Class AbstractDataStore<V> (1.45.0)

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`