Package org.modeshape.jcr.query.plan

Examples of org.modeshape.jcr.query.plan.PlanNode

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    }

    @Test
    public void shouldChangeRightOuterJoinToLeftOuterJoinAndReverseChildNodes() {
        // Create a RIGHT_OUTER join ...
        PlanNode joinNode = new PlanNode(Type.JOIN);
        joinNode.setProperty(Property.JOIN_TYPE, JoinType.RIGHT_OUTER);
        PlanNode lhs = new PlanNode(Type.SOURCE, joinNode);
        PlanNode rhs = new PlanNode(Type.SOURCE, joinNode);

        // Execute the rule ...
        PlanNode result = rule.execute(context, joinNode, new LinkedList<OptimizerRule>());
        assertThat(result, is(sameInstance(joinNode)));

        // Verify the change ...
        assertThat(joinNode.getProperty(Property.JOIN_TYPE, JoinType.class), is(JoinType.LEFT_OUTER));
        assertThat(joinNode.getFirstChild(), is(sameInstance(rhs)));
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    }

    @Test
    public void shouldNotAddJoinConditionColumnIfAlreadyUsed() {
        // Create a join ...
        PlanNode joinNode = new PlanNode(Type.JOIN);
        joinNode.setProperty(Property.JOIN_TYPE, JoinType.LEFT_OUTER);
        joinNode.setProperty(Property.JOIN_CONDITION, new EquiJoinCondition(selector("left"), "c2", selector("right"), "d2"));
        PlanNode lhs = sourceNode(context, joinNode, "left", "c1", "c2", "c3");
        PlanNode rhs = sourceNode(context, joinNode, "right", "d1", "d2", "d3");

        // Execute the rule ...
        PlanNode result = rule.execute(context, joinNode, new LinkedList<OptimizerRule>());
        assertThat(result, is(sameInstance(joinNode)));

        // Verify nothing has changed ...
        assertThat(joinNode.getProperty(Property.JOIN_TYPE, JoinType.class), is(JoinType.LEFT_OUTER));
        assertThat(joinNode.getFirstChild(), is(sameInstance(lhs)));
        assertThat(joinNode.getLastChild(), is(sameInstance(rhs)));
        assertThat(joinNode.getChildCount(), is(2));
        PlanNode left = joinNode.getFirstChild();
        PlanNode right = joinNode.getLastChild();
        assertProperty(left, Property.PROJECT_COLUMNS, columns(context, selector("left"), "c1", "c2", "c3"));
        assertProperty(left, Property.PROJECT_COLUMN_TYPES, columnTypes(context, selector("left"), "c1", "c2", "c3"));
        assertProperty(right, Property.PROJECT_COLUMNS, columns(context, selector("right"), "d1", "d2", "d3"));
        assertProperty(right, Property.PROJECT_COLUMN_TYPES, columnTypes(context, selector("right"), "d1", "d2", "d3"));
    }
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    }

    @Test
    public void shouldNotAddJoinConditionWithChildNodesSwapped() {
        // Create a join ...
        PlanNode joinNode = new PlanNode(Type.JOIN);
        joinNode.setProperty(Property.JOIN_TYPE, JoinType.LEFT_OUTER);
        joinNode.setProperty(Property.JOIN_CONDITION, new EquiJoinCondition(selector("right"), "d2", selector("left"), "c2"));
        PlanNode lhs = sourceNode(context, joinNode, "left", "c1", "c2", "c3");
        PlanNode rhs = sourceNode(context, joinNode, "right", "d1", "d2", "d3");

        // Execute the rule ...
        PlanNode result = rule.execute(context, joinNode, new LinkedList<OptimizerRule>());
        assertThat(result, is(sameInstance(joinNode)));

