org.eclipse.vtp.framework.common.commands
Class ControllerCommand

java.lang.Object
  org.eclipse.vtp.framework.common.commands.ControllerCommand

All Implemented Interfaces:

ICommand

Direct Known Subclasses:

ExitCommand, ForwardCommand, IncludeCommand

public abstract class ControllerCommand
extends java.lang.Object
implements ICommand

Base class for forward, include, and exit commands.

Author:

Lonnie Pryor

Constructor Summary

ControllerCommand()

Method Summary

java.lang.Object

accept(ICommandVisitor visitor) Attempts to invoke an implementation-dependent visit method on the supplied visitor, calling ICommandVisitor.visitUnknown(ICommand) if such a method is not available.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.vtp.framework.spi.ICommand

exportContents, importContents

Constructor Detail

ControllerCommand

public ControllerCommand()

Method Detail

accept

public final java.lang.Object accept(ICommandVisitor visitor)
                              throws java.lang.NullPointerException

Description copied from interface: ICommand

Attempts to invoke an implementation-dependent visit method on the supplied visitor, calling ICommandVisitor.visitUnknown(ICommand) if such a method is not available.

Specified by:

accept in interface ICommand

Parameters:

visitor - The visitor to accept.

Returns:

The value returned by the visitor's visit method.

Throws:

java.lang.NullPointerException - If the supplied visitor is null.