com.orientechnologies.orient.core.storage.impl.local.paginated.atomicoperations

Interface OAtomicOperationMetadata<T>

Type Parameters:

T - Type of atomic operation metadata.

All Superinterfaces:

Serializable

All Known Implementing Classes:

ORecordOperationMetadata

public interface OAtomicOperationMetadata<T>
extends Serializable

Basic interface for any kind of metadata which may be stored as part of atomic operation.

All metadata are associated with key, if metadata with the same key is put inside of atomic operation previous instance of metadata will be overwritten.

To add metadata inside of atomic operation use OAtomicOperationBinaryTracking.addMetadata(com.orientechnologies.orient.core.storage.impl.local.paginated.atomicoperations.OAtomicOperationMetadata).

To read metadata from atomic operation use OAtomicOperationBinaryTracking.getMetadata(java.lang.String)

If you wish to read metadata stored inside of atomic operation you may read them from OAtomicUnitEndRecord.getAtomicOperationMetadata()

If you add new metadata implementation, you have to add custom serialization method in OAtomicUnitEndRecord class.

Method Summary

Modifier and Type	Method and Description
String	getKey()
T	getValue()

Method Detail

getKey

String getKey()

Returns:

Key associated with given metadata

getValue

T getValue()

Returns:

Metadata value.