/**
* 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.
*
* Copyright 2012-2015 the original author or authors.
*/
package spoon.test.loop.testclasses;
import java.util.ArrayList;
import java.util.Collection;
import static java.util.Collections.unmodifiableCollection;
/**
* Join of two or more Condition.
* @param <T> the type of object this condition accepts.
*
* @author Yvonne Wang
* @author Mikhail Mazursky
*/
public abstract class Join<T> extends Condition<T> {
final Collection<Condition<? super T>> conditions;
/**
* Creates a new Join.
* @param conditions the conditions to join.
* @throws NullPointerException if the given array is {@code null}.
* @throws NullPointerException if any of the elements in the given array is {@code null}.
*/
@SafeVarargs
protected Join(Condition<? super T>... conditions) {
if (conditions == null) throw conditionsIsNull();
this.conditions = new ArrayList<>();
for (Condition<? super T> condition : conditions)
this.conditions.add(notNull(condition));
}
private static NullPointerException conditionsIsNull() {
return new NullPointerException("The given conditions should not be null");
}
private static <T> Condition<T> notNull(Condition<T> condition) {
return null;
}
/**
* Returns the conditions to join.
* @return the conditions to join.
*/
protected final Collection<Condition<? super T>> conditions() {
return unmodifiableCollection(conditions);
}
}