Again and again : CLOB,SQLJ and JDEV 2.0 (BUG!!!)

Question

It's the same message than before but with more informations for
jdev. Team
I use this version of ORACLE (Evaluation version):
Oracle8 Enterprise Edition Release 8.0.5.0.0 - Production
PL/SQL Release 8.0.5.0.0 - Production
CORE Version 4.0.5.0.0 - Production
TNS for 32-bit Windows: Version 8.0.5.0.0 - Production
NLSRTL Version 3.3.2.0.0 - Production
I'm beginning to develop this project with JDeveloper 1.1
(Evaluation version) and now, i continue this project with jdev
2.0 Beta.
With Jdev. 1.1 , I can compile "with Warning" and when i launch
It, It's the Crach. (It's an Datatype message Error)
With Jdev 2.0 Beta, I cannot compile.
After reading the ORACLE DOCUMENTATION about using of CLOB in a
SQLJ file, i try this:
package Pack_ConnexionOracle;
import sqlj.runtime.*;
import sqlj.runtime.ref.*;
import java.sql.*;
// Importing the Oracle Jdbc driver package makes the code more
readable
import oracle.jdbc.driver.*;
public class OraCrit
public OraCrit(String Surl,String Susr,String Spwd)
try
DriverManager.registerDriver(new
oracle.jdbc.driver.OracleDriver());
DefaultContext.setDefaultContext(new DefaultContext
(Surl,Susr,Spwd));
catch(Exception ex)
ex.printStackTrace();
public String SQLRecupRequeteSQL(int iNumQuery) throws
SQLException
long lLongSQL;
OracleClob ORARequeteSQL;
String sRequeteSQL = new String();
#sql { select requete_sql into :ORARequeteSQL from requete where
num_query=:iNumQuery };
#sql lLongSQL={values(dbms_lob.getlength(:ORARequeteSQL)) };
#sql { call dbms_lob.read
(:ORARequeteSQL,:lLongSQL,0,:sRequeteSQL) };
return(sRequeteSQL);
at the line 61:
#sql { select requete_sql into :ORARequeteSQL from requete where
num_query=:iNumQuery };
I have this compilation error:
Error:(61) Liste of links Variables INTO...Prohibited: illegal
expression
at the line 62:
#sql lLongSQL={values(dbms_lob.getlength(:ORARequeteSQL)) };
I have this compilation error:
Error:(62) The Java type doesn't exist for the host element n 1..
at the line 63:
#sql { call dbms_lob.read
(:ORARequeteSQL,:lLongSQL,0,:sRequeteSQL) };
Same message than at line 62.
Is it possible to use a CLOB in SQLJ with JDeveloper 2.0 Beta?
HELP ME PLEASE,
Thanks a lot.............
null

