Package com.sun.jini.discovery

Interface MulticastRequestDecoder

All Superinterfaces:
DiscoveryFormatProvider
All Known Subinterfaces:
DelayedMulticastRequestDecoder
All Known Implementing Classes:
Server
public interface MulticastRequestDecoder extends DiscoveryFormatProvider
Interface implemented by classes which decode multicast request data according to discovery protocol formats.
Since:
2.0
Author:
Sun Microsystems, Inc.

  • Method Details

    • decodeMulticastRequest

      MulticastRequest decodeMulticastRequest(ByteBuffer buf, InvocationConstraints constraints, ClientSubjectChecker checker) throws IOException
      Decodes the multicast request data contained in the given buffer in a manner that satisfies the specified absolute constraints and client subject checker (if any), returning a MulticastRequest instance that contains the decoded data. null constraints are considered equivalent to empty constraints. All the specified constraints are checked before this method returns.
      Parameters:
      buf - a buffer containing the packet data to decode. The multicast request data must begin at position zero of buf.
      constraints - the constraints to apply when decoding the data, or null
      checker - the object to use to check the client subject, or null
      Returns:
      the decoded multicast request data
      Throws:
      IOException - if an error occurs in interpreting the data
      UnsupportedConstraintException - if unable to satisfy the specified constraints
      SecurityException - if the given constraints cannot be satisfied due to insufficient caller permissions, or if the client subject check fails
      NullPointerException - if buf is null