Package io.debezium.connector.jdbc.dialect.mysql

Class MySqlDatabaseDialect

java.lang.Object

io.debezium.connector.jdbc.dialect.GeneralDatabaseDialect

io.debezium.connector.jdbc.dialect.mysql.MySqlDatabaseDialect

All Implemented Interfaces:

DatabaseDialect

Direct Known Subclasses:

MariaDbDatabaseDialect

public class MySqlDatabaseDialect
extends GeneralDatabaseDialect

A DatabaseDialect implementation for MySQL.

Author:

Chris Cranford

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MySqlDatabaseDialect.MySqlDatabaseDialectProvider

Field Summary

Fields

Modifier and Type	Field	Description
private final boolean	connectionTimeZoneSet
private static final DateTimeFormatter	ISO_LOCAL_DATE_TIME_WITH_SPACE
private static final List<String>	NO_DEFAULT_VALUE_TYPES

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MySqlDatabaseDialect(JdbcSinkConnectorConfig config, org.hibernate.SessionFactory sessionFactory)

Method Summary

Modifier and Type	Method	Description
protected void	addColumnDefaultValue(SinkRecordDescriptor.FieldDescriptor field, StringBuilder columnSpec)
String	getAlterTablePrefix()	Gets the prefix used before adding column-clauses in ALTER TABLE statements.
protected Optional<String>	getDatabaseTimeZoneQuery()
protected String	getDatabaseTimeZoneQueryResult(ResultSet rs)
String	getFormattedDateTime(TemporalAccessor value)	Format a date and time.
String	getFormattedTime(TemporalAccessor value)	Format a time.
String	getFormattedTimestamp(TemporalAccessor value)	Format a timestamp.
String	getFormattedTimestampWithTimeZone(String value)	Format a timestamp with time zone.
int	getMaxVarcharLengthInKey()	Gets the maximum length of a VARCHAR field in a primary key column.
String	getUpsertStatement(TableDescriptor table, SinkRecordDescriptor record)	Construct a UPSERT statement specific for this dialect.
boolean	isTimeZoneSet()	Returns whether the user has specified a time zone JDBC property or whether the connector configuration property database.time_zone has been specified.
protected void	registerTypes()
boolean	shouldBindTimeWithTimeZoneAsDatabaseTimeZone()	Returns whether a time with time zone details be bound using the database time zone.

Methods inherited from class io.debezium.connector.jdbc.dialect.GeneralDatabaseDialect

bindValue, columnNameFromField, columnNameFromField, columnQueryBindingFromField, getAlterTableColumnDelimiter, getAlterTableColumnPrefix, getAlterTableColumnSuffix, getAlterTableStatement, getAlterTableSuffix, getByteArrayFormat, getColumnNamingStrategy, getConfig, getCreateTableStatement, getDatabaseTimeZone, getDatabaseVersion, getDefaultDecimalPrecision, getDefaultTimestampPrecision, getDeleteStatement, getFormattedBoolean, getFormattedDate, getFormattedDateTimeWithNanos, getFormattedTimeWithTimeZone, getIdentifierHelper, getInsertStatement, getMaxNVarcharLengthInKey, getMaxVarbinaryLength, getQualifiedTableName, getQueryBindingWithValueCast, getSchemaType, getTableId, getTruncateStatement, getTypeName, getTypeName, getTypeName, getUpdateStatement, getVersion, isIdentifierUppercaseWhenNotQuoted, isNegativeScaleAllowed, readTable, registerType, resolveColumnName, resolveColumnNameFromField, resolveMissingFields, tableExists, toIdentifier, toIdentifier

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.debezium.connector.jdbc.dialect.DatabaseDialect

getMaxTimePrecision, getMaxTimestampPrecision, getTimeQueryBinding

Field Details

NO_DEFAULT_VALUE_TYPES

private static final List<String> NO_DEFAULT_VALUE_TYPES

ISO_LOCAL_DATE_TIME_WITH_SPACE

private static final DateTimeFormatter ISO_LOCAL_DATE_TIME_WITH_SPACE

connectionTimeZoneSet

private final boolean connectionTimeZoneSet

Constructor Details

MySqlDatabaseDialect

protected MySqlDatabaseDialect(JdbcSinkConnectorConfig config,
 org.hibernate.SessionFactory sessionFactory)

Method Details

getDatabaseTimeZoneQuery

protected Optional<String> getDatabaseTimeZoneQuery()

Overrides:

getDatabaseTimeZoneQuery in class GeneralDatabaseDialect

getDatabaseTimeZoneQueryResult

protected String getDatabaseTimeZoneQueryResult(ResultSet rs)
                                         throws SQLException

Overrides:

getDatabaseTimeZoneQueryResult in class GeneralDatabaseDialect

Throws:

SQLException

isTimeZoneSet

public boolean isTimeZoneSet()

Description copied from interface: DatabaseDialect

Returns whether the user has specified a time zone JDBC property or whether the connector configuration property database.time_zone has been specified.

