Package org.apache.accumulo.core.client.rfile

Class RFile

java.lang.Object

org.apache.accumulo.core.client.rfile.RFile

public class RFile
extends Object

RFile is Accumulo's internal storage format for Key Value pairs. This class is a Factory that enables creating a Scanner for reading and a RFileWriter for writing Rfiles.

The Scanner created by this class makes it easy to experiment with real data from a live system on a developers workstation. Also the Scanner can be used to write tools to analyze Accumulo's raw data.

Since:

1.8.0

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	RFile.InputArguments	This is an intermediate interface in a larger builder pattern.
static interface	RFile.OutputArguments	This is an intermediate interface in a larger builder pattern.
static interface	RFile.ScannerFSOptions	This is an intermediate interface in a larger builder pattern.
static interface	RFile.ScannerOptions	This is an intermediate interface in a larger builder pattern.
static interface	RFile.SummaryFSOptions	This is an intermediate interface in a larger builder pattern.
static interface	RFile.SummaryInputArguments	This is an intermediate interface in a larger builder pattern.
static interface	RFile.SummaryOptions	This is an intermediate interface in a large builder pattern.
static interface	RFile.WriterFSOptions	This is an intermediate interface in a larger builder pattern.
static interface	RFile.WriterOptions	This is an intermediate interface in a larger builder pattern.

Constructor Summary

Constructors

Constructor	Description
RFile()

Method Summary

Modifier and Type	Method	Description
static RFile.InputArguments	newScanner()	Entry point for building a new Scanner over one or more RFiles.
static RFile.OutputArguments	newWriter()	Entry point for creating a new RFile writer.
static RFile.SummaryInputArguments	summaries()	Entry point for reading summary data from RFiles.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

RFile

public RFile()

Method Details

newScanner

public static RFile.InputArguments newScanner()

Entry point for building a new Scanner over one or more RFiles.

summaries

public static RFile.SummaryInputArguments summaries()

Entry point for reading summary data from RFiles.

Since:

2.0.0

newWriter

public static RFile.OutputArguments newWriter()

Entry point for creating a new RFile writer.