Class: OpenWFE::LoseExpression

Inherits:
FlowExpression show all
Defined in:
lib/openwfe/expressions/fe_losfor.rb

Overview

Triggers the first (and supposedly unique child of this expression) but never wait for its reply (lose it).

A ‘lose’ expression never replies to its parent expression.

<lose>
    <participant ref="toto" />
</lose>

Useful only some special process cases (like a concurrence expecting only a certain number of replies).

The brother expressions is ‘forget’, but ‘forget’ triggers its child and immediately replies, whereas ‘lose’ doesn’t reply.

Instance Attribute Summary

Attributes inherited from FlowExpression

#apply_time, #attributes, #children, #environment_id, #fei, #parent_id, #raw_representation

Attributes included from Contextual

#application_context

Instance Method Summary collapse

Methods inherited from FlowExpression

#cancel, #clean_children, #delete_variable, #dup_environment, #fetch_environment, #fetch_text_content, #get_binding, #get_environment, #get_parent, #get_root_environment, #has_attribute, #initialize, is_definition, is_definition?, #lookup_attribute, #lookup_attributes, #lookup_boolean_attribute, #lookup_comma_list_attribute, #lookup_downcase_attribute, #lookup_ref, #lookup_string_attribute, #lookup_sym_attribute, #lookup_value, #lookup_variable, #lookup_vf_attribute, names, #new_environment, new_exp, #owns_its_environment?, #paused?, #remove_child, #reply_to_parent, #set_variable, #store_itself, #synchronize, #to_s, #to_yaml_properties

Methods included from Contextual

#get_work_directory, #init_service, #lookup

Methods included from Logging

#ldebug, #ldebug_callstack, #lerror, #lfatal, #linfo, #llog, #lunknown, #lwarn

Methods included from OwfeServiceLocator

#get_engine, #get_error_journal, #get_expool, #get_expression_map, #get_expression_pool, #get_expression_storage, #get_expression_storages, #get_journal, #get_participant_map, #get_scheduler, #get_wfid_generator

Methods inherited from ObjectWithMeta

#class_def, meta_def, meta_eval, metaclass

Constructor Details

This class inherits a constructor from OpenWFE::FlowExpression

Instance Method Details

#apply(workitem) ⇒ Object 



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# File 'lib/openwfe/expressions/fe_losfor.rb', line 65

def apply (workitem)

    get_expression_pool.apply(children[0], workitem) \
        if (@children and @children.length > 0)
end

#reply(workitem) ⇒ Object 



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# File 'lib/openwfe/expressions/fe_losfor.rb', line 71

def reply (workitem)

    get_expression_pool.remove(self)
end