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AGSetTripleStoreParams.java

package com.franz.ag.examples;



import com.franz.ag.*;



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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