Enum Class View.Type

java.lang.Object

java.lang.Enum<View.Type>

react4j.annotations.View.Type

All Implemented Interfaces:

Serializable, Comparable<View.Type>, Constable

Enclosing class:

View

public static enum View.Type
extends Enum<View.Type>

Enum indicating type of view.

Nested Class Summary

Nested classes/interfaces inherited from class Enum

Enum.EnumDesc<E>

Enum Constant Summary

Enum Constants

Enum Constant	Description
MAYBE_TRACKING	The view is a TRACKING view but it will not generate an invariant failure if a render results in zero Arez dependencies.
NO_RENDER	The view must not have a method annotated with Render.
STATEFUL	The view can store state in fields, can declared lifecycle methods and may contain methods annotated by the ScheduleRender annotation.
TRACKING	The view is a STATEFUL view and will re-render the view if any Arez dependencies change.

Method Summary

Modifier and Type	Method	Description
static View.Type	valueOf(String name)	Returns the enum constant of this class with the specified name.
static View.Type[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

STATEFUL

public static final View.Type STATEFUL

The view can store state in fields, can declared lifecycle methods and may contain methods annotated by the ScheduleRender annotation. The view will be scheduled to re-render if the views container re-renders and any input has changed value from last render. The policy selected by Input.equalityComparator() determines whether an input changed; without an explicit or exact-type default comparator, JavaScript strict equality is used. A view will also be scheduled to re-render if the view invokes a method annotated by the ScheduleRender annotation.

TRACKING

public static final View.Type TRACKING

The view is a STATEFUL view and will re-render the view if any Arez dependencies change. The framework uses the Observe annotation to track Arez dependencies.

MAYBE_TRACKING

public static final View.Type MAYBE_TRACKING

The view is a TRACKING view but it will not generate an invariant failure if a render results in zero Arez dependencies.

NO_RENDER

public static final View.Type NO_RENDER

The view must not have a method annotated with Render. This is useful for "view" instances that provide capabilities or interact with services and thus need not have a render method.

Method Details

values

public static View.Type[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static View.Type valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null