/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.beam.sdk.transforms.reflect;
import org.apache.beam.sdk.transforms.DoFn;
import org.apache.beam.sdk.transforms.DoFn.OnTimer;
import org.apache.beam.sdk.transforms.DoFn.TimerId;
/**
* Provides {@link OnTimerInvoker} instances for invoking a particular {@link TimerId}
* on a particular {@link DoFn}.
*/
interface OnTimerInvokerFactory {
/**
* Returns an invoker that will call the given {@link DoFn DoFn's} {@link OnTimer @OnTimer} method
* for the given {@code timerId}.
*/
<InputT, OutputT> OnTimerInvoker<InputT, OutputT> forTimer(
DoFn<InputT, OutputT> fn, String timerId);
}