Examples of org.openrdf.repository.RepositoryConnection.clear()

Class org.openrdf.repository.RepositoryConnection

Examples of org.openrdf.repository.RepositoryConnection.clear()

org.openrdf.repository.RepositoryConnection.clear()
Removes all statements from a specific contexts in the repository. @param contexts The context(s) to remove the data from. Note that this parameter is a vararg and as such is optional. If no contexts are supplied the method operates on the entire repository. @throws StoreException If the statements could not be removed from the repository, for example because the repository is not writable.

      Literal nameValue = repository.getValueFactory().createLiteral("Kingsley Idehen");


      startTest();
      try {
        ok = true;
        con.clear(context);
        log("Loading single triple");
        con.add(snode, name, nameValue, context);
        query = "SELECT * FROM <" + context + "> WHERE {?s ?p ?o} LIMIT 1";
        results = doTupleQuery(con, query);
      }

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      String strurl = "http://www.openlinksw.com/dataspace/person/kidehen@openlinksw.com/foaf.rdf";
      URL url = new URL(strurl);
      URI context = repository.getValueFactory().createURI("http://demo.openlinksw.com/demo#this");
      Value[][] results = null;


      con.clear(context);
      startTest();
      try {
        URI subject = repository.getValueFactory().createURI("urn:s");
        URI predicate = repository.getValueFactory().createURI("urn:p");
        URI object = repository.getValueFactory().createURI("urn:o");

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      endTest((ok && (results.length > 0))); // should return true


      startTest();
      try {
        ok = true;
        con.clear(context);
        log("Clearing triple store");
        long sz = con.size(context);
        ok = (sz == 0);
      }
      catch (Exception e) {

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      Literal un_Value = repository.getValueFactory().createLiteral(utf8str);


      startTest();
      try {
        ok = true;
        con.clear(context);
        log("Loading UNICODE single triple");
        con.add(un_testuri, un_name, un_Value, context);
        query = "SELECT * FROM <" + context + "> WHERE {?s ?p ?o} LIMIT 1";
        results = doTupleQuery(con, query);
      }

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      Literal nameValue = repository.getValueFactory().createLiteral("Kingsley Idehen");


      startTest();
      try {
        ok = true;
        con.clear(context);
        log("Loading single triple");
        con.add(snode, name, nameValue, context);
        query = "SELECT * FROM <" + context + "> WHERE {?s ?p ?o} LIMIT 1";
        results = doTupleQuery(con, query);
      }

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