Package org.snmp4j.event

Class ResponseEvent

java.lang.Object

java.util.EventObject

org.snmp4j.event.ResponseEvent

All Implemented Interfaces:

Serializable

public class ResponseEvent
extends EventObject

ResponseEvent associates a request PDU with the corresponding response and an optional user object.

Version:

1.1

Author:

Frank Fock

See Also:

• Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor	Description
ResponseEvent(Object source, Address peerAddress, PDU request, PDU response, Object userObject)	Creates an ResponseEvent instance.
ResponseEvent(Object source, Address peerAddress, PDU request, PDU response, Object userObject, Exception error)	Creates an ResponseEvent instance with an exception object indicating a message processing error.

Method Summary

Modifier and Type	Method	Description
Exception	getError()	Gets the exception object from the exception that has been generated when the request processing has failed due to an error.
Address	getPeerAddress()	Gets the transport address of the response sender.
PDU	getRequest()	Gets the request PDU.
PDU	getResponse()	Gets the response PDU.
Object	getUserObject()	Gets the user object that has been supplied to the asynchronous request Session.send(PDU pdu, org.snmp4j.Target target, Object userHandle, ResponseListener listener).
protected final void	setPeerAddress(Address peerAddress)
protected final void	setRequest(PDU request)
protected final void	setResponse(PDU response)
protected final void	setUserObject(Object userObject)

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Constructor Details

ResponseEvent

public ResponseEvent(Object source,
 Address peerAddress,
 PDU request,
 PDU response,
 Object userObject)

Creates an ResponseEvent instance.

Parameters:

source - the event source.

peerAddress - the transport address of the entity that send the response.

request - the request PDU (must not be null).

response - the response PDU or null if the request timed out.

userObject - an optional user object.

ResponseEvent

public ResponseEvent(Object source,
 Address peerAddress,
 PDU request,
 PDU response,
 Object userObject,
 Exception error)

Creates an ResponseEvent instance with an exception object indicating a message processing error.

Parameters:

source - the event source.

peerAddress - the transport address of the entity that send the response.

request - the request PDU (must not be null).

response - the response PDU or null if the request timed out.

userObject - an optional user object.

error - an Exception.

Method Details

getRequest

public PDU getRequest()

Gets the request PDU.

Returns:

a PDU.

setPeerAddress

protected final void setPeerAddress(Address peerAddress)

setRequest

protected final void setRequest(PDU request)

setResponse

protected final void setResponse(PDU response)

getResponse

public PDU getResponse()

Gets the response PDU.

Returns:

a PDU instance if a response has been received. If the request timed out then null will be returned.

setUserObject

protected final void setUserObject(Object userObject)

getUserObject

public Object getUserObject()

Gets the user object that has been supplied to the asynchronous request Session.send(PDU pdu, org.snmp4j.Target target, Object userHandle, ResponseListener listener).

Returns:

an Object.

getError

public Exception getError()

Gets the exception object from the exception that has been generated when the request processing has failed due to an error.

Returns:

an Exception instance.

getPeerAddress

public Address getPeerAddress()

Gets the transport address of the response sender.

Returns:

the transport Address of the command responder that send this response, or null if no response has been received within the time-out interval or if an error occured (see getError()).