Send feedback
Class AbstractMemoryDataStore<V> (1.44.2)
Stay organized with collections
Save and categorize content based on your preferences.
Version 1.44.2 keyboard_arrow_down
public class AbstractMemoryDataStore<V> extends AbstractDataStore<V>
Abstract, thread-safe, in-memory implementation of a data store factory.
Type Parameter
Name Description
V
Constructors
AbstractMemoryDataStore(DataStoreFactory dataStoreFactory, String id)
protected AbstractMemoryDataStore(DataStoreFactory dataStoreFactory, String id)
Fields
keyValueMap
protected HashMap<String,byte[]> keyValueMap
Data store map from the key to the value.
Methods
clear()
public final DataStore<V> clear()
containsKey(String key)
public boolean containsKey(String key)
Returns whether the store contains the given key.
Default implementation is to call #get(String) and check if it is null.
Parameter
Name Description
keyString
Overrides
containsValue(V value)
public boolean containsValue(V value)
Returns whether the store contains the given value.
Default implementation is to call Collection#contains(Object) on #values() .
Parameter
Name Description
valueV
Overrides
delete(String key)
public DataStore<V> delete(String key)
Parameter
Name Description
keyString
get(String key)
public final V get(String key)
Parameter
Name Description
keyString
Returns
Type Description
V
isEmpty()
Returns whether there are any stored keys.
Default implementation is to check if #size() is 0.
Overrides
keySet()
public final Set<String> keySet()
save()
set(String key, V value)
public final DataStore<V> set(String key, V value)
Parameters
Name Description
keyString
valueV
size()
Returns the number of stored keys.
Default implementation is to call Set#size() on #keySet() .
Returns
Type Description
int
Overrides
toString()
Returns
Type Description
String
Overrides
values()
public final Collection<V> values()
Send feedback
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License , and code samples are licensed under the Apache 2.0 License . For details, see the Google Developers Site Policies . Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2024-10-30 UTC.
Need to tell us more?
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-10-30 UTC."],[],[]]
