# AGIndexNewTriples.java

`package com.franz.agbase.examples;
import com.franz.agbase.*;
public class AGIndexNewTriples {
/**
* Demonstrates some basics of indexing triples newly added to a store.
*
* @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);
}
// store the chunk size so that it can be reset later
long chunkSize = ags.getChunkSize();
System.out.println("Setting index chunk size to 1000.");
ags.setChunkSize(1000);
// Create a fresh triple store
AllegroGraph ts = ags.renew("wilburwine", AGPaths.TRIPLE_STORES);
// Load the wilburwine dataset
String ntripleFile = AGPaths.dataSources("wilburwine.ntriples");
System.out.println("Loading N-Triples " + ntripleFile);
AGLoadNtriples.loadNTriplesWithTiming(ts,ntripleFile);
// Note that all of the newly added triples are unindexed
// The unindexed triple count reports 6 times the number
// of new triples added here, one for each index flavor
System.out.println("Unindexed triples: " + ts.getUnindexedTripleCount());
System.out.println("Unmerged chunks: " + ts.getUnmergedCount());
// Index only the newly added triples
ts.indexNewTriples(true);
// The new triples are now indexed -- in a separate chunk
System.out.println("After calling indexNewTriples:");
System.out.println("Unindexed triples: " + ts.getUnindexedTripleCount());
System.out.println("Unmerged chunks: " + ts.getUnmergedCount());
// Now index all triples -- this merges chunks
ts.indexAllTriples(true);
// There should now be one chunk for each index flavor
System.out.println("After calling indexAllTriples:");
System.out.println("Unindexed triples: " + ts.getUnindexedTripleCount());
System.out.println("Chunks: " + ts.getUnmergedCount());
// Reset chunk size to its original value
System.out.println("Setting index chunk size back to its original value.");
ags.setChunkSize(chunkSize);
// Close the triple store and disconnect from the server.
ts.closeTripleStore();
ags.disable();
}
}
`

Up | Next