org.apache.ambari.server.controller.predicate

Class CategoryIsEmptyPredicate

java.lang.Object

org.apache.ambari.server.controller.predicate.PropertyPredicate

org.apache.ambari.server.controller.predicate.CategoryPredicate

org.apache.ambari.server.controller.predicate.CategoryIsEmptyPredicate

All Implemented Interfaces:

BasePredicate, PredicateVisitorAcceptor, Predicate

public class CategoryIsEmptyPredicate
extends CategoryPredicate

Predicate that checks if the associated property category is empty. If the associated property id references a Map property then treat the Map as a category.

Constructor Summary

Constructors

Constructor and Description
CategoryIsEmptyPredicate(String propertyId)

Method Summary

Modifier and Type	Method and Description
boolean	evaluate(Resource resource) Evaluate the predicate for the given resource.
String	toString()

Methods inherited from class org.apache.ambari.server.controller.predicate.CategoryPredicate

accept

Methods inherited from class org.apache.ambari.server.controller.predicate.PropertyPredicate

equals, getPropertyId, getPropertyIds, hashCode

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ambari.server.controller.predicate.BasePredicate

getPropertyIds

Constructor Detail

CategoryIsEmptyPredicate

public CategoryIsEmptyPredicate(String propertyId)

Method Detail

evaluate

public boolean evaluate(Resource resource)

Description copied from interface: Predicate

Evaluate the predicate for the given resource.

Parameters:

resource - the resource to evaluate the predicate against

Returns:

the result of applying the predicate to the given resource

toString

public String toString()

Overrides:

toString in class Object