// Copyright 2008 The Apache Software Foundation

 //

 // 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.apache.tapestry5.validator;

 import org.apache.tapestry5.Validator;

 /**

  * Base class for constructing a {@link org.apache.tapestry5.Validator}.

  */

 public abstract class AbstractValidator<C, T> implements Validator<C, T>

 {

     private final Class<C> constraintType;

     private final Class<T> valueType;

     private final String messageKey;

     protected AbstractValidator(Class<C> constraintType, Class<T> valueType, String messageKey)

     {

         this.constraintType = constraintType;

         this.valueType = valueType;

         this.messageKey = messageKey;

     }

     public final Class<C> getConstraintType()

     {

         return constraintType;

     }

     public final Class<T> getValueType()

     {

         return valueType;

     }

     public final String getMessageKey()

     {

         return messageKey;

     }

     /**

      * Return false, which is correct for the vast majority of validators. {@link org.apache.tapestry5.validator.Required}

      * overrides this to true.F

      */

     public boolean isRequired()

     {

         return false;

     }

 }