PastValidatorForReadableInstant.java

/**
 *  Copyright 2010 Gunnar Morling (http://www.gunnarmorling.de/)
 *
 *  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 de.gmorling.moapa.joda_bv_integration;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import javax.validation.constraints.Past;

import org.joda.time.DateTime;
import org.joda.time.ReadableInstant;

public class PastValidatorForReadableInstant implements
		ConstraintValidator<Past, ReadableInstant> {

	public void initialize(Past constraintAnnotation) {}

	public boolean isValid(ReadableInstant value,
			ConstraintValidatorContext constraintValidatorContext) {

		if(value == null) {
			return true;
		}
		
		return value.isBefore(new DateTime());
	}
}