Package com.sun.jini.discovery

Class MulticastAnnouncement

java.lang.Object
com.sun.jini.discovery.MulticastAnnouncement
public class MulticastAnnouncement extends Object
Class representing the values in a multicast announcement.
Since:
2.0
Author:
Sun Microsystems, Inc.

  • Field Details

    • sequenceNumber

      protected long sequenceNumber
      The announcement sequence number.

    • host

      protected String host
      The lookup service host.

    • port

      protected int port
      The lookup service listen port.

    • groups

      protected String[] groups
      The lookup service member groups.

    • serviceID

      protected ServiceID serviceID
      The lookup service ID.

  • Constructor Details

    • MulticastAnnouncement

      public MulticastAnnouncement(long sequenceNumber, String host, int port, String[] groups, ServiceID serviceID)
      Creates a new MulticastAnnouncement instance containing the given values. The groups array is copied; a null value is considered equivalent to an empty array.
      Parameters:
      sequenceNumber - the announcement sequence number
      host - the lookup service host
      port - the lookup service listen port
      groups - the lookup service member groups
      serviceID - the lookup service ID
      Throws:
      NullPointerException - if host or serviceID is null, or if groups contains null
      IllegalArgumentException - if port is out of range

  • Method Details

    • getSequenceNumber

      public long getSequenceNumber()
      Returns the announcement sequence number.
      Returns:
      the announcement sequence number

    • getHost

      public String getHost()
      Returns the lookup service host name.
      Returns:
      the lookup service host name

    • getPort

      public int getPort()
      Returns the lookup service listen port.
      Returns:
      the lookup service listen port

    • getGroups

      public String[] getGroups()
      Returns the member groups of the lookup service.
      Returns:
      the member groups of the lookup service

    • getServiceID

      public ServiceID getServiceID()
      Returns the service ID of the lookup service.
      Returns:
      the service ID of the lookup service

    • checkConstraints

      public void checkConstraints() throws IOException
      Checks if the constraints whose checking was delayed when this instance was decoded, if any, are satisfied. If the instance was not decoded, but directly constructed, this method does nothing.
      Throws:
      UnsupportedConstraintException - if unable to satisfy the specified constraints
      SecurityException - if the given constraints cannot be satisfied due to insufficient caller permissions
      IOException - if an error occurs in interpreting the data

    • toString

      public String toString()
      Returns a string representation of this announcement.
      Overrides:
      toString in class Object
      Returns:
      a string representation of this announcement