org.infinispan.schematic.internal
Class SchematicEntryLookup

java.lang.Object
  org.infinispan.schematic.internal.SchematicEntryLookup

public class SchematicEntryLookup
extends Object

A helper that locates or safely constructs and registers schematic values with a given cache. This should be the only way SchematicEntrys are created/retrieved, to prevent concurrent creation, registration and possibly overwriting of such a value within the cache.

Since:

5.1

See Also:

SchematicEntry

Constructor Summary

SchematicEntryLookup()

Method Summary

static SchematicEntry	getReadOnlySchematicValue(org.infinispan.Cache<String,SchematicEntry> cache, String key) Retrieves an atomic map from a given cache, stored under a given key, for reading only.
static SchematicEntry	getSchematicValue(org.infinispan.Cache<String,SchematicEntry> cache, String key) Retrieves a schematic value from the given cache, stored under the given key.
static SchematicEntry	getSchematicValue(org.infinispan.Cache<String,SchematicEntry> cache, String key, boolean createIfAbsent) Retrieves a schematic value from the given cache, stored under the given key.
static SchematicEntry	getSchematicValue(org.infinispan.Cache<String,SchematicEntry> cache, String key, org.infinispan.context.FlagContainer flagContainer) Retrieves a schematic value from the given cache, stored under the given key.
static void	removeSchematicValue(org.infinispan.Cache<String,SchematicEntry> cache, String key) Removes the atomic map associated with the given key from the underlying cache.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SchematicEntryLookup

public SchematicEntryLookup()

Method Detail

getSchematicValue

public static SchematicEntry getSchematicValue(org.infinispan.Cache<String,SchematicEntry> cache,
                                               String key)

Retrieves a schematic value from the given cache, stored under the given key. If a schematic value did not exist, one is created and registered in an atomic fashion.

Parameters:

cache - underlying cache

key - key under which the schematic value exists

Returns:

an AtomicMap

getSchematicValue

public static SchematicEntry getSchematicValue(org.infinispan.Cache<String,SchematicEntry> cache,
                                               String key,
                                               boolean createIfAbsent)

Retrieves a schematic value from the given cache, stored under the given key.

Parameters:

cache - underlying cache

key - key under which the atomic map exists

createIfAbsent - if true, a new atomic map is created if one doesn't exist; otherwise null is returned if the map didn't exist.

Returns:

an AtomicMap, or null if one did not exist.

getSchematicValue

public static SchematicEntry getSchematicValue(org.infinispan.Cache<String,SchematicEntry> cache,
                                               String key,
                                               org.infinispan.context.FlagContainer flagContainer)

Retrieves a schematic value from the given cache, stored under the given key.

Parameters:

cache - underlying cache

key - key under which the atomic map exists

flagContainer - a container to pass in per-invocation flags to the underlying cache. May be null if no flags are used.

Returns:

an AtomicMap, or null if one did not exist.

getReadOnlySchematicValue

public static SchematicEntry getReadOnlySchematicValue(org.infinispan.Cache<String,SchematicEntry> cache,
                                                       String key)

Retrieves an atomic map from a given cache, stored under a given key, for reading only. The atomic map returned will not support updates, and if the map did not in fact exist, an empty map is returned.

Parameters:

cache - underlying cache

key - key under which the atomic map exists

Returns:

an immutable, read-only map

removeSchematicValue

public static void removeSchematicValue(org.infinispan.Cache<String,SchematicEntry> cache,
                                        String key)

Removes the atomic map associated with the given key from the underlying cache.

Parameters:

cache - underlying cache

key - key under which the atomic map exists