Package com.snowflake.kafka.connector.internal.streaming

Class SchematizationUtils

java.lang.Object

com.snowflake.kafka.connector.internal.streaming.SchematizationUtils

public class SchematizationUtils
extends Object

This is a class containing the helper functions related to schematization

Constructor Summary

Constructors

Constructor	Description
SchematizationUtils()

Method Summary

Modifier and Type	Method	Description
static void	evolveSchemaIfNeeded(SnowflakeConnectionService conn, String tableName, List<String> nonNullableColumns, List<String> extraColNames, org.apache.kafka.connect.sink.SinkRecord record)	Execute a ALTER TABLE command if there is any extra column that needs to be added, or any column nullability that needs to be updated, used by schema evolution
static String	formatName(String objectName)	Transform the objectName to uppercase unless it is enclosed in double quotes

Methods inherited from class java.lang.Object

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

Constructor Detail

SchematizationUtils

public SchematizationUtils()

Method Detail

formatName

public static String formatName(String objectName)

Transform the objectName to uppercase unless it is enclosed in double quotes

In that case, drop the quotes and leave it as it is.

Parameters:

objectName - name of the snowflake object, could be tableName, columnName, roleName, etc.

Returns:

Transformed objectName

evolveSchemaIfNeeded

public static void evolveSchemaIfNeeded(@Nonnull
                                        SnowflakeConnectionService conn,
                                        String tableName,
                                        List<String> nonNullableColumns,
                                        List<String> extraColNames,
                                        org.apache.kafka.connect.sink.SinkRecord record)

Execute a ALTER TABLE command if there is any extra column that needs to be added, or any column nullability that needs to be updated, used by schema evolution

Parameters:

conn - connection to the Snowflake

tableName - table name

nonNullableColumns - a list of columns that needs to update the nullability

extraColNames - a list of columns that needs to be updated

record - the sink record that contains the schema and actual data