abstract class RuleExecutor[TreeType <: TreeNode[_]] extends Logging
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- new RuleExecutor()
Type Members
- case class Batch(name: String, strategy: Strategy, rules: Rule[TreeType]*) extends Product with Serializable
A batch of rules.
A batch of rules.
- Attributes
- protected[catalyst]
- case class FixedPoint(maxIterations: Int, errorOnExceed: Boolean = false, maxIterationsSetting: String = null) extends Strategy with Product with Serializable
A strategy that runs until fix point or maxIterations times, whichever comes first.
A strategy that runs until fix point or maxIterations times, whichever comes first. Especially, a FixedPoint(1) batch is supposed to run only once.
- implicit class LogStringContext extends AnyRef
- Definition Classes
- Logging
- abstract class Strategy extends AnyRef
An execution strategy for rules that indicates the maximum number of executions.
An execution strategy for rules that indicates the maximum number of executions. If the execution reaches fix point (i.e. converge) before maxIterations, it will stop.
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- val excludedOnceBatches: Set[String]
Once batches that are excluded in the idempotence checker
Once batches that are excluded in the idempotence checker
- Attributes
- protected
- def execute(plan: TreeType): TreeType
Executes the batches of rules defined by the subclass.
Executes the batches of rules defined by the subclass. The batches are executed serially using the defined execution strategy. Within each batch, rules are also executed serially.
- def executeAndTrack(plan: TreeType, tracker: QueryPlanningTracker): TreeType
Executes the batches of rules defined by the subclass, and also tracks timing info for each rule using the provided tracker.
Executes the batches of rules defined by the subclass, and also tracks timing info for each rule using the provided tracker.
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- final def getClass(): Class[_ <: AnyRef]
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- def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
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- def initializeLogIfNecessary(isInterpreter: Boolean): Unit
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- def isTraceEnabled(): Boolean
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- def log: Logger
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- def logDebug(msg: => String, throwable: Throwable): Unit
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- def logDebug(entry: LogEntry, throwable: Throwable): Unit
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- def logDebug(entry: LogEntry): Unit
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- Logging
- def logDebug(msg: => String): Unit
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- def logError(msg: => String, throwable: Throwable): Unit
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- def logError(entry: LogEntry, throwable: Throwable): Unit
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- def logError(entry: LogEntry): Unit
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- def logError(msg: => String): Unit
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- def logInfo(msg: => String, throwable: Throwable): Unit
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- def logInfo(entry: LogEntry, throwable: Throwable): Unit
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- def logInfo(entry: LogEntry): Unit
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- def logInfo(msg: => String): Unit
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- def logName: String
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- def logTrace(msg: => String, throwable: Throwable): Unit
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- def logTrace(entry: LogEntry, throwable: Throwable): Unit
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- def logTrace(entry: LogEntry): Unit
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- def logTrace(msg: => String): Unit
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- def logWarning(msg: => String, throwable: Throwable): Unit
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- def logWarning(entry: LogEntry, throwable: Throwable): Unit
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- def logWarning(entry: LogEntry): Unit
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- Logging
- def logWarning(msg: => String): Unit
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- Logging
- def name: String
Name for this rule executor, automatically inferred based on class name.
Name for this rule executor, automatically inferred based on class name.
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- final def ne(arg0: AnyRef): Boolean
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- final def notify(): Unit
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- def toString(): String
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- def validatePlanChanges(previousPlan: TreeType, currentPlan: TreeType): Option[String]
Defines a validate function that validates the plan changes after the execution of each rule, to make sure these rules make valid changes to the plan.
Defines a validate function that validates the plan changes after the execution of each rule, to make sure these rules make valid changes to the plan. For example, we can check whether a plan is still resolved after each rule in
Optimizer, so that we can catch rules that turn the plan into unresolved.- Attributes
- protected
- def validatePlanChangesLightweight(previousPlan: TreeType, currentPlan: TreeType): Option[String]
Defines a validate function that validates the plan changes after the execution of each rule, to make sure these rules make valid changes to the plan.
Defines a validate function that validates the plan changes after the execution of each rule, to make sure these rules make valid changes to the plan. Since this is enabled by default, this should only consist of very lightweight checks.
- Attributes
- protected
- final def wait(arg0: Long, arg1: Int): Unit
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- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
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- final def wait(): Unit
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- def withLogContext(context: Map[String, String])(body: => Unit): Unit
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- Logging
- case object Once extends Strategy with Product with Serializable
A strategy that is run once and idempotent.
Deprecated Value Members
- def finalize(): Unit
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- @throws(classOf[java.lang.Throwable]) @Deprecated
- Deprecated
(Since version 9)