Package org.apache.flink.table.runtime.operators.join.stream.bundle

Class InputSideHasNoUniqueKeyBundle

java.lang.Object

org.apache.flink.table.runtime.operators.join.stream.bundle.BufferBundle<Map<Integer,List<RowData>>>

org.apache.flink.table.runtime.operators.join.stream.bundle.InputSideHasNoUniqueKeyBundle

public class InputSideHasNoUniqueKeyBundle
extends BufferBundle<Map<Integer,List<RowData>>>

For the case that input has no uniqueKey.

Field Summary

Fields inherited from class org.apache.flink.table.runtime.operators.join.stream.bundle.BufferBundle

actualSize, bundle, count

Constructor Summary

Constructors

Constructor	Description
InputSideHasNoUniqueKeyBundle()

Method Summary

Modifier and Type	Method	Description
int	addRecord(RowData joinKey, RowData uniqueKey, RowData record)	The structure of the bundle: first-level key is the joinKey while the second-level key is the hash value of the record.
Map<RowData,List<RowData>>	getRecords()	Get records associated with joinKeys from bufferBundle.
Map<RowData,List<RowData>>	getRecordsWithJoinKey(RowData joinKey)	Get records associated with joinKeys from bufferBundle.

Methods inherited from class org.apache.flink.table.runtime.operators.join.stream.bundle.BufferBundle

clear, getJoinKeys, isEmpty, reducedSize

Methods inherited from class java.lang.Object

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

Constructor Detail

InputSideHasNoUniqueKeyBundle

public InputSideHasNoUniqueKeyBundle()

Method Detail

addRecord

public int addRecord(RowData joinKey,
                     @Nullable
                     RowData uniqueKey,
                     RowData record)

The structure of the bundle: first-level key is the joinKey while the second-level key is the hash value of the record. And the value of the second hash is a list of records. The bundle only stores the accumulated records.When the retract record occurs it would find the corresponding records(accumulated) and remove it.

Specified by:

addRecord in class BufferBundle<Map<Integer,List<RowData>>>

Parameters:

joinKey - the joinKey associated with the record.

uniqueKey - the uniqueKey associated with the record. This could be null.

record - The record to add.

Returns:

number of processed by current bundle.

getRecords

public Map<RowData,List<RowData>> getRecords()
                                            throws Exception

Description copied from class: BufferBundle

Get records associated with joinKeys from bufferBundle.

Specified by:

getRecords in class BufferBundle<Map<Integer,List<RowData>>>

Returns:

a map whose key is joinKey and value is list of records.

Throws:

Exception

getRecordsWithJoinKey

public Map<RowData,List<RowData>> getRecordsWithJoinKey(RowData joinKey)

Description copied from class: BufferBundle

Get records associated with joinKeys from bufferBundle. And this function is different from getRecords() above where getRecords() returns a map whose key is joinKey and value is list of records.

Specified by:

getRecordsWithJoinKey in class BufferBundle<Map<Integer,List<RowData>>>

Parameters:

joinKey - one of joinKeys stored in this bundle.

Returns:

a map whose key is uniqueKey and value is a list of records.