AGSetTripleStoreParams.java
package com.franz.agbase.examples;
import com.franz.agbase.*;
public class AGSetTripleStoreParams {
/**
* Demonstrates some basics of setting triple store parameters
*
* @param args unused
* @throws AllegroGraphException
*/
public static void main(String[] args) throws AllegroGraphException {
// Connect to a 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("tsparams", AGPaths.TRIPLE_STORES);
ts.setLookAhead(1000);
ts.setSelectLimit(10000);
ts.setUnindexedThreshold(1000);
ts.setUnmergedThreshold(2);
// Show information about this triple store
showTripleStoreInfo(ts);
// Close the triple store and disconnect from the server.
ts.closeTripleStore();
ags.disable();
}
public static void showTripleStoreInfo(AllegroGraph ts) throws AllegroGraphException {
System.out.println("Triple store settings:");
System.out.println(" Version: " + AllegroGraph.version());
System.out.println(" NumberOfTriples: " + ts.numberOfTriples());
System.out.println(" UnindexedTripleCount: " + ts.getUnindexedTripleCount());
System.out.println(" UnindexedThreshold: " + ts.getUnindexedThreshold());
System.out.println(" SelectLimit: " + ts.getSelectLimit());
System.out.println(" LookAhead: " + ts.getLookAhead());
System.out.println(" UnmergedCount: " + ts.getUnmergedCount());
System.out.println(" UnmergedThreshold: " + ts.getUnmergedThreshold());
AGUtils.printStringArray("IndexFlavors: ", ts.getIndexFlavors());
AGUtils.printStringArray("DataMapping: ", ts.getDataMapping());
AGUtils.printStringArray("Namespace Registry:", ts.getNamespaces());
AGUtils.printStringArray("Freetext Predicates:", ts.getFreetextPredicates());
}
}
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