Examples of org.apache.jackrabbit.spi.commons.query.jsr283.qom.QueryObjectModel

Package org.apache.jackrabbit.spi.commons.query.jsr283.qom

Examples of org.apache.jackrabbit.spi.commons.query.jsr283.qom.QueryObjectModel

org.apache.jackrabbit.spi.commons.query.jsr283.qom.QueryObjectModel
A query in the JCR query object model.
The JCR query object model describes the queries that can be evaluated by a JCR repository independent of any particular query language, such as SQL.
A query consists of:
- a source. When the query is evaluated, the source evaluates its selectors and the joins between them to produce a (possibly empty) set of node-tuples. This is a set of 1-tuples if the query has one selector (and therefore no joins), a set of 2-tuples if the query has two selectors (and therefore one join), a set of 3-tuples if the query has three selectors (two joins), and so forth.
- an optional constraint. When the query is evaluated, the constraint filters the set of node-tuples.
- a list of zero or more orderings. The orderings specify the order in which the node-tuples appear in the query results. The relative order of two node-tuples is determined by evaluating the specified orderings, in list order, until encountering an ordering for which one node-tuple precedes the other. If no orderings are specified, or if for none of the specified orderings does one node-tuple precede the other, then the relative order of the node-tuples is implementation determined (and may be arbitrary).
- a list of zero or more columns to include in the tabular view of the query results. If no columns are specified, the columns available in the tabular view are implementation determined, but minimally include, for each selector, a column for each single-valued non-residual property of the selector's node type.
The query object model representation of a query is created by factory methods in the {@link QueryObjectModelFactory}. @since JCR 2.0


    /**
     * Test case for {@link QueryObjectModelFactory#propertyValue(String, String)}
     */
    public void testPropertyValueWithSelector() throws RepositoryException {
        PropertyValue propVal = qomFactory.propertyValue(SELECTOR_NAME1, propertyName1);
        assertEquals("Wrong selector name", SELECTOR_NAME1, propVal.getSelectorName());
        assertEquals("Wrong property name", propertyName1, propVal.getPropertyName());
    }

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    /**
     * Test case for {@link QueryObjectModelFactory#upperCase(DynamicOperand)}
     */
    public void testUpperCase() throws RepositoryException {
        PropertyValue propValue = qomFactory.propertyValue(propertyName1);
        UpperCase upper = qomFactory.upperCase(propValue);
        assertTrue("Not a property value operand", upper.getOperand() instanceof PropertyValue);
    }

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        }
    }


    public void testCreateQuery() throws RepositoryException {
        Selector selector = qomFactory.selector(testNodeType);
        QueryObjectModel qom = qomFactory.createQuery(selector, null, null, null);
        assertTrue("Not a selector source", qom.getSource() instanceof Selector);
        assertNull("Constraint must be null", qom.getConstraint());
        assertEquals("Wrong size of orderings", 0, qom.getOrderings().length);
        assertEquals("Wrong size of columns", 0, qom.getColumns().length);
    }

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    }


    public void testCreateQueryWithConstraint() throws RepositoryException {
        Selector selector = qomFactory.selector(testNodeType);
        PropertyExistence propExist = qomFactory.propertyExistence(propertyName1);
        QueryObjectModel qom = qomFactory.createQuery(
                selector, propExist, null, null);
        assertTrue("Not a selector source", qom.getSource() instanceof Selector);
        assertTrue("Not a property existence constraint", qom.getConstraint() instanceof PropertyExistence);
        assertEquals("Wrong size of orderings", 0, qom.getOrderings().length);
        assertEquals("Wrong size of columns", 0, qom.getColumns().length);
    }

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    public void testCreateQueryWithConstraintAndOrdering() throws RepositoryException {
        Selector selector = qomFactory.selector(testNodeType);
        PropertyExistence propExist = qomFactory.propertyExistence(propertyName1);
        PropertyValue propValue = qomFactory.propertyValue(propertyName1);
        Ordering ordering = qomFactory.ascending(propValue);
        QueryObjectModel qom = qomFactory.createQuery(selector, propExist,
                new Ordering[]{ordering}, null);
        assertTrue("Not a selector source", qom.getSource() instanceof Selector);
        assertTrue("Not a property existence constraint", qom.getConstraint() instanceof PropertyExistence);
        assertEquals("Wrong size of orderings", 1, qom.getOrderings().length);
        assertEquals("Wrong size of columns", 0, qom.getColumns().length);
    }

