/**

* Jooby https://jooby.io

* Apache License Version 2.0 https://jooby.io/LICENSE.txt

* Copyright 2014 Edgar Espina

*/

package io.jooby;

import javax.annotation.Nonnull;

/**

* Simple extension contract for adding and reusing commons application infrastructure components

* and/or integrate with external libraries.

*

* Extensions are expected to work via side-effects.

*

* @author edgar

* @since 2.0.0

*/

public interface Extension {

/**

* True when extension needs to run while starting the application. Defaults is false, starts

* immediately.

*

* @return True when extension needs to run while starting the application. Defaults is false,

* starts immediately.

*/

default boolean lateinit() {

return false;

}

/**

* Install, configure additional features to a Jooby application.

*

* @param application Jooby application.

* @throws Exception If something goes wrong.

*/

void install(@Nonnull Jooby application) throws Exception;

}