org.kiwiproject.beta.base.KiwiEnums2 Maven / Gradle / Ivy

Go to download
package org.kiwiproject.beta.base;

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

import com.google.common.annotations.Beta;
import lombok.experimental.UtilityClass;

import java.util.List;

/**
 * Static utilities for working with {@link Enum}.
 * 
 * These may eventually be moved into {@link org.kiwiproject.base.KiwiEnums}
 * in kiwi.
 */
@UtilityClass
@Beta
public class KiwiEnums2 {

    /**
     * Return the constants in the given enum class as a list.
     *
     * @param enumClass the enum class
     * @param        the type in the enum
     * @return an unmodifiable list containing the enum constants
     * @throws IllegalArgumentException if the given class is not an enum
     */
    public static > List entries(Class enumClass) {
        checkArgument(enumClass.isEnum(), "%s is not an enum", enumClass);
        return List.of(enumClass.getEnumConstants());
    }
}