CS357: Database System Implementation Homework Assignment 2 -- The File Manager
Given:
Wednesday, 30 January
Due Date:
Wednesday, 6 February @ 5pm
1. Do exercise 12.1 from the text.
2. Do exercise 12.18 from the text. This exercise requires you to modify the code in class Page so that strings are implemented as a sequence of characters
ending with the delimiter character '\0'. Note that your revised getString and setString
methods will necessarily be quite different from how they currently
are. Currently, a string is converted into a byte array and
stored "en masse" in the page. Your code will instead need to
process a string character by character. Also note that you will
need to change the method that computes the size of a string, taking
into consideration the fact that characters in Java are always 2 bytes
long.
3.
Write a program to test your code from #2. This code
shouldn't use JDBC; instead, it should be similar to Figure 12-12 of
the text. For example, it could write some strings to a page and
read them back. (You also should make sure that SimpleDB still
works when you replace its version of Page with yours. But it is always good to write your own test code too.)
Submit your answer to the first exercise on paper, and
submit a printout of your code for the second and third exercises.
If your code doesn't work, include a note explaining the
situation and what you think is wrong.