        // Verify nothing has changed ...
        assertThat(joinNode.getProperty(Property.JOIN_TYPE, JoinType.class), is(JoinType.LEFT_OUTER));
        assertThat(joinNode.getFirstChild(), is(sameInstance(lhs)));
        assertThat(joinNode.getLastChild(), is(sameInstance(rhs)));
        assertThat(joinNode.getChildCount(), is(2));
        PlanNode left = joinNode.getFirstChild();
        PlanNode right = joinNode.getLastChild();
        assertProperty(left, Property.PROJECT_COLUMNS, columns(context, selector("left"), "c1", "c2", "c3"));
        assertProperty(left, Property.PROJECT_COLUMN_TYPES, columnTypes(context, selector("left"), "c1", "c2", "c3"));
        assertProperty(right, Property.PROJECT_COLUMNS, columns(context, selector("right"), "d1", "d2", "d3"));
        assertProperty(right, Property.PROJECT_COLUMN_TYPES, columnTypes(context, selector("right"), "d1", "d2", "d3"));
    }
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    }

    @Test
    public void shouldAddJoinConditionColumnOnLeftSideIfNotAlreadyUsed() {
        // Create a join ...
        PlanNode joinNode = new PlanNode(Type.JOIN);
        joinNode.setProperty(Property.JOIN_TYPE, JoinType.LEFT_OUTER);
        joinNode.setProperty(Property.JOIN_CONDITION, new EquiJoinCondition(selector("left"), "c4", selector("right"), "d2"));
        PlanNode lhs = sourceNode(context, joinNode, "left", "c1", "c2", "c3");
        PlanNode rhs = sourceNode(context, joinNode, "right", "d1", "d2", "d3");

        // Execute the rule ...
        PlanNode result = rule.execute(context, joinNode, new LinkedList<OptimizerRule>());
        assertThat(result, is(sameInstance(joinNode)));

        // Verify nothing has changed ...
        assertThat(joinNode.getProperty(Property.JOIN_TYPE, JoinType.class), is(JoinType.LEFT_OUTER));
        assertThat(joinNode.getFirstChild(), is(sameInstance(lhs)));
        assertThat(joinNode.getLastChild(), is(sameInstance(rhs)));
        assertThat(joinNode.getChildCount(), is(2));
        PlanNode left = joinNode.getFirstChild();
        PlanNode right = joinNode.getLastChild();
        assertProperty(left, Property.PROJECT_COLUMNS, columns(context, selector("left"), "c1", "c2", "c3", "c4"));
        assertProperty(left, Property.PROJECT_COLUMN_TYPES, columnTypes(context, selector("left"), "c1", "c2", "c3", "c4"));
        assertProperty(right, Property.PROJECT_COLUMNS, columns(context, selector("right"), "d1", "d2", "d3"));
        assertProperty(right, Property.PROJECT_COLUMN_TYPES, columnTypes(context, selector("right"), "d1", "d2", "d3"));
    }
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    }

    @Test
    public void shouldAddJoinConditionColumnOnRightSideIfNotAlreadyUsed() {
        // Create a join ...
        PlanNode joinNode = new PlanNode(Type.JOIN);
        joinNode.setProperty(Property.JOIN_TYPE, JoinType.LEFT_OUTER);
        joinNode.setProperty(Property.JOIN_CONDITION, new EquiJoinCondition(selector("left"), "c2", selector("right"), "d4"));
        PlanNode lhs = sourceNode(context, joinNode, "left", "c1", "c2", "c3");
        PlanNode rhs = sourceNode(context, joinNode, "right", "d1", "d2", "d3");

        // Execute the rule ...
        PlanNode result = rule.execute(context, joinNode, new LinkedList<OptimizerRule>());
        assertThat(result, is(sameInstance(joinNode)));

        // Verify nothing has changed ...
        assertThat(joinNode.getProperty(Property.JOIN_TYPE, JoinType.class), is(JoinType.LEFT_OUTER));
        assertThat(joinNode.getFirstChild(), is(sameInstance(lhs)));
        assertThat(joinNode.getLastChild(), is(sameInstance(rhs)));
        assertThat(joinNode.getChildCount(), is(2));
        PlanNode left = joinNode.getFirstChild();
        PlanNode right = joinNode.getLastChild();
        assertProperty(left, Property.PROJECT_COLUMNS, columns(context, selector("left"), "c1", "c2", "c3"));
        assertProperty(left, Property.PROJECT_COLUMN_TYPES, columnTypes(context, selector("left"), "c1", "c2", "c3"));
        assertProperty(right, Property.PROJECT_COLUMNS, columns(context, selector("right"), "d1", "d2", "d3", "d4"));
        assertProperty(right, Property.PROJECT_COLUMN_TYPES, columnTypes(context, selector("right"), "d1", "d2", "d3", "d4"));
    }
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    }

