Create a Data Access Object for Oracle Financials Cloud Data using 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 Oracle Financials Cloud integrates connectivity to live Oracle Financials Cloud data in Java applications. By pairing these technologies, you gain simple, programmatic access to Oracle Financials Cloud data. This article explains how to build a basic Data Access Object (DAO) and the accompanying code to read Oracle Financials Cloud data.

Create a DAO for the Oracle Financials Cloud Invoices 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 MyInvoicesDAO {
 //request specific data from Oracle Financials Cloud (String type is used for simplicity)
 @SqlQuery("SELECT Amount FROM Invoices WHERE Supplier = :supplier")
 String findAmountBySupplier(@Bind("supplier") String supplier);

 /*
 * close with no args is used to close the connection
 */
 void close();
}

Open a Connection to Oracle Financials Cloud

Collect the necessary connection properties and construct the appropriate JDBC URL for connecting to Oracle Financials Cloud.

Using Basic Authentication

You must set the following to authenticate to Oracle ERP:

• Url: The Url of the account to connect to. Typically, the URL of your Oracle Cloud service. For example, https://servername.fa.us2.oraclecloud.com.
• User: The username of your account.
• Password: The password of your account.

Built-in Connection String Designer

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

java -jar cdata.jdbc.oracleerp.jar

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

A connection string for Oracle Financials Cloud will typically look like the following:

jdbc:oracleerp:Url=https://abc.oraclecloud.com;User=user;Password=password;

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:oracleerp:Url=https://abc.oraclecloud.com;User=user;Password=password;");
MyInvoicesDAO dao = dbi.open(MyInvoicesDAO.class);

//do stuff with the DAO

dao.close();

Read Oracle Financials Cloud Data

With the connection open to Oracle Financials Cloud, simply call the previously defined method to retrieve data from the Invoices entity in Oracle Financials Cloud.

//disply the result of our 'find' method
String amount = dao.findAmountBySupplier("CData Software");
System.out.println(amount);

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