public abstract class AbstractDataStore<V> implements DataStore<V>
Abstract data store implementation.
Implements
com.google.api.client.util.store.DataStore<V>Type Parameter |
|
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Name | Description |
V |
Constructors
AbstractDataStore(DataStoreFactory dataStoreFactory, String id)
protected AbstractDataStore(DataStoreFactory dataStoreFactory, String id)
Parameters | |
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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 | |
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Name | Description |
key |
String |
Returns | |
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Type | Description |
boolean |
Exceptions | |
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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 | |
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Name | Description |
value |
V |
Returns | |
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Type | Description |
boolean |
Exceptions | |
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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 | |
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Type | Description |
DataStoreFactory |
getId()
public final String getId()
Returns the data store ID.
Returns | |
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Type | Description |
String |
isEmpty()
public boolean isEmpty()
Returns | |
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Type | Description |
boolean |
Exceptions | |
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Type | Description |
IOException |
size()
public int size()
Returns the number of stored keys.
Default implementation is to call Set#size() on #keySet().
Returns | |
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Type | Description |
int |
Exceptions | |
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Type | Description |
IOException |