The org.snmp4j.transport classes are capable of sending and
receiving byte messages to and from a network using transport mapping specific
transport protocol. All SNMP4J transport mappings have to implement the
org.snmp4j.TransportMapping interface. SNMP4J supports two
transport mappings for the transport protocols UDP and TCP:
DefaultUdpTransportMapping class.
DefaultTcpTransportMapping using the java.nio
package.
Additional transport mappings can be easily added. It is sufficient to
implement the org.snmp4j.TransportMapping interface and add
an instance of that class to the Snmp
(or MessageDispatcher)
object. To be able to lookup a transport mapping by an Address
class via the TransportMappings (as Snmp does
for notification listeners), a transport mapping has to be registered
in a transport mapping registration file. The default file is
transports.properties in the org.snmp4j.transport
package. To use a different file, set the system property
org.snmp4j.transportMappings.
Connection-oriented transport mappings like TCP should implement
the ConnectionOrientedTransportMapping interface to support
MessageLengthDecoder and TransportStateListener.
The following UML class diagram shows the classes of the
org.snmp4j.transport package and their relationships
(relationships to other packages are not shown):