com.github.f4b6a3.uuid.nodeid

Class DefaultNodeIdentifierStrategy

java.lang.Object

com.github.f4b6a3.uuid.nodeid.DefaultNodeIdentifierStrategy

All Implemented Interfaces:

NodeIdentifierStrategy

public class DefaultNodeIdentifierStrategy
extends Object
implements NodeIdentifierStrategy

Field Summary

Fields

Modifier and Type	Field and Description
protected long	nodeIdentifier

Constructor Summary

Constructors

Constructor and Description
DefaultNodeIdentifierStrategy() This constructor works in two steps: 1.

Method Summary

Modifier and Type	Method and Description
long	getNodeIdentifier() Get the node identifier.

Methods inherited from class java.lang.Object

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

Field Detail

nodeIdentifier

protected long nodeIdentifier

Constructor Detail

DefaultNodeIdentifierStrategy

public DefaultNodeIdentifierStrategy()

This constructor works in two steps: 1. Check if there's a preferred node identifier set in a system property or environment variable; 2. If no preferred node identifier exists, calculate a node identifier based on system data like: operating system, java virtual machine, network details and system resources. See SystemDataUtil.getSystemId(String).

Method Detail

getNodeIdentifier

public long getNodeIdentifier()

Get the node identifier. The node identifier in this library is calculated using system data. The resulting node identifier is as unique and mutable as the host machine. If the calculated node identifier is not desired, you can override this by setting a preferred node identifier via system property or environment variable. See SystemDataUtil.getSystemId(String).

Specified by:

getNodeIdentifier in interface NodeIdentifierStrategy