de.carne.util

Class Late<T>

java.lang.Object

de.carne.util.Late<T>

Type Parameters:

T - The managed object type.

public final class Late<T>
extends java.lang.Object

Utility class used to manage late initialized objects.

Constructor Summary

Constructors

Constructor and Description
Late()

Method Summary

Modifier and Type	Method and Description
T	get() Get the hold object.
T	getIfInitialized() Get the hold object if it has been initialized.
T	init(T object) Initialize the hold object.
boolean	isInitialized() Check whether the hold object has already been initialized (by call to init(Object)).
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Late

public Late()

Method Detail

init

public T init(T object)
       throws java.lang.IllegalStateException

Initialize the hold object.

Parameters:

object - The object to set.

Returns:

The initialized object.

Throws:

java.lang.IllegalStateException - If the object has already been initialized.

isInitialized

public boolean isInitialized()

Check whether the hold object has already been initialized (by call to init(Object)).

Returns:

true if the object has already been initialized.

get

public T get()
      throws java.lang.IllegalStateException

Get the hold object.

Returns:

The hold object.

Throws:

java.lang.IllegalStateException - if the object has not yet been initialized.

getIfInitialized

@Nullable
public T getIfInitialized()

Get the hold object if it has been initialized.

Returns:

The hold object or null if it has not yet been initialized.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object