io.methvin.watcher

Interface DirectoryChangeListener

All Known Implementing Classes:

ChangeSetListener, OnTimeoutListener

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface DirectoryChangeListener

A listener that is called when file change events occur or when exceptions occur while watching.

Method Summary

Modifier and Type	Method and Description
default boolean	isWatching() The watcher will stop watching after this method returns false.
static DirectoryChangeListener	of(DirectoryChangeListener... listeners)
void	onEvent(DirectoryChangeEvent event)
default void	onException(java.lang.Exception e) A handler for uncaught exceptions.
default void	onIdle(int count)

Method Detail

of

static DirectoryChangeListener of(DirectoryChangeListener... listeners)

onEvent

void onEvent(DirectoryChangeEvent event)
      throws java.io.IOException

Throws:

java.io.IOException

isWatching

default boolean isWatching()

The watcher will stop watching after this method returns false.

onIdle

default void onIdle(int count)

onException

default void onException(java.lang.Exception e)

A handler for uncaught exceptions. Throwing an exception from here will terminate the watcher.