/*

  * Copyright 2005-2008 The Kuali Foundation

  * 

  * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php

  * 

  * 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.kuali.rice.core.framework.persistence.ojb.conversion;

 import org.apache.ojb.broker.accesslayer.conversions.FieldConversion;

 public abstract class OjbCharBooleanConversionBase implements FieldConversion {

     protected abstract String getTrueValue();

     protected abstract String getFalseValue();

     /**

      * @see FieldConversion#javaToSql(Object)

      */

     public Object javaToSql(Object source) {

         Object result = source;

         if (source instanceof Boolean) {

             if (source != null) {

                 Boolean b = (Boolean) source;

                 result = b.booleanValue() ? getTrueValue() : getFalseValue();

             }

         }

         return result;

     }

     /**

      * @see FieldConversion#sqlToJava(Object)

      */

     public Object sqlToJava(Object source) {

         Object result = source;

         if (source instanceof String) {

             if (source != null) {

                 String s = (String) source;

                 result = getTrueValue().equals(s) ? Boolean.TRUE : getFalseValue().equals(s) ? Boolean.FALSE : null;

                 if (result == null) {

                     throw new RuntimeException("Expected '" + getTrueValue() + "' or '" + getFalseValue() + "' but saw '" + source + "'");

                 }

             }

         }

         return result;

     }

 }