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  Get Parameter OverrideΒΆ
Get elements of a parameter's definition, as changed for a specific processor.
This may return empty, if there is no change, or a previous change was explicitly deleted.
URI Template
GET /api/mdb-overrides/{instance}/{processor}/parameters/{name}
{instance}Yamcs instance name.
{processor}Processor name.
{name}Parameter name.
This route parameter may contain forward slashes. Alternatively you may also use URL-encoded characters, such as
%2F
Response Type
// A change to a parameter's type.
//
// This can be either due to an alarm or a calibrator change.
interface ParameterOverride {
  // Parameter name
  parameter: string;
  // Default calibrator (when no specific context)
  defaultCalibrator: CalibratorInfo;
  // Calibrators under specific context
  contextCalibrators: ContextCalibratorInfo[];
  // Default alarm properties (when no specific context)
  defaultAlarm: AlarmInfo;
  // Alarm properties under specific context
  contextAlarms: ContextAlarmInfo[];
}
Related Types
interface CalibratorInfo {
  polynomialCalibrator: PolynomialCalibratorInfo;
  splineCalibrator: SplineCalibratorInfo;
  javaExpressionCalibrator: JavaExpressionCalibratorInfo;
  type: Type;
}
interface PolynomialCalibratorInfo {
  // Deprecated, use ``coefficients`` instead
  coefficient: number[];
  coefficients: number[];
}
interface SplineCalibratorInfo {
  // Deprecated, use ``points`` instead
  point: SplinePointInfo[];
  points: SplinePointInfo[];
}
interface SplinePointInfo {
  raw: number;
  calibrated: number;
}
interface JavaExpressionCalibratorInfo {
  formula: string;
}
interface ContextCalibratorInfo {
  // Use ``context`` instead
  comparison: ComparisonInfo[];
  calibrator: CalibratorInfo;
  // Expression describing the context when this calibrator applies
  //
  // Can also be used in UpdateParameterRequest to pass a context
  // that is parsed on the server, according to the rules in the
  // excel spreadsheet. Either this or a comparison has to be
  // used (not both at the same time)
  context: string;
}
interface ComparisonInfo {
  parameter: ParameterInfo;
  operator: OperatorType;
  value: string;
  argument: ArgumentInfo;
}
interface ParameterInfo {
  name: string;
  qualifiedName: string;
  shortDescription: string;
  longDescription: string;
  alias: NamedObjectId[];
  type: ParameterTypeInfo;
  dataSource: DataSourceType;
  usedBy: UsedByInfo;
  ancillaryData: {[key: string]: AncillaryDataInfo};
  // Operations that return aggregate members or array entries
  // may use this field to indicate the path within the parameter.
  path: string[];
}
// Used by external clients to identify an item in the Mission Database
// If namespace is set, then the name is that of an alias, rather than
// the qualified name.
interface NamedObjectId {
  name: string;
  namespace: string;
}
interface ParameterTypeInfo {
  name: string;
  qualifiedName: string;
  shortDescription: string;
  longDescription: string;
  alias: NamedObjectId[];
  // Engineering type
  engType: string;
  dataEncoding: DataEncodingInfo;
  unitSet: UnitInfo[];
  // Default Alarm, effective when no contextual alarm takes precedence.
  defaultAlarm: AlarmInfo;
  // Deprecated, use ``enumValues`` instead
  enumValue: EnumValue[];
  // Value-to-label mappings if this is an enumeration type
  enumValues: EnumValue[];
  // Range-to-label mappings if this is an enumeration type
  enumRanges: EnumRange[];
  absoluteTimeInfo: AbsoluteTimeInfo;
  // Contextual alarms
  contextAlarm: ContextAlarmInfo[];
  member: MemberInfo[];
  arrayInfo: ArrayInfo;
  ancillaryData: {[key: string]: AncillaryDataInfo};
  // Provides hints on how to format the engineering
  // value as a string.
  numberFormat: NumberFormatTypeInfo;
  // True if the engineering type supports signed representation.
