org.apache.hudi.common.model

Class HoodieMetadataRecordMerger

java.lang.Object

org.apache.hudi.common.model.HoodieAvroRecordMerger

org.apache.hudi.common.model.HoodiePreCombineAvroRecordMerger

org.apache.hudi.common.model.HoodieMetadataRecordMerger

All Implemented Interfaces:

Serializable, HoodieRecordMerger, OperationModeAwareness

public class HoodieMetadataRecordMerger
extends HoodiePreCombineAvroRecordMerger

Record merger that accumulates metadata records.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static HoodieMetadataRecordMerger	INSTANCE

Fields inherited from interface org.apache.hudi.common.model.HoodieRecordMerger

DEFAULT_MERGER_STRATEGY_UUID, OVERWRITE_MERGER_STRATEGY_UUID

Constructor Summary

Constructors

Constructor and Description
HoodieMetadataRecordMerger()

Method Summary

Modifier and Type	Method and Description
List<Pair<HoodieRecord,org.apache.avro.Schema>>	fullOuterMerge(HoodieRecord older, org.apache.avro.Schema oldSchema, HoodieRecord newer, org.apache.avro.Schema newSchema, TypedProperties props) Merges two records with the same key in full outer merge fashion i.e.

Methods inherited from class org.apache.hudi.common.model.HoodiePreCombineAvroRecordMerger

merge

Methods inherited from class org.apache.hudi.common.model.HoodieAvroRecordMerger

asPreCombiningMode, getMergingStrategy, getRecordType

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.hudi.common.model.HoodieRecordMerger

getMandatoryFieldsForMerging, getRecordMergeMode, partialMerge, shouldFlush

Field Detail

INSTANCE

public static final HoodieMetadataRecordMerger INSTANCE

Constructor Detail

HoodieMetadataRecordMerger

public HoodieMetadataRecordMerger()

Method Detail

fullOuterMerge

public List<Pair<HoodieRecord,org.apache.avro.Schema>> fullOuterMerge(HoodieRecord older,
                                                                      org.apache.avro.Schema oldSchema,
                                                                      HoodieRecord newer,
                                                                      org.apache.avro.Schema newSchema,
                                                                      TypedProperties props)
                                                               throws IOException

Description copied from interface: HoodieRecordMerger

Merges two records with the same key in full outer merge fashion i.e. all fields from both records are included.

Throws:

IOException