| class | description |
| AggregationResult | Stores the result of an aggregation operation |
| Container | Provides management functions for sets of row having same type |
| QueryAnalysisEntry | Represents one of information entries composing a query plan and the results of analyzing a query operation. |
| GSException | Represents the exception for GridDB |
| PartitionController | Controller for acquiring and processing the partition status |
| Query | Provides the functions of holding the information about a query related to a specific Container, specifying the options for fetching and retrieving the result |
| RowKeyPredicate | Represents the condition that a row key satisfies |
| RowSet | Manages a set of Rows obtained by a query |
| Store | Provides functions to manipulate the entire data managed in one GridDB system |
| StoreFactory | Manages a Store instance |
| ContainerInfo | Represents the information about a Container |
| ExpirationInfo | Represents the information about a expiration |
| TimestampUtils | Provides the utilities for manipulating time data |