Interface Summary Interface Description BatchDeleterImplementations of BatchDeleter support efficient deletion of ranges in accumulo. BatchScannerIn exchange for possibly returning scanned entries out of order, BatchScanner implementations may scan an Accumulo table more efficiently by Looking up multiple ranges in parallel. BatchWriterSend Mutations to a single Table in Accumulo. ConditionalWriterConditionalWriter provides the ability to do efficient, atomic read-modify-write operations on rows. InstanceThis class represents the information a client needs to know to connect to an instance of accumulo. IsolatedScanner.RowBuffer IsolatedScanner.RowBufferFactory MultiTableBatchWriterThis class enables efficient batch writing to multiple tables. ScannerScans a table over a given range. ScannerBaseThis class hosts configuration methods that are shared between different types of scanners.
Class Summary Class Description BatchWriterConfigThis object holds configuration settings used to instantiate a
ClientConfigurationContains a list of property keys recognized by the Accumulo client and convenience methods for setting them. ClientSideIteratorScannerA scanner that instantiates iterators on the client side instead of on the tablet server. ConditionalWriter.Result ConditionalWriterConfig ConnectorConnector connects to an Accumulo instance and allows the user to request readers and writers for the instance as well as various objects that permit administrative operations. IsolatedScannerA scanner that presents a row isolated view of an accumulo table. IsolatedScanner.MemoryRowBuffer IsolatedScanner.MemoryRowBufferFactory IteratorSettingConfigure an iterator for minc, majc, and/or scan. IteratorSetting.ColumnA convenience class for passing column family and column qualifiers to iterator configuration methods. RowIteratorGroup Key/Value pairs into Iterators over rows. ZooKeeperInstanceAn implementation of instance that looks in zookeeper to find information needed to connect to an instance of accumulo.
Exception Summary Exception Description AccumuloExceptionA generic Accumulo Exception for general accumulo failures. AccumuloSecurityExceptionAn Accumulo Exception for security violations, authentication failures, authorization failures, etc. MutationsRejectedExceptionCommunicate the failed mutations of a BatchWriter back to the client. NamespaceExistsExceptionThrown when the namespace specified already exists, and it was expected that it didn't NamespaceNotEmptyExceptionThrown when the namespace specified contains tables NamespaceNotFoundExceptionThrown when the namespace specified doesn't exist when it was expected to SampleNotPresentExceptionException thrown when a table does not have sampling configured or when sampling is configured but it differs from what was requested. TableDeletedExceptionThis exception is thrown if a table is deleted after an operation starts. TableExistsExceptionThrown when the table specified already exists, and it was expected that it didn't TableNotFoundExceptionThrown when the table specified doesn't exist when it was expected to TableOfflineException TimedOutException