通过名称将在嵌入式Oracle JVM中运行的Java授予Oracle目录的等效语法是什么？

Question

To grant java code that is running inside the Oracle JVM built into 10g DBMS to a specific directory on disk I can can execute:

dbms_java.grant_permission( 
        'SCOTT', 
        'SYS:java.io.FilePermission', 
        '/some/path/on/disk', 
         'read');

What is the equivalent syntax to grant Java code running inside the Oracle JVM built into 10g DBMS an Oracle Directory by Name?

dbms_java.grant_permission( 'SCOTT', 
 'SYS:java.io.FilePermission', 
 'SOME_DIRECTORY_IN_ALL_DIRECTORIES_VIEW', 
 'read');

The directory objects can be found here: select * from all_directories

Example entries in all_directories view:

OWNER   DIRECTORY_NAME    DIRECTORY_PATH
SYS     LOG               /export/home/scott/log
SYS     RESPONSE          /export/home/scott/response
SYS     STAGING           /export/home/scott/staging

If there is such a beast, What is the syntax to read from the named directory within the Java code?

Answer 1

Based on what I read in this AskTom question , you'll need something like:

SELECT directory_path INTO v_path
  FROM all_directories
 WHERE directory_name = '<oracle_dir_name>';

dbms_java.grant_permission( 'SCOTT', 
 'SYS:java.io.FilePermission', 
 v_path, 
 'read');