io.joynr.arbitration

Class ArbitrationStrategyFunction

java.lang.Object

io.joynr.arbitration.ArbitrationStrategyFunction

public abstract class ArbitrationStrategyFunction
extends Object

Provide an implementation of this class as part of the DiscoveryQos (using one of the constructors which take this as an argument) in order to have control over which discovery entries are used as result of the arbitration.

See Also:

DiscoveryEntry, DiscoveryQos, ArbitrationStrategy

Constructor Summary

Constructors

Constructor and Description
ArbitrationStrategyFunction()

Method Summary

Modifier and Type	Method and Description
protected Optional<CustomParameter>	findQosParameter(DiscoveryEntry discoveryEntry, String parameterName)
protected abstract Set<DiscoveryEntryWithMetaInfo>	select(Map<String,String> parameters, Collection<DiscoveryEntryWithMetaInfo> capabilities) Implement this method so that it selects all relevant, discovered capabilities which should be used in the result of the arbitration.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ArbitrationStrategyFunction

public ArbitrationStrategyFunction()

Method Detail

select

protected abstract Set<DiscoveryEntryWithMetaInfo> select(Map<String,String> parameters,
                                                          Collection<DiscoveryEntryWithMetaInfo> capabilities)

Implement this method so that it selects all relevant, discovered capabilities which should be used in the result of the arbitration.

Parameters:

parameters - the parameters which can be used during selection.

capabilities - the list of candidate discovery entries from which to select the relevant ones.

Returns:

the collection of discovery entries which should be used in the arbitration result. A value of null or an empty collection are used to indicate that there was no match.

findQosParameter

protected Optional<CustomParameter> findQosParameter(DiscoveryEntry discoveryEntry,
                                                     String parameterName)