class CompositeKeyStateEncoder[GK, K, V] extends StateTypesEncoder[GK, V]
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- new CompositeKeyStateEncoder(keySerializer: Serializer[GK], userKeyEnc: Encoder[K], valEncoder: Encoder[V], schemaForCompositeKeyRow: StructType, stateName: String, hasTtl: Boolean = false)
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- def decodeCompositeKey(row: UnsafeRow): K
The input row is of composite Key schema.
The input row is of composite Key schema. Only user key is returned though grouping key also exist in the row.
- def decodeTtlExpirationMs(row: UnsafeRow): Option[Long]
Decode the ttl information out of Value row.
Decode the ttl information out of Value row. If the ttl has not been set (-1L specifies no user defined value), the API will return None.
- Definition Classes
- StateTypesEncoder
- def decodeUserKeyFromTTLRow(row: CompositeKeyTTLRow): K
- def decodeValue(row: UnsafeRow): V
- Definition Classes
- StateTypesEncoder
- def encodeCompositeKey(groupingKeyByteArr: Array[Byte], userKeyByteArr: Array[Byte]): UnsafeRow
Grouping key and user key are encoded as a row of
schemaForCompositeKeyRowschema.Grouping key and user key are encoded as a row of
schemaForCompositeKeyRowschema. Grouping key will be encoded inRocksDBStateEncoderas the prefix column. - def encodeCompositeKey(userKey: K): UnsafeRow
Grouping key and user key are encoded as a row of
schemaForCompositeKeyRowschema.Grouping key and user key are encoded as a row of
schemaForCompositeKeyRowschema. Grouping key will be encoded inRocksDBStateEncoderas the prefix column. - def encodeGroupingKey(): UnsafeRow
- Definition Classes
- StateTypesEncoder
- def encodeSerializedGroupingKey(groupingKeyBytes: Array[Byte]): UnsafeRow
Encodes the provided grouping key into Spark UnsafeRow.
Encodes the provided grouping key into Spark UnsafeRow.
- groupingKeyBytes
serialized grouping key byte array
- returns
encoded UnsafeRow
- Definition Classes
- StateTypesEncoder
- def encodeValue(value: V, expirationMs: Long): UnsafeRow
Encode the specified value in Spark UnsafeRow with provided ttl expiration.
Encode the specified value in Spark UnsafeRow with provided ttl expiration.
- Definition Classes
- StateTypesEncoder
- def encodeValue(value: V): UnsafeRow
Encode the specified value in Spark UnsafeRow with no ttl.
Encode the specified value in Spark UnsafeRow with no ttl.
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- StateTypesEncoder
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- def isExpired(row: UnsafeRow, batchTimestampMs: Long): Boolean
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- StateTypesEncoder
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- def serializeGroupingKey(): Array[Byte]
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- StateTypesEncoder
- def serializeUserKey(userKey: K): Array[Byte]
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- Deprecated
(Since version 9)