Examples with Expression org.teiid.language.Expression used on opensource projects

Example 61 with Expression

use of org.teiid.language.Expression in project teiid by teiid.

the class IdentifierFunctionModifier method translate.

public List<?> translate(Function function) {
    List<Object> objs = new ArrayList<Object>();
    List<Expression> parms = function.getParameters();
    objs.add(function.getName().substring(function.getName().indexOf('_') + 1));
    objs.add(SQLConstants.Tokens.LPAREN);
    for (Iterator<Expression> iter = parms.iterator(); iter.hasNext(); ) {
        Expression expr = iter.next();
        if (expr instanceof ColumnReference) {
            boolean dotAll = false;
            boolean useSelector = false;
            ColumnReference cr = (ColumnReference) expr;
            Column c = cr.getMetadataObject();
            if (c != null) {
                if ("\"mode:properties\"".equalsIgnoreCase(c.getSourceName())) {
                    // $NON-NLS-1$
                    dotAll = true;
                    useSelector = true;
                } else if ("\"jcr:path\"".equalsIgnoreCase(c.getSourceName())) {
                    // $NON-NLS-1$
                    useSelector = true;
                }
            }
            if (useSelector) {
                NamedTable nt = ((ColumnReference) expr).getTable();
                if (nt.getCorrelationName() != null) {
                    objs.add(nt.getCorrelationName());
                } else {
                    objs.add(nt);
                }
            } else {
                objs.add(expr);
            }
            if (dotAll) {
                // $NON-NLS-1$
                objs.add(".*");
            }
        } else {
            objs.add(expr);
        }
        if (iter.hasNext()) {
            // $NON-NLS-1$
            objs.add(", ");
        }
    }
    objs.add(SQLConstants.Tokens.RPAREN);
    return objs;
}