    @Test
    public void shouldAddJoinConditionColumnOnBothSidesIfNotAlreadyUsed() {
        // Create a join ...
        PlanNode joinNode = new PlanNode(Type.JOIN);
        joinNode.setProperty(Property.JOIN_TYPE, JoinType.LEFT_OUTER);
        joinNode.setProperty(Property.JOIN_CONDITION, new EquiJoinCondition(selector("left"), "c4", selector("right"), "d4"));
        PlanNode lhs = sourceNode(context, joinNode, "left", "c1", "c2", "c3");
        PlanNode rhs = sourceNode(context, joinNode, "right", "d1", "d2", "d3");

        // Execute the rule ...
        PlanNode result = rule.execute(context, joinNode, new LinkedList<OptimizerRule>());
        assertThat(result, is(sameInstance(joinNode)));

        // Verify nothing has changed ...
        assertThat(joinNode.getProperty(Property.JOIN_TYPE, JoinType.class), is(JoinType.LEFT_OUTER));
        assertThat(joinNode.getFirstChild(), is(sameInstance(lhs)));
        assertThat(joinNode.getLastChild(), is(sameInstance(rhs)));
        assertThat(joinNode.getChildCount(), is(2));
        PlanNode left = joinNode.getFirstChild();
        PlanNode right = joinNode.getLastChild();
        assertProperty(left, Property.PROJECT_COLUMNS, columns(context, selector("left"), "c1", "c2", "c3", "c4"));
        assertProperty(left, Property.PROJECT_COLUMN_TYPES, columnTypes(context, selector("left"), "c1", "c2", "c3", "c4"));
        assertProperty(right, Property.PROJECT_COLUMNS, columns(context, selector("right"), "d1", "d2", "d3", "d4"));
        assertProperty(right, Property.PROJECT_COLUMN_TYPES, columnTypes(context, selector("right"), "d1", "d2", "d3", "d4"));
    }
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    }

    @Test
    public void shouldAddJoinConditionColumnOnBothSidesIfChildrenSwappedAndIfNotAlreadyUsed() {
        // Create a join ...
        PlanNode joinNode = new PlanNode(Type.JOIN);
        joinNode.setProperty(Property.JOIN_TYPE, JoinType.LEFT_OUTER);
        joinNode.setProperty(Property.JOIN_CONDITION, new EquiJoinCondition(selector("right"), "d4", selector("left"), "c4"));
        PlanNode lhs = sourceNode(context, joinNode, "left", "c1", "c2", "c3");
        PlanNode rhs = sourceNode(context, joinNode, "right", "d1", "d2", "d3");

        // Execute the rule ...
        PlanNode result = rule.execute(context, joinNode, new LinkedList<OptimizerRule>());
        assertThat(result, is(sameInstance(joinNode)));

