Logical persistent RMS - etc. storage.

I need to set up a high score list for my game. It seems that RMS is the way forward - persistent, but no signature not required, I understand a position elsewhere.

I implemented the code example for a large list of scores and checked the data is persisted, using the Simulator output and debug. I changed the sort order of output, by exchanging the positions of PRECEDES and FOLLOWS, in return for the method lines compares.

Looks like I'm to use the class RecordStore to press the code example. I would like to...

(1) use the getNumRecords() to find out how they are.

(2) If this number is lower than in, say, 10, add the new partition. or...

(3) if that number is 10 or more, make sure that the records are sorted in the correct order (ah, what is happening automatically, because the comparison code is always executed in the class, this "Java path" is cool, but foreigners) go then, in that order (they are in this order, no matter what else I can do, I think) and find the record 10. Save the record ID for possible use.

(4) if the new partition is more than a score of 10, add the new partition. Just use the example addScore method - well, because it seems a bit complex.

(5) if there were 10 scores, and I added another, I would remove the lowest and retain the record size limited to 10. Since I was the record ID from step 3, I can use deleteRecord on it.

As I read this, it seems doable. Not the PC right now, try it. I'm missing or misunderstood anything?

I got the deleteRecord work. He was wrong to try to do when you work with an enumerated list. While the closure of the enumerated list to check if a new partition should be added, if I find that a new record would total more than 10, I save the last record in global int ID, deleteThis.

Then, in the addScore method, if I find that there is a value in deleteThis, I use deleteRecord to get rid of him. So... should never be a case where there are multiple records to remove.

Tags: BlackBerry Developers

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