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1.  final def !=(arg0: Any): Boolean

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2.  final def ##(): Int

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3.  final def ==(arg0: Any): Boolean

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4.  val MIN_READER_VERSION_PROP: String
5.  val MIN_WRITER_VERSION_PROP: String
6.  def apply(minReaderVersion: Int = Action.readerVersion, minWriterVersion: Int = Action.writerVersion): Protocol

   Construct a Protocol case class of the given reader and writer versions.

   Construct a Protocol case class of the given reader and writer versions. This method will initialize table features fields when reader and writer versions are capable.

7.  final def asInstanceOf[T0]: T0

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8.  def assertMetadataContainsNoProtocolProps(metadata: Metadata): Unit

   Assert a table metadata contains no protocol-related table properties.

9.  def assertTablePropertyConstraintsSatisfied(spark: SparkSession, metadata: Metadata, snapshot: Snapshot): Unit

   Verify that the table properties satisfy legality constraints.

   Verify that the table properties satisfy legality constraints. Throw an exception if not.

10.  def clone(): AnyRef

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11.  final def eq(arg0: AnyRef): Boolean

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12.  def equals(arg0: Any): Boolean

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13.  def extractAutomaticallyEnabledFeatures(spark: SparkSession, metadata: Metadata, protocol: Protocol): Set[TableFeature]

    Extracts all table features that are enabled by the given metadata and the optional protocol.

    Extracts all table features that are enabled by the given metadata and the optional protocol. This includes all already enabled features (if a protocol is provided), the features enabled directly by metadata, and all of their (transitive) dependencies.

14.  def filterProtocolPropsFromTableProps(properties: Map[String, String]): Map[String, String]
15.  def finalize(): Unit

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16.  def forNewTable(spark: SparkSession, metadataOpt: Option[Metadata]): Protocol

    Picks the protocol version for a new table given the Delta table metadata.

    Picks the protocol version for a new table given the Delta table metadata. The result satisfies all active features in the metadata and protocol-related configs in table properties, i.e., configs with keys MIN_READER_VERSION_PROP, MIN_WRITER_VERSION_PROP, and FEATURE_PROP_PREFIX. This method will also consider protocol-related configs: default reader version, default writer version, and features enabled by DEFAULT_FEATURE_PROP_PREFIX.

17.  def forTableFeature(tf: TableFeature): Protocol

    Returns the required protocol for a given feature.

    Returns the required protocol for a given feature. Takes into account dependent features.

18.  final def getClass(): Class[_]

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19.  def getProtocolVersionsFromTableConf(conf: Map[String, String]): (Option[Int], Option[Int])
20.  def getReaderVersionFromTableConf(conf: Map[String, String]): Option[Int]
21.  def getWriterVersionFromTableConf(conf: Map[String, String]): Option[Int]
22.  def hashCode(): Int

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23.  final def isInstanceOf[T0]: Boolean

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24.  def minProtocolComponentsFromAutomaticallyEnabledFeatures(spark: SparkSession, metadata: Metadata, current: Protocol): (Int, Int, Set[TableFeature])

    Given the Delta table metadata, returns the minimum required reader and writer version that satisfies all enabled table features in the metadata plus all enabled features as a set.

    Given the Delta table metadata, returns the minimum required reader and writer version that satisfies all enabled table features in the metadata plus all enabled features as a set.

    This function returns the protocol versions and features individually instead of a Protocol, so the caller can identify the features that caused the protocol version. For example, if the return values are (2, 5, columnMapping), the caller can safely ignore all other features required by the protocol with a reader and writer version of 2 and 5.

    This method does not process protocol-related configs in table properties or session defaults, i.e., configs with keys MIN_READER_VERSION_PROP, MIN_WRITER_VERSION_PROP, and FEATURE_PROP_PREFIX.

25.  def minProtocolComponentsFromMetadata(spark: SparkSession, metadata: Metadata): (Int, Int, Set[TableFeature])

    Given the Delta table metadata, returns the minimum required reader and writer version that satisfies all enabled features in the metadata and protocol-related configs in table properties, i.e., configs with keys MIN_READER_VERSION_PROP, MIN_WRITER_VERSION_PROP, and FEATURE_PROP_PREFIX.

    Given the Delta table metadata, returns the minimum required reader and writer version that satisfies all enabled features in the metadata and protocol-related configs in table properties, i.e., configs with keys MIN_READER_VERSION_PROP, MIN_WRITER_VERSION_PROP, and FEATURE_PROP_PREFIX.

    This function returns the protocol versions and features individually instead of a Protocol, so the caller can identify the features that caused the protocol version. For example, if the return values are (2, 5, columnMapping + preceding features), the caller can safely ignore all other features required by the protocol with a reader and writer version of 2 and 5.

    Note that this method does not consider features configured in session defaults. To make them effective, copy them to metadata using DeltaConfigs.mergeGlobalConfigs.

26.  final def ne(arg0: AnyRef): Boolean

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27.  final def notify(): Unit

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28.  final def notifyAll(): Unit

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29.  final def synchronized[T0](arg0: ⇒ T0): T0

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30.  def toString(): String

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31.  def upgradeProtocolFromMetadataForExistingTable(spark: SparkSession, metadata: Metadata, current: Protocol): Option[Protocol]

    Upgrade the current protocol to satisfy all auto-update capable features required by the table metadata.

    Upgrade the current protocol to satisfy all auto-update capable features required by the table metadata. An Delta error will be thrown if a non-auto-update capable feature is required by the metadata and not in the resulting protocol, in such a case the user must run ALTER TABLE to add support for this feature beforehand using the delta.feature.featureName table property.

    Refer to FeatureAutomaticallyEnabledByMetadata.automaticallyUpdateProtocolOfExistingTables to know more about "auto-update capable" features.

    Note: this method only considers metadata-enabled features. To avoid confusion, the caller must apply and remove protocol-related table properties from the metadata before calling this method.

32.  final def wait(): Unit

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33.  final def wait(arg0: Long, arg1: Int): Unit

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34.  final def wait(arg0: Long): Unit

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