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• 3.1.0
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• ConstraintTarget.java

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jakarta.validation.ConstraintTarget Maven / Gradle / Ivy

/*
 * Jakarta Validation API
 *
 * License: Apache License, Version 2.0
 * See the license.txt file in the root directory or .
 */
package jakarta.validation;

/**
 * Defines the constraint target.
 *
 * @author Emmanuel Bernard
 * @since 1.1
 */
public enum ConstraintTarget {

	/**
	 * Discover the type when no ambiguity is present
	 * 

	 *     
if neither on a method nor a constructor, it implies the annotated element
	 *     (type, field etc),
	 *     
if on a method or constructor with no parameter, it implies
	 *     {@code RETURN_VALUE},
	 *     
if on a method with no return value ({@code void}), it implies
	 *     {@code PARAMETERS}.
	 * 
	 * Otherwise, {@code IMPLICIT} is not accepted and either {@code RETURN_VALUE} or
	 * {@code PARAMETERS} is required. This is the case for constructors with parameters
	 * and methods with parameters and return value.
	 */
	IMPLICIT,

	/**
	 * Constraint applies to the return value of a method or a constructor.
	 */
	RETURN_VALUE,

	/**
	 * Constraint applies to the parameters of a method or a constructor
	 */
	PARAMETERS
}