Class OpenWFE::ExpExpression

Some kind of limited ‘eval’ expression.

Here is an usage example :

class ExampleDef < OpenWFE::ProcessDefinition

  sequence do

    exp :name => "p0"
    exp :name => "sub0"

    exp :name => "sequence" do
      p0
      sub0
    end

    set :var => "a", :value => { "ref" => "p0" }
    exp :name => "participant", :variable_attributes => "a"
  end

  process_definition :name => "sub0" do
    _print "sub0"
  end
end

This example is a bit static, but the point is that the ‘exp’ is extracting the real expression name (or participant or subprocess name) from its ‘name’ attribute.

The ‘eval’ expression is about evaluating a complete process definition branch, ‘exp’ is only about one node in the process definition.

Methods

public instance

1. apply

protected instance

1. expression_name
2. extract_attributes
3. extract_children
4. extract_parameters