uk.co.strangeskies.fx

Interface TreeChildContribution<T>

Type Parameters:

T - the type of the tree item data

All Superinterfaces:

TreeContribution<T>

public interface TreeChildContribution<T>
extends TreeContribution<T>

A type of contribution for items in a ModularTreeView.

Method Summary

Modifier and Type	Method and Description
<U extends T> java.util.stream.Stream<TypedObject<?>>	getChildren(TreeItemData<U> data) Determine which children should be contributed to the given data item.
<U extends T> boolean	hasChildren(TreeItemData<U> data) Determine whether children should be contributed to the given data item.

Methods inherited from interface uk.co.strangeskies.fx.TreeContribution

appliesTo, getDataType

Method Detail

hasChildren

<U extends T> boolean hasChildren(TreeItemData<U> data)

Determine whether children should be contributed to the given data item. This should given the same result as Collection.isEmpty() invoked on the result of getChildren(TreeItemData), but may be more efficient to implement.

Type Parameters:

U - the specific type of the tree item

Parameters:

data - a data item in the tree

Returns:

true if children should be contributed, false otherwise

getChildren

<U extends T> java.util.stream.Stream<TypedObject<?>> getChildren(TreeItemData<U> data)

Determine which children should be contributed to the given data item.

Type Parameters:

U - the specific type of the tree item

Parameters:

data - a data item in the tree

Returns:

a list of children to be contributed