Added new files

Author: Nirmala Sundarappa

java/ojvm/ServersideConnect.java

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+/* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.*/
+/*
+   DESCRIPTION
+     The server-side Type 2 (T2S) driver (aka KPRB driver) is for Java in the 
+     database. Java running in the database session uses the KPRB driver or 
+     T2S driver to access data, locally.     
+     We furnish the server-side thin JDBC (aka Type 4 server driver) for 
+     accessing data in other session in the same database or a remote Oracle 
+     database.
+     
+     Step 1: Connect to SQLPLUS using the database USER/PASSWORD. 
+             Make sure to have ServersideConnect.sql accessible on the 
+             client side to execute. 
+     Step 2: Run the SQL file after connecting to DB "@ServersideConnect.sql" 
+
+   NOTES
+    Use JDK 1.6 and above
+
+   MODIFIED    (MM/DD/YY)
+    nbsundar    03/23/15 - Creation (kmensah - Contributor)
+ */
+import java.sql.Connection;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+import oracle.jdbc.driver.OracleDriver;
+import oracle.jdbc.pool.OracleDataSource;
+
+
+public class ServersideConnect {
+
+  static public void jrun() throws SQLException {
+    // For testing ServersideConnect
+    // test("jdbc:oracle:kprb:@");
+    method1("jdbc:default:connection");
+    method2(); 
+  } 
+  /*
+  * Shows using the server side Type 2 driver a.k.a KPRB driver 
+  */ 
+ static public void method1(String url) throws SQLException {
+    Connection connection = null; 
+    try {
+      System.out.println("Connecting to URL " + url);
+      // Method 1: Using OracleDataSource
+      OracleDataSource ods = new OracleDataSource();
+      ods.setURL(url);
+      connection = ods.getConnection();
+      System.out.println("Method 1: Getting Default Connection "
+          + "using OracleDataSource");
+      // Perform database operation
+      printEmployees(connection);
+
+    } catch (SQLException e) {
+      e.printStackTrace();
+     }
+  }
+
+
+ /*
+ * Method to show that a connection is obtained without specifying the URL.  
+ * This method uses the default connection to establish the connection.  
+ */ 
+
+ static public void method2() throws SQLException {
+    Connection connection = null; 
+      // Method 2: Using defaultConnection() method
+      OracleDriver ora = new OracleDriver();
+      connection = ora.defaultConnection();
+      System.out.println("Method 2: Getting Default Connection "
+          + "using OracleDriver");
+      // Perform database operation
+      printEmployees(connection);
+}  
+ /*
+
+ /*
+  * Displays employee_id and first_name from the employees table.
+  */
+  static public void printEmployees(Connection connection) throws SQLException {
+    ResultSet resultSet = null;
+    Statement statement = null;
+    try {
+      statement = connection.createStatement();
+      resultSet = statement.executeQuery("SELECT employee_id, first_name FROM " 
+                             +    "employees order by employee_id");
+      while (resultSet.next()) {
+        System.out.println("Emp no: " + resultSet.getInt(1) + "   Emp name: "
+            + resultSet.getString(2));
+      }
+    }
+    catch (SQLException ea) {
+      System.out.println("Error during execution: " + ea);
+      ea.printStackTrace();
+    }
+    finally {
+      if (resultSet != null) resultSet.close();
+      if (statement != null) statement.close();   
+    }
+  }
+}
+
+

java/ojvm/ServersideConnect.sql

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+Rem ServersideConnect.sql
+Rem
+Rem Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
+Rem
+Rem    NAME
+Rem      ServersideConnect.sql 
+Rem
+Rem    DESCRIPTION
+Rem       SQL for invoking the method which gets a server side connection to
+Rem      internal T2 Driver
+Rem
+Rem    MODIFIED   (MM/DD/YY)
+Rem    nbsundar    03/23/15 - Created
+Rem    kmensah     03/23/15 - Contributor
+
+rem Reads the content of the Java source from ServersideConnect.java 
+rem then compiles it 
+connect hr/hr
+CREATE OR REPLACE AND COMPILE JAVA SOURCE NAMED ServersideConnect_src AS
+@ ServersideConnect.java
+/
+
+show error
+
+rem A wrapper (a.k.a. Call Spec), to invoke Java
+rem function in the database from SQL, PL/SQL, and client applications
+CREATE OR REPLACE PROCEDURE ServersideConnect_proc AS 
+LANGUAGE JAVA NAME 'ServersideConnect.jrun ()';
+/
+
+rem Running the sample
+connect hr/hr
+SET SERVEROUTPUT ON SIZE 10000 
+CALL dbms_java.set_output (10000);
+
+execute ServersideConnect_proc;
+