org.apache.hudi.common.config

Enum RecordMergeMode

java.lang.Object

java.lang.Enum<RecordMergeMode>

org.apache.hudi.common.config.RecordMergeMode

All Implemented Interfaces:

Serializable, Comparable<RecordMergeMode>

@EnumDescription(value="Determines the logic of merging updates")
public enum RecordMergeMode
extends Enum<RecordMergeMode>

Enum Constant Summary

Enum Constants

Enum Constant and Description
CUSTOM
EVENT_TIME_ORDERING
OVERWRITE_WITH_LATEST

Method Summary

Modifier and Type	Method and Description
static RecordMergeMode	valueOf(String name) Returns the enum constant of this type with the specified name.
static RecordMergeMode[]	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

OVERWRITE_WITH_LATEST

@EnumFieldDescription(value="Using transaction time to merge records, i.e., the record from later transaction overwrites the earlier record with the same key.")
public static final RecordMergeMode OVERWRITE_WITH_LATEST

EVENT_TIME_ORDERING

@EnumFieldDescription(value="Using event time as the ordering to merge records, i.e., the record with the larger event time overwrites the record with the smaller event time on the same key, regardless of transaction time. The event time or preCombine field needs to be specified by the user.")
public static final RecordMergeMode EVENT_TIME_ORDERING

CUSTOM

@EnumFieldDescription(value="Using custom merging logic specified by the user.")
public static final RecordMergeMode CUSTOM

Method Detail

values

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

Returns:

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

valueOf

public static RecordMergeMode 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