Examples of com.hp.hpl.jena.util.MonitorGraph.snapshot()

com.hp.hpl.jena.util.MonitorGraph.snapshot()
Compute the differences between the current monitored graph and the last snapshot. The changes will also be forwarded to any listeners. Then take a new snapshot. @param additions a place in which the set of newly added triples should be noted, can be null @param deletions a place in which the set of newly deleted triples should be noted, can be null

        base.add(t3);
        
        // Test changes from empty
        List<Triple> additions = new ArrayList<>();
        List<Triple> deletions = new ArrayList<>();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {t1, t2, t3});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {});
        
        // Make some new changes
        base.add(t4);

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        base.delete(t1);
        base.delete(t2);
        
        additions.clear();
        deletions.clear();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {t4, t5});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {t1, t2});
        TestUtil.assertIteratorValues(this, monitor.find(Node.ANY, Node.ANY, Node.ANY), new Object[] {t3, t4, t5});
    }

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        listener.has(new Object[]{});
        
        // Test changes from empty
        List<Triple> additions = new ArrayList<>();
        List<Triple> deletions = new ArrayList<>();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {t1, t2, t3});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {});
        
        listener.assertHas(new Object[] {"addList", monitor, additions, "deleteList", monitor, deletions});
        listener.clear();

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        base.delete(t1);
        base.delete(t2);
        
        additions.clear();
        deletions.clear();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {t4, t5});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {t1, t2});
        TestUtil.assertIteratorValues(this, monitor.find(Node.ANY, Node.ANY, Node.ANY), new Object[] {t3, t4, t5});
        
        listener.assertHas(new Object[] {"addList", monitor, additions, "deleteList", monitor, deletions});

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        base.add(t3);
        
        // Test changes from empty
        List<Triple> additions = new ArrayList<Triple>();
        List<Triple> deletions = new ArrayList<Triple>();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {t1, t2, t3});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {});
        
        // Make some new changes
        base.add(t4);

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        base.delete(t1);
        base.delete(t2);
        
        additions.clear();
        deletions.clear();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {t4, t5});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {t1, t2});
        TestUtil.assertIteratorValues(this, monitor.find(Node.ANY, Node.ANY, Node.ANY), new Object[] {t3, t4, t5});
    }

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        listener.has(new Object[]{});
        
        // Test changes from empty
        List<Triple> additions = new ArrayList<Triple>();
        List<Triple> deletions = new ArrayList<Triple>();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {t1, t2, t3});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {});
        
        listener.assertHas(new Object[] {"addList", monitor, additions, "deleteList", monitor, deletions});
        listener.clear();

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        base.delete(t1);
        base.delete(t2);
        
        additions.clear();
        deletions.clear();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {t4, t5});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {t1, t2});
        TestUtil.assertIteratorValues(this, monitor.find(Node.ANY, Node.ANY, Node.ANY), new Object[] {t3, t4, t5});
        
        listener.assertHas(new Object[] {"addList", monitor, additions, "deleteList", monitor, deletions});

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        base.add(t3);
        
        // Test changes from empty
        List<Triple> additions = new ArrayList<Triple>();
        List<Triple> deletions = new ArrayList<Triple>();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {t1, t2, t3});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {});
        
        // Make some new changes
        base.add(t4);

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        base.delete(t1);
        base.delete(t2);
        
        additions.clear();
        deletions.clear();
        monitor.snapshot(additions, deletions);
        TestUtil.assertIteratorValues(this, additions.iterator(), new Object[] {t4, t5});
        TestUtil.assertIteratorValues(this, deletions.iterator(), new Object[] {t1, t2});
        TestUtil.assertIteratorValues(this, monitor.find(Node.ANY, Node.ANY, Node.ANY), new Object[] {t3, t4, t5});
    }

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