Class AbstractDataStore<V> (1.41.8)

public abstract class AbstractDataStore<V> implements DataStore<V>

Abstract data store implementation.

Inheritance

java.lang.Object > AbstractDataStore<V>

Implements

com.google.api.client.util.store.DataStore<V>

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Type Parameter

Name	Description
V

Constructors

AbstractDataStore(DataStoreFactory dataStoreFactory, String id)

protected AbstractDataStore(DataStoreFactory dataStoreFactory, String id)

Parameters

Name	Description
dataStoreFactory	`DataStoreFactory` data store factory
id	`String` data store ID

Methods

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
key	`String`

Returns

Type	Description
boolean

Exceptions

Type	Description
IOException

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
value	`V`

Returns

Type	Description
boolean

Exceptions

Type	Description
IOException

getDataStoreFactory()

public DataStoreFactory getDataStoreFactory()

Returns the data store factory.

Overriding is only supported for the purpose of calling the super implementation and changing the return type, but nothing else.

Returns

Type	Description
DataStoreFactory

getId()

public final String getId()

Returns the data store ID.

Returns

Type	Description
String

isEmpty()

public boolean isEmpty()

Returns whether there are any stored keys.

Default implementation is to check if #size() is 0.

Returns

Type	Description
boolean

Exceptions

Type	Description
IOException

size()

public int size()

Returns the number of stored keys.

Default implementation is to call Set#size() on #keySet().

Returns

Type	Description
int

Exceptions

Type	Description
IOException