Class NodeIterator

java.lang.Object

com.vladsch.flexmark.util.ast.NodeIterator

All Implemented Interfaces:

ReversibleIterator<Node>, ReversiblePeekingIterator<Node>, Iterator<Node>

public class NodeIterator
extends Object
implements ReversiblePeekingIterator<Node>

Field Summary

Fields

Modifier and Type	Field	Description
static final ReversiblePeekingIterator<Node>	EMPTY
(package private) final Node	firstNode
(package private) final Node	lastNode
(package private) Node	node
(package private) Node	result
(package private) final boolean	reversed

Constructor Summary

Constructors

Constructor	Description
NodeIterator(Node firstNode)
NodeIterator(Node firstNode, boolean reversed)
NodeIterator(Node firstNode, Node lastNode)
NodeIterator(Node firstNode, Node lastNode, boolean reversed)	iterate nodes until null or last node is iterated over

Method Summary

Modifier and Type	Method	Description
void	forEachRemaining(Consumer<? super Node> consumer)
boolean	hasNext()
boolean	isReversed()
Node	next()
@Nullable Node	peek()
void	remove()	Remove the last node returned by next()

Methods inherited from class Object

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

Field Details

firstNode

final Node firstNode

lastNode

final Node lastNode

reversed

final boolean reversed

node

Node node

result

Node result

EMPTY

public static final ReversiblePeekingIterator<Node> EMPTY

Constructor Details

NodeIterator

public NodeIterator(Node firstNode)

Parameters:

firstNode - node from which to start the iteration and continue until all sibling nodes have been traversed

NodeIterator

public NodeIterator(Node firstNode,
 boolean reversed)

Parameters:

firstNode - node from which to start the iteration and continue until all sibling nodes have been traversed

reversed - true/false if the nodes are to be traversed in reverse order. If true the nodes previous sibling will be used instead of next sibling

NodeIterator

public NodeIterator(Node firstNode,
 Node lastNode)

Parameters:

firstNode - node from which to start the iteration and continue until all sibling nodes have been traversed or lastNode has been traversed

lastNode - the last node to be traversed

NodeIterator

public NodeIterator(Node firstNode,
 Node lastNode,
 boolean reversed)

iterate nodes until null or last node is iterated over

Parameters:

firstNode - node from which to start the iteration and continue until all sibling nodes have been traversed or lastNode has been traversed

lastNode - the last node to be traversed

reversed - true/false if the nodes are to be traversed in reverse order. If true the nodes previous sibling will be used instead of next sibling

Method Details

isReversed

public boolean isReversed()

Specified by:

isReversed in interface ReversibleIterator<Node>

Returns:

true if the iterator is a reversed iterator

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<Node>

Returns:

true if there is a next node

next

public Node next()

Specified by:

next in interface Iterator<Node>

Returns:

the next node for the iterator. If the iterator is not reversed then the previous node's next sibling is returned. If it is reversed the the previous node's previous sibling is returned.

peek

@Nullable
public @Nullable Node peek()

Specified by:

peek in interface ReversiblePeekingIterator<Node>

Returns:

the node which would be returned by a call to next() or null if there is no next node.

remove

public void remove()

Remove the last node returned by next()

Specified by:

remove in interface Iterator<Node>

forEachRemaining

public void forEachRemaining(Consumer<? super Node> consumer)

Specified by:

forEachRemaining in interface Iterator<Node>