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PayloadMapper.java
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PayloadMapper.java
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/*
* Copyright (c) 2019 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.connectivity.service.mapping;
/**
* Classes implementing {@link PayloadMapper} are loaded on startup to be referenced by its alias in payload mapping
* definitions of a {@link org.eclipse.ditto.connectivity.model.Connection}. If the mapper requires no
* {@link org.eclipse.ditto.connectivity.model.MappingContext} for initialization it can also be directly used in the
* list of mappings of a {@link org.eclipse.ditto.connectivity.model.Source} or a
* {@link org.eclipse.ditto.connectivity.model.Target} using one of the defined aliases.
*/
public interface PayloadMapper {
/**
* @return the alias to reference this {@link PayloadMapper}.
*/
String getAlias();
default int getPriority() {
return 0;
}
}