edu.stanford.nlp.util

Class Pointer<T>

java.lang.Object

edu.stanford.nlp.util.Pointer<T>

All Implemented Interfaces:

java.io.Serializable

public class Pointer<T>
extends java.lang.Object
implements java.io.Serializable

A pointer to an object, to get around not being able to access non-final variables within an anonymous function.

Author:

Gabor Angeli

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Pointer() Create a pointer pointing nowhere.
Pointer(T impl) Create a pointer pointing at the given object.

Method Summary

Modifier and Type	Method and Description
java.util.Optional<T>	dereference() Dereference the pointer.
void	set(java.util.Optional<T> impl) Set the pointer to a possible value.
void	set(T impl) Set the pointer.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Pointer

public Pointer()

Create a pointer pointing nowhere.

Pointer

public Pointer(T impl)

Create a pointer pointing at the given object.

Parameters:

impl - The object the pointer is pointing at.

Method Detail

dereference

public java.util.Optional<T> dereference()

Dereference the pointer. If the pointer is pointing somewhere, the optional will be set. Otherwise, the optional will be empty.

set

public void set(T impl)

Set the pointer.

Parameters:

impl - The value to set the pointer to. If this is null, the pointer is unset.

set

public void set(java.util.Optional<T> impl)

Set the pointer to a possible value.

Parameters:

impl - The value to set the pointer to. If this is empty, the pointer is unset.