com.speedment.runtime.core.internal.util.CollectionsUtil Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of runtime-deploy Show documentation
Show all versions of runtime-deploy Show documentation
A Speedment bundle that shades all dependencies into one jar. This is
useful when deploying an application on a server.
/**
*
* Copyright (c) 2006-2019, 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.runtime.core.internal.util;
import java.util.Collection;
import java.util.Iterator;
import java.util.NoSuchElementException;
import java.util.Optional;
/**
*
* @author pemi
*/
public final class CollectionsUtil {
public static Optional findAnyIn(Collection collection) {
final Iterator iterator = collection.iterator();
if (iterator.hasNext()) {
return Optional.of(iterator.next());
}
return Optional.empty();
}
/**
* Gets one element from the provided Collection. If no element is present,
* an Exception is thrown. No guarantee is made as to which element is
* returned from time to time.
*
* @param Collection type
* @param collection to use
* @return one element from the provided Collection
* @throws NoSuchElementException if no elements are present in the
* Collection
*/
public static T getAnyFrom(Collection collection) {
final Iterator iterator = collection.iterator();
if (iterator.hasNext()) {
return iterator.next();
}
throw new NoSuchElementException("No value present");
}
private CollectionsUtil() {
}
}