Class: OpenWFE::RedoExpression

Inherits:
UndoExpression show all
Defined in:
lib/openwfe/expressions/fe_do.rb

Overview

Every expression in OpenWFEru accepts a ‘tag’ attribute. This tag can later be referenced by an ‘undo’ or ‘redo’ expression.

Calling for the undo of a non-existent tag throws no error, the flow simply resumes.

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 UndoExpression

#apply

Methods inherited from FlowExpression

#apply, #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, #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

#process_tag(tag) ⇒ Object 



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# File 'lib/openwfe/expressions/fe_do.rb', line 147

def process_tag (tag)

    ldebug do
        "process_tag() #{fei.to_debug_s} to redo #{tag.fei.to_debug_s}"
    end

    #
    # cancel

    get_expression_pool.cancel(tag.fei)

    #
    # [re]apply

    tag.raw_expression.application_context = @application_context

    get_expression_pool.apply(tag.raw_expression, tag.workitem)
end