io.debezium.data

Class KeyValueStore

java.lang.Object

io.debezium.data.KeyValueStore

public class KeyValueStore
extends Object

A test utility for accumulating the SourceRecords that represent change events on rows. This store applies the changes and maintains the current state of the rows.

Author:

Randall Hauch

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	KeyValueStore.Collection

Field Summary

Fields

Modifier and Type	Field and Description
private Map<io.debezium.relational.TableId,KeyValueStore.Collection>	collectionsByTableId
private List<org.apache.kafka.connect.source.SourceRecord>	sourceRecords
private Function<String,io.debezium.relational.TableId>	tableIdFromTopic

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	KeyValueStore(Function<String,io.debezium.relational.TableId> tableIdFromTopic)

Method Summary

Modifier and Type	Method and Description
void	add(org.apache.kafka.connect.source.SourceRecord record)
KeyValueStore.Collection	collection(String fullyQualifiedName)
KeyValueStore.Collection	collection(String catalog, String tableName)
KeyValueStore.Collection	collection(io.debezium.relational.TableId tableId)
int	collectionCount()
Set<io.debezium.relational.TableId>	collections()
static KeyValueStore	createForTopicsBeginningWith(String prefix) Create a KeyValueStore that removes from the topic names the supplied prefix to obtain the TableId.
static KeyValueStore	createForTopicsMatching(String regex, int groupNumber) Create a KeyValueStore that uses the supplied regular expression and group number to extract the TableId from the topic name.
Set<String>	databases()
protected static Function<String,io.debezium.relational.TableId>	fromRegex(String regex, int groupNumber)
KeyValueStore.Collection	getOrCreate(io.debezium.relational.TableId tableId)
protected static org.apache.kafka.connect.data.Struct	keyFor(org.apache.kafka.connect.source.SourceRecord record)
protected static Function<String,io.debezium.relational.TableId>	prefixedWith(String prefix)
protected static org.apache.kafka.connect.data.Struct	sourceFor(org.apache.kafka.connect.source.SourceRecord record)
List<org.apache.kafka.connect.source.SourceRecord>	sourceRecords()
protected static org.apache.kafka.connect.data.Struct	valueFor(org.apache.kafka.connect.source.SourceRecord record)

Methods inherited from class java.lang.Object

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

Field Detail

sourceRecords

private final List<org.apache.kafka.connect.source.SourceRecord> sourceRecords

collectionsByTableId

private final Map<io.debezium.relational.TableId,KeyValueStore.Collection> collectionsByTableId

tableIdFromTopic

private final Function<String,io.debezium.relational.TableId> tableIdFromTopic

Constructor Detail

KeyValueStore

protected KeyValueStore(Function<String,io.debezium.relational.TableId> tableIdFromTopic)

Method Detail

prefixedWith

protected static Function<String,io.debezium.relational.TableId> prefixedWith(String prefix)

fromRegex

protected static Function<String,io.debezium.relational.TableId> fromRegex(String regex,
                                                                           int groupNumber)

createForTopicsMatching

public static KeyValueStore createForTopicsMatching(String regex,
                                                    int groupNumber)

Create a KeyValueStore that uses the supplied regular expression and group number to extract the TableId from the topic name.

Parameters:

regex - the regular expression that identifies the table ID within the topic name; may not be null

groupNumber - the group number in the regex for the table ID string

Returns:

the key value store

createForTopicsBeginningWith

public static KeyValueStore createForTopicsBeginningWith(String prefix)

Create a KeyValueStore that removes from the topic names the supplied prefix to obtain the TableId.

Parameters:

prefix - the prefix after which all of the topic name forms the table ID; may not be null

Returns:

the key value store

add

public void add(org.apache.kafka.connect.source.SourceRecord record)

sourceRecords

public List<org.apache.kafka.connect.source.SourceRecord> sourceRecords()

collection

public KeyValueStore.Collection collection(String fullyQualifiedName)

collection

public KeyValueStore.Collection collection(String catalog,
                                           String tableName)

collection

public KeyValueStore.Collection collection(io.debezium.relational.TableId tableId)

collections

public Set<io.debezium.relational.TableId> collections()

databases

public Set<String> databases()

collectionCount

public int collectionCount()

getOrCreate

public KeyValueStore.Collection getOrCreate(io.debezium.relational.TableId tableId)

keyFor

protected static org.apache.kafka.connect.data.Struct keyFor(org.apache.kafka.connect.source.SourceRecord record)

valueFor

protected static org.apache.kafka.connect.data.Struct valueFor(org.apache.kafka.connect.source.SourceRecord record)

sourceFor

protected static org.apache.kafka.connect.data.Struct sourceFor(org.apache.kafka.connect.source.SourceRecord record)