/*
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*
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* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
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*
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* only the GPL Version 2, indicate your decision by adding "[Contributor]
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/*
* EJBQLException.java
*
* Created on November 12, 2001
*/
package com.sun.jdo.spi.persistence.support.ejb.ejbqlc;
/**
* This class represents errors reported by the EJBQL compiler.
*
* @author Michael Bouschen
*/
public class EJBQLException
extends RuntimeException
{
/** The Throwable that caused this EJBQLException. */
Throwable cause;
/**
* Creates a new <code>EJBQLException</code> without detail message.
*/
public EJBQLException()
{
}
/**
* Constructs a new <code>EJBQLException</code> with the specified
* detail message.
* @param msg the detail message.
*/
public EJBQLException(String msg)
{
super(msg);
}
/**
* Constructs a new <code>EJBQLException</code> with the specified
* detail message and cause.
* @param msg the detail message.
* @param cause the cause <code>Throwable</code>.
*/
public EJBQLException(String msg, Throwable cause)
{
super(msg);
this.cause = cause;
}
/**
* Returns the cause of this <code>EJBQLException</code> or
* <code>null</code> if the cause is nonexistent or unknown.
* @return the cause of this or <code>null</code> if the
* cause is nonexistent or unknown.
*/
public Throwable getCause()
{
return cause;
}
/**
* The <code>String</code> representation includes the name of the class,
* the descriptive comment (if any),
* and the <code>String</code> representation of the cause
* <code>Throwable</code> (if any).
* @return the <code>String</code>.
*/
public String toString() {
// calculate approximate size of the String to return
StringBuffer sb = new StringBuffer();
sb.append (super.toString());
// include cause Throwable information
if (cause != null) {
sb.append("\n"); //NOI18N
sb.append("Nested exception"); //NOI18N
sb.append("\n"); //NOI18N
sb.append(cause.toString());
}
return sb.toString();
}
}
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