API Reference > presentation-common > Content > Descriptor Descriptor Class Data structure that describes content: fields, sorting, filtering, format, etc. Descriptor may be changed to control how content is created. Implements DescriptorSource Methods Name Description constructor(source: DescriptorSource): Descriptor Construct a new Descriptor using a DescriptorSource createDescriptorOverrides(): DescriptorOverrides Create descriptor overrides object from this descriptor. getFieldByName(name: string, recurse?: boolean): undefined | Field Get field by its name toCompressedJSON(): CompressedDescriptorJSON Serialize Descriptor to compressed JSON toJSON(): DescriptorJSON Serialize this object to JSON fromJSON(json: undefined | string | DescriptorJSON | CompressedDescriptorJSON): undefined | Descriptor Static Deserialize Descriptor from JSON Properties Name Type Description categories Readonly CategoryDescription[] A list of content field categories used in this descriptor connectionId Readonly string Id of the connection used to create the descriptor contentFlags Readonly number ContentFlags used to create the descriptor contentOptions Readonly any Extended options used to create the descriptor displayType Readonly string Display type used to create the descriptor fields Readonly Field[] A list of fields contained in the descriptor filterExpression undefined | string Content filtering ECExpression inputKeysHash Readonly string Hash of the input keys used to create the descriptor selectClasses Readonly SelectClassInfo[] A list of classes that will be selected when creating content with this descriptor selectionInfo Readonly undefined | SelectionInfo Selection info used to create the descriptor sortDirection undefined | SortDirection Sorting direction sortingField undefined | Field Field used to sort the content Defined in presentation/common/src/presentation-common/content/Descriptor.ts Line 263 Last Updated: 29 November, 2022