org.apache.lens.server.api.driver

Enum StatusUpdateMethod

java.lang.Object

java.lang.Enum<StatusUpdateMethod>

org.apache.lens.server.api.driver.StatusUpdateMethod

All Implemented Interfaces:

Serializable, Comparable<StatusUpdateMethod>

public enum StatusUpdateMethod
extends Enum<StatusUpdateMethod>

Enum Constant Summary

Enum Constants

Enum Constant and Description
PULL Driver has to be polled for status updates.
PUSH Async status update: driver supports taking a callback and updating status through that.

Method Summary

Modifier and Type	Method and Description
static StatusUpdateMethod	valueOf(String name) Returns the enum constant of this type with the specified name.
static StatusUpdateMethod[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

PUSH

public static final StatusUpdateMethod PUSH

Async status update: driver supports taking a callback and updating status through that. Should be used for fast drivers e.g. JDBC, ES, Druid

PULL

public static final StatusUpdateMethod PULL

Driver has to be polled for status updates. Should be used for slow drivers e.g. Hive, Spark.

Method Detail

values

public static StatusUpdateMethod[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (StatusUpdateMethod c : StatusUpdateMethod.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static StatusUpdateMethod valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null