% SETB Set the property 'b'
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DESCRIPTION: SETB Set the property 'b'
%
% CALL:        obj = obj.setB(12);
%              obj = setB(obj, 12);
%
% INPUTS:      obj - is a miir object
%
% <a href="matlab:utils.helper.displayMethodInfo('miir', 'setB')">Parameters Description</a>
%
% VERSION:     $Id: setB.m,v 1.9 2011/04/08 08:56:33 hewitson Exp $
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

function varargout = setB(varargin)
  
  % Check if this is a call from a class method
  callerIsMethod = utils.helper.callerIsMethod;
  
  %%% Check if this is a call for parameters
  if utils.helper.isinfocall(varargin{:})
    varargout{1} = getInfo(varargin{3});
    return
  end
  
  obj = varargin{1};
  val = varargin{2};
  
  %%% Check inputs
  if numel(obj) > 1
    error('### This method supports only one input filter');
  end
  
  %%% If val is a plist-object then get the value out of the plist
  if isa(val, 'plist')
    val = find(val, 'b');
  end
  
  %%% decide whether we modify the miir-object, or create a new one.
  obj = copy(obj, nargout);
  
  %%% set 'b'
  obj.b = val;
  
  if ~callerIsMethod
    obj.addHistory(getInfo('None'), plist('b', val), '', obj.hist);
  end
  
  varargout{1} = obj;
end

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                               Local Functions                               %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% FUNCTION:    getInfo
%
% DESCRIPTION: Get Info Object
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

function ii = getInfo(varargin)
  if nargin == 1 && strcmpi(varargin{1}, 'None')
    sets = {};
    pl   = [];
  else
    sets = {'Default'};
    pl   = getDefaultPlist;
  end
  % Build info object
  ii = minfo(mfilename, mfilename('class'), 'ltpda', utils.const.categories.helper, '$Id: setB.m,v 1.9 2011/04/08 08:56:33 hewitson Exp $', sets, pl);
end

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% FUNCTION:    getDefaultPlist
%
% DESCRIPTION: Get Default Plist
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

function plout = getDefaultPlist()
  persistent pl;
  if exist('pl', 'var')==0 || isempty(pl)
    pl = buildplist();
  end
  plout = pl;
end

function pl = buildplist()
  pl = plist({'b', 'A set of denominator coefficients.'}, paramValue.EMPTY_DOUBLE);
end