Package com.inductiveautomation.ignition.client.util.gui.tree

Class AbstractLazyLoadingTreeNode<T extends javax.swing.tree.TreeNode>

java.lang.Object

com.inductiveautomation.ignition.client.util.gui.tree.AbstractLazyLoadingTreeNode<T>

All Implemented Interfaces:

javax.swing.tree.TreeNode

public abstract class AbstractLazyLoadingTreeNode<T extends javax.swing.tree.TreeNode>
extends java.lang.Object
implements javax.swing.tree.TreeNode

Tree Node implementation which only populates its children upon demand.

Field Summary

Fields

Modifier and Type	Field	Description
protected javax.swing.tree.TreeNode	parent

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractLazyLoadingTreeNode(javax.swing.tree.TreeNode parent)

Method Summary

Modifier and Type	Method	Description
protected void	checkChildren()
java.util.Enumeration	children()
java.util.Optional<T>	findChild(java.util.function.Predicate<T> predicate)
boolean	getAllowsChildren()
javax.swing.tree.TreeNode	getChildAt(int index)
int	getChildCount()
int	getIndex(javax.swing.tree.TreeNode node)
javax.swing.tree.TreeNode	getParent()
boolean	isLeaf()
protected abstract java.util.List<T>	loadChildren()	This will be called as late a possible for the node to populate its children list.
protected void	setChildren(java.util.List<T> children)

Methods inherited from class java.lang.Object

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

Field Detail

parent

protected javax.swing.tree.TreeNode parent

Constructor Detail

AbstractLazyLoadingTreeNode

protected AbstractLazyLoadingTreeNode(javax.swing.tree.TreeNode parent)

Method Detail

checkChildren

protected void checkChildren()

setChildren

protected void setChildren(java.util.List<T> children)

loadChildren

@Nullable
protected abstract java.util.List<T> loadChildren()

This will be called as late a possible for the node to populate its children list. May return null if there are no children.

findChild

public java.util.Optional<T> findChild(java.util.function.Predicate<T> predicate)

getChildAt

public javax.swing.tree.TreeNode getChildAt(int index)

Specified by:

getChildAt in interface javax.swing.tree.TreeNode

getChildCount

public int getChildCount()

Specified by:

getChildCount in interface javax.swing.tree.TreeNode

getParent

public javax.swing.tree.TreeNode getParent()

Specified by:

getParent in interface javax.swing.tree.TreeNode

getIndex

public int getIndex(javax.swing.tree.TreeNode node)

Specified by:

getIndex in interface javax.swing.tree.TreeNode

getAllowsChildren

public boolean getAllowsChildren()

Specified by:

getAllowsChildren in interface javax.swing.tree.TreeNode

isLeaf

public boolean isLeaf()

Specified by:

isLeaf in interface javax.swing.tree.TreeNode

children

public java.util.Enumeration children()

Specified by:

children in interface javax.swing.tree.TreeNode