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;
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.ConstraintTarget;
022 import net.sf.oval.ConstraintViolation;
023 import net.sf.oval.configuration.annotation.Constraint;
024 import net.sf.oval.configuration.annotation.Constraints;
025
026 /**
027 * Check if the array or collection has at least the given number of elements.
028 *
029 * <br><br>
030 * <b>Note:</b> This constraint is also satisfied when the value to validate is null, therefore you might also need to specified @NotNull
031 *
032 * @author Sebastian Thomschke
033 */
034 @Documented
035 @Retention(RetentionPolicy.RUNTIME)
036 @Target({ElementType.FIELD, ElementType.PARAMETER, ElementType.METHOD})
037 @Constraint(checkWith = MinSizeCheck.class)
038 public @interface MinSize
039 {
040 @Documented
041 @Retention(RetentionPolicy.RUNTIME)
042 @Target({ElementType.FIELD, ElementType.PARAMETER, ElementType.METHOD})
043 @Constraints
044 public @interface List
045 {
046 /**
047 * The MinSize constraints.
048 */
049 MinSize[] value();
050
051 /**
052 * Formula returning <code>true</code> if this constraint shall be evaluated and
053 * <code>false</code> if it shall be ignored for the current validation.
054 * <p>
055 * <b>Important:</b> The formula must be prefixed with the name of the scripting language that is used.
056 * E.g. <code>groovy:_this.amount > 10</code>
057 * <p>
058 * Available context variables are:<br>
059 * <b>_this</b> -> the validated bean<br>
060 * <b>_value</b> -> the value to validate (e.g. the field value, parameter value, method return value,
061 * or the validated bean for object level constraints)
062 */
063 String when() default "";
064 }
065
066 /**
067 * <p>In case the constraint is declared for an array, collection or map this controls how the constraint is applied to it and it's child objects.
068 *
069 * <p><b>Default:</b> ConstraintTarget.CONTAINER
070 *
071 * <p><b>Note:</b> This setting is ignored for object types other than array, map and collection.
072 */
073 ConstraintTarget[] appliesTo() default ConstraintTarget.CONTAINER;
074
075 /**
076 * error code passed to the ConstraintViolation object
077 */
078 String errorCode() default "net.sf.oval.constraint.MinSize";
079
080 /**
081 * message to be used for the ContraintsViolatedException
082 *
083 * @see ConstraintViolation
084 */
085 String message() default "net.sf.oval.constraint.MinSize.violated";
086
087 /**
088 * The associated constraint profiles.
089 */
090 String[] profiles() default {};
091
092 /**
093 * severity passed to the ConstraintViolation object
094 */
095 int severity() default 0;
096
097 String target() default "";
098
099 int value();
100
101 /**
102 * Formula returning <code>true</code> if this constraint shall be evaluated and
103 * <code>false</code> if it shall be ignored for the current validation.
104 * <p>
105 * <b>Important:</b> The formula must be prefixed with the name of the scripting language that is used.
106 * E.g. <code>groovy:_this.amount > 10</code>
107 * <p>
108 * Available context variables are:<br>
109 * <b>_this</b> -> the validated bean<br>
110 * <b>_value</b> -> the value to validate (e.g. the field value, parameter value, method return value,
111 * or the validated bean for object level constraints)
112 */
113 String when() default "";
114 }