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org.apache.spark.sql.avro

SchemaConverters

object SchemaConverters extends Logging

This object contains method that are used to convert sparkSQL schemas to avro schemas and vice versa.

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@DeveloperApi()
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Type Members

  1. implicit class LogStringContext extends AnyRef
    Definition Classes
    Logging
  2. case class SchemaType(dataType: DataType, nullable: Boolean) extends Product with Serializable

    Internal wrapper for SQL data type and nullability.

    Internal wrapper for SQL data type and nullability.

    Since

    2.4.0

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
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  3. final def ==(arg0: Any): Boolean
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  4. final def asInstanceOf[T0]: T0
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  5. def clone(): AnyRef
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    protected[lang]
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    @throws(classOf[java.lang.CloneNotSupportedException]) @IntrinsicCandidate() @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
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  7. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  8. final def getClass(): Class[_ <: AnyRef]
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    Annotations
    @IntrinsicCandidate() @native()
  9. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @IntrinsicCandidate() @native()
  10. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  11. def initializeLogIfNecessary(isInterpreter: Boolean): Unit
    Attributes
    protected
    Definition Classes
    Logging
  12. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  13. def isTraceEnabled(): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  14. def log: Logger
    Attributes
    protected
    Definition Classes
    Logging
  15. def logDebug(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  16. def logDebug(entry: LogEntry, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  17. def logDebug(entry: LogEntry): Unit
    Attributes
    protected
    Definition Classes
    Logging
  18. def logDebug(msg: => String): Unit
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    protected
    Definition Classes
    Logging
  19. def logError(msg: => String, throwable: Throwable): Unit
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    protected
    Definition Classes
    Logging
  20. def logError(entry: LogEntry, throwable: Throwable): Unit
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    protected
    Definition Classes
    Logging
  21. def logError(entry: LogEntry): Unit
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    protected
    Definition Classes
    Logging
  22. def logError(msg: => String): Unit
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    protected
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    Logging
  23. def logInfo(msg: => String, throwable: Throwable): Unit
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    protected
    Definition Classes
    Logging
  24. def logInfo(entry: LogEntry, throwable: Throwable): Unit
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    Definition Classes
    Logging
  25. def logInfo(entry: LogEntry): Unit
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    protected
    Definition Classes
    Logging
  26. def logInfo(msg: => String): Unit
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    protected
    Definition Classes
    Logging
  27. def logName: String
    Attributes
    protected
    Definition Classes
    Logging
  28. def logTrace(msg: => String, throwable: Throwable): Unit
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    protected
    Definition Classes
    Logging
  29. def logTrace(entry: LogEntry, throwable: Throwable): Unit
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    protected
    Definition Classes
    Logging
  30. def logTrace(entry: LogEntry): Unit
    Attributes
    protected
    Definition Classes
    Logging
  31. def logTrace(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  32. def logWarning(msg: => String, throwable: Throwable): Unit
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    protected
    Definition Classes
    Logging
  33. def logWarning(entry: LogEntry, throwable: Throwable): Unit
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    protected
    Definition Classes
    Logging
  34. def logWarning(entry: LogEntry): Unit
    Attributes
    protected
    Definition Classes
    Logging
  35. def logWarning(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  36. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  37. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @IntrinsicCandidate() @native()
  38. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @IntrinsicCandidate() @native()
  39. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  40. def toAvroType(catalystType: DataType, nullable: Boolean = false, recordName: String = "topLevelRecord", nameSpace: String = ""): Schema

    Converts a Spark SQL schema to a corresponding Avro schema.

    Converts a Spark SQL schema to a corresponding Avro schema.

    Since

    2.4.0

  41. def toAvroTypeWithDefaults(structType: StructType): Schema

    Main entry point for converting a Spark SQL StructType to an Avro schema.

    Main entry point for converting a Spark SQL StructType to an Avro schema. This method gives all fields default 'nulls' while preserving the structure.

    structType

    The Spark SQL StructType to convert

    returns

    An Avro Schema representation of the input StructType

  42. def toSqlType(avroSchema: Schema): SchemaType

    Converts an Avro schema to a corresponding Spark SQL schema.

    Converts an Avro schema to a corresponding Spark SQL schema.

    Since

    2.4.0

  43. def toSqlType(avroSchema: Schema, useStableIdForUnionType: Boolean, stableIdPrefixForUnionType: String, recursiveFieldMaxDepth: Int = -1): SchemaType

    Converts an Avro schema to a corresponding Spark SQL schema.

    Converts an Avro schema to a corresponding Spark SQL schema.

    avroSchema

    The Avro schema to convert.

    useStableIdForUnionType

    If true, Avro schema is deserialized into Spark SQL schema, and the Avro Union type is transformed into a structure where the field names remain consistent with their respective types.

    stableIdPrefixForUnionType

    The prefix to use to configure the prefix for fields of Avro Union type

    recursiveFieldMaxDepth

    The maximum depth to recursively process fields in Avro schema. -1 means not supported.

    Since

    4.0.0

  44. def toString(): String
    Definition Classes
    AnyRef → Any
  45. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  46. final def wait(arg0: Long): Unit
    Definition Classes
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    @throws(classOf[java.lang.InterruptedException]) @native()
  47. final def wait(): Unit
    Definition Classes
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    Annotations
    @throws(classOf[java.lang.InterruptedException])
  48. def withLogContext(context: Map[String, String])(body: => Unit): Unit
    Attributes
    protected
    Definition Classes
    Logging

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable]) @Deprecated
    Deprecated

    (Since version 9)

  2. def toSqlType(avroSchema: Schema, options: Map[String, String]): SchemaType
    Annotations
    @deprecated
    Deprecated

    (Since version 4.0.0) using toSqlType(..., useStableIdForUnionType: Boolean) instead

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