text: <!-- SPDX-License-Identifier: CC-BY-4.0 -->
  <!-- Copyright Contributors to the ODPi Egeria project. -->
  
  # Local Repository's Event Mapper Connector
  
  The Event Mapper connector provides a common API for
  specific implementations of OMRS Event Mappers to implement.
  
  Event mappers are needed in [repository proxy](../../../../admin-services/docs/concepts/repository-proxy.md)
  servers if the third party technology that it is
  integrating into the open metadata repository cohort
  also has its own mechanisms for maintaining metadata.
  
  The event mapper's role is to notify the cohort of any changes to
  the metadata mastered in the third party repository
  that has occurred through the third party technology's own mechanisms.
  
  Since each event mapper is tied to a third party
  technology, core Egeria does not supply any implementations of
  this connector.  There are, however, the following
  implementations available:
  
  * **[Event Mapper for Apache Atlas](https://github.com/odpi/egeria-connector-hadoop-ecosystem)**
  * **[Event Mapper for IBM Information Governance Catalog](https://github.com/odpi/egeria-connector-ibm-information-server)**
  
  
  ----
  Return to [repository services connectors](.).
  
  
  ----
  License: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/),
  Copyright Contributors to the ODPi Egeria project.
  