blpapi.SchemaTypeDefinition

class blpapi.SchemaTypeDefinition(handle, sessions)

Representation of a “type” that can be used within a schema.

This class implements a representation of a “type” that can be used within a schema, including both plain types (integers, dates, strings, etc.) and “complex” types. The latter may be a “sequence” or a “choice” allowing either all or one of the named elements respectively. Those elements in turn are each described by a type. In addition to accessors for the type’s structure, this class also offers access to metadata providing a description and deprecation status for the type.

Each SchemaElementDefinition object is associated with a single SchemaTypeDefinition; one SchemaTypeDefinition may be used by zero, one, or many SchemaElementDefinition objects.

SchemaTypeDefinition objects are read-only.

Application clients need never create SchemaTypeDefinition objects directly; applications will typically work with objects returned by other blpapi components.

datatype()

Return type: int
Returns: The data type of this SchemaTypeDefinition.

The possible return values are enumerated in DataType.

description()

Return type: str
Returns: Human readable description of this SchemaTypeDefinition.

elementDefinitions()

Return type: Iterator[SchemaElementDefinition]
Returns: Iterator over SchemaElementDefinitions defined by this SchemaTypeDefinition.

enumeration()

Returns: All possible values of the enumeration defined by this type. None in case this SchemaTypeDefinition is not a enumeration.

getElementDefinition(nameOrIndex)

Parameters

nameOrIndex (Union[str, Name, bytes, int]) – Name or index of the element

Return type

SchemaElementDefinition

Returns

The definition of a specified element.

Raises

NotFoundException – If nameOrIndex is a string and hasElement(nameOrIndex) != True.
IndexOutOfRangeException – If nameOrIndex is an integer and nameOrIndex >= numElementDefinitions()

hasElementDefinition(name)

Parameters: name (Union[str, Name, bytes]) – Item identifier
Return type: bool
Returns: True if this object contains an item with the specified name, False otherwise
Raises: Exception – If name is neither a Name nor a string.

isComplexType()

Return type: bool
Returns: True if this SchemaTypeDefinition represents a sequence or choice type.

isEnumerationType()

Return type: bool
Returns: True if this SchemaTypeDefinition represents an enumeration type, False otherwise.

isSimpleType()

Return type: bool
Returns: True if this SchemaTypeDefinition represents neither a sequence nor a choice type.

name()

Return type: Name
Returns: The name of this SchemaTypeDefinition.

numElementDefinitions()

Return type: int
Returns: The number of SchemaElementDefinition objects.

If this SchemaTypeDefinition is neither a choice nor a sequence this will return 0.

status()

Return type: int
Returns: The deprecation status of this SchemaTypeDefinition.

The possible return values are enumerated in SchemaStatus.

toString(level=0, spacesPerLevel=4)

Parameters

level (int) – Indentation level
spacesPerLevel (int) – Number of spaces per indentation level for this and all nested objects

Return type

str

Returns

This object formatted as a string

If level is negative, suppress indentation of the first line. If spacesPerLevel is negative, format the entire output on one line, suppressing all but the initial indentation (as governed by level).