DataPath

open class DataPath : PropertyPath, BindingPath

Used together with DataQuery to represent a select, expand or sort item which is a single-part or multi-part path expression. For example, a path whose OData URL representation is “Address/City” might be used to access the “City” property in a complex-typed “Address” property. Also used to represent paths in OData CSDL.

  • Sets the item index to address an element of an entity collection.

    Declaration

    Swift

    open func atIndex(_ itemIndex: Int) -> DataPath

    Parameters

    itemIndex

    Zero-based index of the element in the collection.

    Return Value

    This data path.

  • Declaration

    Swift

    open func changeRoot(newRoot: DataPath) -> DataPath

    Parameters

    newRoot

    Replacement for rootProperty.

    Return Value

    A copy of this data path with the rootProperty changed.

  • Data type with a DataType.code of DataType.PATH, DataType.PATH_EXPRESSION, DataType.ANNOTATION_PATH, DataType.NAVIGATION_PATH, DataType.STRUCTURAL_PATH, or DataType.DYNAMIC_PATH.

    Declaration

    Swift

    override open var dataType: DataType { get }

  • The defined property for a single-part path or the terminating defined property for a multi-part path.

    See also

    of, path.

    Declaration

    Swift

    public final var definedProperty: Property? { get }

  • Declaration

    Swift

    open func dotString() -> String

    Return Value

    the OData CSDL path expression syntax for this path (‘.’-separated segments).

  • Construct a new multi-part path, with this path as the parentPath.

    Declaration

    Swift

    open func dynamicPath(_ child: String) -> DataPath

    Parameters

    child

    Value for dynamicProperty in the new path.

    Return Value

    A new multi-part path.

  • The dynamic property for a single-part path or the terminating dynamic property for a multi-part path.

    See also

    ofDynamic, dynamicPath.

    Declaration

    Swift

    public final var dynamicProperty: String? { get }

  • The entity key in an entity collection.

    Declaration

    Swift

    open var entityKey: EntityKey? { get }

  • The entity set for an entity collection.

    Declaration

    Swift

    open var entitySet: EntitySet? { get }

  • Declaration

    Swift

    open class func from(_ resource: EntitySet) -> DataPath

    Parameters

    resource

    Value for entitySet in the new path.

    Return Value

    A new resource path.

  • Declaration

    Swift

    open func hasSegments() -> Bool

    Return Value

    true if this path has segments.

  • true if this path has type DataType.NAVIGATION_PATH.

    Declaration

    Swift

    open var isNavigation: Bool { get }

  • Declaration

    Swift

    open func isNavigationProperty(_ property: Property? = nil) -> Bool

    Parameters

    property

    Specified target property, or `null’ to check if this path is a simple navigation property path.

    Return Value

    true if this path is simply for the specified target navigation property.

  • Declaration

    Swift

    open func isProperty(_ property: Property? = nil) -> Bool

    Parameters

    property

    Specified target property, or `null’ to check if this path is a simple property path.

    Return Value

    true if this path is simply for the specified target property.

  • true if this path has type DataType.STRUCTURAL_PATH.

    Declaration

    Swift

    open var isStructural: Bool { get }

  • Declaration

    Swift

    open func isStructuralProperty(_ property: Property? = nil) -> Bool

    Parameters

    property

    Specified target property, or `null’ to check if this path is a simple structural property path.

    Return Value

    true if this path is simply for the specified target structural property.

  • The index of an element in a collection.

    Declaration

    Swift

    open var itemIndex: Int? { get }

  • Declaration

    Swift

    open class func lambda(_ name: String) -> DataPath

    Parameters

    name

    Lambda variable name.

    Return Value

    A new lambda-variable path (for use with ‘any’ and ‘all’ lambda operators).

  • The lambda variable for a lambda variable path.

    See also

    lambda.

    Declaration

    Swift

    public final var lambdaVariable: String? { get }

  • Declaration

    Swift

    open class func of(_ property: Property) -> DataPath

    Parameters

    property

    Value for definedProperty in the new path.

    Return Value

    A new property path.

  • Construct a new single-part path.

    Declaration

    Swift

    open class func ofDynamic(_ start: String) -> DataPath

    Parameters

    start

    Value for dynamicProperty in the new path.

    Return Value

    A new single-part path.

  • The parent path for a multi-part path; nil for a single-part path.

    See also

    path.

    Declaration

    Swift

    open var parentPath: DataPath? { get }

  • Declaration

    Swift

    open func path(_ child: Property) -> DataPath

    Parameters

    child

    Value for definedProperty in the new path.

    Return Value

    A new multi-part path, with this path as the parentPath.

  • The ‘/’-separated segments in this path, as a list.

    Declaration

    Swift

    open var pathSegments: StringList { get }

  • Data type code of DataType.PATH, DataType.PATH_EXPRESSION, DataType.ANNOTATION_PATH, DataType.NAVIGATION_PATH, DataType.STRUCTURAL_PATH, or DataType.DYNAMIC_PATH.

    Declaration

    Swift

    open var pathType: Int { get }

  • The definedProperty from the topmost parentPath in this path, or nil if unknown.

    Declaration

    Swift

    open var rootProperty: Property? { get }

  • The number of segments in this path.

    Declaration

    Swift

    open var segmentCount: Int { get }

  • See also

    withSegments.

    Declaration

    Swift

    open class func toDynamic(segments: StringList) -> DataPath

    Parameters

    segments

    Path segments. Must not be empty.

    Return Value

    A new data path with the specified type, using chained parentPath and dynamicProperty rather than pathSegments.

  • Declaration

    Swift

    override open func toPath() -> DataPath

    Return Value

    this property or path, expressed as a DataPath.

  • Declaration

    Swift

    override open func toString() -> String

    Return Value

    the OData CSDL path expression syntax for this path (‘/’-separated segments).

  • Declaration

    Swift

    override open func unwrap() -> DataValue

    Return Value

    The path, property, constant value or query function/operator call which is wrapped by this object.

  • Sets the entity key to address an element of an entity collection.

    Declaration

    Swift

    open func withKey(_ entityKey: EntityKey) -> DataPath

    Parameters

    entityKey

    Entity key of the element in the entity collection.

    Return Value

    This data path.

  • Declaration

    Swift

    open class func withSegments(type: Int, segments: StringList) -> DataPath

    Parameters

    type

    Value for pathType.
    segments

    Value for pathSegments.

    Return Value

    A new data path with the specified type and segments.