Module org.praxislive.core

Package org.praxislive.core.types

Class PReference

java.lang.Object

org.praxislive.core.Value

org.praxislive.core.types.PReference

public final class PReference
extends Value

Nested Class Summary

Nested classes/interfaces inherited from class org.praxislive.core.Value

Value.Type<T extends Value>

Field Summary

Fields

Modifier and Type	Field	Description
static final String	REFERENCE_TYPE
static final String	TYPE_NAME	Value type name.

Method Summary

Modifier and Type	Method	Description
<T> Optional<T>	as(Class<T> cls)
boolean	equals(Object obj)	Values must override the default equals method.
boolean	equivalent(Value arg)	Indicates whether some other Value is equivalent to this one.
static Optional<PReference>	from(Value arg)
int	hashCode()	Values must override the default hashcode method.
static ArgumentInfo	info()
static ArgumentInfo	info(Class<?> clas)
boolean	isEmpty()	Check whether this Value is an empty value and has a zero length string representation.
static PReference	of(Object obj)
String	toString()	Values must override the default method to return a string representation that is immutable.

Methods inherited from class org.praxislive.core.Value

ofObject, type

Methods inherited from class java.lang.Object

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

Field Details

TYPE_NAME

public static final String TYPE_NAME

Value type name.

See Also:

• Constant Field Values

REFERENCE_TYPE

public static final String REFERENCE_TYPE

See Also:

• Constant Field Values

Method Details

as

public <T> Optional<T> as(Class<T> cls)

toString

public String toString()

Description copied from class: Value

Values must override the default method to return a string representation that is immutable.

Specified by:

toString in class Value

Returns:

String representation

hashCode

public int hashCode()

Description copied from class: Value

Values must override the default hashcode method.

Specified by:

hashCode in class Value

Returns:

int hashcode

equals

public boolean equals(Object obj)

Description copied from class: Value

Values must override the default equals method. This method should only return true if the supplied Object is of the same type as the implementing Value. Values of an unknown type should be coerced before calling this method. This method does not have to guarantee that this.equals(that) == this.toString().equals(that.toString())

Specified by:

equals in class Value

Parameters:

obj -

Returns:

boolean

equivalent

public boolean equivalent(Value arg)

Description copied from class: Value

Indicates whether some other Value is equivalent to this one. Unlike Value.equals(java.lang.Object) this method is not symmetric - a value of a different type might be equivalent to this without the other type considering the reverse to be true.

The default implementation uses identity or String equality.

Overrides:

equivalent in class Value

Parameters:

arg - value to test for equivalence

Returns:

true if value is equivalent to this

isEmpty

public boolean isEmpty()

Description copied from class: Value

Check whether this Value is an empty value and has a zero length string representation. Subclasses may wish to override this for efficiency if the String representation is lazily created.

Overrides:

isEmpty in class Value

Returns:

boolean true if empty

of

public static PReference of(Object obj)

from

public static Optional<PReference> from(Value arg)

info

public static ArgumentInfo info()

info

public static ArgumentInfo info(Class<?> clas)