| com.jcorporate.expresso.kernel.ContainerListener
| ContainerListener | | public interface ContainerListener extends EventListener(Code) | | This class is to provide for event notifications whenever a parent
container changes. Event Handers should work hard to be 'quick' about their
processing so that they don't hold up the hold system while events are
getting handled
Also Please Note: Implementers of the Container Listener should
ideally have their event handlers marked synchronized.
author:
Michael Rimov |
| onAdd | | public void onAdd(ExpressoComponent newComponent) throws ContainerVetoException(Code) | | Called whenever a new component is added to the container. The listener
has the opportunity to strenusously object to the component being added
by throwing a ContainerVetoException. This should only occur whenever
installing the new component would seriously harm the operation of the
current controller... ie extreme cases only.
Parameters:
newComponent - the new component instance getting installed.
throws:
ContainerVetoException - if the component should NOT be installedfor some reason or another. |
| onInstall | | public void onInstall(ExpressoComponent installingComponent, InstallLog log)(Code) | | Called whenever a component is installed into a component container.
Since add() is called first, we don't have the option to throw
ContainerVetoException since in onAdd is the chance to do so
Parameters:
installingComponent - the component that is getting installed
Parameters:
log - The InstallLog that allows us to do any final 'output notes' |
| onRemove | | public void onRemove(ExpressoComponent removingComponent) throws ContainerVetoException(Code) | | Called whenever a component is removed from the container. If the removal
if the specified component causes SERIOUS problem with the operation of the
current component, the component can throw a ContainerVetoException, however
this should only occur in very rare cases.
Parameters:
removingComponent - The component being removed |
| onUninstall | | public void onUninstall(ExpressoComponent uninstallComponent, InstallLog log)(Code) | | Called whenever a component is uninstalled from the ComponentContainer
Parameters:
uninstallComponent - the component that is getting uninstalled
Parameters:
log - The InstallLog that allows us to do any final 'output notes' |
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