RBB Programming in Java

Although not shown here, the Java interface to RBB also provides the Tagset interface for constructing and manipulating tagsets (e.g. adding or removing name/value pairs and superset/subset testing).

Outline

1. Creating an RBB
2. Creating a Timeseries
3. Adding an Observation to a Timeseries
4. Ending a Timeseries
5. Finding Timeseries
6. Retrieving data
7. Deleting timeseries
8. Event-driven processing

package gov.sandia.rbb;

public class RBBTutorial
{
    public static void main(String[] args)
    {
        try
        {
            ////// Create an RBB
            // This creates the H2 database, and adds RBB functionality to it.
            RBB rbb = RBB.create("jdbc:h2:mem:HelloWorldDB", "Any Name");

            //// Events
            
            // create Events
            double start=0, end=10;
            Event ev = new Event(rbb.db(), start, end, new Tagset("name1=value1,name2=value2"));
            
            double start2=20, end2=30;
            Event ev2 = new Event(rbb.db(), start2, end2, new Tagset("name1=value1,name3=value3"));
            
            // retrieve events by taget
            Event[] found = Event.find(rbb.db(), RBBFilter.byTags("name1=value1"));
            
            for(Event e : found)
            	System.err.println("Found event: " + e);
            		
              
            //// Timeseries
            
	    // Creating a Timeseries
            int dim = 2; // 2-dimensional (x,y) data
	    Timeseries t = new Timeseries(rbb, dim, start, new Tagset("name4=value4"));
	    t.add(rbb, 1.0, 2.0, 3.0);
	    t.add(rbb, 2.0, 3.14, 2.718);
	    t.setEnd(rbb.db(), 5.0);

	    /// Finding Timeseries
	    Timeseries[] a = Timeseries.findWithSamples(rbb.db(), RBBFilter.byTags("name4=value4"));

	    for(Timeseries ts : a)
            	System.err.println("Found timeseries: " + ts);
	        
	    rbb.disconnect();
        }
        catch (java.sql.SQLException e)
        {
            System.err.println("error: " + e.getLocalizedMessage());
        }

    }
}