ChannelId (Netty API Reference (4.2.1.Final))

All Superinterfaces:

java.lang.Comparable<ChannelId>, java.io.Serializable

All Known Implementing Classes:

DefaultChannelId
```
public interface ChannelId
extends java.io.Serializable, java.lang.Comparable<ChannelId>
```
Represents the globally unique identifier of a Channel.
The identifier is generated from various sources listed in the following:
- MAC address (EUI-48 or EUI-64) or the network adapter, preferably a globally unique one,
- the current process ID,
- System.currentTimeMillis(),
- System.nanoTime(),
- a random 32-bit integer, and
- a sequentially incremented 32-bit integer.
The global uniqueness of the generated identifier mostly depends on the MAC address and the current process ID, which are auto-detected at the class-loading time in best-effort manner. If all attempts to acquire them fail, a warning message is logged, and random values will be used instead. Alternatively, you can specify them manually via system properties:
- io.netty.machineId - hexadecimal representation of 48 (or 64) bit integer, optionally separated by colon or hyphen.
- io.netty.processId - an integer between 0 and 65535

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.lang.String`	`asLongText()`	Returns the long yet globally unique string representation of the `ChannelId`.
`java.lang.String`	`asShortText()`	Returns the short but globally non-unique string representation of the `ChannelId`.

Methods inherited from interface java.lang.Comparable
compareTo

- Method Detail
  - asShortText
```
java.lang.String asShortText()
```
    Returns the short but globally non-unique string representation of the ChannelId.
  - asLongText
```
java.lang.String asLongText()
```
    Returns the long yet globally unique string representation of the ChannelId.