1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859 |
- /*
- * Copyright (c) 2006-2017 DMDirc Developers
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
- * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
- * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
- * OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
- package com.dmdirc;
-
- import com.dmdirc.interfaces.Connection;
- import com.dmdirc.parser.interfaces.Parser;
-
- import javax.annotation.Nonnull;
-
- /**
- * Abstracts some behaviour used by Event Handlers.
- */
- public abstract class EventHandler {
-
- /**
- * Creates a new instance.
- */
- protected EventHandler() {
- }
-
- /**
- * Registers all callbacks that this event handler implements with the owner's parser.
- */
- public void registerCallbacks() {
- getConnection().getParser().get().getCallbackManager().subscribe(this);
- }
-
- /**
- * Unregisters all callbacks that have been registered by this event handler.
- */
- public void unregisterCallbacks() {
- getConnection().getParser().map(Parser::getCallbackManager).ifPresent(cm -> cm.unsubscribe(this));
- }
-
- /**
- * Retrieves the connection that this event handler is for.
- *
- * @since 0.6.3m1
- * @return This EventHandler's expected connection.
- */
- @Nonnull
- protected abstract Connection getConnection();
-
- }
|