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        Selector selector = qomFactory.selector(testNodeType);
        PropertyExistence propExist = qomFactory.propertyExistence(propertyName1);
        PropertyValue propValue = qomFactory.propertyValue(propertyName1);
        Ordering ordering = qomFactory.ascending(propValue);
        Column column = qomFactory.column(propertyName1);
        QueryObjectModel qom = qomFactory.createQuery(selector, propExist,
                new Ordering[]{ordering}, new Column[]{column});
        assertTrue("Not a selector source", qom.getSource() instanceof Selector);
        assertTrue("Not a property existence constraint", qom.getConstraint() instanceof PropertyExistence);
        assertEquals("Wrong size of orderings", 1, qom.getOrderings().length);
        assertEquals("Wrong size of columns", 1, qom.getColumns().length);
    }

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        assertEquals("Wrong size of columns", 1, qom.getColumns().length);
    }


    public void testCreateQueryFromSource() throws RepositoryException {
        Source selector = qomFactory.selector(testNodeType);
        QueryObjectModel qom = qomFactory.createQuery(selector, null, null, null);
        assertTrue("Not a selector source", qom.getSource() instanceof Selector);
        assertNull("Constraint must be null", qom.getConstraint());
        assertEquals("Wrong size of orderings", 0, qom.getOrderings().length);
        assertEquals("Wrong size of columns", 0, qom.getColumns().length);
    }

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    }


    public void testCreateQueryFromSourceWithConstraint() throws RepositoryException {
        Source selector = qomFactory.selector(testNodeType);
        PropertyExistence propExist = qomFactory.propertyExistence(propertyName1);
        QueryObjectModel qom = qomFactory.createQuery(
                selector, propExist, null, null);
        assertTrue("Not a selector source", qom.getSource() instanceof Selector);
        assertTrue("Not a property existence constraint", qom.getConstraint() instanceof PropertyExistence);
        assertEquals("Wrong size of orderings", 0, qom.getOrderings().length);
        assertEquals("Wrong size of columns", 0, qom.getColumns().length);
    }

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    public void testCreateQueryFromSourceWithConstraintAndOrdering() throws RepositoryException {
        Source selector = qomFactory.selector(testNodeType);
        PropertyExistence propExist = qomFactory.propertyExistence(propertyName1);
        PropertyValue propValue = qomFactory.propertyValue(propertyName1);
        Ordering ordering = qomFactory.ascending(propValue);
        QueryObjectModel qom = qomFactory.createQuery(selector, propExist,
                new Ordering[]{ordering}, null);
        assertTrue("Not a selector source", qom.getSource() instanceof Selector);
        assertTrue("Not a property existence constraint", qom.getConstraint() instanceof PropertyExistence);
        assertEquals("Wrong size of orderings", 1, qom.getOrderings().length);
        assertEquals("Wrong size of columns", 0, qom.getColumns().length);
    }

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        Source selector = qomFactory.selector(testNodeType);
        PropertyExistence propExist = qomFactory.propertyExistence(propertyName1);
        PropertyValue propValue = qomFactory.propertyValue(propertyName1);
        Ordering ordering = qomFactory.ascending(propValue);
        Column column = qomFactory.column(propertyName1);
        QueryObjectModel qom = qomFactory.createQuery(selector, propExist,
                new Ordering[]{ordering}, new Column[]{column});
        assertTrue("Not a selector source", qom.getSource() instanceof Selector);
        assertTrue("Not a property existence constraint", qom.getConstraint() instanceof PropertyExistence);
        assertEquals("Wrong size of orderings", 1, qom.getOrderings().length);
        assertEquals("Wrong size of columns", 1, qom.getColumns().length);
    }

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