Examples of com.hp.hpl.jena.util.MonitorModel

com.hp.hpl.jena.util.MonitorModel
Model wrapper which provides normal access to an underlying model but also maintains a snapshot of the triples it was last known to contain. A snapshot action causes the set of changes between this and the previous snapshot to be calculated and the cache updated. The snapshot process will also fire change notification. @author Dave Reynolds

        Statement s2 = base.createStatement(ar, pr, "2");
        Statement s3 = base.createStatement(ar, pr, "3");
        Statement s4 = base.createStatement(ar, pr, "4");
        Statement s5 = base.createStatement(ar, pr, "5");
        
        MonitorModel monitor = new MonitorModel(base);
        RecordingModelListener listener = new RecordingModelListener();
        monitor.register(listener);
        
        // base data
        base.add(s1);
        base.add(s2);
        base.add(s3);
        
        // Test changes from empty
        List<Statement> additions = new ArrayList<>();
        List<Statement> deletions = new ArrayList<>();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {s1, s2, s3});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {});
        listener.assertHas(new Object[] {"addList", additions, "removeList", deletions});
        listener.clear();
        
        // Make some new changes
        base.add(s4);
        base.add(s5);
        base.remove(s1);
        base.remove(s2);
        
        additions.clear();
        deletions.clear();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {s4, s5});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {s1, s2});
        TestUtil.assertIteratorValues(this, monitor.listStatements(), new Object[] {s3, s4, s5});
        
        listener.assertHas(new Object[] {"addList", additions, "removeList", deletions});
        listener.clear();
    }

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        Statement s2 = base.createStatement(ar, pr, "2");
        Statement s3 = base.createStatement(ar, pr, "3");
        Statement s4 = base.createStatement(ar, pr, "4");
        Statement s5 = base.createStatement(ar, pr, "5");
        
        MonitorModel monitor = new MonitorModel(base);
        RecordingModelListener listener = new RecordingModelListener();
        monitor.register(listener);
        
        // base data
        base.add(s1);
        base.add(s2);
        base.add(s3);
        
        // Test changes from empty
        List<Statement> additions = new ArrayList<Statement>();
        List<Statement> deletions = new ArrayList<Statement>();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {s1, s2, s3});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {});
        listener.assertHas(new Object[] {"addList", additions, "removeList", deletions});
        listener.clear();
        
        // Make some new changes
        base.add(s4);
        base.add(s5);
        base.remove(s1);
        base.remove(s2);
        
        additions.clear();
        deletions.clear();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {s4, s5});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {s1, s2});
        TestUtil.assertIteratorValues(this, monitor.listStatements(), new Object[] {s3, s4, s5});
        
        listener.assertHas(new Object[] {"addList", additions, "removeList", deletions});
        listener.clear();
    }

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        Statement s2 = base.createStatement(ar, pr, "2");
        Statement s3 = base.createStatement(ar, pr, "3");
        Statement s4 = base.createStatement(ar, pr, "4");
        Statement s5 = base.createStatement(ar, pr, "5");
        
        MonitorModel monitor = new MonitorModel(base);
        RecordingModelListener listener = new RecordingModelListener();
        monitor.register(listener);
        
        // base data
        base.add(s1);
        base.add(s2);
        base.add(s3);
        
        // Test changes from empty
        List<Statement> additions = new ArrayList<Statement>();
        List<Statement> deletions = new ArrayList<Statement>();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {s1, s2, s3});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {});
        listener.assertHas(new Object[] {"addList", additions, "removeList", deletions});
        listener.clear();
        
        // Make some new changes
        base.add(s4);
        base.add(s5);
        base.remove(s1);
        base.remove(s2);
        
        additions.clear();
        deletions.clear();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {s4, s5});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {s1, s2});
        TestUtil.assertIteratorValues(this, monitor.listStatements(), new Object[] {s3, s4, s5});
        
        listener.assertHas(new Object[] {"addList", additions, "removeList", deletions});
        listener.clear();
    }

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com.hp.hpl.jena.util.TestMonitors

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