gnu.mapping

Class Promise<T>

java.lang.Object

gnu.mapping.Promise<T>

All Implemented Interfaces:

Lazy<T>, Printable

public class Promise<T>
extends java.lang.Object
implements Printable, Lazy<T>

Implement Scheme "promises".

Constructor Summary

Constructors

Constructor and Description
Promise(Procedure thunk) Create a new Promise that will evaluate thunk when forced.

Method Summary

Methods

Modifier and Type	Method and Description
static java.lang.Object	force(java.lang.Object arg)
T	getValue()
void	print(Consumer out)

Methods inherited from class java.lang.Object

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

Constructor Detail

Promise

public Promise(Procedure thunk)

Create a new Promise that will evaluate thunk when forced.

Method Detail

getValue

public T getValue()
           throws java.lang.Throwable

Specified by:

getValue in interface Lazy<T>

Throws:

java.lang.Throwable

force

public static java.lang.Object force(java.lang.Object arg)

print

public void print(Consumer out)

Specified by:

print in interface Printable