ratpack.func.NoArgAction Maven / Gradle / Ivy
/*
* Copyright 2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package ratpack.func;
import ratpack.util.ExceptionUtils;
/**
* An action that takes no arguments.
*
* Used instead of {@link Runnable} to allow the throwing of checked exceptions.
*/
@FunctionalInterface
public interface NoArgAction {
/**
* Execute the action.
*
* @throws Exception any
*/
public void execute() throws Exception;
/**
* Returns an action that immediately throws the given exception.
*
* The exception is thrown via {@link ratpack.util.ExceptionUtils#toException(Throwable)}
*
* @param throwable the throwable to immediately throw when the returned action is executed
* @return an action that immediately throws the given exception.
*/
static NoArgAction throwException(final Throwable throwable) {
return () -> {
throw ExceptionUtils.toException(throwable);
};
}
}
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