no.digipost.util

Class Attribute<V>

java.lang.Object

no.digipost.util.Attribute<V>

Type Parameters:

V - The type of the object this attribute is mapping.

All Implemented Interfaces:

Serializable, GetsNamedValue<V>, SetsNamedValue<V>

public final class Attribute<V>
extends Object
implements GetsNamedValue<V>, SetsNamedValue<V>, Serializable

An Attribute defines a String-based name (or key) and the type of a value which the name maps to. This construct offers pseudo-typesafe handling where objects of arbitrary types are retrieved by name and must be manually casted.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface no.digipost.util.GetsNamedValue

GetsNamedValue.NotFound

Field Summary

Fields

Modifier and Type	Field and Description
String	name The name of this attribute.

Constructor Summary

Constructors

Constructor and Description
Attribute(String name)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
Optional<V>	getFrom(Function<String,?> getter)
int	hashCode()
void	setOn(BiConsumer<String,? super V> setter, V value)
String	toString()
Attribute<V>	withName(String anotherName) Create a new attribute of the same type with another name.
Tuple<Attribute<V>,V>	withValue(V value) Bundle an attribute with an associated value in a Tuple.

Methods inherited from class java.lang.Object

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

Methods inherited from interface no.digipost.util.GetsNamedValue

getFrom, requireFrom, requireFrom

Methods inherited from interface no.digipost.util.SetsNamedValue

setOn

Field Detail

name

public final String name

The name of this attribute.

Constructor Detail

Attribute

public Attribute(String name)

Method Detail

withName

public Attribute<V> withName(String anotherName)

Create a new attribute of the same type with another name.

Parameters:

anotherName - the name for the new attribute

Returns:

the new attribute instance. If the given name is equal to this attribute's name, the same instance is returned.

See Also:

name

withValue

public Tuple<Attribute<V>,V> withValue(V value)

Bundle an attribute with an associated value in a Tuple.

Parameters:

value - the value to associate with the attribute

Returns:

a tuple containing the attribute and the value.

setOn

public void setOn(BiConsumer<String,? super V> setter,
                  V value)

Specified by:

setOn in interface SetsNamedValue<V>

getFrom

public Optional<V> getFrom(Function<String,?> getter)

Specified by:

getFrom in interface GetsNamedValue<V>

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object