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See:
Description
| Interface Summary | |
|---|---|
| Dataset<E> | A logical representation of a set of data entities. |
| DatasetReader<E> | A stream-oriented dataset reader. |
| DatasetRepository |
A logical repository (storage system) of Datasets. |
| DatasetWriter<E> | A stream-oriented dataset writer. |
| RandomAccessDataset<E> |
A Dataset that supports random access operations on entities. |
| RandomAccessDatasetRepository |
A logical repository (storage system) of RandomAccessDatasets. |
| RefinableView<E> | A RefinableView specifies a subset of a Dataset by one or
more logical constraints. |
| View<E> | A View is a subset of a Dataset. |
| Class Summary | |
|---|---|
| ColumnMapping | A descriptor for an entity's column mappings, which defines how an entity maps to a columnar store. |
| ColumnMapping.Builder | A fluent builder to aid in constructing a ColumnMapping. |
| DatasetDescriptor |
The structural definition of a Dataset. |
| DatasetDescriptor.Builder | A fluent builder to aid in the construction of DatasetDescriptors. |
| DatasetRepositories | Convenience methods for working with DatasetRepository instances. |
| Datasets | Convenience methods for working with Dataset instances. |
| FieldMapping | Represents how to store a Schema field. |
| Format |
The data format used for encoding the data in a Dataset when stored
in a DatasetRepository. |
| Formats |
Contains constant definitions for the standard Format instances
supported by the library. |
| Key |
A key for retrieving entities from a RandomAccessDataset. |
| Key.Builder | A fluent builder to aid in the construction of Key objects. |
| PartitionKey |
A key for retrieving partitions from a Dataset. |
| PartitionStrategy | The strategy used to determine how a dataset is partitioned. |
| PartitionStrategy.Builder | A fluent builder to aid in the construction of PartitionStrategys. |
| Enum Summary | |
|---|---|
| FieldMapping.MappingType | The supported Mapping Types, which control how an entity field maps to columns in an HBase table. |
| Exception Summary | |
|---|---|
| ConcurrentSchemaModificationException | Exception thrown when a schema modification collides with another client trying to modify the schema of the same dataset. |
| DatasetException | Exception thrown for dataset-related failures. |
| DatasetExistsException | Exception thrown when trying to create a dataset that already exists. |
| DatasetIOException | Exception thrown for dataset IO-related failures. |
| DatasetNotFoundException | Exception thrown to indicate that a dataset was not found. |
| DatasetReaderException | Exception thrown for dataset reader-related failures. |
| DatasetRepositoryException | Exception thrown for dataset repository-related failures. |
| DatasetWriterException | Exception thrown for dataset writer-related failures. |
| IncompatibleSchemaException | Exception thrown when a schema update is not compatible with the previous schema (or schemas) or with existing datasets (if shared storage is used, for example). |
| SchemaNotFoundException | Exception thrown to indicate that there is a problem finding a particular version of a schema. |
| SerializationException | Exception thrown when an object cannot be serialized to, or deserialized from, its binary representation. |
| UnknownFormatException | Exception thrown when a Dataset is in an unknown format. |
| ValidationException | Exception thrown to indicate that there was a problem parsing or validating a schema, partition strategy, or column mapping. |
Provides interfaces and classes for reading and writing datasets.
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