Loadjava importing Java into the Oracle database

1) Load Jar file

Loadjava-r-f-verbose-resolve-user Xmlbook/xmlbook Xmlparserv2.jar

2) Load class file

Loadjava-r-f-user user_name/password[@URL] Oracle/aaa/bbb/ccc.class

3) Remove Java classes from the database

Dropjava-r-f-user user_name/password[@URL] [option_list] File_list

4) Call Java stored procedure

sql> variable myString varchar2[20]; Sql> call HelloWorld () into:mystring; Call completed. sql> print myString; MYSTRING---------------------Hello World

5) Creating a PL/SQL Wrapper
The syntax for creating this procedure is:

CREATE [OR REPLACE] { PROCEDURE procedure_name [(param[, param ...]) | FUNCTION function_name [(param[, param ...])] RETURN Plsql_type]} [AUTHID {definer | Current_User}] [Parallel_enable] [Deterministic] {is | as} LANGUAGE JAVA NAME ' Java_method (java_type[, Java_type] ...) [RETURN Java_type];

where param is defined as:

param: = parameter_name [In | Out | In out] Plsql_type

Some details is writen at
Http://www.databasejournal.com/books/print.php/10979_2106941_2

6) Use JDeveloper IDE to load Java class
Run->deploy->new Deploy Profile->general->deploy profiles->load java and Java stored procedure

-andresolve Compiles source files and resolves each class file as it is loaded. This option and-resolve is mutually exclusive. If Neither is specified, files be loaded but not compiled or resolved. In general, this mode isn't recommended because it can leave classes that has unresolved references marked valid, Causin G an error at runtime. -debug Generates debug information. This option was equivalent to JAVAC-G. -definer Specifies that the methods of uploaded classes would execute with the privileges of their definer, not their invoker. (By default, methods execute with the privileges of their invoker.) Different Definers can has Different privileges, and an application can has many classes, so make sure the methods of a Given class execute only with the privileges they need. Note that oracle8i Release 8.1.5 does is seem to conform to the Oracle documentation; The default seems to is to run with Definer rights. -encoding Sets (or resets) the-encoding option in the database table Java$options to the specified value, which must is the name of A standard JDK encoding scheme (the default is "Latin1"). The compiler uses this value, so the encoding of uploaded source files must match the specified encoding. -force Forces the loading of Java class files, whether or not they has been loaded before. By default, previously loaded class files is rejected. You cannot force the loading of a class file if you previously loaded the source file. You must drop the source schema object first. -grant Grants the EXECUTE privilege on uploaded classes to the listed users or roles. (To the methods of a class directly, the users must has the EXECUTE privilege.) This option is cumulative. Users and roles is added to the list of those have the EXECUTE privilege. To revoke the privilege, either drop and reload the schema object without specifying-grant, or use the SQL revoke Stateme Nt. To grant the privilege on a object in another user's schema, you must has the CREATE PROCEDURE with grant privilege. -oci8 Directs Loadjava to communicate with the database using the OCI JDBC driver. This option (the default) And-thin is mutually exclusive. -oracleresolver Binds newly created class schema objects to the following predefined resolver spec: "((* definer ' S_schema) (* public))" -resolver is mutually exclusive. -resolve After all class files on the command line is loaded and compiled (if necessary), resolves all external references in thos E classes. If This option was not specified, files were loaded but not compiled or resolved until runtime. Specify this option to compile (if necessary) and resolve a class that is loaded previously. You need isn't specify The-force option because resolution is do independently, after loading. -resolver Binds newly created class schema objects to a user-defined resolver spec. Because It contains spaces, the resolver spec must is enclosed by double quotes. This option And-oracleresolver (the default) is mutually exclusive. -schema Assigns newly created Java schema objects to the specified schema. If This option isn't specified, then the logon schema is used. You must has the CREATE any PROCEDURE privilege to load into another user ' s schema. -synonym Creates a public synonym for uploaded classes, making them accessible outside the schema into which they is loaded. To specify this option, you must has the CREATE public synonym privilege. If you specify the This option for the source files, it also applies to classes compiled from those source files. -thin Directs Loadjava to communicate with the database using the thin JDBC driver. This option and-oci8 (the default) is mutually exclusive. -verbose Enables the verbose mode, in which progress messages is displayed.