[jboss-user] [JBoss Tools] - Re: Error when open SessionFacoty in Eclipse's Hibernate Perspective

[spring liao]

spring liao [https://community.jboss.org/people/spring.liao] created the discussion

"Re: Error when open SessionFacoty in Eclipse's Hibernate Perspective"

To view the discussion, visit: https://community.jboss.org/message/762550#762550

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/*
 *  Copyright 2010, 2011 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 http://www.apache.org/licenses/LICENSE-2.0
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 *  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.
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package org.jadira.usertype.spi.shared;
import org.hibernate.type.SingleColumnType;
public interface ColumnMapper<T, J> {
*      SingleColumnType<? super J> getHibernateType();* 
      int getSqlType();
      T fromNonNullValue(J value);
      T fromNonNullString(String s);
      J toNonNullValue(T value);
      String toNonNullString(T value);
      Class<T> returnedClass();
      Class<J> jdbcClass();
}
All I know is the usertype author change above getHibernateType() return type:
error version:*AbstractStandardBasicType*<? super J> getHibernateType();
fixed version:*SingleColumnType*<? super J> getHibernateType();
This interface has few sub-interfaces and many implementing classes but I don't know they also changed or not.
The author commented on Jira : "Resolved by changing interface specification. Still not clear why this happens though."
Maybe someone can  help to dispel the authour's doubts.
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