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Library which provides meta-model, diffs, paths... for java beans

There is a newer version: 0.0.4

/*-
 * #%L
 * codegeny-beans
 * %%
 * Copyright (C) 2016 - 2018 Codegeny
 * %%
 * 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.
 * #L%
 */
package org.codegeny.beans.model;

import java.util.Comparator;

import static java.util.Comparator.nullsLast;
import static java.util.Objects.requireNonNull;

/**
 * An implementation of {@link Model} for a simple/atomic value.
 *
 * @param  The value type.
 * @author Xavier DURY
 */
public final class ValueModel implements Model {

    private final Comparator comparator;
    private final Class type;

    ValueModel(Class type, Comparator comparator) {
        this.type = requireNonNull(type);
        this.comparator = nullsLast(requireNonNull(comparator));
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public  R accept(ModelVisitor visitor) {
        return requireNonNull(visitor).visitValue(this);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public int compare(V left, V right) {
        return comparator.compare(left, right);
    }

    /**
     * Return the value class.
     *
     * @return The value class.
     */
    public Class getType() {
        return type;
    }
}