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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html><head><title>org.snmp4j.transport</title><!--/*_############################################################################ _## _## SNMP4J _## _## Copyright 2003-2004 Frank Fock and Jochen Katz (SNMP4J.org) _## _## Licensed under the Apache License, Version 2.0 (the "License"); _## you may not use this file except in compliance with the License. _## You may obtain a copy of the License at _## _## http://www.apache.org/licenses/LICENSE-2.0 _## _## Unless required by applicable law or agreed to in writing, software _## distributed under the License is distributed on an "AS IS" BASIS, _## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. _## See the License for the specific language governing permissions and _## limitations under the License. _## _##########################################################################*/--></head><body bgcolor="white">Provides transport protocol mappings for SNMP.<p>The <code>org.snmp4j.transport</code> classes are capable of sending andreceiving byte messages to and from a network using transport mapping specifictransport protocol. All SNMP4J transport mappings have to implement the<code>org.snmp4j.TransportMapping</code> interface. SNMP4J supports twotransport mappings for the transport protocols UDP and TCP:</p><ul><li> The UDP transport mapping is the default SNMP transport mapping. It is implemented by the <code>DefaultUdpTransportMapping</code> class.</li><li> The TCP transport mapping is implemented by the <code>DefaultTcpTransportMapping</code> using the <code>java.nio</code> package.</li></ul><p> Additional transport mappings can be easily added. It is sufficient to implement the <code>org.snmp4j.TransportMapping</code> interface and add an instance of that class to the <code>Snmp</code> (or <code>MessageDispatcher</code>) object. To be able to lookup a transport mapping by an <code>Address</code> class via the <code>TransportMappings</code> (as <code>Snmp</code> does for notification listeners), a transport mapping has to be registered in a transport mapping registration file. The default file is <code>transports.properties</code> in the <code>org.snmp4j.transport</code> package. To use a different file, set the system property <code>org.snmp4j.transportMappings</code>.</p> <p>Connection-oriented transport mappings like TCP should implement the <code>ConnectionOrientedTransportMapping</code> interface to support <code>MessageLengthDecoder</code> and <code>TransportStateListener</code>.</p> <p> The following UML class diagram shows the classes of the <code>org.snmp4j.transport</code> package and their relationships (relationships to other packages are not shown):</p><img name="UML Class Diagram org.snmp4j.transport" src="doc-files/org_snmp4j_transport.gif" alt="UML Class Diagram org.snmp4j.transport"/></body></html>⌨️ 快捷键说明
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