# AGTriplesQueryCount.java

`package com.franz.agbase.examples;
import com.franz.agbase.*;
public class AGTriplesQueryCount {
/**
* Demonstrates using the TriplesQuery count method.
*
* @param args unused
* @throws AllegroGraphException
*/
public static void main(String[] args) throws AllegroGraphException {
// Connect to server, which must already be running.
AllegroGraphConnection ags = new AllegroGraphConnection();
try {
ags.enable();
} catch (Exception e) {
throw new AllegroGraphException("Server connection problem", e);
}
// Create a fresh triple store
AllegroGraph ts = ags.renew("triplesquerycount", AGPaths.TRIPLE_STORES);
ts.registerNamespace("ex", "http://example.org/");
ts.addStatement("!ex:a","!ex:p", "!ex:b", "<g>");
ts.addStatement("!ex:a","!ex:q", "!ex:b", "<g>");
ts.addStatement("!ex:a","!ex:r", "!ex:b", "<g>");
ts.addStatement("!ex:a","!ex:s", "!ex:b", "<g>");
ts.addStatement("!ex:a","!ex:t", "!ex:b", "<h>");
ts.addStatement("!ex:a","!ex:u", "!ex:b", "<h>");
TriplesQuery tq = new TriplesQuery();
tq.setContext("<g>");
long g_count = tq.count(ts);
System.out.println("Number of triples in context g: " + g_count);
tq.setContext("<h>");
long h_count = tq.count(ts);
System.out.println("Number of triples in context h: " + h_count);
// Close the triple store and disconnect from the server
ts.closeTripleStore();
ags.disable();
}
}
`

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