Class: OpenWFE::FqvExpression

This expression implementation gathers the ‘f’, ‘q’ and ‘v’ expressions, along with their fullname ‘field’, ‘variable’ and ‘quote’.

These expressions place the value of the corresponding, field, variable or quoted (direct value) in the ‘result’ field of the current workitem.

    sequence do

        set :field => "f0", :value => "fox"
        set :variable => "v0", :value => "vixen"

        set :field => "f1" do
            v "v0"
        end
        set :variable => "v1" do
            f "f0"
        end
        set :variable => "v2" do
            f "f0"
        end
    end

Well, this is perhaps not the best example.

Methods

apply field quote variable

Constants

MAP = { "f" => :field, "q" => :quote, "v" => :variable

Public Instance methods

apply(workitem)

apply / reply

[Source]

    # File lib/openwfe/expressions/fe_fqv.rb, line 84
84:         def apply (workitem)
85: 
86:             name = @fei.expression_name[0, 1]
87:             text = fetch_text_content(workitem)
88: 
89:             method = MAP[name]
90: 
91:             result = self.send(method, text, workitem)
92: 
93:             workitem.set_result(result) if result != nil
94: 
95:             reply_to_parent(workitem)
96:         end

Protected Instance methods

field(text, workitem)

[Source]

     # File lib/openwfe/expressions/fe_fqv.rb, line 106
106:             def field (text, workitem)
107:                 workitem.attributes[text]
108:             end

quote(text, workitem)

[Source]

     # File lib/openwfe/expressions/fe_fqv.rb, line 110
110:             def quote (text, workitem)
111:                 text
112:             end

variable(text, workitem)

[Source]

     # File lib/openwfe/expressions/fe_fqv.rb, line 114
114:             def variable (text, workitem)
115:                 self.lookup_variable(text)
116:             end