/*
* 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.nifi.provenance.lineage;
public interface LineageNode {
/**
* @return the type of the LineageNode
*/
LineageNodeType getNodeType();
/**
* @return the UUID of the FlowFile for which this Node was created
*/
String getFlowFileUuid();
/**
* @return the UUID for this LineageNode
*/
String getIdentifier();
/**
* @return the timestamp that corresponds to this Node. The meaning of the
* timestamp may differ between implementations. For example, a
* {@link ProvenanceEventLineageNode}'s timestamp indicates the time at
* which the event occurred. However, for a Node that represents a
* FlowFile, for example, the timestamp may represent the time at which the
* FlowFile was created
*/
long getTimestamp();
}