Answer 1

David,
I think the problem is that the code you have written is for the
8.0.5 JDBC driver (the default driver for JDev 1.1). By default,
JDeveloper 2.0 uses the 8.1.4 JDBC driver and there are some
syntax/API changes for LOB support between 8.0.5 and 8.1 (namely
that OracleClob is replaced by oracle.sql.CLOB).
Also, while you can still use the DBMS_LOB package, there are new
methods provided in the oracle.sql package that allow more direct
access to LOBs.
You have two options:
1. switch your driver to use JDBC 8.0.5
2. switch your code to use the new 8.1 JDBC APIs
1. Switch your driver version:
a. For the project you are workin on, select Project->Project
Properties from the menu
b. Look in the Java Libraries list box. You want to see Oracle
8.0.5 JDBC listed BEFORE Oracle 8.1.4 JDBC AND Oracle EJB. I
don't have immediate access to Jdev right now, so I'm not
positive what the libraries were called.
If Oracle JDBC 8.0.5 is not listed at all, click the Add button,
select the Oracle JDBC 8.0.5 library and add it to the list, then
select it and drag it up so it is above the other two I
mentioned.
c. Exit from JDeveloper and edit the jdeveloper.ini file in your
<JDEV_HOME>/bin directory. Make sure
..\jdbc\lib\oci8\classes111.zip appears in the IDE_CLASSPATH
setting before ..\aurora\lib\classes111.zip (8.1.4 JDBC).
2. Switch your code to use the new 8.1 JDBC APIs
a. you will need to import oracle.sql.*
b. change 'OracleClob' to 'CLOB'
c. to read from the CLOB locator (you can still use DBMS_LOB, but
there are new methods as well):
char stream:
//Read CLOB data into Reader char stream
Reader char_stream = the_clob.getCharacterStream();
char [] char_array = new char[10];
int chars_read = char_stream.read (char_array, 0, 10);
//Read CLOB data into Input ASCII character stream
Inputstream asciiChar_stream = the_clob.getAsciiStream();
byte[] asciiChar_array = new byte[10];
int asciiChar_read =
asciiChar_stream.read(asciiChar_array,0,10);
The above examples are from the JDBC 8.1.5 User's Guide and
Reference.
Here is one from the 8.1.5 SQLJ doc:
void readFromClob (CLOB clob) throws SQLException
long clobLen, readLen;
String chunk;
clobLen = clob.length();
for (long i = 0; i< clobLen; i+= readLen) {
chunk = clob.getSubString(i,10);
readLen = chunk.length();
System.out.println("Read " + readLen + " chars: " + chunk);
-L
David DUPONT (guest) wrote:
: It's the same message than before but with more informations
for
: jdev. Team
: I use this version of ORACLE (Evaluation version):
: Oracle8 Enterprise Edition Release 8.0.5.0.0 - Production
: PL/SQL Release 8.0.5.0.0 - Production
: CORE Version 4.0.5.0.0 - Production
: TNS for 32-bit Windows: Version 8.0.5.0.0 - Production
: NLSRTL Version 3.3.2.0.0 - Production
: I'm beginning to develop this project with JDeveloper 1.1
: (Evaluation version) and now, i continue this project with jdev
: 2.0 Beta.
: With Jdev. 1.1 , I can compile "with Warning" and when i
launch
: It, It's the Crach. (It's an Datatype message Error)
: With Jdev 2.0 Beta, I cannot compile.
: After reading the ORACLE DOCUMENTATION about using of CLOB in a
: SQLJ file, i try this:
: package Pack_ConnexionOracle;
: import sqlj.runtime.*;
: import sqlj.runtime.ref.*;
: import java.sql.*;
: // Importing the Oracle Jdbc driver package makes the code more
: readable
: import oracle.jdbc.driver.*;
: public class OraCrit
: public OraCrit(String Surl,String Susr,String Spwd)
: try
: DriverManager.registerDriver(new
: oracle.jdbc.driver.OracleDriver());
: DefaultContext.setDefaultContext(new DefaultContext
: (Surl,Susr,Spwd));
: catch(Exception ex)
: ex.printStackTrace();
: public String SQLRecupRequeteSQL(int iNumQuery) throws
: SQLException
: long lLongSQL;
: OracleClob ORARequeteSQL;
: String sRequeteSQL = new String();
: #sql { select requete_sql into :ORARequeteSQL from requete
where
: num_query=:iNumQuery };
: #sql lLongSQL={values(dbms_lob.getlength(:ORARequeteSQL)) };
: #sql { call dbms_lob.read
: (:ORARequeteSQL,:lLongSQL,0,:sRequeteSQL) };
: return(sRequeteSQL);
: at the line 61:
: #sql { select requete_sql into :ORARequeteSQL from requete
where
: num_query=:iNumQuery };
: I have this compilation error:
: Error:(61) Liste of links Variables INTO...Prohibited: illegal
: expression
: at the line 62:
: #sql lLongSQL={values(dbms_lob.getlength(:ORARequeteSQL)) };
: I have this compilation error:
: Error:(62) The Java type doesn't exist for the host element n
1..
: at the line 63:
: #sql { call dbms_lob.read
: (:ORARequeteSQL,:lLongSQL,0,:sRequeteSQL) };
: Same message than at line 62.
: Is it possible to use a CLOB in SQLJ with JDeveloper 2.0 Beta?
: HELP ME PLEASE,
: Thanks a lot.............
null