public class GemfireMetadataStore extends Object implements ListenableMetadataStore
ListenableMetadataStore.
Use this MetadataStore
to achieve meta-data persistence shared across application instances and
restarts.| Constructor and Description |
|---|
GemfireMetadataStore(org.apache.geode.cache.Cache cache) |
GemfireMetadataStore(org.apache.geode.cache.Region<String,String> region) |
| Modifier and Type | Method and Description |
|---|---|
void |
addListener(MetadataStoreListener listener)
Registers a listener with the metadata store
|
String |
get(String key)
Reads a value for the given key from this MetadataStore.
|
void |
put(String key,
String value)
Writes a key value pair to this MetadataStore.
|
String |
putIfAbsent(String key,
String value)
Atomically insert the key into the store.
|
String |
remove(String key)
Remove a value for the given key from this MetadataStore.
|
void |
removeListener(MetadataStoreListener listener)
Unregisters a listener
|
boolean |
replace(String key,
String oldValue,
String newValue)
Atomically replace the value for the key in the store if the old
value matches the oldValue argument.
|
public static final String KEY
public GemfireMetadataStore(org.apache.geode.cache.Cache cache)
public void put(String key, String value)
MetadataStoreput in interface MetadataStorekey - The key.value - The value.public String putIfAbsent(String key, String value)
ConcurrentMetadataStoreputIfAbsent in interface ConcurrentMetadataStorekey - The key.value - The value.public boolean replace(String key, String oldValue, String newValue)
ConcurrentMetadataStorereplace in interface ConcurrentMetadataStorekey - The key.oldValue - The old value.newValue - The new value.public String get(String key)
MetadataStoreget in interface MetadataStorekey - The key.public String remove(String key)
MetadataStoreremove in interface MetadataStorekey - The key.public void addListener(MetadataStoreListener listener)
ListenableMetadataStoreaddListener in interface ListenableMetadataStorelistener - the callback to be registeredpublic void removeListener(MetadataStoreListener listener)
ListenableMetadataStoreremoveListener in interface ListenableMetadataStorelistener - the callback to be unregistered