com.google.cloud.hadoop.util

Class HadoopVersionInfo

java.lang.Object

com.google.cloud.hadoop.util.HadoopVersionInfo

public class HadoopVersionInfo
extends java.lang.Object

Provides information regarding the currently loaded Hadoop version.

Method Summary

Modifier and Type	Method and Description
static HadoopVersionInfo	getInstance() Returns a HadoopVersionInfo that uses a version string contained in VersionInfo.getVersion().
com.google.common.base.Optional<java.lang.Integer>	getMajorVersion() Get the major part of the version.
com.google.common.base.Optional<java.lang.Integer>	getMinorVersion() Get the minor part of the version
com.google.common.base.Optional<java.lang.Integer>	getSubminorVersion() Get the subminor part of the version
boolean	isEqualTo(int major, int minor) Determine if the object is equal to the given major / minor versions
boolean	isGreaterThan(int major, int minor) Determine if this object is greater than the passed version number.
boolean	isLessThan(int major, int minor) Determine if this object is less than the passed version number.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static HadoopVersionInfo getInstance()

Returns a HadoopVersionInfo that uses a version string contained in VersionInfo.getVersion().

getMajorVersion

public com.google.common.base.Optional<java.lang.Integer> getMajorVersion()

Get the major part of the version.

getMinorVersion

public com.google.common.base.Optional<java.lang.Integer> getMinorVersion()

Get the minor part of the version

getSubminorVersion

public com.google.common.base.Optional<java.lang.Integer> getSubminorVersion()

Get the subminor part of the version

isGreaterThan

public boolean isGreaterThan(int major,
                             int minor)

Determine if this object is greater than the passed version number. In order for a component to be included in the calculation it must be present in the version string.

Parameters:

major - The major number to compare against

minor - The minor number to compare against

Returns:

True if the version currently running is greater than the given major and minor version numbers.

isLessThan

public boolean isLessThan(int major,
                          int minor)

Determine if this object is less than the passed version number. In order for a component to be included in the calculation it must be present in the version string.

Parameters:

major - The major number to compare against

minor - The minor number to compare against

Returns:

True if the version currently running is less than the given major and minor version numbers.

isEqualTo

public boolean isEqualTo(int major,
                         int minor)

Determine if the object is equal to the given major / minor versions

Parameters:

major - The major version number

minor - The minor version number

Returns:

True if the version currently running matches both the major and minor version numbers.