org.hibernate.validator.constraints.ConstraintComposition Maven / Gradle / Ivy

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 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
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 * http://www.apache.org/licenses/LICENSE-2.0
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 */

package org.hibernate.validator.constraints;

import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;

import static java.lang.annotation.ElementType.ANNOTATION_TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import static org.hibernate.validator.constraints.CompositionType.AND;

/**
 * Boolean operator that is applied to all constraints of a composing constraint annotation.
 * 
 * A composed constraint annotation can define a boolean combination of the constraints composing it,
 * by using {@code @ConstraintComposition}.
 *
 * @author Dag Hovland
 * @author Federico Mancini
 */
@Documented
@Target({ ANNOTATION_TYPE })
@Retention(RUNTIME)
public @interface ConstraintComposition {
	/**
	 * The value of this element specifies the boolean operator,
	 * namely disjunction (OR), negation of the conjunction (ALL_FALSE),
	 * or, the default, simple conjunction (AND).
	 */
	CompositionType value() default AND;
}