com.mattunderscore.trees.selectors

Class ExtendingNodeSelector<E>

java.lang.Object

com.mattunderscore.trees.selectors.ExtendingNodeSelector<E>

Type Parameters:

E - The element type

All Implemented Interfaces:

NodeSelector<E>

Direct Known Subclasses:

ChildSelector

public abstract class ExtendingNodeSelector<E>
extends Object
implements NodeSelector<E>

A node selector that extends from the nodes of other selectors.

Author:

Matt Champion on 17/09/14.

Constructor Summary

Constructors

Constructor and Description
ExtendingNodeSelector(NodeSelector<E> baseSelector)

Method Summary

Modifier and Type	Method and Description
protected abstract <N extends OpenNode<E,? extends N>> Iterator<? extends N>	getExtendingIterator(N nodeToExtendFrom) Abstract method that is used to take one node returned by the base selector and return an iterator over the extended selection.
<N extends OpenNode<E,? extends N>> Iterator<? extends N>	select(Tree<E,? extends N> tree)

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtendingNodeSelector

public ExtendingNodeSelector(NodeSelector<E> baseSelector)

Method Detail

select

public final <N extends OpenNode<E,? extends N>> Iterator<? extends N> select(Tree<E,? extends N> tree)
                                                                       throws OperationNotSupportedForType

Specified by:

select in interface NodeSelector<E>

Type Parameters:

N - The type of the nodes in the tree

Parameters:

tree - The tree to select from

Returns:

An Iterator over the selected nodes

Throws:

OperationNotSupportedForType - if the type of the tree cannot be iterated

getExtendingIterator

protected abstract <N extends OpenNode<E,? extends N>> Iterator<? extends N> getExtendingIterator(N nodeToExtendFrom)

Abstract method that is used to take one node returned by the base selector and return an iterator over the extended selection.

Type Parameters:

N - The node type

Parameters:

nodeToExtendFrom - The node to extend from

Returns:

An iterator of the extended nodes