class CompositeKeyStateEncoder[K, V] extends StateTypesEncoder[V]
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- new CompositeKeyStateEncoder(keyEncoder: ExpressionEncoder[Any], userKeyEnc: Encoder[K], valEncoder: Encoder[V], 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 decodeUserKey(row: UnsafeRow): K
- def decodeValue(row: UnsafeRow): V
- Definition Classes
- StateTypesEncoder
- def encodeCompositeKey(groupingKey: UnsafeRow, userKey: UnsafeRow): UnsafeRow
- 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
- CompositeKeyStateEncoder → StateTypesEncoder
- def encodeUserKey(userKey: K): UnsafeRow
- 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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- @throws(classOf[java.lang.Throwable]) @Deprecated
- Deprecated
(Since version 9)