FairCom DB API API for Java

Transaction Processing

drivers\java.nav\tutorials\JTDB_Tutorial4.java

Now we will discuss transaction processing as it relates to the FairCom DB API Java API.

Transaction processing provides a safe method by which multiple database operations spread across separate tables/files are guaranteed to be atomic. By atomic, we mean that, within a transaction, either all of the operations succeed or none of the operations succeed. This "either all or none" atomicity ensures that the integrity of the data in related tables/files is secure.

Like all other examples in the c-tree tutorial series, this tutorial simplifies the creation and use of a database into four simple steps: Initialize(), Define(), Manage(), and You’re Done()!

Tutorial #4: Transaction Processing

Here we demonstrate transaction control.

• Initialize() - Connects to the FairCom Database Engine.
• Define() - Defines and creates our four tables/files.
• Manage() - Adds rows/records to multiple tables/files under transaction control.
• Done() - Disconnects from FairCom Database Engine.

Note our simple logic:

public class JTDB_Tutorial4 {

static CTSession MySession;

static CTTable tableCustOrdr;

static CTTable tableOrdrItem;

static CTTable tableItemMast;

static CTTable tableCustMast;

static CTRecord recordCustOrdr;

static CTRecord recordOrdrItem;

static CTRecord recordItemMast;

static CTRecord recordCustMast;

public static void main(String[] args) throws IOException, CTException {

// TODO code application logic here

Initialize();

Define();

Manage();

Done();

}

We suggest opening the source code with your own editor.

Continue now to review these four steps.

In This Section Init Define Manage Done