/*
 * Copyright 2017, TeamDev Ltd. All rights reserved.
 *
 * Redistribution and use in source and/or binary forms, with or without
 * modification, must retain the above copyright notice and the following
 * disclaimer.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.spine3.base;

import com.google.common.reflect.TypeToken;

import java.lang.reflect.Type;
import java.util.Map;

import static com.google.common.base.Preconditions.checkNotNull;

/**
 * Utility class for working with {@code Type}s.
 *
 * @author Illia Shepilov
 */
public class Types {

    private Types() {
        // Disable instantiation of this utility class.
    }

    /**
     * Creates the {@code ParameterizedTypeImpl} type of the map.
     *
     * @param keyClass   the class of keys are maintained by this map
     * @param valueClass the class  of mapped values
     * @param <K>        the type of keys are maintained by this map
     * @param <V>        the type of the values stored in this map
     * @return the type of the map
     */
    public static <K, V> Type createMapType(K keyClass, V valueClass) {
        checkNotNull(keyClass);
        checkNotNull(valueClass);

        return new TypeToken<Map<K, V>>() {}.getType();
    }
}

/*
 * Copyright 2017, TeamDev Ltd. All rights reserved.
 *
 * Redistribution and use in source and/or binary forms, with or without
 * modification, must retain the above copyright notice and the following
 * disclaimer.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.spine3.base;

import com.google.common.reflect.TypeToken;

import java.lang.reflect.Type;
import java.util.Map;

import static com.google.common.base.Preconditions.checkNotNull;

/**
 * Utility class for working with {@code Type}s.
 *
 * @author Illia Shepilov
 */
public class Types {

    private Types() {
        // Disable instantiation of this utility class.
    }

    /**
     * Creates the parametrized {@code Type} of the map.
     *
     * @param keyClass   the class of keys are maintained by this map
     * @param valueClass the class  of mapped values
     * @param <K>        the type of keys are maintained by this map
     * @param <V>        the type of the values stored in this map
     * @return the type of the map
     */
    public static <K, V> Type createMapType(K keyClass, V valueClass) {
        checkNotNull(keyClass);
        checkNotNull(valueClass);

        return new TypeToken<Map<K, V>>() {}.getType();
    }
}

Fix the documentation.