jdedwards

On an average, how much time does it take to become proficient in development using JD Edwards? Is it easy to learn? Are there any prerequisites? I'm assuming you're interested on learning the development skills of JD Edwards, not the business processes that the system actually implements. There are 2 versions of JDE. One runs over AS/400 plataforms, DB2 database and uses RPG (language) to implement reports and functionalities. I'm not acquainted with that version (did very few interface jobs and they were all complicated due to DB2's differences from my usual flavours of databases - Oracle or

The topic at hand is a messy domain-specific problem working with dates in Oracle's ERP software called JD Edwards. Its detail is documented in this question . Before writing wrapper classes for handling the dates and times from JD Edwards, I want to know if JodaTime or Java 8 introduced any special support for this unique time format, or if I'll have to do significant string manipulation regardless of the libraries I use. This is an obscure problem, so please only respond if you have specific knowledge of this problem, and/or JodaTime/Java 8/JSR 310. ADDITION: Per Basil Bourque's request,

I am writing code to convert from a Gregorian date to a JDE ( J.D.Edwards ) Julian date. Note: a JDE Julian date is different from the normal usage of the term Julian date . As far as I can work out from Googling, the definition of a JDE Julian date is: 1000*(year-1900) + dayofyear where year is the 4-digit year (e.g. 2009), and dayofyear is 1 for 1st January, and counts up all year to either 365 or 366 for 31st December (depending whether this is a leap year). My question is this: are years before 1900 supported? If so, does the above formula still hold, or should it be this: 1000*(year-1900)