Constructor Detail

• StreamFeature

  public StreamFeature()

Method Detail

• isMandatory

  public boolean isMandatory()

  Indicates, whether this feature is mandatory to negotiate. By default a feature is not mandatory. Override this method for mandatory-to-negotiate features.

  Returns:

  True, if the feature is mandatory.

• getPriority

  public abstract int getPriority()

  Gets the priority of the feature, i.e. when it will be negotiated during feature negotiation.

  Returns:

  The priority.

• compareTo

  public final int compareTo(StreamFeature o)

  Compares two features by their priority and mandatory-to-negotiate flag.

  4.3.2. Stream Features Format

  A <features/> element that contains both mandatory-to-negotiate and voluntary-to-negotiate features indicates that the negotiation is not complete but that the initiating entity MAY complete the voluntary-to-negotiate feature(s) before it attempts to negotiate the mandatory-to-negotiate feature(s).

  Specified by:

  compareTo in interface Comparable<StreamFeature>

  Parameters:

  o - The other feature.

  Returns:

  The comparison result.

  See Also:

  XEP-0170: Recommended Order of Stream Feature Negotiation