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diff --git a/lib/soap/encodingstyle/handler.rb b/lib/soap/encodingstyle/handler.rb
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+=begin
+SOAP4R - EncodingStyle handler library
+Copyright (C) 2001, 2003 NAKAMURA, Hiroshi.
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+PRATICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 675 Mass
+Ave, Cambridge, MA 02139, USA.
+=end
+
+
+require 'soap/soap'
+require 'soap/baseData'
+require 'soap/element'
+
+
+module SOAP
+module EncodingStyle
+
+
+class Handler
+ @@handlers = {}
+
+ class EncodingStyleError < Error; end
+
+ class << self
+ def uri
+ self::Namespace
+ end
+
+ def handler(uri)
+ @@handlers[uri]
+ end
+
+ def each
+ @@handlers.each do |key, value|
+ yield(value)
+ end
+ end
+
+ private
+
+ def add_handler
+ @@handlers[self.uri] = self
+ end
+ end
+
+ attr_reader :charset
+ attr_accessor :generate_explicit_type
+ def decode_typemap=(complextypes)
+ @decode_typemap = complextypes
+ end
+
+ def initialize(charset)
+ @charset = charset
+ @generate_explicit_type = true
+ @decode_typemap = nil
+ end
+
+ ###
+ ## encode interface.
+ #
+ # Returns a XML instance as a string.
+ def encode_data(buf, ns, qualified, data, parent, indent)
+ raise NotImplementError.new('Method encode_data must be defined in derived class.')
+ end
+
+ def encode_data_end(buf, ns, qualified, data, parent, indent)
+ raise NotImplementError.new('Method encode_data must be defined in derived class.')
+ end
+
+ def encode_prologue
+ end
+
+ def encode_epilogue
+ end
+
+ ###
+ ## decode interface.
+ #
+ # Returns SOAP/OM data.
+ def decode_tag(ns, name, attrs, parent)
+ raise NotImplementError.new('Method decode_tag must be defined in derived class.')
+ end
+
+ def decode_tag_end(ns, name)
+ raise NotImplementError.new('Method decode_tag_end must be defined in derived class.')
+ end
+
+ def decode_text(ns, text)
+ raise NotImplementError.new('Method decode_text must be defined in derived class.')
+ end
+
+ def decode_prologue
+ end
+
+ def decode_epilogue
+ end
+end
+
+
+end
+end