Package org.apache.spark.sql.sources

Interface CreatableRelationProvider

public interface CreatableRelationProvider

Since:

1.3.0

Method Summary

Modifier and Type	Method	Description
BaseRelation	createRelation(SQLContext sqlContext, SaveMode mode, scala.collection.immutable.Map<String,String> parameters, Dataset<Row> data)	Saves a DataFrame to a destination (using data source-specific parameters)
boolean	supportsDataType(DataType dt)	Check if the relation supports the given data type.

Method Details

createRelation

BaseRelation createRelation(SQLContext sqlContext,
 SaveMode mode,
 scala.collection.immutable.Map<String,String> parameters,
 Dataset<Row> data)

Saves a DataFrame to a destination (using data source-specific parameters)

Parameters:

sqlContext - SQLContext

mode - specifies what happens when the destination already exists

parameters - data source-specific parameters

data - DataFrame to save (i.e. the rows after executing the query)

Returns:

Relation with a known schema

Since:

1.3.0

supportsDataType

boolean supportsDataType(DataType dt)

Check if the relation supports the given data type.

Parameters:

dt - Data type to check

Returns:

True if the data type is supported

Since:

4.0.0