Examples of org.apache.jackrabbit.core.query.jsr283.qom.Comparison

Package org.apache.jackrabbit.core.query.jsr283.qom

Examples of org.apache.jackrabbit.core.query.jsr283.qom.Comparison

org.apache.jackrabbit.core.query.jsr283.qom.Column
Filters node-tuples based on the outcome of a binary operation.
For any comparison, {@link #getOperand2 operand2} always evaluates to ascalar value. In contrast, {@link #getOperand1 operand1} may evaluate toan array of values (for example, the value of a multi-valued property), in which case the comparison is separately performed for each element of the array, and the Comparison constraint is satisfied as a whole if the comparison against any element of the array is satisfied.
If {@link #getOperand1 operand1} and {@link #getOperand2 operand2}evaluate to values of different property types, the value of {@link #getOperand2 operand2} is converted to the property type ofthe value of {@link #getOperand1 operand1}. If the type conversion fails, the query is invalid.
Certain operators may only be applied to values of certain property types. The following describes required operator support for each property type:
- STRING
  - EqualTo, NotEqualTo, LessThan, LessThanOrEqualTo, GreaterThan, GreaterThanOrEqualTo, Like
- BINARY
  - None
- DATE, LONG, DOUBLE, DECIMAL
  - EqualTo, NotEqualTo, LessThan, LessThanOrEqualTo, GreaterThan, GreaterThanOrEqualTo
- BOOLEAN, NAME, PATH, REFERENCE, WEAKREFERENCE, URI
  - EqualTo, NotEqualTo
If {@link #getOperator operator} is not supported for the property type of{@link #getOperand1 operand1}, the query is invalid.
If {@link #getOperand1 operand1} evaluates to null (for example, if theoperand evaluates the value of a property which does not exist), the constraint is not satisfied.
The EqualTo operator is satisfied only if the value of {@link #getOperand1 operand1} equals the value of{@link #getOperand2 operand2}.
The NotEqualTo operator is satisfied unless the value of {@link #getOperand1 operand1} equals the value of{@link #getOperand2 operand2}.
The LessThan operator is satisfied only if the value of {@link #getOperand1 operand1} is ordered before the value of{@link #getOperand2 operand2}.
The LessThanOrEqualTo operator is satisfied unless the value of {@link #getOperand1 operand1} is ordered after the value of{@link #getOperand2 operand2}.
The GreaterThan operator is satisfied only if the value of {@link #getOperand1 operand1} is ordered after the value of{@link #getOperand2 operand2}.
The GreaterThanOrEqualTo operator is satisfied unless the value of {@link #getOperand1 operand1} is ordered before the value of{@link #getOperand2 operand2}.
The Like operator is satisfied only if the value of {@link #getOperand1 operand1} matches the pattern specified by thevalue of {@link #getOperand2 operand2}, where in the pattern:
- the character "%" matches zero or more characters, and
- the character "_" (underscore) matches exactly one character, and
- the string "\x" matches the character "x", and
- all other characters match themselves.
@since JCR 2.0

     * Test case for {@link QueryObjectModelFactory#and(Constraint, Constraint)}
     */
    public void testAnd() throws RepositoryException {
        PropertyExistence c1 = qomFactory.propertyExistence(propertyName1);
        PropertyExistence c2 = qomFactory.propertyExistence(propertyName2);
        And and = qomFactory.and(c1, c2);
        assertTrue("Not a PropertyExistence constraint",
                and.getConstraint1() instanceof PropertyExistence);
        assertTrue("Not a PropertyExistence constraint",
                and.getConstraint2() instanceof PropertyExistence);
    }

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    /**
     * Test case for {@link QueryObjectModelFactory#bindVariable(String)}
     */
    public void testBindVariableValue() throws RepositoryException {
        BindVariableValue bindVar = qomFactory.bindVariable(propertyName1);
        assertEquals("Wrong variable name", propertyName1, bindVar.getBindVariableName());
    }

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    /**
     * Test case for {@link QueryObjectModelFactory#comparison(DynamicOperand, int, StaticOperand)}
     */
    public void testComparison() throws RepositoryException {
        PropertyValue op1 = qomFactory.propertyValue(propertyName1);
        BindVariableValue op2 = qomFactory.bindVariable(VARIABLE_NAME);
        for (Iterator it = OPERATORS.iterator(); it.hasNext(); ) {
            int operator = ((Integer) it.next()).intValue();
            Comparison comp = qomFactory.comparison(op1, operator, op2);
            assertTrue("Not a PropertyValue operand", comp.getOperand1() instanceof PropertyValue);
            assertTrue("Not a BindVariableValue operand", comp.getOperand2() instanceof BindVariableValue);

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            read();
            return literal;
        } else if (currentTokenType == PARAMETER) {
            read();
            String name = readName();
            BindVariableValue var = (BindVariableValue) bindVariables.get(name);
            if (var == null) {
                var = factory.bindVariable(name);
                bindVariables.put(name, var);
            }
            return var;

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    /**
     * Test case for {@link QueryObjectModelFactory#childNode(String)}
     */
    public void testChildNode() throws RepositoryException {
        ChildNode childNode = qomFactory.childNode(testRootNode.getPath());
        assertEquals("Wrong path", testRootNode.getPath(), childNode.getPath());
        assertNull("Selector must be null", childNode.getSelectorName());
    }

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    /**
     * Test case for {@link QueryObjectModelFactory#childNode(String, String)}
     */
    public void testChildNodeWithSelector() throws RepositoryException {
        ChildNode childNode = qomFactory.childNode(SELECTOR_NAME1, testRootNode.getPath());
        assertEquals("Wrong path", testRootNode.getPath(), childNode.getPath());
        assertEquals("Wrong selector name", SELECTOR_NAME1, childNode.getSelectorName());
    }

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    /**
     * Test case for {@link QueryObjectModelFactory#childNodeJoinCondition(String, String)}
     */
    public void testChildNodeJoinCondition() throws RepositoryException {
        ChildNodeJoinCondition cond = qomFactory.childNodeJoinCondition(SELECTOR_NAME1, SELECTOR_NAME2);
        assertEquals("Wrong selector name", cond.getChildSelectorName(), SELECTOR_NAME1);
        assertEquals("Wrong selector name", cond.getParentSelectorName(), SELECTOR_NAME2);
    }

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    /**
     * Test case for {@link QueryObjectModelFactory#column(String)}
     */
    public void testColumn() throws RepositoryException {
        Column col = qomFactory.column(propertyName1);
        assertNull("Selector must be null", col.getSelectorName());
        assertEquals("Wrong property name", propertyName1, col.getPropertyName());
        assertEquals("Wrong column name", propertyName1, col.getColumnName());
    }

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    /**
     * Test case for {@link QueryObjectModelFactory#column(String)}
     */
    public void testColumnAllProperties() throws RepositoryException {
        Column col = qomFactory.column(null);
        assertNull("Selector must be null", col.getSelectorName());
        assertNull("Property name must be null", col.getPropertyName());
        assertNull("Column name must be null", col.getColumnName());
    }

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    /**
     * Test case for {@link QueryObjectModelFactory#column(String, String)}
     */
    public void testColumnWithColumnName() throws RepositoryException {
        Column col = qomFactory.column(propertyName1, COLUMN_NAME);
        assertNull("Selector must be null", col.getSelectorName());
        assertEquals("Wrong property name", propertyName1, col.getPropertyName());
        assertEquals("Wrong column name", COLUMN_NAME, col.getColumnName());
    }

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