com.hp.of.lib.msg

Class OfmMutableHello

java.lang.Object

com.hp.nbio.AbstractMessage

com.hp.of.lib.msg.OpenflowMessage

com.hp.of.lib.msg.OfmHello

com.hp.of.lib.msg.OfmMutableHello

All Implemented Interfaces:

Message, MutableMessage, MutableObject, Structure

public class OfmMutableHello
extends OfmHello
implements MutableMessage

Mutable subclass of OfmHello.

Author:

Simon Hunt

Field Summary

Fields inherited from class com.hp.nbio.AbstractMessage

length

Method Summary

Methods

Modifier and Type	Method and Description
OfmMutableHello	addElement(HelloElement element) Adds the specified hello element to this HELLO message.
void	clearXid() Clears the transaction ID field of this message (sets it to 0).
OpenflowMessage	toImmutable() Returns an immutable instance of this message.
String	toString()
boolean	writable() Returns true if this mutable object is still writable.

Methods inherited from class com.hp.of.lib.msg.OfmHello

getElements, toDebugString

Methods inherited from class com.hp.of.lib.msg.OpenflowMessage

decodeHeader, getType, getVersion, getXid, hex, hex, length, validate

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.hp.of.lib.msg.Message

getType, getXid

Methods inherited from interface com.hp.of.lib.Structure

getVersion, toDebugString

Method Detail

clearXid

public void clearXid()

Description copied from interface: MutableMessage

Clears the transaction ID field of this message (sets it to 0). This is provided for unit testing purposes, only.

Specified by:

clearXid in interface MutableMessage

toImmutable

public OpenflowMessage toImmutable()

Description copied from interface: MutableMessage

Returns an immutable instance of this message. In essence, converts this message to be read-only.

It is expected that the reference to this mutable message will be dropped. Note that all method calls invoked on a MutableMessage after toImmutable() has been invoked will result in an InvalidMutableException being thrown.

Specified by:

toImmutable in interface MutableMessage

Returns:

an immutable instance of this message.

writable

public boolean writable()

Description copied from interface: MutableObject

Returns true if this mutable object is still writable. That is, the #toImmutable() method (defined on a sub-interface) has not yet been invoked.

Specified by:

writable in interface MutableObject

Returns:

true if this mutable object is still writable

toString

public String toString()

Overrides:

toString in class OfmHello

addElement

public OfmMutableHello addElement(HelloElement element)

Adds the specified hello element to this HELLO message.

Parameters:

element - the element to add

Returns:

self, for chaining

Throws:

InvalidMutableException - if this instance is no longer writable

NullPointerException - if element is null