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/**********************************************************************
* This file is part of "Object Teams Dynamic Runtime Environment"
*
* Copyright 2003, 2010 Berlin Institute of Technology, Germany, and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Please visit http://www.eclipse.org/objectteams for updates and contact.
*
* Contributors:
* Berlin Institute of Technology - Initial API and implementation
**********************************************************************/
package org.objectteams;
/**
* This exception is thrown by the OT/J infra structure if a role for a given base object
* was requested during lifting, but a role with an incompatible type was already
* registered for that base object. Can only happen if a compile time warning occurred.
* @author Stephan Herrmann
*/
public class WrongRoleException extends RuntimeException {
/**
*
*/
private static final long serialVersionUID = 1L;
private Class<?> clazz;
private Object base;
private Object role;
/**
* @param clazz
* @param base
* @param role
*/
public WrongRoleException (Class<?> clazz, Object base, Object role) {
this.clazz = clazz;
this.base = base;
this.role = role;
}
@Override
public String getMessage() {
String baseClazz = base.getClass().getName();
String roleClazz = role.getClass().getName();
return "The compiler has warned you about ambiguous role bindings.\n"
+ "Now lifting to " + clazz
+ " fails with the following objects\n"
+ "(see OT/J language definition para. 2.3.4(d)):\n"
+ "Provided:\n Base object: " + base + "\n" + " Base type: "
+ baseClazz + "\n"
+ "Found in cache:\n Role object: " + role + "\n"
+ " Role type: " + roleClazz;
}
}
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