/*
 * Copyright (c) 2011, Paul Merlin. All Rights Reserved.
 *
 * 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.qi4j.library.constraints.annotation;

import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import org.qi4j.api.constraint.ConstraintDeclaration;
import org.qi4j.api.constraint.Constraints;
import org.qi4j.library.constraints.URLConstraint;

/**
 * Mark a property as being a valid, non null, Universal Resource Locator.
 */
@ConstraintDeclaration
@NotEmpty
@Retention( RetentionPolicy.RUNTIME )
@InstanceOf( String.class )
@Constraints( URLConstraint.class )
public @interface URL
{
}