Developing Applications for JSON Tables

As part of its support for JSON tables, HPE Ezmeral Data Fabric Database implements the OJAI API. The OJAI API provides methods for creating, reading, updating, and deleting JSON documents in HPE Ezmeral Data Fabric Database JSON tables. It is available in Java, and starting in MEP 6.0, also available in Node.js, Python, C#, and Go. HPE Ezmeral Data Fabric Database also provides a HPE Ezmeral Data Fabric Database JSON Client API for managing JSON tables and a HPE Ezmeral Data Fabric Database JSON REST API for performing basic operations using HTTP calls.

The following shows the general flow for developing an OJAI client application that accesses HPE Ezmeral Data Fabric Database JSON tables:

  1. Make a connection to HPE Ezmeral Data Fabric Database using the OJAI Connection and Driver interfaces.
  2. Request a HPE Ezmeral Data Fabric Database JSON table using the JSON DocumentStore.
  3. Specify the table, document, or column family operation.
  4. Perform the operation on the table.
  5. Return the results.

For additional information about OJAI, refer to the following:

The HPE Ezmeral Data Fabric Database JSON Client API, implemented in Java, enables you to create, drop, and alter HPE Ezmeral Data Fabric Database JSON tables and column families.

You can also use HTTP calls to create, delete, and query HPE Ezmeral Data Fabric Database JSON tables Using the HPE Ezmeral Data Fabric Database JSON REST API.

API Documentation

The following are links to the detailed API pages:

Parent topic: HPE Ezmeral Data Fabric Database and Apps