/*
    *  Copyright 2010, 2011, 2012 Christopher Pheby
    *
    *  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.jadira.usertype.spi.shared;
  
  import java.io.Serializable;
  import java.util.Properties;
  
  import org.hibernate.usertype.EnhancedUserType;
  import org.jadira.usertype.spi.utils.reflection.TypeHelper;
  
  public abstract class AbstractKnownClassHeuristicUserType<T> extends AbstractHeuristicUserType implements EnhancedUserType, Serializable {
  
  	private static final long serialVersionUID = 2233911693851349367L;
  
  	private Class<T> mappedClass;
  
  	protected void setMappedClass(Class<T> mappedClass) {
      	this.mappedClass = mappedClass;
      }
      
      protected Class<T> getMappedClass() {
      	return mappedClass;
      }
          
  	public void setParameterValues(Properties parameters) {
  
  		if (mappedClass == null) {
  			
  			throw new IllegalStateException("No mapped class was defined for " + this.getClass().getName());
  		}		
  		
  		super.setParameterValues(parameters);
  	}
  
      @SuppressWarnings("unchecked")
      @Override
      public Class<T> returnedClass() {
          return (Class<T>) TypeHelper.getTypeArguments(AbstractKnownClassHeuristicUserType.class, getClass()).get(0);
      }   
  }