de.caff.generics

Class CopierFStackImpl.Empty<T>

java.lang.Object

de.caff.generics.CopierFStackImpl.Empty<T>

Type Parameters:

T - element type

All Implemented Interfaces:

FStack<T>, Sizeable, java.lang.Iterable<T>

Enclosing class:

CopierFStackImpl<T>

static class CopierFStackImpl.Empty<T>
extends java.lang.Object
implements FStack<T>

Empty copier stack implementation.

Field Summary

Fields inherited from interface de.caff.generics.Sizeable

NULL

Constructor Summary

Constructors

Constructor and Description
Empty(Copier<T> copier) Constructor.

Method Summary

Modifier and Type	Method and Description
java.lang.Iterable<T>	bottomToTop() Get an iterable from this stack which is ordered from bottom to top.
boolean	equals(java.lang.Object obj)
int	hashCode()
boolean	isEmpty() Is this stack empty?
FStack<T>	pop() Pop the stack.
FStack<T>	push(T elem) Push an element to the top of the stack.
FStack<T>	reversed() Get this stack, but in reversed order.
int	size() Get the size.
T	top() Get the top element of the stack.

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.caff.generics.FStack

areEqual, areEqual, empty, empty, emptyCopyable, from, from, fromCopyable, iterator, pushAll, reverseFrom, reverseFrom, reverseFromCopyable, reversePushAll

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

Empty

public Empty(@NotNull
             Copier<T> copier)

Constructor.

Parameters:

copier - copier of this item

Method Detail

top

public T top()

Description copied from interface: FStack

Get the top element of the stack.

Specified by:

top in interface FStack<T>

Returns:

top element

push

@NotNull
public FStack<T> push(T elem)

Description copied from interface: FStack

Push an element to the top of the stack. This will not change this stack but return a new stack with the given element at the FStack.top().

Specified by:

push in interface FStack<T>

Parameters:

elem - element to push to the stack

Returns:

new stack with elem at the top and the same elements as this stack below it

pop

@NotNull
public FStack<T> pop()

Description copied from interface: FStack

Pop the stack. This will remove the top-most element from the stack and return a new stack without it.

Specified by:

pop in interface FStack<T>

Returns:

a new stack without the top element of this stack

bottomToTop

@NotNull
public java.lang.Iterable<T> bottomToTop()

Description copied from interface: FStack

Get an iterable from this stack which is ordered from bottom to top.

Specified by:

bottomToTop in interface FStack<T>

Returns:

bottom-to-top-ordered iterable

See Also:

FStack.reversed()

reversed

@NotNull
public FStack<T> reversed()

Description copied from interface: FStack

Get this stack, but in reversed order.

Specified by:

reversed in interface FStack<T>

Returns:

this stack in reverse order

isEmpty

public boolean isEmpty()

Description copied from interface: FStack

Is this stack empty? An empty stack does not have a top element, therefore FStack.top() and FStack.pop() are not allowed and will result in EmptyStackExceptions

Specified by:

isEmpty in interface FStack<T>

Returns:

size

public int size()

Description copied from interface: Sizeable

Get the size. Size is never negative.

Specified by:

size in interface Sizeable

Returns:

the size of this object, usually the number of contained elements, must not be negative

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object