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#--
# =============================================================================
# Copyright (c) 2004, Jamis Buck (jgb3@email.byu.edu)
# All rights reserved.
#
# This source file is distributed as part of the Needle dependency injection
# library for Ruby. This file (and the library as a whole) may be used only as
# allowed by either the BSD license, or the Ruby license (or, by association
# with the Ruby license, the GPL). See the "doc" subdirectory of the Needle
# distribution for the texts of these licenses.
# -----------------------------------------------------------------------------
# needle website : http://needle.rubyforge.org
# project website: http://rubyforge.org/projects/needle
# =============================================================================
#++
require 'needle/interceptor-chain'
require 'needle/pipeline/element'
module Needle
module Pipeline
# The pipeline element that implements adding interceptors to a service.
class InterceptorElement < Element
set_default_priority 0
# The array of interceptors to be proxied onto the object.
attr_reader :interceptors
# Initializes the array of interceptors. It is initially empty.
def initialize_element
@interceptors = []
end
# Invokes the next element in the chain and adds the interceptors to
# the result, returning a proxy object wrapped by the interceptors.
def call( container, point, *args )
service = succ.call( container, point, *args )
InterceptorChainBuilder.build( point, service, @interceptors )
end
end
end
end
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