org.opennms.features.topology.app.internal.menu

Class NavigationMenuItem

java.lang.Object

org.opennms.features.topology.app.internal.menu.AbstractMenuItem

org.opennms.features.topology.app.internal.menu.NavigationMenuItem

All Implemented Interfaces:

Comparable<MenuItem>, MenuItem

public class NavigationMenuItem
extends AbstractMenuItem

Menu item to allow navigation to target vertices from a specific source vertex.

Constructor Summary

Constructors

Constructor and Description
NavigationMenuItem(GraphProvider targetGraphProvider, VertexRef sourceVertex)

Method Summary

Modifier and Type	Method and Description
MenuCommand	getCommand() Returns the command to execute if the MenuItem is selected.
boolean	isChecked(List<VertexRef> targets, OperationContext operationContext) Defines if the current MenuItem is checked.
boolean	isEnabled(List<VertexRef> targets, OperationContext operationContext) Defines if the current MenuItem is enabled.
boolean	isVisible(List<VertexRef> targets, OperationContext operationContext) Defines if the current MenuItem is visible.

Methods inherited from class org.opennms.features.topology.app.internal.menu.AbstractMenuItem

addChildren, getChildren, getLabel, getOrder, isCheckable, setCheckable, setLabel, setOrder

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.opennms.features.topology.app.internal.menu.MenuItem

compareTo

Constructor Detail

NavigationMenuItem

public NavigationMenuItem(GraphProvider targetGraphProvider,
                          VertexRef sourceVertex)

Method Detail

getCommand

public MenuCommand getCommand()

Description copied from interface: MenuItem

Returns the command to execute if the MenuItem is selected. Please Note, that it MUST return null if MenuItem.getChildren() is NOT empty.

Returns:

the command to execute if the MenuItem is selected, or null if MenuItem.getChildren() is NOT empty.

isChecked

public boolean isChecked(List<VertexRef> targets,
                         OperationContext operationContext)

Description copied from interface: MenuItem

Defines if the current MenuItem is checked. If MenuItem.isCheckable() returns false, this is never called.

Parameters:

targets - The current targets (e.g. the selection)

operationContext - The current OperationContext.

Returns:

True if it is checked, false otherwise.

isVisible

public boolean isVisible(List<VertexRef> targets,
                         OperationContext operationContext)

Description copied from interface: MenuItem

Defines if the current MenuItem is visible.

Parameters:

targets - The current targets (e.g. the selection)

operationContext - The current OperationContext.

Returns:

True if visible, false otherwise.

isEnabled

public boolean isEnabled(List<VertexRef> targets,
                         OperationContext operationContext)

Description copied from interface: MenuItem

Defines if the current MenuItem is enabled. If MenuItem.isVisible(List, OperationContext) returns false, this is never called.

Parameters:

targets - The current targets (e.g. the selection)

operationContext - The current OperationContext.

Returns:

True if enabled, false otherwise.