am trying to code a java class(plugin) that creates a popupmenuitem that brings multiple attributes of the selected layer on a combobox on openjump. am trying now to do the same as the "ViewAttributePlugIn" so instead of bringing all the attributes, i want to bring only 3 columns on the combobox list so as the user can view the the records of the attribute. what i want to know is where i have to declare my comboBox and populate them is it in the "AttributeTablePanel" class or somewhere else. sorry am not good in java programming and also i find it hard to understand OpenJump philosophy.
plz help me, thanks in advance