  // (only used by integer parameter types)
  signed: boolean;
  // Hint about the range of allowed engineering values
  sizeInBits: number;
  // String representation of a boolean zero (only used by boolean types)
  zeroStringValue: string;
  // String representation of a boolean one (only used by boolean types)
  oneStringValue: string;
  // Which parameters this type is used by. This field is only
  // populated when requesting directly a single parameter type.
  usedBy: ParameterInfo[];
}
interface DataEncodingInfo {
  type: Type;
  littleEndian: boolean;
  sizeInBits: number;
  encoding: string;
  defaultCalibrator: CalibratorInfo;
  // Deprecated, use ``contextCalibrators`` instead
  contextCalibrator: ContextCalibratorInfo[];
  contextCalibrators: ContextCalibratorInfo[];
}
interface UnitInfo {
  unit: string;
}
interface AlarmInfo {
  minViolations: number;
  // Deprecated, use ``staticAlarmRanges`` instead
  staticAlarmRange: AlarmRange[];
  staticAlarmRanges: AlarmRange[];
  // Deprecated, use ``enumerationAlarms`` instead
  enumerationAlarm: EnumerationAlarm[];
  enumerationAlarms: EnumerationAlarm[];
  // only used for enumeration alarms - defines the alarm state if none of the condition above applies
  // as per XTCE description:
  //   defaults to "normal", which is almost always the case.
  //   Setting it to another alarm state permits a form of "inverted logic" where the alarm list can specify the normal states instead of the alarm states.
  defaultLevel: AlarmLevelType;
}
interface AlarmRange {
  level: AlarmLevelType;
  minInclusive: number;
  maxInclusive: number;
  minExclusive: number;
  maxExclusive: number;
}
interface EnumerationAlarm {
  level: AlarmLevelType;
  label: string;
}
// Maps a numeric value to a label
interface EnumValue {
  // Enum value
  value: string;  // String decimal
  // Enum label
  label: string;
  // Description of this enumeration value
  description: string;
}
// Maps a range of numeric values to a label
interface EnumRange {
  // Range start
  min: number;
  // Range end
  max: number;
  // Whether ``min`` is included in this range
  minInclusive: boolean;
  // Whether ``max`` is included in this range
  maxInclusive: boolean;
  // Enum label
  label: string;
  // Description of this enumeration range
  description: string;
}
interface AbsoluteTimeInfo {
  initialValue: string;
  scale: number;
  offset: number;
  offsetFrom: ParameterInfo;
  epoch: string;
}
interface ContextAlarmInfo {
  // Use ``context`` instead
  comparison: ComparisonInfo[];
  alarm: AlarmInfo;
  // Expression describing the context when this alarm applies.
  //
  // Can also be used in UpdateParameterRequest to pass a context
  // that is parsed on the server, according to the rules in the
  // excel spreadsheet. Either this or a comparison has to be
  // used (not both at the same time)
  context: string;
}
interface MemberInfo {
  name: string;
  shortDescription: string;
  longDescription: string;
  alias: NamedObjectId[];
  type: ParameterTypeInfo;
}
interface ArrayInfo {
  type: ParameterTypeInfo;
  dimensions: ParameterDimensionInfo[];
}
interface ParameterDimensionInfo {
  fixedValue: string;  // String decimal
  parameter: ParameterInfo;
  slope: string;  // String decimal
  intercept: string;  // String decimal
}
interface NumberFormatTypeInfo {
  numberBase: string;
  minimumFractionDigits: number;
  maximumFractionDigits: number;
  minimumIntegerDigits: number;
  maximumIntegerDigits: number;
  negativeSuffix: string;
  positiveSuffix: string;
  negativePrefix: string;
  positivePrefix: string;
  showThousandsGrouping: boolean;
  notation: string;
}
interface UsedByInfo {
  algorithm: AlgorithmInfo[];
  container: ContainerInfo[];
}
interface AlgorithmInfo {
  // Algorithm name
  name: string;
  qualifiedName: string;
  shortDescription: string;
  longDescription: string;
  alias: NamedObjectId[];
  scope: Scope;
  // Type of algorithm
  type: Type;
  // Language if this is a custom algorithm
  language: string;
  // Code if this is a custom algorithm
  text: string;
  inputParameter: InputParameterInfo[];
  outputParameter: OutputParameterInfo[];
  onParameterUpdate: ParameterInfo[];
  onPeriodicRate: string[];  // String decimal
  // Operands and operators in Reverse Polish Notation if type ``MATH``.
