{{tag>Programmers_Reference Methods IChannelType_Interface getinputsourceclassname Index}}

====getInputSourceClassName ()====
<code java>public String getInputSourceClassName ()</code>

This method must return the fully qualified name of the Source that handles communication with the external software system or device (see also [[docs:3500:0400:0410]]). If messages from the external system or device are never received (only sent to), ''null'' should be returned.