Class: BaseEnvelope

Inherits:
Object
  • Object
show all
Defined in:
lib/envelope.rb

Overview

A BaseEnvelope provides a means to keep and provide a count of objects that have been added to an envelope.

Direct Known Subclasses

Envelope

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ BaseEnvelope

Returns a new instance with no values added.



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# File 'lib/envelope.rb', line 34

def initialize
  @count = 0
end

Instance Attribute Details

#count ⇒ Object (readonly)

count of added values reader.



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# File 'lib/envelope.rb', line 31

def count
  @count
end

Instance Method Details

#raise_no_compare(value = nil) ⇒ Object

Called when the value cannot be compared with the the boundaries of the instance.

Raises:



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# File 'lib/envelope.rb', line 24

def raise_no_compare(value=nil)
  value = "'#{value}' " unless value == nil
  raise EnvelopeException,
    "The value #{value}cannot be compared with the envelope"
end

#raise_no_envelope ⇒ Object

Called when requesting envelope bounderies before any values have been added.

Raises:



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# File 'lib/envelope.rb', line 18

def raise_no_envelope
  raise EnvelopeException, "No values are enveloped"
end