javax.jmi.reflect.AlreadyExistsException Maven / Gradle / Ivy
package javax.jmi.reflect;
/** Exception thrown by refCreateInstance and create methods
* when a client attempts to create the second instance of a singleton.
*
I think we should rather return the existing instance of singleton
* from the create method without throwing this exception. This behaviour is
* more common for singletons.
*/
@SuppressWarnings("serial")
public class AlreadyExistsException extends JmiException {
private final RefObject existing;
/**
* Constructs new AlreadyExistsException without detail message.
* @param existing existing singleton instance
*/
public AlreadyExistsException(RefObject existing) {
super(existing.refMetaObject());
this.existing = existing;
}
/**
* Constructs an AlreadyExistsException with the specified detail message.
* @param existing existing singleton instance
* @param msg the detail message.
*/
public AlreadyExistsException(RefObject existing, String msg) {
super(existing.refMetaObject(), msg);
this.existing = existing;
}
/**
* Returns existing instance of singleton.
* @return existing singleton instance
*/
public RefObject getExistingInstance() {
return existing;
}
}