AbstractTypeSpecificValidator.java

/*
 * Copyright 2004-2005 the original author or authors.
 *
 * 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.springmodules.validation.validator;

import org.springframework.validation.Validator;

/**
 * A base class for all {@link Validator} implementation that support only
 * one specific type (class).
 *
 * @author Uri Boness
 */
public abstract class AbstractTypeSpecificValidator implements Validator {

    // the type this validator supports
    private Class type;

    /**
     * Constructs a new AbstractTypeSpecificValidator with a given supported type.
     *
     * @param type The class supported by this validator.
     */
    public AbstractTypeSpecificValidator(Class type) {
        this.type = type;
    }

    /**
     * See {@link Validator#supports(Class)}.
     *
     * @return <code>true</code> if the given class is an instance or a sub-type of the type supported
     *         by this validator, <code>false</code> otherwise.
     */
    public boolean supports(Class clazz) {
        return type.isAssignableFrom(clazz);
    }

}