Interface Keyed

public interface Keyed

Interface implemented by objects so that they can contribute to the synthetic key for immutable inputs.

Method Summary

Modifier and Type	Method	Description
String	getKey()	Return a string that will be the key or contribute to the key of a view.
static @Nullable String	getKey(@Nullable Object object)	Invoked getKey() on specified parameter if the parameter implements Keyed otherwise return null.

Method Details

getKey

String getKey()

Return a string that will be the key or contribute to the key of a view.

Returns:

the value used to form key.

getKey

static @Nullable String getKey(@Nullable Object object)

Invoked getKey() on specified parameter if the parameter implements Keyed otherwise return null.

Parameters:

object - the object on which to call getKey().

Returns:

the value used to form key, else null.