org.apache.ambari.server.topology

Class Cardinality

java.lang.Object

org.apache.ambari.server.topology.Cardinality

public class Cardinality
extends Object

Component cardinality representation.

Constructor Summary

Constructors

Constructor and Description
Cardinality(String cardinality)

Method Summary

Modifier and Type	Method and Description
String	getValue()
boolean	isAll() Determine if component is required for all host groups.
boolean	isValidCount(int count) Determine if the given count satisfies the required cardinality.
boolean	supportsAutoDeploy() Determine if the cardinality count supports auto-deployment.

Methods inherited from class java.lang.Object

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

Constructor Detail

Cardinality

public Cardinality(String cardinality)

Method Detail

isAll

public boolean isAll()

Determine if component is required for all host groups.

Returns:

true if cardinality is 'ALL', false otherwise

isValidCount

public boolean isValidCount(int count)

Determine if the given count satisfies the required cardinality.

Parameters:

count - number of host groups containing component

Returns:

true id count satisfies the required cardinality, false otherwise

supportsAutoDeploy

public boolean supportsAutoDeploy()

Determine if the cardinality count supports auto-deployment. This determination is independent of whether the component is configured to be auto-deployed. This only indicates whether auto-deployment is supported for the current cardinality. At this time, only cardinalities of ALL or where a count of 1 is valid are supported.

Returns:

true if cardinality supports auto-deployment

getValue

public String getValue()