Class: Amalgalite::TraceTap

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

Overview

A TraceTap receives tracing information from SQLite3. It receives the SQL statement being executed as a msg just before the statement first begins executing.

A TraceTap is a wrapper around another object and a method. The Tap object will receive the call to trace and redirect that call to another object and method.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(wrapped_obj, send_to = 'trace') ⇒ TraceTap

Returns a new instance of TraceTap.



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# File 'lib/amalgalite/trace_tap.rb', line 21

def initialize( wrapped_obj, send_to = 'trace' )
  unless wrapped_obj.respond_to?( send_to )
    raise Amalgalite::Error, "#{wrapped_obj.class.name} does not respond to #{send_to.to_s} "
  end

  @delegate_obj = wrapped_obj
  @delegate_method = send_to
end

Instance Attribute Details

#delegate_method ⇒ Object (readonly)

Returns the value of attribute delegate_method.



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# File 'lib/amalgalite/trace_tap.rb', line 19

def delegate_method
  @delegate_method
end

#delegate_obj ⇒ Object (readonly)

Returns the value of attribute delegate_obj.



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# File 'lib/amalgalite/trace_tap.rb', line 18

def delegate_obj
  @delegate_obj
end

Instance Method Details

#trace(msg) ⇒ Object 



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# File 'lib/amalgalite/trace_tap.rb', line 30

def trace( msg )
  delegate_obj.send( delegate_method, msg )
end