Interface MarshallableEntry<K,​V>

  • public interface MarshallableEntry<K,​V>
    Defines an externally persisted entry. External stores that keep the data in serialised form should return an MarshalledEntry that contains the data in binary form (ByteBuffer) and unmarshall it lazily when getKey/Value/Metadata are invoked. This approach avoids unnecessary object (de)serialization e.g when the entries are fetched from the external store for the sole purpose of being sent over the wire to another requestor node.
    Ryan Emerson
    • Method Detail

      • getKeyBytes

        ByteBuffer getKeyBytes()
        Returns the key in serialized format.
      • getValueBytes

        ByteBuffer getValueBytes()
        Returns the value in serialize format.
      • getMetadataBytes

        ByteBuffer getMetadataBytes()
        null if there's no metadata associated with the object (e.g. expiry info, version..)
      • getKey

        K getKey()
        Returns the same key as getKeyBytes(), but unmarshalled.
      • getValue

        V getValue()
        Returns the same value as getKeyBytes(), but unmarshalled.
      • getMetadata

        Metadata getMetadata()
        might be null if there's no metadata associated with the object (e.g. expiry info, version..).
      • created

        long created()
      • lastUsed

        long lastUsed()
      • isExpired

        boolean isExpired​(long now)
      • expiryTime

        long expiryTime()
      • asMarshalledEntry

        default org.infinispan.marshall.core.MarshalledEntry<K,​V> asMarshalledEntry()
        This should not be used by users and will be removed in subsequent versions along with MarshalledEntry.
        A bridge method required to ensure backwards compatibility with old store implementations that rely on MarshalledEntry. It's not possible to simply create a static wrapper class around a MarshallableEntry as getMetadataBytes() is different from getMetadataBytes() and we require a Marshaller instance to generate said bytes.