public function getExpression($metaValue)
	{
		if (!isset($this->exprs[$metaValue]))
		{
			throw new InvalidArgumentException('Invalid meta value ' . $metaValue);
		}

		return $this->exprs[$metaValue];
	}
public function getExpression($metaValue)
	{
		if (!isset($this->exprs[$metaValue]))
		{
			throw new InvalidArgumentException('Invalid meta value ' . $metaValue);
		}

		return $this->exprs[$metaValue];
	}
public function getExpression ( $ metaValue ) { if ( ! isset ( $ this -> exprs [ $ metaValue ] ) ) { throw new InvalidArgumentException ( 'Invalid meta value ' . $ metaValue ) ; } return $ this -> exprs [ $ metaValue ] ; }
Get the expression associated with a meta value

@param  integer $metaValue
@return string
Get the expression associated with a meta value