org.glassfish.hk2.api.ErrorService Maven / Gradle / Ivy
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package org.glassfish.hk2.api;
import org.jvnet.hk2.annotations.Contract;
/**
* This interface should be implemented by those who wish to be
* notified of error conditions that occur within HK2. These
* errors are those that might happen during normal processing of
* HK2 requests
*
* An implementation of ErrorService must be in the Singleton scope.
* Implementations of ErrorService will be instantiated as soon as
* they are added to HK2 in order to avoid deadlocks and circular references.
* Therefore it is recommended that implementations of ErrorService
* make liberal use of {@link javax.inject.Provider} or {@link IterableProvider}
* when injecting dependent services so that these services are not instantiated
* when the ErrorService is created
*
* @author jwells
*
*/
@Contract
public interface ErrorService {
/**
* This method is called when a failure occurs in the system. This method may
* use any {@link ServiceLocator} api. For example, an implementation of this method might want
* to remove a descriptor from the registry if the error can be determined to be a
* permanent failure.
*
* @param errorInformation Information about the error that occurred
* @throws MultiException if this method throws an exception that exception will be thrown back to
* the caller wrapped in another MultiException if the error is of type {@link ErrorType#FAILURE_TO_REIFY}.
* If the error is of type {@link ErrorType#DYNAMIC_CONFIGURATION_FAILURE} or {@link ErrorType#SERVICE_CREATION_FAILURE}
* or {@link ErrorType#SERVICE_DESTRUCTION_FAILURE} then any exception thrown from this
* method is ignored and the original exception is thrown back to the caller
*/
public void onFailure(ErrorInformation errorInformation)
throws MultiException;
}