io.debezium.connector.cassandra

Class SchemaHolder

java.lang.Object

io.debezium.connector.cassandra.SchemaHolder

public class SchemaHolder
extends Object

Caches the key and value schema for all CDC-enabled tables. This cache gets updated by SchemaProcessor periodically.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SchemaHolder.KeyValueSchema

Field Summary

Fields

Modifier and Type	Field and Description
private CassandraClient	cassandraClient
private String	kafkaTopicPrefix
private static org.slf4j.Logger	LOGGER
private static String	NAMESPACE
private io.debezium.connector.SourceInfoStructMaker	sourceInfoStructMaker
private Map<KeyspaceTable,SchemaHolder.KeyValueSchema>	tableToKVSchemaMap

Constructor Summary

Constructors

Constructor and Description
SchemaHolder(CassandraClient cassandraClient, String kafkaTopicPrefix, io.debezium.connector.SourceInfoStructMaker sourceInfoStructMaker)

Method Summary

Modifier and Type	Method and Description
private void	createOrUpdateNewTableSchemas(Map<KeyspaceTable,com.datastax.driver.core.TableMetadata> latestTableMetadataMap)
Set<com.datastax.driver.core.TableMetadata>	getCdcEnabledTableMetadataSet()
static org.apache.kafka.connect.data.Schema	getFieldSchema(String fieldName, org.apache.kafka.connect.data.Schema schema) Get the schema of an inner field based on the field name
private Map<KeyspaceTable,com.datastax.driver.core.TableMetadata>	getLatestTableMetadatas()
SchemaHolder.KeyValueSchema	getOrUpdateKeyValueSchema(KeyspaceTable kt)
private void	refreshSchema(KeyspaceTable keyspaceTable)
void	refreshSchemas()
private void	removeDeletedTableSchemas(Map<KeyspaceTable,com.datastax.driver.core.TableMetadata> latestTableMetadataMap)

Methods inherited from class java.lang.Object

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

Field Detail

NAMESPACE

private static final String NAMESPACE

See Also:

Constant Field Values

LOGGER

private static final org.slf4j.Logger LOGGER

tableToKVSchemaMap

private final Map<KeyspaceTable,SchemaHolder.KeyValueSchema> tableToKVSchemaMap

cassandraClient

private final CassandraClient cassandraClient

kafkaTopicPrefix

private final String kafkaTopicPrefix

sourceInfoStructMaker

private final io.debezium.connector.SourceInfoStructMaker sourceInfoStructMaker

Constructor Detail

SchemaHolder

public SchemaHolder(CassandraClient cassandraClient,
                    String kafkaTopicPrefix,
                    io.debezium.connector.SourceInfoStructMaker sourceInfoStructMaker)

Method Detail

refreshSchemas

public void refreshSchemas()

getOrUpdateKeyValueSchema

public SchemaHolder.KeyValueSchema getOrUpdateKeyValueSchema(KeyspaceTable kt)

getCdcEnabledTableMetadataSet

public Set<com.datastax.driver.core.TableMetadata> getCdcEnabledTableMetadataSet()

getFieldSchema

public static org.apache.kafka.connect.data.Schema getFieldSchema(String fieldName,
                                                                  org.apache.kafka.connect.data.Schema schema)

Get the schema of an inner field based on the field name

Parameters:

fieldName - the name of the field in the schema

schema - the schema where the field resides in

Returns:

Schema

refreshSchema

private void refreshSchema(KeyspaceTable keyspaceTable)

getLatestTableMetadatas

private Map<KeyspaceTable,com.datastax.driver.core.TableMetadata> getLatestTableMetadatas()

removeDeletedTableSchemas

private void removeDeletedTableSchemas(Map<KeyspaceTable,com.datastax.driver.core.TableMetadata> latestTableMetadataMap)

createOrUpdateNewTableSchemas

private void createOrUpdateNewTableSchemas(Map<KeyspaceTable,com.datastax.driver.core.TableMetadata> latestTableMetadataMap)