Package com.sun.xml.bind.v2.util

Class CollisionCheckStack<E>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<E>

com.sun.xml.bind.v2.util.CollisionCheckStack<E>

All Implemented Interfaces:

Iterable<E>, Collection<E>, List<E>

public final class CollisionCheckStack<E>
extends AbstractList<E>

Stack-like data structure that allows the following efficient operations:

1. Push/pop operation.
2. Duplicate check. When an object that's already in the stack is pushed, this class will tell you so.

Object equality is their identity equality.

This class implements List for accessing items in the stack, but List methods that alter the stack is not supported.

Author:

Kohsuke Kawaguchi

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Constructors

Constructor	Description
CollisionCheckStack()

Method Summary

Modifier and Type	Method	Description
boolean	findDuplicate(E o)
E	get(int index)
String	getCycleString()	String that represents the cycle.
boolean	getLatestPushResult()
boolean	getUseIdentity()
E	peek()	Returns the top of the stack.
E	pop()	Pops an object from the stack
boolean	push(E o)	Pushes a new object to the stack.
void	pushNocheck(E o)	Pushes a new object to the stack without making it participate with the collision check.
void	reset()	Clears all the contents in the stack.
void	setUseIdentity(boolean useIdentity)	Set to false to use Object.equals(Object) to detect cycles.
int	size()

Methods inherited from class java.util.AbstractList

add, add, addAll, clear, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, remove, removeRange, set, subList

Methods inherited from class java.util.AbstractCollection

addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.List

addAll, contains, containsAll, isEmpty, remove, removeAll, replaceAll, retainAll, sort, spliterator, toArray, toArray

Constructor Details

CollisionCheckStack

public CollisionCheckStack()

Method Details

setUseIdentity

public void setUseIdentity(boolean useIdentity)

Set to false to use Object.equals(Object) to detect cycles. This method can be only used when the stack is empty.

getUseIdentity

public boolean getUseIdentity()

getLatestPushResult

public boolean getLatestPushResult()

push

public boolean push(E o)

Pushes a new object to the stack.

Returns:

true if this object has already been pushed

pushNocheck

public void pushNocheck(E o)

Pushes a new object to the stack without making it participate with the collision check.

findDuplicate

public boolean findDuplicate(E o)

get

public E get(int index)

Specified by:

get in interface List<E>

Specified by:

get in class AbstractList<E>

size

public int size()

Specified by:

size in interface Collection<E>

Specified by:

size in interface List<E>

Specified by:

size in class AbstractCollection<E>

pop

public E pop()

Pops an object from the stack

peek

public E peek()

Returns the top of the stack.

reset

public void reset()

Clears all the contents in the stack.

getCycleString

public String getCycleString()

String that represents the cycle.