org.apache.flink.table.planner.plan.abilities.source

Class ReadingMetadataSpec

java.lang.Object

org.apache.flink.table.planner.plan.abilities.source.SourceAbilitySpecBase

org.apache.flink.table.planner.plan.abilities.source.ReadingMetadataSpec

All Implemented Interfaces:

SourceAbilitySpec

public final class ReadingMetadataSpec
extends SourceAbilitySpecBase

A sub-class of SourceAbilitySpec that can not only serialize/deserialize the metadata columns to/from JSON, but also can read the metadata columns from SupportsReadingMetadata.

Field Summary

Fields

Modifier and Type	Field and Description
static String	FIELD_NAME_METADATA_KEYS

Fields inherited from class org.apache.flink.table.planner.plan.abilities.source.SourceAbilitySpecBase

FIELD_NAME_PRODUCED_TYPE

Constructor Summary

Constructors

Constructor and Description
ReadingMetadataSpec(List<String> metadataKeys, org.apache.flink.table.types.logical.RowType producedType)

Method Summary

Modifier and Type	Method and Description
void	apply(org.apache.flink.table.connector.source.DynamicTableSource tableSource, SourceAbilityContext context) Apply the ability to the given DynamicTableSource.
boolean	equals(Object o)
String	getDigests(SourceAbilityContext context) Additional digests to generate when this spec is applied to the source.
List<String>	getMetadataKeys()
int	hashCode()

Methods inherited from class org.apache.flink.table.planner.plan.abilities.source.SourceAbilitySpecBase

getProducedType

Methods inherited from class java.lang.Object

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

Field Detail

FIELD_NAME_METADATA_KEYS

public static final String FIELD_NAME_METADATA_KEYS

See Also:

Constant Field Values

Constructor Detail

ReadingMetadataSpec

public ReadingMetadataSpec(List<String> metadataKeys,
                           org.apache.flink.table.types.logical.RowType producedType)

Method Detail

getMetadataKeys

public List<String> getMetadataKeys()

apply

public void apply(org.apache.flink.table.connector.source.DynamicTableSource tableSource,
                  SourceAbilityContext context)

Description copied from interface: SourceAbilitySpec

Apply the ability to the given DynamicTableSource.

getDigests

public String getDigests(SourceAbilityContext context)

Description copied from interface: SourceAbilitySpec

Additional digests to generate when this spec is applied to the source.

Parameters:

context - The context about the source.

equals

public boolean equals(Object o)

Overrides:

equals in class SourceAbilitySpecBase

hashCode

public int hashCode()

Overrides:

hashCode in class SourceAbilitySpecBase