All Downloads are FREE. Search and download functionalities are using the official Maven repository.

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

Go to download

JPMS Module-Info's for a few of the Jakarta Libraries. These will be removed as time goes by

There is a newer version: 62
Show newest version
/*
 * Hibernate Validator, declare and validate application constraints
 *
 * License: Apache License, Version 2.0
 * See the license.txt file in the root directory or .
 */
package org.hibernate.validator.constraints;

import static java.lang.annotation.ElementType.CONSTRUCTOR;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

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

import jakarta.validation.Constraint;
import jakarta.validation.Payload;

import org.hibernate.validator.constraints.ParameterScriptAssert.List;

/**
 * 

* A method-level constraint, that evaluates a script expression against the * annotated method or constructor. This constraint can be used to implement * validation routines that depend on several parameters of the annotated * executable. *

*

* Script expressions can be written in any scripting or expression language, * for which a JSR 223 * ("Scripting for the JavaTM Platform") compatible engine can be * found on the classpath. To refer to a parameter within the scripting * expression, use its name as obtained by the active * {@link jakarta.validation.ParameterNameProvider}. The default provider will * return the actual parameter names, if the -parameters compiler option * has been enabled, and {@code arg0}, {@code arg1} etc. otherwise. *

*

* The following listing shows an example using the JavaScript engine which * comes with the JDK: *

*
 * {@code @ParameterScriptAssert(script = "start.before(end)", lang = "javascript")
 * public void createEvent(Date start, Date end) { ... }
 * }
 * 
*

* Can be specified on any method or constructor. *

* * @author Gunnar Morling */ @Documented @Constraint(validatedBy = { }) @Target({ CONSTRUCTOR, METHOD }) @Retention(RUNTIME) @Repeatable(List.class) public @interface ParameterScriptAssert { String message() default "{org.hibernate.validator.constraints.ParametersScriptAssert.message}"; Class[] groups() default { }; Class[] payload() default { }; /** * @return The name of the script language used by this constraint as * expected by the JSR 223 {@link javax.script.ScriptEngineManager}. A * {@link jakarta.validation.ConstraintDeclarationException} will be thrown upon script * evaluation, if no engine for the given language could be found. */ String lang(); /** * @return The script to be executed. The script must return * {@code Boolean.TRUE}, if the executable parameters could * successfully be validated, otherwise {@code Boolean.FALSE}. * Returning null or any type other than Boolean will cause a * {@link jakarta.validation.ConstraintDeclarationException} upon validation. Any * exception occurring during script evaluation will be wrapped into * a ConstraintDeclarationException, too. Within the script, the * validated parameters can be accessed using their names as retrieved from the * active {@link jakarta.validation.ParameterNameProvider}. */ String script(); /** * Defines several {@link ParameterScriptAssert} annotations on the same executable. */ @Target({ CONSTRUCTOR, METHOD }) @Retention(RUNTIME) @Documented public @interface List { ParameterScriptAssert[] value(); } }




© 2015 - 2024 Weber Informatics LLC | Privacy Policy