Specified by:

isTimeZoneSet in interface DatabaseDialect

Overrides:

isTimeZoneSet in class GeneralDatabaseDialect

Returns:

true if the properties have been specified; false otherwise.

shouldBindTimeWithTimeZoneAsDatabaseTimeZone

public boolean shouldBindTimeWithTimeZoneAsDatabaseTimeZone()

Description copied from interface: DatabaseDialect

Returns whether a time with time zone details be bound using the database time zone.

Specified by:

shouldBindTimeWithTimeZoneAsDatabaseTimeZone in interface DatabaseDialect

Overrides:

shouldBindTimeWithTimeZoneAsDatabaseTimeZone in class GeneralDatabaseDialect

Returns:

true if the value should be shifted; false otherwise (the default).

registerTypes

protected void registerTypes()

Overrides:

registerTypes in class GeneralDatabaseDialect

getMaxVarcharLengthInKey

public int getMaxVarcharLengthInKey()

Description copied from interface: DatabaseDialect

Gets the maximum length of a VARCHAR field in a primary key column.

Specified by:

getMaxVarcharLengthInKey in interface DatabaseDialect

Overrides:

getMaxVarcharLengthInKey in class GeneralDatabaseDialect

Returns:

maximum varchar field length when participating in the primary key

getFormattedTime

public String getFormattedTime(TemporalAccessor value)

Description copied from interface: DatabaseDialect

Format a time.

Specified by:

getFormattedTime in interface DatabaseDialect

Overrides:

getFormattedTime in class GeneralDatabaseDialect

Parameters:

value - the value to be formatted, never null

Returns:

the formatted string value

getFormattedDateTime

public String getFormattedDateTime(TemporalAccessor value)

Description copied from interface: DatabaseDialect

Format a date and time.

Specified by:

getFormattedDateTime in interface DatabaseDialect

Overrides:

getFormattedDateTime in class GeneralDatabaseDialect

Parameters:

value - the value to be formatted, never null

Returns:

the formatted string value

getFormattedTimestamp

public String getFormattedTimestamp(TemporalAccessor value)

Description copied from interface: DatabaseDialect

Format a timestamp.

Specified by:

getFormattedTimestamp in interface DatabaseDialect

Overrides:

getFormattedTimestamp in class GeneralDatabaseDialect

Parameters:

value - the value to be formatted, never null

Returns:

the formatted string value

getFormattedTimestampWithTimeZone

public String getFormattedTimestampWithTimeZone(String value)

Description copied from interface: DatabaseDialect

Format a timestamp with time zone.

Specified by:

getFormattedTimestampWithTimeZone in interface DatabaseDialect

Overrides:

getFormattedTimestampWithTimeZone in class GeneralDatabaseDialect

Parameters:

value - the value to be formatted, never null

Returns:

the formatted string value.

getAlterTablePrefix

public String getAlterTablePrefix()

Description copied from interface: DatabaseDialect

Gets the prefix used before adding column-clauses in ALTER TABLE statements.

Specified by:

getAlterTablePrefix in interface DatabaseDialect

Overrides:

getAlterTablePrefix in class GeneralDatabaseDialect

Returns:

the alter table column-clauses prefix

getUpsertStatement

public String getUpsertStatement(TableDescriptor table,
 SinkRecordDescriptor record)

Description copied from interface: DatabaseDialect

Construct a UPSERT statement specific for this dialect.

Specified by:

getUpsertStatement in interface DatabaseDialect

Overrides:

getUpsertStatement in class GeneralDatabaseDialect

Parameters:

table - the current relational table model, should not be null

record - the current sink record being processed, should not be null

Returns:

the upsert SQL statement to be executed, never null

addColumnDefaultValue

protected void addColumnDefaultValue(SinkRecordDescriptor.FieldDescriptor field,
 StringBuilder columnSpec)

Overrides:

addColumnDefaultValue in class GeneralDatabaseDialect