org.infinispan.commons.configuration.attributes

Class Attribute<T>

java.lang.Object

org.infinispan.commons.configuration.attributes.Attribute<T>

All Implemented Interfaces:

Cloneable, Matchable<Attribute<?>>

public final class Attribute<T>
extends Object
implements Cloneable, Matchable<Attribute<?>>

Attribute. This class implements a configuration attribute value holder. A configuration attribute is defined by an AttributeDefinition. An attribute contains an optional value (or defers to its AttributeDefinition for the default value). It is possible to determine whether a value has been changed with respect to its initial value. An Attribute remains modifiable until it is protected. At which point it can only be modified if its AttributeDefinition allows it to be mutable. Additionally it is possible to register listeners when values change so that code can react to these changes.

Since:

7.2

Author:

Tristan Tarrant

Field Summary

Fields

Modifier and Type	Field and Description
protected T	value

Method Summary

Modifier and Type	Method and Description
void	addListener(AttributeListener<T> listener)
<K> K	asObject()
protected Attribute<T>	clone()
T	computeIfAbsent(Supplier<T> supplier)
boolean	equals(Object obj)
T	get()
AttributeDefinition<T>	getAttributeDefinition()
T	getInitialValue()
int	hashCode()
boolean	isImmutable()
boolean	isModified()
boolean	isNull()
boolean	isPersistent()
boolean	matches(Attribute<?> other) Compares this attribute to another attribute taking into account the AttributeDefinition.isGlobal() flag.
String	name()
Attribute<T>	protect()
void	read(Attribute<T> other)
void	removeListener(AttributeListener<T> listener)
void	reset()
void	set(T value)
String	toString()
void	validate()

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

value

protected T value

Method Detail

name

public String name()

get

public T get()

getInitialValue

public T getInitialValue()

validate

public void validate()

protect

public Attribute<T> protect()

set

public void set(T value)

computeIfAbsent

public T computeIfAbsent(Supplier<T> supplier)

isImmutable

public boolean isImmutable()

isPersistent

public boolean isPersistent()

isModified

public boolean isModified()

asObject

public <K> K asObject()

addListener

public void addListener(AttributeListener<T> listener)

removeListener

public void removeListener(AttributeListener<T> listener)

isNull

public boolean isNull()

getAttributeDefinition

public AttributeDefinition<T> getAttributeDefinition()

clone

protected Attribute<T> clone()

Overrides:

clone in class Object

read

public void read(Attribute<T> other)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

matches

public boolean matches(Attribute<?> other)

Compares this attribute to another attribute taking into account the AttributeDefinition.isGlobal() flag. If the attribute is global, then this method will return true only if the values are identical. If the attribute is local, then this method will return true even if the values don't match. Essentially, this method only ensures that the attribute definitions are equals.

Specified by:

matches in interface Matchable<Attribute<?>>

Parameters:

other -

Returns:

toString

public String toString()

Overrides:

toString in class Object

reset

public void reset()