Class: StateMachine::Matcher

Inherits:

Object

• Object
• StateMachine::Matcher

Defined in:

lib/state_machine/matcher.rb

Overview

Provides a general strategy pattern for determining whether a match is found for a value. The algorithm that actually determines the match depends on the matcher in use.

Direct Known Subclasses

AllMatcher, BlacklistMatcher, LoopbackMatcher, WhitelistMatcher

Instance Attribute Summary

• #values ⇒ Object readonly

  The list of values against which queries are matched.

Instance Method Summary

• #filter(values) ⇒ Object

  Generates a subset of values that exists in both the set of values being filtered and the values configured for the matcher.

• #initialize(values = []) ⇒ Matcher constructor

  Creates a new matcher for querying against the given set of values.

Constructor Details

#initialize(values = []) ⇒ Matcher

Creates a new matcher for querying against the given set of values

# File 'lib/state_machine/matcher.rb', line 12

def initialize(values = [])
  @values = values.is_a?(Array) ? values : [values] 
end

Instance Attribute Details

#values ⇒ Object (readonly)

The list of values against which queries are matched

# File 'lib/state_machine/matcher.rb', line 9

def values
  @values
end

Instance Method Details

#filter(values) ⇒ Object

Generates a subset of values that exists in both the set of values being filtered and the values configured for the matcher

# File 'lib/state_machine/matcher.rb', line 18

def filter(values)
  self.values & values
end