# AGTripleIds.java

`package com.franz.agbase.examples;
import com.franz.agbase.*;
public class AGTripleIds {
/**
* Demonstrates some basics of triple ids.
*
* @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 for this example.
AllegroGraph ts = ags.renew("tripleids", AGPaths.TRIPLE_STORES);
// Register any namespaces
ts.registerNamespace("ex","http://example.org/");
// Create some triples and add them to the store
Triple tr1 = ts.newTriple("!ex:Dog","!rdf:type","!owl:Class");
Triple tr2 = ts.newTriple("!ex:Dog","!rdfs:subClassOf","!ex:Mammal");
// Show the triples and note their ids
System.out.println("Created and added the following triples to the store:");
AGUtils.showTriple(tr1);
AGUtils.showTriple(tr2);
// Get the id for a triple
long tr2_id = tr2.queryAGId();
// You can also use triple ids to assert facts about triples
// This can be more space and time efficient than reifying
// but this is not RDF semantics
EncodedLiteral lit = ts.createEncodedLiteral(tr2_id,"triple-id");
Triple tr3 = ts.newTriple("!ex:person1", "!ex:believes", lit);
AGUtils.showTriple(tr3);
// Close the store and disconnect from the server.
ts.closeTripleStore();
ags.disable();
}
}
`

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