com.crankuptheamps.client.util.SerializableFunction Maven / Gradle / Ivy
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package com.crankuptheamps.client.util;
import java.io.Serializable;
import java.util.Properties;
import com.crankuptheamps.client.Client;
/**
* This generic utility interface has been added to the AMPS client to better
* support interoperability with other AMPS components and third-party software.
* Implementations of this interface can represent any function that takes a
* single argument and returns a result. This function is tagged to be
* serializable.
*
* Example usages of this interface include the following:
*
* Within the AMPS/Apache Spark integration component, there is a need for a
* serializable function that returns an AMPS {@link Client}, given a Java
* {@link Properties} object. Such implementations would have this signature:
* SerializableFunction<Properties, Client>
*
* Within the 60East Spark utility client, there is an interface called
* AuthenticatorFactory, whose single method has the following signature:
*
*
* Authenticator createAuthenticator(String connectionURI)
*
*
* End-users can instead provide an implementation of this
* interface using the following signature:
* SerializableFunction<String, Authenticator>
*
* NOTE: In a future release, once support for Java 7 is dropped, this
* interface will be modified to also extend java.util.function.Function
*
* @param The type of the input to the function.
* @param The type of the returned result of the function.
*/
public interface SerializableFunction extends Serializable {
/**
* Invokes the function with the specified argument of type T and returns
* a result of type R.
* @param t the argument to provide to the function
* @return the result of calling the function with the provided argument
*/
R apply(T t);
}