  mathElements: MathElement[];
}
interface InputParameterInfo {
  parameter: ParameterInfo;
  inputName: string;
  parameterInstance: number;
  mandatory: boolean;
  argument: ArgumentInfo;
}
interface ArgumentInfo {
  name: string;
  description: string;
  initialValue: string;
  type: ArgumentTypeInfo;
}
interface ArgumentTypeInfo {
  engType: string;
  dataEncoding: DataEncodingInfo;
  unitSet: UnitInfo[];
  // Enumeration states (only used by enumerated arguments)
  enumValue: EnumValue[];
  // Minimum value (only used by integer and float arguments)
  rangeMin: number;
  // Maximum value (only used by integer and float arguments)
  rangeMax: number;
  // Member information (only used by aggregate arguments)
  member: ArgumentMemberInfo[];
  // String representation of a boolean zero (only used by boolean arguments)
  zeroStringValue: string;
  // String representation of a boolean one (only used by boolean arguments)
  oneStringValue: string;
  // Minimum character count (only used by string arguments)
  minChars: number;
  // Maximum character count (only used by string arguments)
  maxChars: number;
  // True if the engineering type supports signed representation.
  // (only used by integer arguments)
  signed: boolean;
  // Minimum byte count (only used by binary arguments)
  minBytes: number;
  // Maximum character count (only used by binary arguments)
  maxBytes: number;
  // Length of each dimension (only used by array arguments)
  dimensions: ArgumentDimensionInfo[];
  // Type of array entries (only used by array arguments)
  elementType: ArgumentTypeInfo;
  // Name of the parameter type
  name: string;
}
interface ArgumentMemberInfo {
  name: string;
  shortDescription: string;
  longDescription: string;
  alias: NamedObjectId[];
  type: ArgumentTypeInfo;
  initialValue: string;
}
interface ArgumentDimensionInfo {
  // Use a fixed integer value. If set, no other options are applicable.
  // This value describes the length.
  fixedValue: string;  // String decimal
  // Use the value of the referenced parameter.
  // The value describes the zero-based ending index (length - 1)
  //
  // For a value ``v``, the dimension's length is determined
  // as: ``(v * slope) + intercept``.
  parameter: ParameterInfo;
  // Use the value of the referenced argument.
  // The value describes the zero-based ending index (length - 1)
  //
  // For a value ``v``, the dimension's length is determined
  // as: ``(v * slope) + intercept``.
  argument: string;
  // Scale the value obtained from a parameter or argument reference.
  slope: string;  // String decimal
  // Shift the value obtained from a parameter or argument reference.
  intercept: string;  // String decimal
}
interface OutputParameterInfo {
  parameter: ParameterInfo;
  outputName: string;
}
interface MathElement {
  // Type of element, either an operand kind or an operator.
  type: Type;
  // Operator symbol if type ``OPERATOR``.
  operator: string;
  // Constant if type ``VALUE_OPERAND``.
  value: number;
  // Parameter whose value is used if type ``PARAMETER``.
