DiagnosticEvent (apache-cassandra API)

java.lang.Object
- org.apache.cassandra.diag.DiagnosticEvent

Direct Known Subclasses:

AuditEvent, GossiperEvent, SchemaEvent, TokenMetadataEvent
```
public abstract class DiagnosticEvent
extends java.lang.Object
```
Base class for internally emitted events used for diagnostics and testing.

Field Summary

Fields
Modifier and Type Field Description

java.lang.String threadName
Name of allocating thread.

long timestamp
Event creation time.

Constructor Summary

Constructors
Constructor Description

DiagnosticEvent()

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`abstract java.lang.Enum<?>`	`getType()`	Returns event type discriminator.
`abstract java.util.Map<java.lang.String,java.io.Serializable>`	`toMap()`	Returns map of key-value pairs containing relevant event details.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - timestamp
```
public final long timestamp
```
    Event creation time.
  - threadName
```
public final java.lang.String threadName
```
    Name of allocating thread.
- Constructor Detail
  - DiagnosticEvent
```
public DiagnosticEvent()
```
- Method Detail
  - getType
```
public abstract java.lang.Enum<?> getType()
```
    Returns event type discriminator. This will usually be a enum value.
  - toMap
```
public abstract java.util.Map<java.lang.String,java.io.Serializable> toMap()
```
    Returns map of key-value pairs containing relevant event details. Values can be complex objects like other maps, but must be Serializable, as returned values may be consumed by external clients. It's strongly recommended to stick to standard Java classes to avoid distributing custom classes to clients and also prevent potential class versioning conflicts.