        // Verify nothing has changed ...
        assertThat(joinNode.getProperty(Property.JOIN_TYPE, JoinType.class), is(JoinType.LEFT_OUTER));
        assertThat(joinNode.getFirstChild(), is(sameInstance(lhs)));
        assertThat(joinNode.getLastChild(), is(sameInstance(rhs)));
        assertThat(joinNode.getChildCount(), is(2));
        PlanNode left = joinNode.getFirstChild();
        PlanNode right = joinNode.getLastChild();
        assertProperty(left, Property.PROJECT_COLUMNS, columns(context, selector("left"), "c1", "c2", "c3", "c4"));
        assertProperty(left, Property.PROJECT_COLUMN_TYPES, columnTypes(context, selector("left"), "c1", "c2", "c3", "c4"));
        assertProperty(right, Property.PROJECT_COLUMNS, columns(context, selector("right"), "d1", "d2", "d3", "d4"));
        assertProperty(right, Property.PROJECT_COLUMN_TYPES, columnTypes(context, selector("right"), "d1", "d2", "d3", "d4"));
    }
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     * </pre>
     */
    @Test
    public void shouldReplaceComparisonsSpecifyingExclusiveRangeWithBetweenConstraint() {
        // Each of the PROJECT, SELECT, and SELECT nodes must have the names of the selectors that they apply to ...
        PlanNode access = new PlanNode(Type.ACCESS, selector("t1"));
        PlanNode project = new PlanNode(Type.PROJECT, access, selector("t1"));
        PlanNode select1 = new PlanNode(Type.SELECT, project, selector("t1"));
        PlanNode select2 = new PlanNode(Type.SELECT, select1, selector("t1"));
        PlanNode select3 = new PlanNode(Type.SELECT, select2, selector("t1"));
        PlanNode source = new PlanNode(Type.SOURCE, select3, selector("t1"));
        source.setProperty(Property.SOURCE_NAME, selector("t1"));
        select1.setProperty(Property.SELECT_CRITERIA, new Comparison(new PropertyValue(selector("t1"), "c2"), Operator.EQUAL_TO,
                                                                     new Literal(100L)));
        select2.setProperty(Property.SELECT_CRITERIA, new Comparison(new PropertyValue(selector("t1"), "c1"), Operator.LESS_THAN,
                                                                     new Literal(3L)));
        select3.setProperty(Property.SELECT_CRITERIA, new Comparison(new PropertyValue(selector("t1"), "c1"),
                                                                     Operator.GREATER_THAN, new Literal(1L)));

        // Execute the rule ...
        print(access);
        PlanNode result = executeRules(access);
        print(result);

        // Compare results ...
        assertThat(result, is(sameInstance(access)));
        assertChildren(access, project);
        PlanNode newSelect = project.getFirstChild();
        assertThat(newSelect.getType(), is(Type.SELECT));
        assertThat(newSelect.getSelectors(), is(access.getSelectors()));
        assertThat(newSelect.getParent(), is(sameInstance(project)));
        Between between = newSelect.getProperty(Property.SELECT_CRITERIA, Between.class);
        assertThat(between.getOperand(), is(select2.getProperty(Property.SELECT_CRITERIA, Comparison.class).getOperand1()));
        assertThat(between.getLowerBound(), is(select3.getProperty(Property.SELECT_CRITERIA, Comparison.class).getOperand2()));
        assertThat(between.getUpperBound(), is(select2.getProperty(Property.SELECT_CRITERIA, Comparison.class).getOperand2()));
        assertThat(between.isLowerBoundIncluded(), is(false));
        assertThat(between.isUpperBoundIncluded(), is(false));
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     * </pre>
     */
    @Test
    public void shouldReplaceComparisonsSpecifyingInclusiveRangeWithBetweenConstraint() {
        // Each of the PROJECT, SELECT, and SELECT nodes must have the names of the selectors that they apply to ...
        PlanNode access = new PlanNode(Type.ACCESS, selector("t1"));
        PlanNode project = new PlanNode(Type.PROJECT, access, selector("t1"));
        PlanNode select1 = new PlanNode(Type.SELECT, project, selector("t1"));
        PlanNode select2 = new PlanNode(Type.SELECT, select1, selector("t1"));
        PlanNode select3 = new PlanNode(Type.SELECT, select2, selector("t1"));
        PlanNode source = new PlanNode(Type.SOURCE, select3, selector("t1"));
        source.setProperty(Property.SOURCE_NAME, selector("t1"));
        select1.setProperty(Property.SELECT_CRITERIA, new Comparison(new PropertyValue(selector("t1"), "c2"), Operator.EQUAL_TO,
                                                                     new Literal(100L)));
        select2.setProperty(Property.SELECT_CRITERIA, new Comparison(new PropertyValue(selector("t1"), "c1"),
                                                                     Operator.LESS_THAN_OR_EQUAL_TO, new Literal(3L)));
        select3.setProperty(Property.SELECT_CRITERIA, new Comparison(new PropertyValue(selector("t1"), "c1"),
                                                                     Operator.GREATER_THAN_OR_EQUAL_TO, new Literal(1L)));

