Doctrine\ODM\PHPCR\Mapping\ClassMetadata::validateAndCompleteFieldMapping PHP Method

    protected function validateAndCompleteFieldMapping(array $mapping, ClassMetadata $inherited = null, $isField = true, $phpcrLabel = 'property')
    {
        if ($inherited) {
            if (!isset($mapping['inherited'])) {
                $this->inheritedFields[$mapping['fieldName']] = $inherited->name;
            }
            if (!isset($mapping['declared'])) {
                $mapping['declared'] = $inherited->name;
            }
            $this->reflFields[$mapping['fieldName']] = $inherited->getReflectionProperty($mapping['fieldName']);
            $this->mappings[$mapping['fieldName']] = $mapping;
            return $mapping;
        }
        if (empty($mapping['fieldName'])) {
            throw new MappingException("Mapping a property requires to specify the field name in '{$this->name}'.");
        }
        if (!is_string($mapping['fieldName'])) {
            throw new MappingException("Field name must be of type string in '{$this->name}'.");
        }
        if (!$this->reflClass->hasProperty($mapping['fieldName'])) {
            throw MappingException::classHasNoField($this->name, $mapping['fieldName']);
        }
        if (empty($mapping['property'])) {
            $mapping['property'] = $mapping['fieldName'];
        }
        if ($phpcrLabel && (!isset($mapping[$phpcrLabel]) || empty($mapping[$phpcrLabel]))) {
            $mapping[$phpcrLabel] = $mapping['fieldName'];
        }
        if ($isField && isset($mapping['assoc'])) {
            $mapping['multivalue'] = true;
            if (empty($mapping['assoc'])) {
                $mapping['assoc'] = $mapping['property'] . 'Keys';
            }
            $mapping['assocNulls'] = $mapping['property'] . 'Nulls';
        }
        if (isset($this->mappings[$mapping['fieldName']])) {
            if (!$isField || empty($mapping['type']) || empty($this->mappings[$mapping['fieldName']]) || $this->mappings[$mapping['fieldName']]['type'] !== $mapping['type']) {
                throw MappingException::duplicateFieldMapping($this->name, $mapping['fieldName']);
            }
        }
        if (!isset($mapping['type'])) {
            throw MappingException::missingTypeDefinition($this->name, $mapping['fieldName']);
        }
        if ($mapping['type'] === 'int') {
            $mapping['type'] = 'long';
        } elseif ($mapping['type'] === 'float') {
            $mapping['type'] = 'double';
        }
        $reflProp = $this->reflClass->getProperty($mapping['fieldName']);
        $reflProp->setAccessible(true);
        $this->reflFields[$mapping['fieldName']] = $reflProp;
        $this->mappings[$mapping['fieldName']] = $mapping;
        return $mapping;
    }