org.apache.drill.exec.store.kafka

Enum MetaDataField

java.lang.Object

java.lang.Enum<MetaDataField>

org.apache.drill.exec.store.kafka.MetaDataField

All Implemented Interfaces:

Serializable, Comparable<MetaDataField>

public enum MetaDataField
extends Enum<MetaDataField>

MetaData fields provide additional information about each message. It is expected that one should not modify the fieldName of each constant as it breaks the compatibility.

Enum Constant Summary

Enum Constants

Enum Constant and Description
KAFKA_MSG_KEY
KAFKA_OFFSET
KAFKA_PARTITION_ID
KAFKA_TIMESTAMP
KAFKA_TOPIC

Method Summary

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

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

KAFKA_TOPIC

public static final MetaDataField KAFKA_TOPIC

KAFKA_PARTITION_ID

public static final MetaDataField KAFKA_PARTITION_ID

KAFKA_OFFSET

public static final MetaDataField KAFKA_OFFSET

KAFKA_TIMESTAMP

public static final MetaDataField KAFKA_TIMESTAMP

KAFKA_MSG_KEY

public static final MetaDataField KAFKA_MSG_KEY

Method Detail

values

public static MetaDataField[] 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 (MetaDataField c : MetaDataField.values())
    System.out.println(c);

Returns:

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

valueOf

public static MetaDataField 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

getFieldName

public String getFieldName()

getFieldType

public TypeProtos.MinorType getFieldType()