www.gusucode.com > bigdata 工具箱 matlab源码程序 > bigdata/+matlab/+bigdata/+internal/Optimizer.m
%Optimizer Base class for Closure graph optimizers % Copyright 2016 The MathWorks, Inc. classdef (Abstract) Optimizer < handle methods (Abstract) % Optimize the execution graphs for a series of tall arrays. Inputs are % partitioned arrays whose underlying execution graphs are modified % in-place. Returns TRUE only if changes were made. tf = optimize(obj, varargin); end methods (Static) function out = default(in) %DEFAULT get or set the default optimizer. % op = Optimizer.default() retrieves the current default % % old = Optimizer.default(new) sets a new default, returning the old % default. persistent DEFAULT if isempty(DEFAULT) DEFAULT = matlab.bigdata.internal.optimizer.FusingOptimizer(); end if nargout out = DEFAULT; end if nargin && ~isempty(in) assert(isa(in, 'matlab.bigdata.internal.Optimizer')); DEFAULT = in; end end end end