io.cdap.delta.store

Class DBReplicationStateStore

java.lang.Object

io.cdap.delta.store.DBReplicationStateStore

public class DBReplicationStateStore
extends Object

A StructuredTable based database table to store generic replicator states.

Field Summary

Fields

Modifier and Type	Field and Description
static io.cdap.cdap.spi.data.table.StructuredTableSpecification	TABLE_SPEC

Method Summary

Modifier and Type	Method and Description
Long	getLatestGeneration(String namespace, String appName)
byte[]	getStateData(DeltaWorkerId id, String state)
Collection<Integer>	getWorkerInstances(String namespace, String appName, Long generation)
void	writeStateData(DeltaWorkerId id, String state, byte[] data)

Methods inherited from class java.lang.Object

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

Field Detail

TABLE_SPEC

public static final io.cdap.cdap.spi.data.table.StructuredTableSpecification TABLE_SPEC

Method Detail

getStateData

public byte[] getStateData(DeltaWorkerId id,
                           String state)
                    throws IOException

Throws:

IOException

writeStateData

public void writeStateData(DeltaWorkerId id,
                           String state,
                           byte[] data)
                    throws IOException

Throws:

IOException

getLatestGeneration

public Long getLatestGeneration(String namespace,
                                String appName)
                         throws IOException

Throws:

IOException

getWorkerInstances

public Collection<Integer> getWorkerInstances(String namespace,
                                              String appName,
                                              Long generation)
                                       throws IOException

Throws:

IOException