uk.ac.ed.epcc.webapp.content

Interface Labeller<T,R>

Type Parameters:

T - type of input object

R - type of return object.

All Superinterfaces:

Targetted<R>

All Known Implementing Classes:

IdLabeller

public interface Labeller<T,R>
extends Targetted<R>

A Labeller is a class that maps values used to classify plot/table data into groups onto s string that should be used to label the group. These can support many to one mappings so classes that use this should combine data that maps to the same label.

See Also:

Transform

Method Summary

Modifier and Type	Method and Description
boolean	accepts(java.lang.Object o) run-time type-check if this labeller can handle an object as input
R	getLabel(AppContext conn, T key) generate the label.

Methods inherited from interface uk.ac.ed.epcc.webapp.Targetted

getTarget

Method Detail

getLabel

R getLabel(AppContext conn,
           T key)

generate the label. Normally this just returns a String but if a non-string object is returned then the toString method is used to generate the label. This is to allow labels with a different sort-order from their string representation

Parameters:

conn - AppContext

key - value to be labelled

Returns:

label object.

accepts

boolean accepts(java.lang.Object o)

run-time type-check if this labeller can handle an object as input

Parameters:

o -

Returns:

boolean