Package com.petrolpark.util

Class GraphHelper

java.lang.Object

com.petrolpark.util.GraphHelper

public class GraphHelper
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	GraphHelper.CircularReferenceException

Constructor Summary

Constructors

Constructor	Description
GraphHelper()

Method Summary

Modifier and Type	Method	Description
static <T> Set<T>	getAllDescendants(T parent, Function<T,? extends Iterable<? extends T>> childGetter)
static <T> Set<T>	getAllDescendants(T parent, Function<T,? extends Iterable<? extends T>> childGetter, Predicate<T> noChildren)

Methods inherited from class java.lang.Object

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

Constructor Details

GraphHelper

public GraphHelper()

Method Details

getAllDescendants

public static <T> Set<T> getAllDescendants(T parent,
 Function<T,? extends Iterable<? extends T>> childGetter)
                                    throws GraphHelper.CircularReferenceException

Type Parameters:

T - Child and parent

Parameters:

parent -

childGetter - Function that returns direct children of the parent

Returns:

Set of all descendants (not just closest-generation)

Throws:

GraphHelper.CircularReferenceException - If a parent includes itself as a descendant

See Also:

• getAllDescendants(Object, Function, Predicate)

getAllDescendants

public static <T> Set<T> getAllDescendants(T parent,
 Function<T,? extends Iterable<? extends T>> childGetter,
 Predicate<T> noChildren)
                                    throws GraphHelper.CircularReferenceException

Type Parameters:

T - Child and parent

Parameters:

parent -

childGetter - Function that returns direct children of the parent

noChildren - Predicate of objects to not bother checking for further children

Returns:

Set of all descendants (not just closest-generation)

Throws:

GraphHelper.CircularReferenceException - If a parent includes itself as a descendant

See Also:

• getAllDescendants(Object, Function)