Table of Contents

Class StandbyUpdateListener

Namespace
Org.Apache.Kafka.Streams.Processor
Assembly
MASES.KNet.dll
public class StandbyUpdateListener : JVMBridgeListener, IDynamicMetaObjectProvider, IJVMBridgeCore, IEquatable<IJVMBridgeBaseInstance>, IDisposable, IJVMBridgeBaseStatic, IJVMBridgeBase, IJVMBridgeBaseInstance, IJVMBridgeDefinition, IStandbyUpdateListener
Inheritance
StandbyUpdateListener
Implements
Derived

Constructors

StandbyUpdateListener(IJVMBridgeBaseInitializer)

Initializer used internally by JCOBridge. Do not use directly.

[Obsolete("This public initializer is needed for JCOBridge internal use, other uses can produce unidentifiable behaviors.")]
public StandbyUpdateListener(IJVMBridgeBaseInitializer initializer)

Parameters

initializer IJVMBridgeBaseInitializer

StandbyUpdateListener(params object[])

Generic constructor used by JCOBridge when a derived class needs to forward arguments to the base JVMBridgeBase class.

public StandbyUpdateListener(params object[] args)

Parameters

args object[]

Properties

BridgeClassName

Java class name to be instantiated

public override string BridgeClassName { get; }

Property Value

string

OnOnBatchLoaded

public Action<TopicPartition, String, TaskId, long, long, long> OnOnBatchLoaded { get; set; }

Property Value

Action<TopicPartition, String, TaskId, long, long, long>

Remarks

Assign a delegate to handle the event without subclassing. If both this handler and a virtual method override are present, the delegate takes precedence. Set to null to delegate to the virtual method.

OnOnUpdateStart

public Action<TopicPartition, String, long> OnOnUpdateStart { get; set; }

Property Value

Action<TopicPartition, String, long>

Remarks

Assign a delegate to handle the event without subclassing. If both this handler and a virtual method override are present, the delegate takes precedence. Set to null to delegate to the virtual method.

OnOnUpdateSuspended

public Action<TopicPartition, String, long, long, StandbyUpdateListener.SuspendReason> OnOnUpdateSuspended { get; set; }

Property Value

Action<TopicPartition, String, long, long, StandbyUpdateListener.SuspendReason>

Remarks

Assign a delegate to handle the event without subclassing. If both this handler and a virtual method override are present, the delegate takes precedence. Set to null to delegate to the virtual method.

Methods

InitializeHandlers(Type)

Handlers initializer for StandbyUpdateListener

protected virtual void InitializeHandlers(Type listenerRuntimeType)

Parameters

listenerRuntimeType Type

ListenerShallManageEvent(int)

Invoked from the JVMBridgeListener on each received event to notify the user which can decide to abort the execution for the specific event returning false

protected override bool ListenerShallManageEvent(int eventIndex)

Parameters

eventIndex int

The index of the event triggered as returned from AddEventHandler(string, EventHandler) or AddEventHandler<TDataClass>(string, EventHandler<CLRListenerEventArgs<TDataClass>>)

Returns

bool

Returns true to continue event evaluation, false to return the control to the JVM

Remarks

By default every event continues the execution and reads the data from JVM; this implies an extra cost which can be limited using ListenerShallManageEvent(int) or the ListenerShallManageEventIndex/ListenerShallManageEventName handlers. Returning false the control is immediately returned to the JVM, anyway the user has received the notification. It can be useful in scenarios where the user is interested in few events and the other are simply discarded to optimize the execution speed. By default, this function invokes ListenerShallManageEventIndex, then try ListenerShallManageEventName if they are set or return true

ListenerShallManageEventHandlers(int)

protected virtual bool ListenerShallManageEventHandlers(int eventIndex)

Parameters

eventIndex int

Returns

bool

OnBatchLoaded(TopicPartition, String, TaskId, long, long, long)

public virtual void OnBatchLoaded(TopicPartition arg0, String arg1, TaskId arg2, long arg3, long arg4, long arg5)

Parameters

arg0 TopicPartition

TopicPartition

arg1 String

String

arg2 TaskId

TaskId

arg3 long

long

arg4 long

long

arg5 long

long

OnUpdateStart(TopicPartition, String, long)

public virtual void OnUpdateStart(TopicPartition arg0, String arg1, long arg2)

Parameters

arg0 TopicPartition

TopicPartition

arg1 String

String

arg2 long

long

OnUpdateSuspended(TopicPartition, String, long, long, SuspendReason)

public virtual void OnUpdateSuspended(TopicPartition arg0, String arg1, long arg2, long arg3, StandbyUpdateListener.SuspendReason arg4)

Parameters

arg0 TopicPartition

TopicPartition

arg1 String

String

arg2 long

long

arg3 long

long

arg4 StandbyUpdateListener.SuspendReason

StandbyUpdateListener.SuspendReason