com.amazonaws.services.elasticmapreduce.model

Class Application

java.lang.Object

com.amazonaws.services.elasticmapreduce.model.Application

All Implemented Interfaces:

Serializable, Cloneable

public class Application
extends Object
implements Serializable, Cloneable

An application is any Amazon or third-party software that you can add to the cluster. This structure contains a list of strings that indicates the software to use with the cluster and accepts a user argument list. Amazon EMR accepts and forwards the argument list to the corresponding installation script as bootstrap action argument. For more information, see Launch a Job Flow on the MapR Distribution for Hadoop . Currently supported values are:

• "mapr-m3" - launch the job flow using MapR M3 Edition.
• "mapr-m5" - launch the job flow using MapR M5 Edition.
• "mapr" with the user arguments specifying "--edition,m3" or "--edition,m5" - launch the job flow using MapR M3 or M5 Edition, respectively.

NOTE: In Amazon EMR releases 4.0 and greater, the only accepted parameter is the application name. To pass arguments to applications, you supply a configuration for each application.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Application()

Method Summary

Methods

Modifier and Type	Method and Description
Application	addAdditionalInfoEntry(String key, String value) This option is for advanced users only.
Application	clearAdditionalInfoEntries() Removes all the entries added into AdditionalInfo.
Application	clone()
boolean	equals(Object obj)
Map<String,String>	getAdditionalInfo() This option is for advanced users only.
List<String>	getArgs() Arguments for Amazon EMR to pass to the application.
String	getName() The name of the application.
String	getVersion() The version of the application.
int	hashCode()
void	setAdditionalInfo(Map<String,String> additionalInfo) This option is for advanced users only.
void	setArgs(Collection<String> args) Arguments for Amazon EMR to pass to the application.
void	setName(String name) The name of the application.
void	setVersion(String version) The version of the application.
String	toString() Returns a string representation of this object; useful for testing and debugging.
Application	withAdditionalInfo(Map<String,String> additionalInfo) This option is for advanced users only.
Application	withArgs(Collection<String> args) Arguments for Amazon EMR to pass to the application.
Application	withArgs(String... args) Arguments for Amazon EMR to pass to the application.
Application	withName(String name) The name of the application.
Application	withVersion(String version) The version of the application.

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Application

public Application()

Method Detail

getName

public String getName()

The name of the application.

Returns:

The name of the application.

setName

public void setName(String name)

The name of the application.

Parameters:

name - The name of the application.

withName

public Application withName(String name)

The name of the application.

Returns a reference to this object so that method calls can be chained together.

Parameters:

name - The name of the application.

Returns:

A reference to this updated object so that method calls can be chained together.

getVersion

public String getVersion()

The version of the application.

Returns:

The version of the application.

setVersion

public void setVersion(String version)

The version of the application.

Parameters:

version - The version of the application.

withVersion

public Application withVersion(String version)

The version of the application.

Returns a reference to this object so that method calls can be chained together.

Parameters:

version - The version of the application.

Returns:

A reference to this updated object so that method calls can be chained together.

getArgs

public List<String> getArgs()

Arguments for Amazon EMR to pass to the application.

Returns:

Arguments for Amazon EMR to pass to the application.

setArgs

public void setArgs(Collection<String> args)

Arguments for Amazon EMR to pass to the application.

Parameters:

args - Arguments for Amazon EMR to pass to the application.

withArgs

public Application withArgs(String... args)

Arguments for Amazon EMR to pass to the application.

NOTE: This method appends the values to the existing list (if any). Use setArgs(java.util.Collection) or withArgs(java.util.Collection) if you want to override the existing values.

Returns a reference to this object so that method calls can be chained together.

Parameters:

args - Arguments for Amazon EMR to pass to the application.

Returns:

A reference to this updated object so that method calls can be chained together.

withArgs

public Application withArgs(Collection<String> args)

Arguments for Amazon EMR to pass to the application.

Returns a reference to this object so that method calls can be chained together.

Parameters:

args - Arguments for Amazon EMR to pass to the application.

Returns:

A reference to this updated object so that method calls can be chained together.

getAdditionalInfo

public Map<String,String> getAdditionalInfo()

This option is for advanced users only. This is meta information about third-party applications that third-party vendors use for testing purposes.

Returns:

This option is for advanced users only. This is meta information about third-party applications that third-party vendors use for testing purposes.

setAdditionalInfo

public void setAdditionalInfo(Map<String,String> additionalInfo)

This option is for advanced users only. This is meta information about third-party applications that third-party vendors use for testing purposes.

Parameters:

additionalInfo - This option is for advanced users only. This is meta information about third-party applications that third-party vendors use for testing purposes.

withAdditionalInfo

public Application withAdditionalInfo(Map<String,String> additionalInfo)

This option is for advanced users only. This is meta information about third-party applications that third-party vendors use for testing purposes.

Returns a reference to this object so that method calls can be chained together.

Parameters:

additionalInfo - This option is for advanced users only. This is meta information about third-party applications that third-party vendors use for testing purposes.

Returns:

A reference to this updated object so that method calls can be chained together.

addAdditionalInfoEntry

public Application addAdditionalInfoEntry(String key,
                                 String value)

This option is for advanced users only. This is meta information about third-party applications that third-party vendors use for testing purposes.

The method adds a new key-value pair into AdditionalInfo parameter, and returns a reference to this object so that method calls can be chained together.

Parameters:

key - The key of the entry to be added into AdditionalInfo.

value - The corresponding value of the entry to be added into AdditionalInfo.

clearAdditionalInfoEntries

public Application clearAdditionalInfoEntries()

Removes all the entries added into AdditionalInfo.

Returns a reference to this object so that method calls can be chained together.

toString

public String toString()

Returns a string representation of this object; useful for testing and debugging.

Overrides:

toString in class Object

Returns:

A string representation of this object.

See Also:

Object.toString()

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

clone

public Application clone()

Overrides:

clone in class Object