September 2011
Intermediate to advanced
468 pages
15h 37m
English
book
Expert Oracle and Java Security: Programming Secure Oracle Database Applications with Java
by David Coffin
Content preview from Expert Oracle and Java Security: Programming Secure Oracle Database Applications with Java
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Java Packages
We don't have the Java code of the Oracle JDBC drivers, but we can deduce that the code of the ARRAY class (mentioned previously) was in a file named ARRAY.java. And in that file was a package statement:
package oracle.sql;
Notice how the package name correlates with the directory tree, using a dot (.) separator character for the package, instead of a slash for the directory. At Oracle, the corporate developers keep the file ARRAY.java in a directory named sql, which is in a directory named oracle. They compile the class in a matching directory tree. And they create the JAR file by collecting all the compiled content, starting with the oracle directory.
You need to keep this fundamental concept in mind: packages equal directory ...
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