Implementing: javax.print.attribute.Attribute
Get the printing attribute class which is to be used as the "category"
for this printing attribute value.
For class PrinterInfo, the category is class PrinterInfo itself.
Returns: Printing attribute class (category), an instance of class
java.lang.Class
.
Implementing: javax.print.attribute.Attribute
Get the name of the category of which this attribute value is an
instance.
For class PrinterInfo, the category name is "printer-info"
.
Returns: Attribute category name.