com.illumon.iris.db.v2

Class InstrumentedListenerAdapter

java.lang.Object

com.illumon.iris.db.v2.InstrumentedListener

com.illumon.iris.db.v2.InstrumentedListenerAdapter

All Implemented Interfaces:

com.fishlib.base.log.LogOutputAppendable, NotificationQueue.Dependency, Listener

Direct Known Subclasses:

ReverseLookupListener

public abstract class InstrumentedListenerAdapter
extends InstrumentedListener

This class is used for Listeners that represent "leaf" nodes in the update propagation tree. It provides an optional retention cache, to prevent listeners from being garbage collected. For creating internally ticking table nodes, instead use BaseTable.ListenerImpl

Nested Class Summary

Nested classes/interfaces inherited from class com.illumon.iris.db.v2.InstrumentedListener

InstrumentedListener.ErrorNotification, InstrumentedListener.Notification

Field Summary

Fields

Modifier and Type	Field and Description
protected DynamicTable	source

Constructor Summary

Constructors

Constructor and Description
InstrumentedListenerAdapter(DynamicTable source) Create an instrumented listener for source.
InstrumentedListenerAdapter(String description, DynamicTable source) Create an instrumented listener for source.
InstrumentedListenerAdapter(String description, DynamicTable source, boolean retain)

Method Summary

Modifier and Type	Method and Description
void	onFailureInternal(Throwable originalException, UpdatePerformanceTracker.Entry sourceEntry) Called when the source table produces an error
abstract void	onUpdate(Index added, Index removed, Index modified) Process notification of table changes.

Methods inherited from class com.illumon.iris.db.v2.InstrumentedListener

append, getEntry, getErrorNotification, getNotification, onFailure, satisfied, setInitialImage, setVerboseLogging

Methods inherited from class java.lang.Object

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

Field Detail

source

@ReferentialIntegrity
protected final DynamicTable source

Constructor Detail

InstrumentedListenerAdapter

public InstrumentedListenerAdapter(DynamicTable source)

Create an instrumented listener for source. The listener will be retained and no description is provided.

Parameters:

source - The source table this listener will subscribe to - needed for preserving referential integrity.

InstrumentedListenerAdapter

public InstrumentedListenerAdapter(@Nullable
                                   String description,
                                   DynamicTable source)

Create an instrumented listener for source. The listener will be retained and no description is provided.

Parameters:

description - A description for the UpdatePerformanceTracker to append to its entry description.

source - The source table this listener will subscribe to - needed for preserving referential integrity.

InstrumentedListenerAdapter

public InstrumentedListenerAdapter(@Nullable
                                   String description,
                                   DynamicTable source,
                                   boolean retain)

Parameters:

description - A description for the UpdatePerformanceTracker to append to its entry description.

source - The source table this listener will subscribe to - needed for preserving referential integrity.

retain - Whether a hard reference to this listener should be maintained to prevent it from being collected.

Method Detail

onUpdate

public abstract void onUpdate(Index added,
                              Index removed,
                              Index modified)

Description copied from interface: Listener

Process notification of table changes.

Specified by:

onUpdate in interface Listener

Specified by:

onUpdate in class InstrumentedListener

Parameters:

added - rows added

removed - rows removed

modified - rows modified

onFailureInternal

public void onFailureInternal(Throwable originalException,
                              UpdatePerformanceTracker.Entry sourceEntry)

Called when the source table produces an error

Specified by:

onFailureInternal in class InstrumentedListener

Parameters:

originalException - the original throwable that caused this error

sourceEntry - the performance tracker entry that was active when the error occurred