Package com.yahoo.messagebus.routing

Class RoutingTable

java.lang.Object

com.yahoo.messagebus.routing.RoutingTable

public class RoutingTable
extends Object

At any time there may only ever be zero or one routing table registered in message bus for each protocol. This class contains a list of named hops and routes that may be used to substitute references to these during route resolving.

Author:

Simon Thoresen Hult

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	RoutingTable.HopIterator	Implements an iterator for the hops of this.
static class	RoutingTable.RouteIterator	Implements an iterator for the routes of this.

Constructor Summary

Constructors

Constructor	Description
RoutingTable(RoutingTableSpec spec)	Creates a new routing table based on a given specification.

Method Summary

Modifier and Type	Method	Description
HopBlueprint	getHop(String name)	Returns the named hop, may be null.
RoutingTable.HopIterator	getHopIterator()	Returns an iterator for the hops of this table.
int	getNumHops()	Returns the number of hops that are contained in this.
int	getNumRoutes()	Returns the number of routes that are contained in this.
Route	getRoute(String name)	Returns the named route, may be null.
RoutingTable.RouteIterator	getRouteIterator()	Returns an iterator for the routes of this table.
boolean	hasHop(String name)	Returns whether or not there exists a named hop in this.
boolean	hasHops()	Returns whether or not there are any hops in this routing table.
boolean	hasRoute(String name)	Returns whether or not there exists a named route in this.
boolean	hasRoutes()	Returns whether or not there are any routes in this routing table.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

RoutingTable

public RoutingTable(RoutingTableSpec spec)

Creates a new routing table based on a given specification. This also verifies the integrity of the table.

Parameters:

spec - The specification to use.

Method Detail

hasHops

public boolean hasHops()

Returns whether or not there are any hops in this routing table.

Returns:

True if there is at least one hop.

getNumHops

public int getNumHops()

Returns the number of hops that are contained in this.

Returns:

The number of hops.

getHopIterator

public RoutingTable.HopIterator getHopIterator()

Returns an iterator for the hops of this table.

Returns:

An iterator.

getRouteIterator

public RoutingTable.RouteIterator getRouteIterator()

Returns an iterator for the routes of this table.

Returns:

An iterator.

hasRoutes

public boolean hasRoutes()

Returns whether or not there are any routes in this routing table.

Returns:

True if there is at least one route.

getNumRoutes

public int getNumRoutes()

Returns the number of routes that are contained in this.

Returns:

The number of routes.

hasHop

public boolean hasHop(String name)

Returns whether or not there exists a named hop in this.

Parameters:

name - The name of the hop to look for.

Returns:

True if the named hop exists.

getHop

public HopBlueprint getHop(String name)

Returns the named hop, may be null.

Parameters:

name - The name of the hop to return.

Returns:

The hop implementation object.

hasRoute

public boolean hasRoute(String name)

Returns whether or not there exists a named route in this.

Parameters:

name - The name of the route to look for.

Returns:

True if the named route exists.

getRoute

public Route getRoute(String name)

Returns the named route, may be null.

Parameters:

name - The name of the route to return.

Returns:

The route implementation object.

toString

public String toString()

Overrides:

toString in class Object