Checkpoint Properties

You cannot write data into a checkpoint after it has been created, but ActiveSpaces does provide the ability to query or retrieve data contained in a checkpoint.

ActiveSpaces supports the following properties for checkpoints:
TIBDG_SESSION_PROPERTY_STRING_CHECKPOINT_NAME
The property is set so that a named checkpoint is used as the data source for the session's read operations (GET, Iterator, Queries, or Statements). Write operations (PUT, DELETE) do not support this property.
TIBDG_GRIDMETADATA_PROPERTY_STRING_CHECKPOINT_NAME
The property is set so that a named checkpoint is used when retrieving metadata for the data grid or tables.
TIBDG_STATEMENT_PROPERTY_STRING_CONSISTENCY
Set this property to TIBDG_STATEMENT_CONSISTENCY_SNAPSHOT when using checkpoints for reading data. Since a checkpoint is already globally consistent, you must not use global consistency when reading or querying with checkpoints.
See the API documentation on the following methods:
  • tibdgConnection_CreateSession
  • tibdgConnection_GetGridMetadata
  • tibdgSession_CreateStatement
  • tibdgTable_CreateIterator
  • tibdgTable_Get
Related concepts
Related tasks