com.github.gwtd3.api.functions

Interface DatumFunction<T>

All Known Implementing Classes:

CountFunction, PropertyValueFunction

public interface DatumFunction<T>

A function taking an element and the index of the element in the selection, returning a value of type T.

This function must be passed to mutator functions of Selection when you knows that nodes are not bound to any data.

Author:

Anthony Schiochet

Method Summary

Methods

Modifier and Type	Method and Description
T	apply(com.google.gwt.dom.client.Element context, Value d, int index) Apply the function for the given Element at the specified index of the Selection mapped to the given Datum.

Method Detail

apply

T apply(com.google.gwt.dom.client.Element context,
      Value d,
      int index)

Apply the function for the given Element at the specified index of the Selection mapped to the given Datum.

Note that if no datum is mapped to the element, Datum#isUndefined() will return true.

Parameters:

context - the current element, may be irrelevant or null in some context.

d - the datum

index - the index of the element in the selection

Returns:

a result to be applied