Interface EventContextKey<T>

Type Parameters:

T - The type of the value stored with this key

All Superinterfaces:

Keyed, ResourceKeyed

@CatalogedBy(EventContextKeys.class)
public interface EventContextKey<T>
extends ResourceKeyed

A key for values in the EventContext.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	EventContextKey.Builder<T>

Method Summary

Modifier and Type	Method	Description
Type	allowedType()	Gets the allowed type for the value of this key.
static EventContextKey.Builder<?>	builder()	Creates a builder to be used for creating a new EventContextKey.
T	cast(Object value)	Cast the provided value to the value type.
boolean	isInstance(Object value)	Return whether the value is an instance of this key's value type.

Methods inherited from interface ResourceKeyed

key

Method Details

builder

static EventContextKey.Builder<?> builder()

Creates a builder to be used for creating a new EventContextKey.

Returns:

The constructed builder

allowedType

Type allowedType()

Gets the allowed type for the value of this key.

This is a concrete type equal to the parameter T

Returns:

The allowed type

isInstance

boolean isInstance(Object value)

Return whether the value is an instance of this key's value type.

Parameters:

value - value to check

Returns:

if instance

cast

T cast(Object value)

Cast the provided value to the value type.

Parameters:

value - value

Returns:

the casted value

Throws:

ClassCastException - if value is not of the correct type