object SQLContext extends SQLContextCompanion with Serializable
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- SQLContext.scala
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Deprecated Value Members
- def clearActive(): Unit
Clears the active SQLContext for current thread.
Clears the active SQLContext for current thread. Subsequent calls to getOrCreate will return the first created context instead of a thread-local override.
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- SQLContextCompanion
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- @deprecated
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(Since version 2.0.0) Use SparkSession.clearActiveSession instead
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1.6.0
- def finalize(): Unit
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- Deprecated
(Since version 9)
- def getOrCreate(sparkContext: SparkContext): SQLContext
Get the singleton SQLContext if it exists or create a new one using the given SparkContext.
Get the singleton SQLContext if it exists or create a new one using the given SparkContext.
This function can be used to create a singleton SQLContext object that can be shared across the JVM.
If there is an active SQLContext for current thread, it will be returned instead of the global one.
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- SQLContext → SQLContextCompanion
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- @deprecated
- Deprecated
(Since version 2.0.0) Use SparkSession.builder instead
- def setActive(sqlContext: SQLContextImpl): Unit
Changes the SQLContext that will be returned in this thread and its children when SQLContext.getOrCreate() is called.
Changes the SQLContext that will be returned in this thread and its children when SQLContext.getOrCreate() is called. This can be used to ensure that a given thread receives a SQLContext with an isolated session, instead of the global (first created) context.
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- SQLContextCompanion
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- @deprecated
- Deprecated
(Since version 2.0.0) Use SparkSession.setActiveSession instead
- Since
1.6.0