Class DefaultInstanceDescription

  • All Implemented Interfaces:
    InstanceDescription
    Direct Known Subclasses:
    NonLocalInstanceDescription

    @Deprecated(since="2021-09-30")
    public class DefaultInstanceDescription
    extends Object
    implements InstanceDescription
    Deprecated.
    This API is not supported in Cloud Service.
    Base implementation for the InstanceDescription interface.

    Allows creation of the object with clusterview and/or properties null - to be set later but before usage!

    • Constructor Detail

      • DefaultInstanceDescription

        public DefaultInstanceDescription​(DefaultClusterView clusterView,
                                          boolean isLeader,
                                          boolean isOwn,
                                          String slingId,
                                          Map<String,​String> properties)
        Deprecated.
    • Method Detail

      • hashCode

        public int hashCode()
        Deprecated.
        Overrides:
        hashCode in class Object
      • equals

        public boolean equals​(Object obj)
        Deprecated.
        Overrides:
        equals in class Object
      • getClusterView

        public ClusterView getClusterView()
        Deprecated.
        Description copied from interface: InstanceDescription
        Returns the ClusterView of which this instance is part of.

        Every instance is part of a ClusterView even if it is standalone.

        Specified by:
        getClusterView in interface InstanceDescription
        Returns:
        the ClusterView
      • isLeader

        public boolean isLeader()
        Deprecated.
        Description copied from interface: InstanceDescription
        If an instance is part of a cluster, it can potentially be a leader of that cluster - this information is queried here.

        If an instance is not part of a cluster, this method returns true.

        Only one instance of a cluster is guaranteed to be the leader at any time. This guarantee is provided by this service. If the leader goes down, the service elects a new leader and announces it to TopologyEventListener listeners.

        Specified by:
        isLeader in interface InstanceDescription
        Returns:
        true if this instance is the - only - leader in this cluster, false if it is one of the slaves, or true if it is not at all part of a cluster
      • isLocal

        public boolean isLocal()
        Deprecated.
        Description copied from interface: InstanceDescription
        Determines whether this InstanceDescription is representing the local instance.
        Specified by:
        isLocal in interface InstanceDescription
        Returns:
        whether this InstanceDescription is representing the local instance.
      • getProperty

        public String getProperty​(String name)
        Deprecated.
        Description copied from interface: InstanceDescription
        Returns the value of a particular property.

        Note that there are no hard guarantees or requirements as to how quickly a property is available once it is set on a distant instance.

        Specified by:
        getProperty in interface InstanceDescription
        Parameters:
        name - The property name
        Returns:
        The value of the property or null
        See Also:
        DiscoveryService#setProperty(String, String)
      • getProperties

        public Map<String,​String> getProperties()
        Deprecated.
        Description copied from interface: InstanceDescription
        Returns a Map containing all properties of this instance. This method always returns a map, it might be empty. The returned map is not modifiable.
        Specified by:
        getProperties in interface InstanceDescription
        Returns:
        a Map containing all properties of this instance
      • setProperty

        public void setProperty​(String key,
                                String value)
        Deprecated.
        for testing only! *