name = $name;
$this->isUDF = $isUDF;
$this->expressions = array();
}
public function addExpression($op, $value)
{
$expression = new QueryFieldExpression($op, $value);
$this->expressions[] = $expression;
}
public function asXml()
{
$str = "";
foreach ($this->expressions as $e) {
$str .= $e->asXml();
}
if ($this->isUDF) {
return "{$this->name}{$str}";
} else {
return "{$this->name}{$str}";
}
}
}