User's Manual

Virtuoso 4.5 Application and Integration Reviewers Guide
Copyright ©2006 OpenLink Software
23
Figure 29 – Testing CLR UDT and distance stored procedure
Figure 30 - Testing the SOAP Operation, Distance
3.3.2.1.2 User Defined Types and Java Classes
The steps used to create a hosted module in Java are the same as the CLR. However, in
order to access the Java class instances they have to be defined as Virtuoso types using
CREATE TYPE and specifying LANGUAGE JAVA. Figure 122 and 123 shows the definition
of the Point class written in Java and the UDT definition in Virtuoso.
Figure 31 Java code – Point.java
public class Point implements java.io.Serializable
{
public double x = 0;
public double y = 0;
public Point (double new_x, double new_y)
{
x = new_x;
y = new_y;
}
public double distance (Point p)
{
return Math.sqrt ((p.x - this.x) * (p.x - this.x) + (p.y - this.y) * (p.y -
this.y));
}