Customize PointLabels in PrimeFaces chart

Question

Need some reference to customize the pointLabels in a PrimeFaces redered chart, I'm already using the property of setShowPointLabels as true in my Java Class, but it actually gives me no parameter to customize directly the point labels generated by jqPlot, just the property of show as true, but not the actual values displayed on the chart in the point labels.

To recover the point labels instance of the chart, I'm using:

var points = this.cfg.seriesDefaults.pointLabels;

Getting this value:

Object {
  hideZeros: true,
  show: true,
  __proto__: Object
}

There is some way that I can customize these point labels recovering the displayed values directly on jqPlot or setting it on the Managed Bean?