Oracle 8.1.5 EE- interMedia 8.1.5 Compilations Errors

Question

Greetings,
Im runnin` Oracle 8.1.5 EE, with interMedia 8.1.5 in a windowsNT|2000 Environment and my PATH and CLASSPATH are correctly setup... Running Jakarta Tomcat as the JSP/Servlet Engine as well as JDK 1.2
======= Do I need anything else ?? =======
During compilation I keep running into similar errors like the following (12 of them):
OrdSampleAlbumBean.java:0: The method oracle.jdbc2.Clob getClob(int) declared in class oracle.jdbc.driver.OracleResultSet cannot override the method of the same signature declared in interface java.sql.ResultSet. They must have the same return type.
import java.io.*;
^
OrdSampleAlbumBean.java:0: The method oracle.jdbc2.Clob getClob(java.lang.String) declared in class oracle.jdbc.driver.OracleResultSet cannot override the method of the same signature declared in interface java.sql.ResultSet. They must have the same return type.
import java.io.*;
^
OrdSampleAlbumBean.java:0: The method oracle.jdbc2.Ref getRef(int) declared in class oracle.jdbc.driver.OracleResultSet cannot override the method of the same signature declared in interface java.sql.ResultSet. They must have the same return type.
import java.io.*;
^
The errors seem to be steming from the imports which are:
import java.io.*;
import java.util.*;
import java.sql.*;
import javax.servlet.ServletException;
import oracle.sql.*;
import oracle.jdbc.driver.*;
import oracle.ord.im.OrdImage;
import oracle.ord.im.OrdHttpUploadFile;
Like I said, all the classes and libraries ARE in fact in my path and classpath variables. And interMedia is setup Correctly in Oracle according to imchk.sql
Any help in this matter would be greatly appreciated. Thanks in Advance.

Answer 1

Hi Ramene,
Lets look at a couple of approaches.
The interMedia Web Agent is a web server plugin that supports the Oracle iAS, Apache, iPlanet, Microsoft IIS and Oracle OAS web/application servers on Solaris, NT and Linux (though not all web servers on all platforms, for obvious reasons!). It uses OCI to call PL/SQL procedures that return BLOBs which the Web Agent uses to upload and retrieve multimedia data. On the plus side, it is supported on Oracle 8.1.5. On the minus side, a Java application written using the interMedia Web Agent is not going to be as tightly integrated as an all-Java solution. I don't know if it would be of any use in your particular application environment, but you may also want to look at the interMedia Clipboard. It is a light-weight WinNT application that uses the Web Agent to upload and retrieve multimedia data in an Oracle 8i database. You can find examples of applications that use the Web Agent on OTN. Check out the "Dynamic Web applications using interMedia Web Agent" and "Load rich media content with a browser" links under the interMedia Sample Code tab on OTN.
Looking at an all-Java solution, with your Oracle 8.1.5 and JDK 1.2 configuration, I'm afraid you're always going to be stuck with the incompatiblites between the BLOB support in the Oracle 8.1.5 JDBC 1.1 driver implementation and the JDBC 1.2 interfaces. Again, please let me stress (to anyone reading this note) that this is not because of a problem of with the Oracle 8.1.5 JDBC 1.1 driver - it added support for BLOBs in a version of JDBC that didn't support BLOBs at all. The Oracle 8.1.6 release includes a JDBC 1.2 compliant driver that supports BLOBs according to the JDBC spec.
However, here's a thought, though I don't know if it would be officially supported (I'm not saying it wouldn't be, I just don't know if it is). Mind you, I don't believe the JDK 1.2/1.3 plus Oracle 8.1.5 EE configuration is officially support for that matter. I don't know if its possible for you to do this, but upgrade another system to Oracle 8.1.6. Then take the JDBC 1.2 driver (classes12.zip) and the SQLK/JPub runtime (runtime.zip) from the 8.1.6 installation and copy them somewhere on the 8.1.5 system. Include these files at the beginning of the CLASSPATH and use the 8.1.6 thin JDBC driver to connect to the 8.1.5 database. (The thick driver is unlikely to work as it requires an 8.1.6 version of OCI.) If this does work for you (it works on my systems), then at least you'll have something going, although it won't perform as well as the thick driver.
Re: "I need to support Oracle 8.0.5". I hope this was a typo and you don't really need to support 8.0.5. Of course, 8.0.5 does have BLOBs, but I'm not sure how robust the Java support for BLOBs was back then - that was quite a long time ago (at least it seems that way for someone working on 9i).
I guess the bottom line here is to upgrade to 8.1.6 as soon as possible to get full JDK 1.2 support. In the meantime, I Hope this helps,
Simon
null