com.github.rutledgepaulv.qbuilders.properties.virtual.ExistentialProperty Maven / Gradle / Ivy

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package com.github.rutledgepaulv.qbuilders.properties.virtual;

import com.github.rutledgepaulv.qbuilders.builders.QBuilder;
import com.github.rutledgepaulv.qbuilders.conditions.Condition;

/**
 * For properties that may or may not exist.
 *
 * @param  The final type of the builder.
 */
public interface ExistentialProperty> extends Property {

    /**
     * Specifies that the selected field must exist (and be non-null).
     *
     * @return The logically complete condition
     */
    Condition exists();

    /**
     * Specifies that the selected field must not exist (or be equal to null).
     *
     * @return The logically complete condition
     */
    Condition doesNotExist();

}