As part of learning java, I have written java to loop through a list of an <object> and call an oracle database procedure for each object, passing individual values from the object rather than just the entire object. It runs fine. It does what it needs to do and seems fairly efficient, but I may redesign it for improved efficiency, improved modularity, and perhaps an improved design for error handling, etc.
I could redesign it to use an oracle type, and pass the list of object to the database, store all values in a global temp table, and then finish all other processing from that point based on data in the global temp table.
This object list could be in the size of one to thousands. I will not know in advance and it may grow in the future.
Should I be concerned with the size of the list I am passing to the database? Should I instead pass in batch sets using update batching functionality? I know there is also the option to insert into the table from the java, too. I am exploring options and the benefits and drawbacks of each right now.
I am reading through many websites, and specifically these to learn more: http://betteratoracle.com/posts/26-passing-arrays-between-java-and-oracle-procedures
Thank you for any feedback or direction on what I should be considering with the design.