doctrine / mongodb-odm

            $attr = $reference->{'discriminator-field'};

            $mapping['discriminatorField'] = (string) $attr['name'];

        }

        if (isset($reference->{'discriminator-map'})) {

            foreach ($reference->{'discriminator-map'}->{'discriminator-mapping'} as $discriminatorMapping) {

                $attr = $discriminatorMapping->attributes();

                $mapping['discriminatorMap'][(string) $attr['value']] = (string) $attr['class'];

            }

        }

        if (isset($reference->{'default-discriminator-value'})) {

            $mapping['defaultDiscriminatorValue'] = (string) $reference->{'default-discriminator-value'}['value'];

        }

                isset($discrField['name']) ? (string) $discrField['name'] : (string) $discrField['fieldName']

            );

        }

        if (isset($xmlRoot->{'discriminator-map'})) {

            $map = array();

            foreach ($xmlRoot->{'discriminator-map'}->{'discriminator-mapping'} AS $discrMapElement) {

                $map[(string) $discrMapElement['value']] = (string) $discrMapElement['class'];

            }

            $class->setDiscriminatorMap($map);

        }

        if (isset($xmlRoot->{'default-discriminator-value'})) {

            $class->setDefaultDiscriminatorValue((string) $xmlRoot->{'default-discriminator-value'}['value']);

        }

            $attr = $embed->{'discriminator-field'};

            $mapping['discriminatorField'] = (string) $attr['name'];

        }

        if (isset($embed->{'discriminator-map'})) {

            foreach ($embed->{'discriminator-map'}->{'discriminator-mapping'} as $discriminatorMapping) {

                $attr = $discriminatorMapping->attributes();

                $mapping['discriminatorMap'][(string) $attr['value']] = (string) $attr['class'];

            }

        }

        if (isset($embed->{'default-discriminator-value'})) {

            $mapping['defaultDiscriminatorValue'] = (string) $embed->{'default-discriminator-value'}['value'];

        }