methods inherited from BasicObject

#add_sibling_for, #distribute?, distribute?, #finalized?, #forget_peer, #has_sibling_on?, #initialize_copy, local_only, #read_write?, #remotely_useful?, #remove_sibling_for, #self_owned?, #sibling_of, #sibling_on, #subscribe, #subscribed?, #update_on?, #updated?, #updated_by?, #updated_peers

Methods included from Log::BasicObjectHooks

#added_owner, #removed_owner

Constructor Details

#initialize(user_context, &block) ⇒ FilterGenerator

Returns a new instance of FilterGenerator.

# File 'lib/roby/event.rb', line 756

def initialize(user_context, &block)
    if block && !user_context.empty?
	raise ArgumentError, "you must set either the filter or the value, not both"
    end

    if block
	super() do |context| 
	    context = context.map do |val|
		block.call(val)
	    end
	    emit(*context)
	end
    else
	super() do 
	    emit(*user_context)
	end
    end
end