NTM - The Java Implementation

I strongly advice you look at the Example classes before looking at the Ntm class.

CAUTION - I make no claims that this code is production quality. If you decide to use it, verify that cursors are closed, exceptions are trapped and the code does exactly what you want it to do so. While I'll be happy to help you resolve any issues, I am not promising this code will work in your environment or solve the business problem you're grappling with.

• ConnectToDb - shows how to make a JDBC connection. It's not part of the NTM code, but I keep it around to remind myself how the Connection object is created.
• Example01 - Shows how to insert many nodes at a single level.
• Example02 - Shows how to indent nodes and use the get_ancestors method.
• Example03 - Shows how to insert node D as a sibling of node B.
• Ntm - Contains the methods that interact directly with the database.
• NtmException - Wraps exceptions for ease of trapping.
• NtmFk - The Ntm class allows nodes to have multiple parents. However, many applications don't require multiple parents. This class is incomplete. Let me know if you need help to add functionality.
• ToHex - This class helps the UUID class to make hex strings.
• UUID - This class uses a crytographically secure method to generate random 32-character strings. In theory, the strings generated will never, ever be duplicated. Let me know if you find a flaw in its algortihm.
• MySQL_JDBC.jar - I used MySQL and Oracle to test these classes. This is the MySQL driver that I used.