BaseMeta class abstract

User/Group Meta data

This class is used to generate entity meta

 data format: {
     "type"        : i2s(1),         // algorithm version
     "key"         : "{public key}", // PK = secp256k1(SK);
     "seed"        : "moKy",         // user/group name
     "fingerprint" : "..."           // CT = sign(seed, SK);
 }

 algorithm:
     fingerprint = sign(seed, SK);

abstract method: - Address generateAddress(int? network);

Inheritance
Implemented types

Constructors

BaseMeta([Mapping? dict])
BaseMeta.fromType(String type, VerifyKey key, {String? seed, TransportableData? fingerprint})

Properties

entries → Iterable<MapEntry<String, dynamic>>
The map entries of this Map.
no setterinherited
fingerprint → TransportableData?
Fingerprint to verify ID and public key
no setteroverride
hashCode → int
The hash code for this object.
no setterinherited
hasSeed → bool
no setter
isEmpty → bool
Whether there is no key/value pair in the map.
no setterinherited
isNotEmpty → bool
Whether there is at least one key/value pair in the map.
no setterinherited
isValid → bool
Validates the integrity of this metadata.
no setteroverride
keys → Iterable<String>
The keys of this Map.
no setterinherited
length → int
The number of key/value pairs in the map.
no setterinherited
publicKey → VerifyKey
Public key (used for signature)
no setteroverride
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
seed → String?
Seed to generate fingerprint
no setteroverride
type → String
Meta algorithm version
no setteroverride
values → Iterable
The values of this Map.
no setterinherited

Methods

addAll(Map<String, dynamic> other) → void
Adds all key/value pairs of other to this map.
inherited
addEntries(Iterable<MapEntry<String, dynamic>> newEntries) → void
Adds all key/value pairs of newEntries to this map.
inherited
cast<RK, RV>() → Map<RK, RV>
Map<String, dynamic>
inherited
checkValid() → bool
clear() → void
Removes all entries from the map.
inherited
containsKey(Object? key) → bool
Whether this map contains the given key.
inherited
containsValue(Object? value) → bool
Whether this map contains the given value.
inherited
copyMap([bool deepCopy = false]) → Map<String, dynamic>
Creates a copy of the internal map.
inherited
forEach(void action(String key, dynamic value)) → void
Applies action to each key/value pair of the map.
inherited
generateAddress(int? network) → Address
Generates an Address from this metadata for the specified network.
inherited
getBool(String key, [bool? defaultValue]) → bool?
inherited
getDateTime(String key, [DateTime? defaultValue]) → DateTime?
inherited
getDouble(String key, [double? defaultValue]) → double?
inherited
getInt(String key, [int? defaultValue]) → int?
inherited
getString(String key, [String? defaultValue]) → String?
Gets a string value for the given key.
inherited
map<K2, V2>(MapEntry<K2, V2> convert(String key, dynamic value)) → Map<K2, V2>
Returns a new map where all entries of this map are transformed by the given convert function.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
putIfAbsent(String key, dynamic ifAbsent()) → dynamic
Look up the value of key, or add a new entry if it isn't there.
inherited
remove(Object? key) → dynamic
Removes key and its associated value, if present, from the map.
inherited
removeWhere(bool test(String key, dynamic value)) → void
Removes all entries of this map that satisfy the given test.
inherited
setDateTime(String key, DateTime? time) → void
inherited
setMap(String key, Mapper? mapper) → void
inherited
setString(String key, Stringer? stringer) → void
inherited
toMap() → MutableMapping
Returns the internal map as a Map.
inherited
toString() → String
A string representation of this object.
inherited
update(String key, dynamic update(dynamic value), {dynamic ifAbsent()?}) → dynamic
Updates the value for the provided key.
inherited
updateAll(dynamic update(String key, dynamic value)) → void
Updates all values.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited
operator [](Object? key) → dynamic
The value for the given key, or null if key is not in the map.
inherited
operator []=(String key, dynamic value) → void
Associates the key with the given value.
inherited