Package org.apache.drill.exec.store

Interface Summary

Interface	Description
DistributedStorageEngine
PartitionExplorer	Exposes partition information to UDFs to allow queries to limit reading partitions dynamically.
RecordReader
RecordWriter	RecordWriter interface.
SchemaConfig.SchemaConfigInfoProvider	Interface to implement to provide required info for SchemaConfig
SchemaFactory	StoragePlugins implements this interface to register the schemas they provide.
SchemaPartitionExplorer	Exposes partition information for a particular schema.
StoragePlugin	Interface for all implementations of the storage plugins.
StoragePluginRegistry

Class Summary

Class	Description
AbstractRecordReader
AbstractRecordWriter
AbstractSchema
AbstractStoragePlugin	Abstract class for StorePlugin implementations.
ClassPathFileSystem
ColumnExplorer
EventBasedRecordWriter	Reads records from the RecordValueAccessor and writes into RecordWriter.
EventBasedRecordWriter.FieldConverter
JSONOutputRecordWriter	Abstract implementation of RecordWriter interface which exposes interface: #writeHeader(List) #addField(int,String) to output the data in string format instead of implementing addField for each type holder.
LocalSyncableFileSystem	This class provides a Syncable local extension of the hadoop FileSystem
NamedStoragePluginConfig
ParquetOutputRecordWriter	Abstract implementation of RecordWriter interface which exposes interface: #writeHeader(List) #addField(int,String) to output the data in string format instead of implementing addField for each type holder.
PartitionExplorerImpl
RecordDataType	RecordDataType defines names and data types of columns in a static drill table.
ResourceInputStream
SchemaConfig	Contains information needed by AbstractSchema implementations.
SchemaConfig.Builder
SchemaTreeProvider	Class which creates new schema trees.
StoragePluginOptimizerRule
StoragePluginRegistryImpl
StorageStrategy	Contains list of parameters that will be used to store path / files on file system.
StringOutputRecordWriter	Abstract implementation of RecordWriter interface which exposes interface: #writeHeader(List) StringOutputRecordWriter.addField(int,String) to output the data in string format instead of implementing addField for each type holder.
SubSchemaWrapper
TimedRunnable<V>	Class used to allow parallel executions of tasks in a simplified way.

Enum Summary

Enum	Description
ColumnExplorer.ImplicitFileColumns	Columns that give information from where file data comes from.

Exception Summary

Exception	Description
BatchExceededException
PartitionNotFoundException