And.java
/*
* Copyright © 2014 - 2021 Leipzig University (Database Research Group)
*
* 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 org.gradoop.flink.model.impl.functions.filters;
import org.apache.flink.api.common.functions.FilterFunction;
/**
* A filter that combines multiple filters using a logical {@code and}.
* This filter will therefore accept all objects that are accepted by
* every component filter.
*
* @param <T> The type of objects to filter.
*/
public class And<T> extends AbstractRichCombinedFilterFunction<T> {
/**
* Constructor setting the filter to be combined with a logical {@code and}.
*
* @param filters The filters.
*/
@SafeVarargs
public And(FilterFunction<? super T>... filters) {
super(filters);
}
@Override
public boolean filter(T value) throws Exception {
for (FilterFunction<? super T> componentFilter : components) {
if (!componentFilter.filter(value)) {
return false;
}
}
return true;
}
}