code: private void loadMethod() {
  
  		// load method with information from format string
  		if (StringUtils.isNotBlank(this.format)) {
  
  			final String[] parts = this.format.split(",");
  			if (parts.length == 2) {
  
  				final String fqcn       = parts[0].trim();
  				final String methodName = parts[1].trim();
  
  				try {
  
  					final Class type = Class.forName(fqcn);
  					this.method      = type.getMethod(methodName);
  
  				} catch (Throwable t) {
  					t.printStackTrace();
  				}
  			}
  		}
  	}
docs: ----- private methods -----