org.spf4j.ds

Class SimpleStack<T>

java.lang.Object

org.spf4j.ds.SimpleStackNullSupport<T>

org.spf4j.ds.SimpleStack<T>

Type Parameters:

T -

All Implemented Interfaces:

Iterable<T>, Collection<T>, List<T>

@ParametersAreNonnullByDefault
public final class SimpleStack<T>
extends SimpleStackNullSupport<T>

/** A simple stack implementation that does not support null elements.

Author:

Zoltan Farkas

Constructor Summary

Constructors

Constructor and Description
SimpleStack()
SimpleStack(int size)

Method Summary

Modifier and Type	Method and Description
boolean	contains(Object o) can be overwritten to optimize.
int	indexOf(Object o) Not implemented, can be overwritten.
int	lastIndexOf(Object o) Not implemented, can be overwritten.
T	peek() take a look at the top of stack returns null if there is no element.
T	peekAndPush(T o)
T	pollLast()
void	pushNull() pushes a null on top of stack.
boolean	remove(Object o) Can be overwritten for better implementation.

Methods inherited from class org.spf4j.ds.SimpleStackNullSupport

add, add, addAll, addAll, clear, containsAll, equals, get, getFromPtr, getPtr, hasElements, hashCode, isEmpty, iterator, listIterator, listIterator, peek, peekElemAfter, peekFromTop, peekUntil, pop, pop, popTo, popUntil, push, pushAll, pushAndGetIdx, remove, remove, removeAll, removeFromTop, replaceFromTop, retainAll, set, size, subList, toArray, toArray, toString, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.List

replaceAll, sort, spliterator

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Constructor Detail

SimpleStack

public SimpleStack(int size)

SimpleStack

public SimpleStack()

Method Detail

peek

@Nullable
public T peek()

take a look at the top of stack returns null if there is no element.

Overrides:

peek in class SimpleStackNullSupport<T>

Returns:

Object

peekAndPush

@Nullable
public T peekAndPush(T o)

pollLast

@Nullable
public T pollLast()

remove

public boolean remove(Object o)

Description copied from class: SimpleStackNullSupport

Can be overwritten for better implementation.

Specified by:

remove in interface Collection<T>

Specified by:

remove in interface List<T>

Overrides:

remove in class SimpleStackNullSupport<T>

Parameters:

o - element to remove.

indexOf

public int indexOf(Object o)

Not implemented, can be overwritten.

Specified by:

indexOf in interface List<T>

Overrides:

indexOf in class SimpleStackNullSupport<T>

lastIndexOf

public int lastIndexOf(Object o)

Not implemented, can be overwritten.

Specified by:

lastIndexOf in interface List<T>

Overrides:

lastIndexOf in class SimpleStackNullSupport<T>

contains

public boolean contains(Object o)

Description copied from class: SimpleStackNullSupport

can be overwritten to optimize.

Specified by:

contains in interface Collection<T>

Specified by:

contains in interface List<T>

Overrides:

contains in class SimpleStackNullSupport<T>

pushNull

public void pushNull()

Description copied from class: SimpleStackNullSupport

pushes a null on top of stack. cane be overridden to prohibit operation.

Overrides:

pushNull in class SimpleStackNullSupport<T>