Class: Zookeeper::Callbacks::Base

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

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Base

Returns a new instance of Base.



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# File 'lib/zookeeper/callbacks.rb', line 22

def initialize
  @completed = false
  @proc = Proc.new do |hash|
    initialize_context(hash)
    yield if block_given?
    @completed = true
  end
end

Instance Attribute Details

#completed ⇒ Object (readonly)

Returns the value of attribute completed.



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# File 'lib/zookeeper/callbacks.rb', line 4

def completed
  @completed
end

#context ⇒ Object (readonly)

Returns the value of attribute context.



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# File 'lib/zookeeper/callbacks.rb', line 4

def context
  @context
end

#proc ⇒ Object (readonly)

Returns the value of attribute proc.



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# File 'lib/zookeeper/callbacks.rb', line 4

def proc
  @proc
end

Class Method Details

.create ⇒ Object

allows for easier construction of a user callback block that will be called with the callback object itself as an argument.

Examples:


Base.create do |cb|
  puts "watcher callback called with argument: #{cb.inspect}"
end

"watcher callback called with argument: #<Zookeeper::Callbacks::Base:0x1018a3958 @state=3, @type=1, ...>"


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# File 'lib/zookeeper/callbacks.rb', line 18

def self.create
  cb_inst = new { yield cb_inst }
end

Instance Method Details

#call(*args) ⇒ Object 



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# File 'lib/zookeeper/callbacks.rb', line 31

def call(*args)
  @proc.call(*args)
end

#completed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/zookeeper/callbacks.rb', line 35

def completed?
  @completed
end

#initialize_context(hash) ⇒ Object 



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# File 'lib/zookeeper/callbacks.rb', line 39

def initialize_context(hash)
  @context = nil
end