Package org.apache.qpid.server.model

Interface ConfigurationChangeListener

All Known Implementing Classes:

AbstractConfigurationChangeListener, StoreConfigurationChangeListener

public interface ConfigurationChangeListener

Method Summary

Modifier and Type	Method	Description
void	attributeSet(ConfiguredObject<?> object, String attributeName, Object oldAttributeValue, Object newAttributeValue)
void	bulkChangeEnd(ConfiguredObject<?> object)	Inform the listener that the changes announced by bulkChangeStart are complete.
void	bulkChangeStart(ConfiguredObject<?> object)	Inform the listener that several attributes of an object are about to change.
void	childAdded(ConfiguredObject<?> object, ConfiguredObject<?> child)
void	childRemoved(ConfiguredObject<?> object, ConfiguredObject<?> child)
void	stateChanged(ConfiguredObject<?> object, State oldState, State newState)	Inform the listener that the passed object has changed state

Method Detail

stateChanged

void stateChanged(ConfiguredObject<?> object,
                  State oldState,
                  State newState)

Inform the listener that the passed object has changed state

Parameters:

object - the object whose state has changed

oldState - the state prior to the change

newState - the state after the change

childAdded

void childAdded(ConfiguredObject<?> object,
                ConfiguredObject<?> child)

childRemoved

void childRemoved(ConfiguredObject<?> object,
                  ConfiguredObject<?> child)

attributeSet

void attributeSet(ConfiguredObject<?> object,
                  String attributeName,
                  Object oldAttributeValue,
                  Object newAttributeValue)

bulkChangeStart

void bulkChangeStart(ConfiguredObject<?> object)

Inform the listener that several attributes of an object are about to change. The listener may choose to defer any action in attributeSet until bulkChangeEnd is called. There should not be multiple calls to bulkChangeStart without matching bulkChangeEnd calls in between. There should be no calls to attributeSet for objects other than the one passed as an argument until bulkChangeEnd is called. There should be no call to childRemove between bulkChangeStart/-End calls.

Parameters:

object - the object whose state is about to change

See Also:

bulkChangeEnd(org.apache.qpid.server.model.ConfiguredObject<?>)

bulkChangeEnd

void bulkChangeEnd(ConfiguredObject<?> object)

Inform the listener that the changes announced by bulkChangeStart are complete. The listener who has chosen to defer any action in attributeSet after bulkChangeStart was called should now act on those changes. A call to bulkChangeEnd without a prior matching call to bulkChangeStart should have no effect.

Parameters:

object - the object whose state has changed

See Also:

bulkChangeStart(org.apache.qpid.server.model.ConfiguredObject<?>)