org.sejda.model.validation.constraint.ValidSingleOutput Maven / Gradle / Ivy

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/*
 * Created on 12/ago/2011
 * Copyright 2011 by Andrea Vacondio ([email protected]).
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); 
 * you may not use this file except in compliance with the License. 
 * You may obtain a copy of the License at 
 * 
 * http://www.apache.org/licenses/LICENSE-2.0 
 * 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 * See the License for the specific language governing permissions and 
 * limitations under the License. 
 */
package org.sejda.model.validation.constraint;

import static java.lang.annotation.ElementType.ANNOTATION_TYPE;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.PARAMETER;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

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

import javax.validation.Constraint;
import javax.validation.Payload;
import javax.validation.constraints.NotNull;

import org.sejda.model.validation.validator.SingleOutputValidator;

/**
 * Constraint validating that a single output parameter is valid.
 * 
 * @author Andrea Vacondio
 * 
 */
@NotNull
@Target({ METHOD, FIELD, ANNOTATION_TYPE, PARAMETER, TYPE })
@Retention(RUNTIME)
@Constraint(validatedBy = SingleOutputValidator.class)
@Documented
public @interface ValidSingleOutput {
    String message() default "Output name cannot be blank for non file output destinations.";

    Class[] groups() default {};

    Class[] payload() default {};
}