extVisitor

Class ExtVisitor

java.lang.Object

extVisitor.ExtVisitor

All Implemented Interfaces:

IExtVisitor

public class ExtVisitor
extends java.lang.Object
implements IExtVisitor

Hashtable (dictionary/"Map")implementation of IExtVisitor

Author:

swong

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.Map<java.lang.String,IExtVisitorCmd>	cmds Dictionary of commands keyed to a String id.
private IExtVisitorCmd	defaultCmd Default command used when unknown case is encountered.
private java.lang.String	name Identifying name for this visitor

Constructor Summary

Constructors

Constructor and Description
ExtVisitor(java.lang.String name) Constructor for the class

Method Summary

Methods

Modifier and Type	Method and Description
void	addCmd(java.lang.String id, IExtVisitorCmd cmd) Add or replace the command associated with the given id.
java.lang.Object	caseAt(java.lang.String id, IHost host, java.lang.Object... params) The parameterized case method that the host calls, handing it its ID.
java.lang.String	toString() Returns a string representation of the visitor, which is its name prepended with "ExtVisitor_".

Methods inherited from class java.lang.Object

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

Field Detail

name

private java.lang.String name

Identifying name for this visitor

cmds

private java.util.Map<java.lang.String,IExtVisitorCmd> cmds

Dictionary of commands keyed to a String id.

defaultCmd

private IExtVisitorCmd defaultCmd

Default command used when unknown case is encountered.

Constructor Detail

ExtVisitor

public ExtVisitor(java.lang.String name)

Constructor for the class

Parameters:

name - The identifying string for the class

Method Detail

caseAt

public java.lang.Object caseAt(java.lang.String id,
                      IHost host,
                      java.lang.Object... params)

Description copied from interface: IExtVisitor

The parameterized case method that the host calls, handing it its ID.

Specified by:

caseAt in interface IExtVisitor

Parameters:

id - The ID of the host

host - The host itself

params - Any parameters the visitor might need to perform its output.

Returns:

The results of the algorithm's operation on the host.

toString

public java.lang.String toString()

Returns a string representation of the visitor, which is its name prepended with "ExtVisitor_".

Overrides:

toString in class java.lang.Object

addCmd

public void addCmd(java.lang.String id,
          IExtVisitorCmd cmd)

Add or replace the command associated with the given id.

Parameters:

id - The id with which to associate the given command

cmd - The command to associate wtih the given key.