case class StateSchemaBroadcast(broadcast: Broadcast[StateSchemaMetadata]) extends Logging with StateSchemaProvider with Product with Serializable
Broadcasts schema metadata information for stateful operators in a streaming query.
This class provides a way to distribute schema evolution information to all executors via Spark's broadcast mechanism. Each stateful operator in a streaming query maintains its own instance of this class to track schema versions and evolution.
- broadcast
Spark broadcast variable containing the schema metadata
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Instance Constructors
- new StateSchemaBroadcast(broadcast: Broadcast[StateSchemaMetadata])
- broadcast
Spark broadcast variable containing the schema metadata
Type Members
- implicit class LogStringContext extends AnyRef
- Definition Classes
- Logging
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- final def asInstanceOf[T0]: T0
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- val broadcast: Broadcast[StateSchemaMetadata]
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- @IntrinsicCandidate() @native()
- def getCurrentStateSchemaId(colFamilyName: String, isKey: Boolean): Short
- Definition Classes
- StateSchemaBroadcast → StateSchemaProvider
- def getSchemaMetadataValue(key: StateSchemaMetadataKey): StateSchemaMetadataValue
Retrieves the schema information for a given column family and schema version
Retrieves the schema information for a given column family and schema version
- key
A combination of column family name and schema ID
- returns
The corresponding schema metadata value containing both SQL and Avro schemas
- Definition Classes
- StateSchemaBroadcast → StateSchemaProvider
- def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
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- def logDebug(entry: LogEntry, throwable: Throwable): Unit
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- def logDebug(msg: => String): Unit
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- def logInfo(msg: => String): Unit
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- def logName: String
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- def logTrace(entry: LogEntry, throwable: Throwable): Unit
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- def productElementNames: Iterator[String]
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- def withLogContext(context: Map[String, String])(body: => Unit): Unit
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- def finalize(): Unit
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- Deprecated
(Since version 9)