org.dmfs.jems.stack.elementary

Class EmptyStack<Element>

java.lang.Object

org.dmfs.jems.stack.elementary.EmptyStack<Element>

Type Parameters:

Element - The type of the elements this Stack can hold.

All Implemented Interfaces:

Stack<Element>

public final class EmptyStack<Element>
extends java.lang.Object
implements Stack<Element>

A Stack without any elements.

Nested Class Summary

Nested classes/interfaces inherited from interface org.dmfs.jems.stack.Stack

Stack.StackTop<Element>

Constructor Summary

Constructors

Constructor and Description
EmptyStack()

Method Summary

Modifier and Type	Method and Description
Optional<Stack.StackTop<Element>>	top() Retrieves the top of this Stack.

Methods inherited from class java.lang.Object

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

Constructor Detail

EmptyStack

public EmptyStack()

Method Detail

top

public Optional<Stack.StackTop<Element>> top()

Description copied from interface: Stack

Retrieves the top of this Stack. If the stack is empty the Stack.StackTop will be absent.

Specified by:

top in interface Stack<Element>

Returns:

An Optional Stack.StackTop.