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Object-Relational Mapping (ORM) with Dynamics 365 Business Central Data Entities in Java

Object-relational mapping (ORM) techniques make it easier to work with relational data sources and can bridge your logical business model with your physical storage model. Follow this tutorial to integrate connectivity to Dynamics 365 Business Central data into a Java-based ORM framework, Hibernate.

You can use Hibernate to map object-oriented domain models to a traditional relational database. The tutorial below shows how to use the CData JDBC Driver for Dynamics 365 Business Central to generate an ORM of your Dynamics 365 Business Central repository with Hibernate.

Though Eclipse is the IDE of choice for this article, the CData JDBC Driver for Dynamics 365 Business Central works in any product that supports the Java Runtime Environment. In the Knowledge Base you will find tutorials to connect to Dynamics 365 Business Central data from IntelliJ IDEA and NetBeans.

Install Hibernate

Follow the steps below to install the Hibernate plug-in in Eclipse.

  1. In Eclipse, navigate to Help -> Install New Software.
  2. Enter "http://download.jboss.org/jbosstools/updates/stable/" in the Work With box.
  3. Enter "Hibernate" into the filter box.
  4. Select Hibernate Tools.

Start A New Project

Follow the steps below to add the driver JARs in a new project.

  1. Create a new project. Select Java Project as your project type and click Next. Enter a project name and click Finish.
  2. Right-click the project and click Properties. Click Java Build Path and then open the Libraries tab.
  3. Click Add External JARs to add the cdata.jdbc.d365businesscentral.jar library, located in the lib subfolder of the installation directory.

Add a Hibernate Configuration File

Follow the steps below to configure connection properties to Dynamics 365 Business Central data.

  1. Right-click on the new project and select New -> Hibernate -> Hibernate Configuration File (cfg.xml).
  2. Select src as the parent folder and click Next.
  3. Input the following values:

    • Database dialect: SQL Server
    • Driver class: cdata.jdbc.d365businesscentral.D365BusinessCentralDriver
    • Connection URL: A JDBC URL, starting with jdbc:d365businesscentral: and followed by a semicolon-separated list of connection properties.

      Dynamics 365 Business Central への認証には、User およびAccessKey プロパティが必要です。

      データに接続するには、OrganizationUrl を指定します。OrganizationUrl は、 http://businesscentral.dynamics.com/abc123/ などのBusiness Central アカウントへのエンドポインであるか、Web サービスのルートを参照する必要があります。OrganizationUrl を指定する方法 および利用可能なエンドポイントについての詳細は、Business Central エンドポイント を参照してください。 組織内に複数の会社がある場合は、どの会社に接続するかを特定するためにCompany を指定する必要があります。 会社が1つだけの場合は、Company を指定する必要はありません。

      Dynamics 365 Business Central に認証するには、User およびAccessKey 接続プロパティを指定します。Microsoft では、これらをテストおよび開発目的で推奨します。ただし、運用環境での使用は推奨していません。 User およびAccessKey の値を取得するには、Dynamics 365 Business Central の[ユーザー]ページに移動して[編集]をクリックします。User Name および Web Service Access Key の値は、User およびPassword 接続文字列プロパティとして入力する値です。User Name はE メールアドレス ではありません。短縮されたユーザー名です。

      Microsoft では、OAuth 認証を使用する本番ユースケースを推奨します。詳細については、ヘルプドキュメントの「OAuth 認証の使用」を参照してください。

      A typical JDBC URL is below:

      jdbc:d365businesscentral:OrganizationUrl=https://myaccount.financials.dynamics.com/;

Connect Hibernate to Dynamics 365 Business Central Data

Follow the steps below to select the configuration you created in the previous step.

  1. Switch to the Hibernate Configurations perspective: Window -> Open Perspective -> Hibernate.
  2. Right-click on the Hibernate Configurations panel and click Add Configuration.
  3. Click the Browse button and select the project.
  4. For the Configuration file field, click Setup -> Use Existing and select the location of the hibernate.cfg.xml file (inside src folder in this demo).
  5. Expand the Database node of the newly created Hibernate configurations file.

Reverse Engineer Dynamics 365 Business Central Data

Follow the steps below to generate the reveng.xml configuration file. You will specify the tables you want to access as objects.

  1. Switch back to the Package Explorer.
  2. Right-click your project, select New -> Hibernate -> Hibernate Reverse Engineering File (reveng.xml). Click Next.
  3. Select src as the parent folder and click Next.
  4. In the Console configuration drop-down menu, select the Hibernate configuration file you created above and click Refresh.
  5. Expand the node and choose the tables you want to reverse engineer. Click Finish when you are done.

Configure Hibernate to Run

Follow the steps below to generate plain old Java objects (POJO) for the Dynamics 365 Business Central tables.

  1. From the menu bar, click Run -> Hibernate Code Generation -> Hibernate Code Generation Configurations.
  2. In the Console configuration drop-down menu, select the Hibernate configuration file you created in the previous section. Click Browse by Output directory and select src.
  3. Enable the Reverse Engineer from JDBC Connection checkbox. Click the Setup button, click Use Existing, and select the location of the hibernate.reveng.xml file (inside src folder in this demo).
  4. In the Exporters tab, check Domain code (.java) and Hibernate XML Mappings (hbm.xml).
  5. Click Run.

One or more POJOs are created based on the reverse-engineering setting in the previous step.

Insert Mapping Tags

For each mapping you have generated, you will need to create a mapping tag in hibernate.cfg.xml to point Hibernate to your mapping resource. Open hibernate.cfg.xml and insert the mapping tags as so:

cdata.d365businesscentral.D365BusinessCentralDriver jdbc:d365businesscentral:OrganizationUrl=https://myaccount.financials.dynamics.com/; org.hibernate.dialect.SQLServerDialect

Execute CRUD Commands

Using the entity you created from the last step, you can now perform CRUD commands. For example:

import java.util.*; import org.hibernate.*; import org.hibernate.cfg.Configuration; public class App { public static void main(final String[] args) { Session session = new Configuration().configure().buildSessionFactory().openSession(); String SELECT = "FROM Accounts"; Query q = session.createQuery(SELECT); List resultList = (List) q.list(); for(Accounts s: resultList){ System.out.println(s.getaccountid()); System.out.println(s.getName()); } } }
 
 
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