/*
* Licensed to Metamarkets Group Inc. (Metamarkets) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Metamarkets 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 io.druid.data.input;
/**
* Committer includes a Runnable and a Jackson-serialized metadata object containing the offset
*/
public interface Committer extends Runnable
{
/**
* @return A json serialized represenation of commit metadata,
* which needs to be serialized and deserialized by Jackson.
* Commit metadata can be a complex type, but we recommend keeping it to List/Map/"Primitive JSON" types
* */
public Object getMetadata();
}