001 /******************************************************************************* 002 * Portions created by Sebastian Thomschke are copyright (c) 2005-2011 Sebastian 003 * Thomschke. 004 * 005 * All Rights Reserved. This program and the accompanying materials 006 * are made available under the terms of the Eclipse Public License v1.0 007 * which accompanies this distribution, and is available at 008 * http://www.eclipse.org/legal/epl-v10.html 009 * 010 * Contributors: 011 * Sebastian Thomschke - initial implementation. 012 *******************************************************************************/ 013 package net.sf.oval.constraint.exclusion; 014 015 import java.lang.annotation.Documented; 016 import java.lang.annotation.ElementType; 017 import java.lang.annotation.Retention; 018 import java.lang.annotation.RetentionPolicy; 019 import java.lang.annotation.Target; 020 021 import net.sf.oval.configuration.annotation.Exclusion; 022 023 /** 024 * Allows a value to be nullable. 025 * 026 * @author Sebastian Thomschke 027 */ 028 @Documented 029 @Retention(RetentionPolicy.RUNTIME) 030 @Target({ElementType.PARAMETER}) 031 @Exclusion(excludeWith = NullableExclusion.class) 032 public @interface Nullable 033 { 034 /** 035 * The associated constraint profiles. 036 */ 037 String[] profiles() default {}; 038 039 /** 040 * Formula returning <code>true</code> if this constraint exclusion shall be active and 041 * <code>false</code> if it shall be ignored for the current validation. 042 * <p> 043 * <b>Important:</b> The formula must be prefixed with the name of the scripting language that is used. 044 * E.g. <code>groovy:_this.amount > 10</code> 045 * <p> 046 * Available context variables are:<br> 047 * <b>_this</b> -> the validated bean<br> 048 * <b>_value</b> -> the value to validate (e.g. the field value, parameter value, method return value, 049 * or the validated bean for object level constraints) 050 */ 051 String when() default ""; 052 }