Databricks Scala Spark API < Back

Packages

package root

Definition Classes
root
package org

Definition Classes
root
package apache

Definition Classes
org
package spark
Core Spark functionality.
Core Spark functionality. org.apache.spark.SparkContext serves as the main entry point to Spark, while org.apache.spark.rdd.RDD is the data type representing a distributed collection, and provides most parallel operations.
In addition, org.apache.spark.rdd.PairRDDFunctions contains operations available only on RDDs of key-value pairs, such as groupByKey and join; org.apache.spark.rdd.DoubleRDDFunctions contains operations available only on RDDs of Doubles; and org.apache.spark.rdd.SequenceFileRDDFunctions contains operations available on RDDs that can be saved as SequenceFiles. These operations are automatically available on any RDD of the right type (e.g. RDD[(Int, Int)] through implicit conversions.
Java programmers should reference the org.apache.spark.api.java package for Spark programming APIs in Java.
Classes and methods marked with Experimental are user-facing features which have not been officially adopted by the Spark project. These are subject to change or removal in minor releases.
Classes and methods marked with Developer API are intended for advanced users want to extend Spark through lower level interfaces. These are subject to changes or removal in minor releases.

Definition Classes
apache
package sql
Allows the execution of relational queries, including those expressed in SQL using Spark.
Allows the execution of relational queries, including those expressed in SQL using Spark.

Definition Classes
spark
package util

Definition Classes
sql
CaseInsensitiveStringMap
ExecutionListenerManager
NumericHistogram
QueryExecutionListener
SQLOpenHashSet

t

org.apache.spark.sql.util

QueryExecutionListener

trait QueryExecutionListener extends AnyRef

The interface of query execution listener that can be used to analyze execution metrics.

Note: Implementations should guarantee thread-safety as they can be invoked by multiple different threads.

Linear Supertypes

Ordering

Alphabetic
By Inheritance

Inherited

QueryExecutionListener
AnyRef
Any

Hide All
Show All

Visibility

Public
All

Abstract Value Members

abstract def onFailure(funcName: String, qe: QueryExecution, exception: Exception): Unit
A callback function that will be called when a query execution failed.
A callback function that will be called when a query execution failed.
funcName
the name of the action that triggered this query.
qe
the QueryExecution object that carries detail information like logical plan, physical plan, etc.
exception
the exception that failed this query. If java.lang.Error is thrown during execution, it will be wrapped with an Exception and it can be accessed by exception.getCause.

Annotations
@DeveloperApi()
Note
This can be invoked by multiple different threads.
abstract def onSuccess(funcName: String, qe: QueryExecution, durationNs: Long): Unit
A callback function that will be called when a query executed successfully.
A callback function that will be called when a query executed successfully.
funcName
name of the action that triggered this query.
qe
the QueryExecution object that carries detail information like logical plan, physical plan, etc.
durationNs
the execution time for this query in nanoseconds.

Annotations
@DeveloperApi()
Note
This can be invoked by multiple different threads.

Concrete Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws( ... ) @native()
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
Annotations
@native()
def hashCode(): Int

Definition Classes
AnyRef → Any
Annotations
@native()
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
Annotations
@native()
final def notifyAll(): Unit

Definition Classes
AnyRef
Annotations
@native()
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... ) @native()

Inherited from AnyRef

Inherited from Any

Ungrouped