001// Licensed under the Apache License, Version 2.0 (the "License");
002// you may not use this file except in compliance with the License.
003// You may obtain a copy of the License at
004//
005// http://www.apache.org/licenses/LICENSE-2.0
006//
007// Unless required by applicable law or agreed to in writing, software
008// distributed under the License is distributed on an "AS IS" BASIS,
009// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
010// See the License for the specific language governing permissions and
011// limitations under the License.
012
013package org.apache.tapestry5.beaneditor;
014
015import org.apache.tapestry5.ioc.annotations.UseWith;
016
017import java.lang.annotation.Documented;
018import java.lang.annotation.ElementType;
019import java.lang.annotation.Retention;
020import java.lang.annotation.Target;
021
022import static java.lang.annotation.RetentionPolicy.RUNTIME;
023import static org.apache.tapestry5.ioc.annotations.AnnotationUseContext.*;
024
025/**
026 * Used to attach validation constraints directly to a property (either the getter or the setter method). The annotation
027 * value is a comma separated list of <em>validation constraints</em>, each one identifying a validator type (such as
028 * "required", "minlength") and optionally, a constraint value. Most validators need a constraint value, which is
029 * separated from the type by an equals size (i.e., "maxlength=30"). In addition, the value may include
030 * validator macros.
031 *
032 * May be placed on any getter or setter method, or on the matching field.
033 * 
034 * @see Translate
035 */
036@Target(
037{ ElementType.FIELD, ElementType.METHOD })
038@Retention(RUNTIME)
039@Documented
040@UseWith(
041{ BEAN, COMPONENT, MIXIN, PAGE })
042public @interface Validate
043{
044    String value();
045}