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Java Bean api extends by Ultreia.io

There is a newer version: 0.3.3

package io.ultreia.java4all.bean;

/*-
 * #%L
 * Java Beans extends by Ultreia.io
 * %%
 * Copyright (C) 2018 Ultreia.io
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * #L%
 */

import java.util.Comparator;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Objects;
import java.util.function.Function;

/**
 * Created by tchemit on 11/01/2018.
 *
 * @author Tony Chemit - [email protected]
 */
public class AbstractJavaBeanComparatorBuilder> implements JavaBeanComparatorBuilder {

    private final List> comparators;
    private final JavaBeanDefinition javaBeanDefinition;

    public AbstractJavaBeanComparatorBuilder(JavaBeanDefinition javaBeanDefinition) {
        this.javaBeanDefinition = javaBeanDefinition;
        this.comparators = new LinkedList<>();
    }

    protected AbstractJavaBeanComparatorBuilder(Class javaBeanDefinitionType) {
        this(JavaBeanDefinitionStore.definition(javaBeanDefinitionType));
    }

    @Override
    public void addComparator(Comparator predicate) {
        comparators.add(predicate);
    }

    @Override
    public Comparator build() {
        Iterator> iterator = comparators.iterator();
        if (!iterator.hasNext()) {
            return null;
        }
        Comparator result = iterator.next();
        while (iterator.hasNext()) {
            result = result.thenComparing(iterator.next());
        }
        return result;
    }

    protected > QuerySupport on(String propertyName) {
        return new QuerySupport<>(p(), this.getter(propertyName));
    }

    protected  Function getter(String propertyName) {
        return Objects.requireNonNull(javaBeanDefinition.getter(propertyName));
    }

    @SuppressWarnings("unchecked")
    protected P p() {
        return (P) this;
    }

}