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## uk.co.westhawk.snmp.stack
Class TrapPduv2

    java.lang.Object
      |
      +--java.util.Observable
            |
            +--uk.co.westhawk.snmp.stack.Pdu
                  |
                  +--uk.co.westhawk.snmp.stack.TrapPduv2

Direct Known Subclasses:
  OneTrapPduv2, PassiveTrapPduv2

public class TrapPduv2
extends Pdu

This class represents the ASN SNMP v2c (and higher) Trap PDU object. This PDU is not supported in SNMPv1.

See SNMPv2-PDU;
The variable bindings list contains the following pairs of object names and values:

- sysUpTime.0 (SNMPv2-MIB)
- snmpTrapOID.0: part of the trap group in the SNMPv2 MIB (SNMPv2-MIB)
- If the OBJECTS clause is present in the corresponding invocation of the macro NOTIFICATION-TYPE, then each corresponding variable and its value are copied to the variable-bindings field.
- Additional variables may be included at the option of the agent.

For SNMPv3: The sender of a trap PDU acts as the authoritative engine.

Version:
  $Revision: 3.11 $ $Date: 2006/03/23 14:54:10 $
Author:
  Birgit Arkesteijn
See Also:
  `TrapPduv1`

Field Summary

Fields inherited from class uk.co.westhawk.snmp.stack.Pdu
`added, answered, context, encodedPacket, errind, errstat, msg_type, reqVarbinds, respVarbinds, snmpv3MsgId`

Constructor Summary
`TrapPduv2(SnmpContextBasisFace con)` Constructor.

Method Summary
`protected boolean` | `isExpectingResponse()` Returns that this type of PDU is not expecting a response.
`protected void` | `new_value(int n, varbind res)` Has no meaning, since there is not response.
`protected void` | `tell_them()` Has no meaning, since there is not response.
`java.lang.String` | `toString()` Returns the string representation of this object.

Methods inherited from class uk.co.westhawk.snmp.stack.Pdu
`addOid, addOid, addOid, addOid, addOid, addToTrans, getContext, getErrorIndex, getErrorStatus, getErrorStatusString, getMsgType, getReqId, getRequestVarbinds, getResponseVarbinds, isTimedOut, notifyObservers, printVars, send, send, send, sendme, setErrorIndex, setErrorStatus, setErrorStatus, setMsgType, setRetryIntervals, toString, waitForSelf`

Methods inherited from class java.util.Observable
`addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, setChanged`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### TrapPduv2

    public TrapPduv2(SnmpContextBasisFace con)

  Constructor.

Parameters:
  `con` - The context (v2c or v3) of the PDU
Throws:
  `java.lang.IllegalArgumentException` - if the context version is SNMPv1

Method Detail

### toString

    public java.lang.String toString()

  Returns the string representation of this object.

  Overrides:
    `toString` in class `Pdu`
  Returns:
    The string of the PDU

### new_value

    protected void new_value(int n,
                             varbind res)

  Has no meaning, since there is not response.

  Overrides:
    `new_value` in class `Pdu`

### tell_them

    protected void tell_them()

  Has no meaning, since there is not response.

  Overrides:
    `tell_them` in class `Pdu`

### isExpectingResponse

    protected boolean isExpectingResponse()

  Returns that this type of PDU is not expecting a response. This method is used in AbstractSnmpContext to help determine whether or not to start a thread that listens for a response when sending this PDU. The default is false.

  Overrides:
    `isExpectingResponse` in class `Pdu`
  Returns:
    true if a response is expected, false if not.
  Since:
    4_14

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