ExternalCommandRunner

trait ExternalCommandRunner extends AnyRef

An interface to execute an arbitrary string command inside an external execution engine rather than Spark. This could be useful when user wants to execute some commands out of Spark. For example, executing custom DDL/DML command for JDBC, creating index for ElasticSearch, creating cores for Solr and so on.

This interface will be instantiated when end users call SparkSession#executeCommand.

Annotations: @Unstable()
Source: ExternalCommandRunner.java
Since: 3.0.0

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abstract def executeCommand(command: String, options: CaseInsensitiveStringMap): Array[String]
Execute the given command.
Execute the given command.
command
The command string provided by users.
options
The user-specified case-insensitive options.
returns
The output of the command.

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abstract def executeCommand(command: String, options: CaseInsensitiveStringMap): Array[String]
Execute the given command.
Execute the given command.
command
The command string provided by users.
options
The user-specified case-insensitive options.
returns
The output of the command.
final def !=(arg0: Any): Boolean
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final def ##: Int
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final def ==(arg0: Any): Boolean
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final def asInstanceOf[T0]: T0
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def clone(): AnyRef
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protected[lang]
Definition Classes
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@throws(classOf[java.lang.CloneNotSupportedException]) @IntrinsicCandidate() @native()
final def eq(arg0: AnyRef): Boolean
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def equals(arg0: AnyRef): Boolean
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final def getClass(): Class[_ <: AnyRef]
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@IntrinsicCandidate() @native()
def hashCode(): Int
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@IntrinsicCandidate() @native()
final def isInstanceOf[T0]: Boolean
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final def ne(arg0: AnyRef): Boolean
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final def notify(): Unit
Definition Classes
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@IntrinsicCandidate() @native()
final def notifyAll(): Unit
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@IntrinsicCandidate() @native()
final def synchronized[T0](arg0: => T0): T0
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def toString(): String
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final def wait(arg0: Long, arg1: Int): Unit
Definition Classes
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@throws(classOf[java.lang.InterruptedException])
final def wait(arg0: Long): Unit
Definition Classes
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Annotations
@throws(classOf[java.lang.InterruptedException]) @native()
final def wait(): Unit
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@throws(classOf[java.lang.InterruptedException])
def finalize(): Unit
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protected[lang]
Definition Classes
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@throws(classOf[java.lang.Throwable]) @Deprecated
Deprecated
(Since version 9)

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ExternalCommandRunner

trait ExternalCommandRunner extends AnyRef

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ExternalCommandRunner

trait ExternalCommandRunner extends AnyRef

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ExternalCommandRunner