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• moon-util
• 0.0.43
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• Optionally.java

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com.moon.core.util.Optionally Maven / Gradle / Ivy

package com.moon.core.util;

/**
 * @author moonsky
 */
public interface Optionally {
    /**
     * 是否存在
     *
     * @return 是否存在
     */
    boolean isPresent();

    /**
     * 是否缺失
     *
     * @return 是否不存在
     */
    default boolean isAbsent() { return !isPresent(); }
}