  parameter: ParameterInfo;
  // Parameter instance specifier
  parameterInstance: number;
}
interface ContainerInfo {
  name: string;
  qualifiedName: string;
  shortDescription: string;
  longDescription: string;
  alias: NamedObjectId[];
  maxInterval: string;  // String decimal
  sizeInBits: number;
  baseContainer: ContainerInfo;
  restrictionCriteria: ComparisonInfo[];
  restrictionCriteriaExpression: string;
  entry: SequenceEntryInfo[];
  usedBy: UsedByInfo;
  ancillaryData: {[key: string]: AncillaryDataInfo};
  archivePartition: boolean;
}
interface SequenceEntryInfo {
  locationInBits: number;
  referenceLocation: ReferenceLocationType;
  // For use in sequence containers
  container: ContainerInfo;
  parameter: ParameterInfo;
  // For use in command containers
  argument: ArgumentInfo;
  fixedValue: FixedValueInfo;
  repeat: RepeatInfo;
  indirectParameterRef: IndirectParameterRefInfo;
}
interface FixedValueInfo {
  name: string;
  hexValue: string;
  sizeInBits: number;
}
interface RepeatInfo {
  fixedCount: string;  // String decimal
  dynamicCount: ParameterInfo;
  bitsBetween: number;
}
interface IndirectParameterRefInfo {
  parameter: ParameterInfo;
  aliasNamespace: string;
}
enum Type {
  POLYNOMIAL = "POLYNOMIAL",
  SPLINE = "SPLINE",
  MATH_OPERATION = "MATH_OPERATION",
  JAVA_EXPRESSION = "JAVA_EXPRESSION",
  ALGORITHM = "ALGORITHM",
}
enum Type {
  BINARY = "BINARY",
  BOOLEAN = "BOOLEAN",
  FLOAT = "FLOAT",
  INTEGER = "INTEGER",
  STRING = "STRING",
}
enum AlarmLevelType {
  NORMAL = "NORMAL",
  WATCH = "WATCH",
  WARNING = "WARNING",
  DISTRESS = "DISTRESS",
  CRITICAL = "CRITICAL",
  SEVERE = "SEVERE",
}
enum AlarmLevelType {
  NORMAL = "NORMAL",
  WATCH = "WATCH",
  WARNING = "WARNING",
  DISTRESS = "DISTRESS",
  CRITICAL = "CRITICAL",
  SEVERE = "SEVERE",
}
enum DataSourceType {
  TELEMETERED = "TELEMETERED",
  DERIVED = "DERIVED",
  CONSTANT = "CONSTANT",
  LOCAL = "LOCAL",
  SYSTEM = "SYSTEM",
  COMMAND = "COMMAND",
  COMMAND_HISTORY = "COMMAND_HISTORY",
  EXTERNAL1 = "EXTERNAL1",
  EXTERNAL2 = "EXTERNAL2",
  EXTERNAL3 = "EXTERNAL3",
  GROUND = "GROUND",
}
enum Scope {
  GLOBAL = "GLOBAL",
  COMMAND_VERIFICATION = "COMMAND_VERIFICATION",
  CONTAINER_PROCESSING = "CONTAINER_PROCESSING",
}
enum Type {
  CUSTOM = "CUSTOM",
  MATH = "MATH",
}
enum Type {
  VALUE_OPERAND = "VALUE_OPERAND",
  THIS_PARAMETER_OPERAND = "THIS_PARAMETER_OPERAND",
  OPERATOR = "OPERATOR",
  PARAMETER = "PARAMETER",
}
enum ReferenceLocationType {
  CONTAINER_START = "CONTAINER_START",
  PREVIOUS_ENTRY = "PREVIOUS_ENTRY",
}
enum OperatorType {
  EQUAL_TO = "EQUAL_TO",
  NOT_EQUAL_TO = "NOT_EQUAL_TO",
  GREATER_THAN = "GREATER_THAN",
  GREATER_THAN_OR_EQUAL_TO = "GREATER_THAN_OR_EQUAL_TO",
  SMALLER_THAN = "SMALLER_THAN",
  SMALLER_THAN_OR_EQUAL_TO = "SMALLER_THAN_OR_EQUAL_TO",
}