Class: MonitoredItems::Store

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

Overview

A Store object is much like a hash but instead of getting an setting keys you get and set instance variables. The following examples are using methods used by the FileMonitor object, however the store object is not limited to these methods.

Example:

s = MonitoredItems::Store.new
s.path = '/tmp'                       # => "/tmp"
s.callback Proc.new {'Hello World'}   # => #<Proc:0x0000000100317508@(irb):18>
s.callback.call                       # => "Hello World"
s.path                                # => "/tmp"

# OR send a hash when initializing the store
i = MonitoredItems::Store.new({:path => '/tmp'})
i.path          #=> "/tmp"

Instance Method Summary collapse

Constructor Details

#initialize(hsh = {}) ⇒ Store

Supports initialization with a hash of methods & values. It makes no difference if the keys of the hash are strings or symbols, but they are case sensitive.



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# File 'lib/FileMonitor/store.rb', line 22

def initialize(hsh = {})
  hsh.map {|k,v| self.send(k, v)} if Hash === hsh
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(mth, arg = Nothing) ⇒ Object

Gets or sets instance variables based upon the methods called.



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# File 'lib/FileMonitor/store.rb', line 27

def method_missing(mth, arg=Nothing)
  # append the @ symbol and remove the equal symbol (if exists):
  mth = "@#{mth}".chomp('=').to_sym
  # get or set instnace variable
  arg == Nothing ? self.instance_variable_get(mth) : self.instance_variable_set(mth, arg)
end

Instance Method Details

#to_h ⇒ Object

Return Hash representation of Store object



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# File 'lib/FileMonitor/store.rb', line 35

def to_h
  Hash[*self.instance_variables.collect {|m| [m.slice(1..-1).to_sym, self.instance_variable_get(m)] }.flatten]
end

#to_s ⇒ Object

Return inspection of hash representation of Store object



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# File 'lib/FileMonitor/store.rb', line 40

def to_s
  self.to_h.inspect
end