Examples of org.exolab.jms.selector.Type

org.exolab.jms.selector.Type
This class provides an enumeration of the supported expression types. @version $Revision: 1.1 $ $Date: 2004/11/26 01:50:45 $ @author Tim Anderson @see Expression @see SBool @see SNumber @see SString

     * expected
     */
    public static void check(final SelectorAST node, final Type expected)
        throws TypeMismatchException {


        Type type = node.getReturnType();
        if (type != expected && type != Type.UNDEFINED) {
            String msg = "expecting a " + expected + " expression, found a "
                + type;
            throw new TypeMismatchException(node.getContext(), msg);
        }

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     */
    public static void check(final String operator, final SelectorAST node,
                             final Type expected)
        throws TypeMismatchException {


        Type type = node.getReturnType();
        if (type != expected && type != Type.UNDEFINED) {
            String msg = "expecting a " + expected
                + " expression for operator " + operator + ", found a " + type;
            throw new TypeMismatchException(node.getContext(), msg);
        }

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    public static void checkComparison(final String operator,
                                       final SelectorAST left,
                                       final SelectorAST right)
        throws TypeMismatchException {


        Type lhs = left.getReturnType();
        Type rhs = right.getReturnType();


        if (lhs == Type.UNDEFINED || rhs == Type.UNDEFINED) {
            // can't evaluate this at parse time.
        } else if (lhs == Type.STRING && rhs == Type.STRING) {
            checkStringComparison(operator, left, right);

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Related Classes of org.exolab.jms.selector.Type

org.exolab.jms.selector.parser.TypeChecker

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