com.speedment.common.logger.internal.util.StaticClassUtil Maven / Gradle / Ivy
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A Speedment bundle that shades all dependencies into one jar. This is
useful when deploying an application on a server.
/**
*
* Copyright (c) 2006-2017, Speedment, Inc. All Rights Reserved.
*
* 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 com.speedment.common.logger.internal.util;
/**
* Support class for classes that only contains static methods and fields.
* This interface can for example be used for various "Util" classes.
*
* @author Per Minborg
*/
public final class StaticClassUtil {
/**
* Support method that can be used in constructors to throw an
* {@code UnsupportedOperationException} if someone is trying to create an
* instance of the class.
*
* @param caller the class of the instance that called this method
*/
public static void instanceNotAllowed(Class caller) throws UnsupportedOperationException {
throw new UnsupportedOperationException(
"It is not allowed to create instances of the " +
caller.getName() +
" class."
);
}
/**
* Utility classes should not be instantiated.
*/
private StaticClassUtil() { instanceNotAllowed(getClass()); }
}