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