private static AttributeKey getAttributeKey(final String schemaArn, final String facetName, final String attributeName) {
        return new AttributeKey().withFacetName(facetName).withSchemaArn(schemaArn).withName(attributeName);
    }
private static AttributeKey getAttributeKey ( final String schemaArn , final String facetName , final String attributeName ) { return new AttributeKey ( ) . withFacetName ( facetName ) . withSchemaArn ( schemaArn ) . withName ( attributeName ) ; }
Gets attribute key.

@param schemaArn     the schema arn
@param facetName     the facet name
@param attributeName the attribute name
@return the attribute key