| Interface | Description |
|---|---|
| IPList | |
| Progressable |
A facility for reporting progress.
|
| Tool |
A tool interface that supports handling of generic command-line options.
|
| Class | Description |
|---|---|
| ApplicationClassLoader |
A
URLClassLoader for application isolation. |
| DurationInfo |
A duration with logging of final state at info or debug
in the
close() call. |
| OperationDuration |
Little duration counter.
|
| PureJavaCrc32 |
A pure-java implementation of the CRC32 checksum that uses
the same polynomial as the built-in native CRC32.
|
| PureJavaCrc32C |
A pure-java implementation of the CRC32 checksum that uses
the CRC32-C polynomial, the same polynomial used by iSCSI
and implemented on many Intel chipsets supporting SSE4.2.
|
| ReflectionUtils |
General reflection utils
|
| Shell |
A base class for running a Shell command.
|
| ShutdownHookManager |
The
ShutdownHookManager enables running shutdownHook
in a deterministic order, higher priority first. |
| StringInterner |
Provides string interning utility methods.
|
| SysInfo |
Plugin to calculate resource information on the system.
|
| ToolRunner |
A utility to help run
Tools. |
| VersionInfo |
This class returns build information about Hadoop components.
|
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