class OCI8::BindType::RAW

def self.create(con, val, param, max_array_size)
  case param
  when Hash
    unless param[:length]
      if val.respond_to? :to_str
        val = val.to_str
        param[:length] = val.bytesize
      else
        param[:length] = 400
      end
    end
  when OCI8::Metadata::Base
    param = {:length => param.data_size}
  end
  self.new(con, val, param, max_array_size)
end