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Create a Data Access Object for Streak Data using JDBI

A brief overview of creating a SQL Object API for Streak data in JDBI.

JDBI is a SQL convenience library for Java that exposes two different style APIs, a fluent style and a SQL object style. The CData JDBC Driver for Streak integrates connectivity to live Streak data in Java applications. By pairing these technologies, you gain simple, programmatic access to Streak data. This article walks through building a basic Data Access Object (DAO) and the accompanying code to read Streak data.

Create a DAO for the Streak Users Entity

The interface below declares the desired behavior for the SQL object to create a single method for each SQL statement to be implemented.

public interface MyUsersDAO { //request specific data from Streak (String type is used for simplicity) @SqlQuery("SELECT Email FROM Users WHERE Email = :email") String findEmailByEmail(@Bind("email") String email); /* * close with no args is used to close the connection */ void close(); }

Open a Connection to Streak

Collect the necessary connection properties and construct the appropriate JDBC URL for connecting to Streak.

Use the following steps to generate a new API key for authenticating to Streak.

  1. Navigate to Gmail
  2. Click on the Streak dropdown to the right of the search bar
  3. Select the Integrations button. This will open a window where you can view existing integrations and create new API keys.
  4. Under the Streak API section of integrations, click the button to Create New Key.

Built-in Connection String Designer

For assistance in constructing the JDBC URL, use the connection string designer built into the Streak JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.

java -jar cdata.jdbc.streak.jar

Fill in the connection properties and copy the connection string to the clipboard.

A connection string for Streak will typically look like the following:

jdbc:streak:ApiKey=8c84j9b4j54762ce809ej6a782d776j3;

Use the configured JDBC URL to obtain an instance of the DAO interface. The particular method shown below will open a handle bound to the instance, so the instance needs to be closed explicitly to release the handle and the bound JDBC connection.

DBI dbi = new DBI("jdbc:streak:ApiKey=8c84j9b4j54762ce809ej6a782d776j3;"); MyUsersDAO dao = dbi.open(MyUsersDAO.class); //do stuff with the DAO dao.close();

Read Streak Data

With the connection open to Streak, simply call the previously defined method to retrieve data from the Users entity in Streak.

//disply the result of our 'find' method String email = dao.findEmailByEmail("user@domain.com"); System.out.println(email);

Since the JDBI library is able to work with JDBC connections, you can easily produce a SQL Object API for Streak by integrating with the CData JDBC Driver for Streak. Download a free trial and work with live Streak data in custom Java applications today.