        // Execute the rule ...
        print(access);
        PlanNode result = executeRules(access);
        print(result);

        // Compare results ...
        assertThat(result, is(sameInstance(access)));
        assertChildren(access, project);
        PlanNode newSelect = project.getFirstChild();
        assertThat(newSelect.getType(), is(Type.SELECT));
        assertThat(newSelect.getSelectors(), is(access.getSelectors()));
        assertThat(newSelect.getParent(), is(sameInstance(project)));
        Between between = newSelect.getProperty(Property.SELECT_CRITERIA, Between.class);
        assertThat(between.getOperand(), is(select2.getProperty(Property.SELECT_CRITERIA, Comparison.class).getOperand1()));
        assertThat(between.getLowerBound(), is(select3.getProperty(Property.SELECT_CRITERIA, Comparison.class).getOperand2()));
        assertThat(between.getUpperBound(), is(select2.getProperty(Property.SELECT_CRITERIA, Comparison.class).getOperand2()));
        assertThat(between.isLowerBoundIncluded(), is(true));
        assertThat(between.isUpperBoundIncluded(), is(true));
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     * </pre>
     */
    @Test
    public void shouldReplaceComparisonsSpecifyingExclusiveRangeWithNotBetweenConstraint() {
        // Each of the PROJECT, SELECT, and SELECT nodes must have the names of the selectors that they apply to ...
        PlanNode access = new PlanNode(Type.ACCESS, selector("t1"));
        PlanNode project = new PlanNode(Type.PROJECT, access, selector("t1"));
        PlanNode select1 = new PlanNode(Type.SELECT, project, selector("t1"));
        PlanNode select2 = new PlanNode(Type.SELECT, select1, selector("t1"));
        PlanNode select3 = new PlanNode(Type.SELECT, select2, selector("t1"));
        PlanNode source = new PlanNode(Type.SOURCE, select3, selector("t1"));
        source.setProperty(Property.SOURCE_NAME, selector("t1"));
        select1.setProperty(Property.SELECT_CRITERIA, new Comparison(new PropertyValue(selector("t1"), "c2"), Operator.EQUAL_TO,
                                                                     new Literal(100L)));
        select2.setProperty(Property.SELECT_CRITERIA, new Comparison(new PropertyValue(selector("t1"), "c1"),
                                                                     Operator.GREATER_THAN, new Literal(3L)));
        select3.setProperty(Property.SELECT_CRITERIA, new Comparison(new PropertyValue(selector("t1"), "c1"), Operator.LESS_THAN,
                                                                     new Literal(1L)));

        // Execute the rule ...
        print(access);
        PlanNode result = executeRules(access);
        print(result);

        // Compare results ...
        assertThat(result, is(sameInstance(access)));
        assertChildren(access, project);
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Related Classes of org.modeshape.jcr.query.plan.PlanNode

  • org.modeshape.jcr.query.AbstractQueryTest
  • org.modeshape.jcr.query.engine.IndexPlan
  • org.modeshape.jcr.query.engine.ScanningQueryEngine
  • org.modeshape.jcr.query.optimize.AddAccessNodes
  • org.modeshape.jcr.query.optimize.AddAccessNodesTest
  • org.modeshape.jcr.query.optimize.AddIndexes
  • org.modeshape.jcr.query.optimize.AddJoinConditionColumnsToSources
  • org.modeshape.jcr.query.optimize.AddJoinConditionColumnsToSourcesTest
  • org.modeshape.jcr.query.optimize.AddOrderingColumnsToSources
  • org.modeshape.jcr.query.optimize.ChooseJoinAlgorithm
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