/**
* Adds an entry to the directory.
*
* @param PelEntry the entry that will be added. If the entry is not
* valid in this IFD (as per {@link isValidTag()}) an
* {@link PelInvalidDataException} is thrown.
*
* @todo The entry will be identified with its tag, so each
* directory can only contain one entry with each tag. Is this a
* bug?
*/
function addEntry(PelEntry $e)
{
if ($this->isValidTag($e->getTag())) {
$e->setIfdType($this->type);
$this->entries[$e->getTag()] = $e;
} else {
throw new PelInvalidDataException("IFD %s cannot hold\n%s", $this->getName(), $e->__toString());
}
}
