KeyValueStorage class abstract

Interface for key-value storage operations, allowing storage and retrieval of various data types. Referenced from StorageManager.

Implemented types
Implementers

Constructors

KeyValueStorage()

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

clear() → void
Removes all entries from the storage.
contains(String key) → bool
Checks whether the key exists in the storage. key Key to check. Returns true if a value is stored under the key (regardless of type).
getBool(String key, bool defaultValue) → bool
Gets a boolean value. Returns defaultValue if the key is missing or the stored type is not bool. key Lookup key. defaultValue Value to return when not found or type mismatch. Returns Stored bool or defaultValue.
getDouble(String key, double defaultValue) → double
Gets a 64-bit floating-point value. Returns defaultValue if the key is missing or the stored type is not double. key Lookup key. defaultValue Value to return when not found or type mismatch. Returns Stored double or defaultValue.
getFloat(String key, double defaultValue) → double
Gets a 32-bit floating-point value. Returns defaultValue if the key is missing or the stored type is not float. key Lookup key. defaultValue Value to return when not found or type mismatch. Returns Stored float or defaultValue.
getInt(String key, int defaultValue) → int
Gets a 32-bit integer value. Returns defaultValue if the key is missing or the stored type is not int. key Lookup key. defaultValue Value to return when not found or type mismatch. Returns Stored int32 or defaultValue.
getKeys() → List<String>
Returns all keys currently stored. Returns List of keys. Order is implementation-defined (not guaranteed).
getLong(String key, int defaultValue) → int
Gets a 64-bit integer value. Returns defaultValue if the key is missing or the stored type is not long. key Lookup key. defaultValue Value to return when not found or type mismatch. Returns Stored int64 or defaultValue.
getString(String key, String defaultValue) → String
Gets a string value. Returns defaultValue if the key is missing or the stored type is not string. key Lookup key. defaultValue Value to return when not found or type mismatch. Returns Stored string or defaultValue.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
putBool(String key, bool value) → void
Stores a boolean value under the key, replacing any existing value. key Key to set. value Value to store.
putDouble(String key, double value) → void
Stores a 64-bit floating-point value under the key, replacing any existing value. key Key to set. value Value to store.
putFloat(String key, double value) → void
Stores a 32-bit floating-point value under the key, replacing any existing value. key Key to set. value Value to store.
putInt(String key, int value) → void
Stores a 32-bit integer value under the key, replacing any existing value. key Key to set. value Value to store.
putLong(String key, int value) → void
Stores a 64-bit integer value under the key, replacing any existing value. key Key to set. value Value to store.
putString(String key, String value) → void
Stores a string value under the key, replacing any existing value. key Key to set. value Value to store.
remove(String key) → void
Removes a value by key. No-op if the key does not exist. key Key to remove.
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited