Package com.mongodb.spark.sql.connector.schema

Class RowToBsonDocumentConverter

java.lang.Object

com.mongodb.spark.sql.connector.schema.RowToBsonDocumentConverter

All Implemented Interfaces:

java.io.Serializable

@NotNull
public final class RowToBsonDocumentConverter
extends java.lang.Object
implements java.io.Serializable

The helper for conversion of GenericRowWithSchema instances to BsonDocuments.

All Spark types are considered convertible to Bson types.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	RowToBsonDocumentConverter.ObjectToBsonValue	A serializable Function<Object, BsonValue> interface.

Constructor Summary

Constructors

Constructor	Description
RowToBsonDocumentConverter(StructType schema, WriteConfig.ConvertJson convertJson, boolean ignoreNulls)	Construct a new instance

Method Summary

Modifier and Type	Method	Description
static RowToBsonDocumentConverter.ObjectToBsonValue	createObjectToBsonValue(DataType dataType, WriteConfig.ConvertJson convertJson, boolean ignoreNulls)	Returns a conversion function that converts an object to a BsonValue
org.bson.BsonDocument	fromRow(org.apache.spark.sql.catalyst.InternalRow row)	Converts a InternalRow to a BsonDocument
org.bson.BsonDocument	fromRow(Row row)	Converts a Row to a BsonDocument

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RowToBsonDocumentConverter

public RowToBsonDocumentConverter(StructType schema,
                                  WriteConfig.ConvertJson convertJson,
                                  boolean ignoreNulls)

Construct a new instance

Parameters:

schema - the schema for the row

convertJson - the convert Json configuration

ignoreNulls - if true ignore any null values, even those in arrays, maps or struct values

Method Detail

fromRow

public org.bson.BsonDocument fromRow(org.apache.spark.sql.catalyst.InternalRow row)

Converts a InternalRow to a BsonDocument

Parameters:

row - the internal row to convert

Returns:

a BsonDocument representing the data in the row

Throws:

DataException - if the Row is not convertable to a BsonDocument

fromRow

public org.bson.BsonDocument fromRow(Row row)

Converts a Row to a BsonDocument

Parameters:

row - the row to convert

Returns:

a BsonDocument representing the data in the row

Throws:

DataException - if the Row is not convertable to a BsonDocument

createObjectToBsonValue

public static RowToBsonDocumentConverter.ObjectToBsonValue createObjectToBsonValue(DataType dataType,
                                                                                   WriteConfig.ConvertJson convertJson,
                                                                                   boolean ignoreNulls)

Returns a conversion function that converts an object to a BsonValue

Parameters:

dataType - the data type of the object

convertJson - the string json conversion setting

ignoreNulls - true if ignoring null values

Returns:

a serializable function converts an object to a BsonValue