Package org.axonframework.eventsourcing.eventstore

Class GlobalIndexPosition

java.lang.Object

org.axonframework.eventsourcing.eventstore.GlobalIndexPosition

All Implemented Interfaces:

Position

public final class GlobalIndexPosition
extends Object
implements Position

An immutable implementation of Position which represents positions with an index in the global event stream.

Since:

5.0.0

Author:

John Hendrikx

Field Summary

Fields inherited from interface org.axonframework.eventsourcing.eventstore.Position

START

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
int	hashCode()
Position	min(Position other)	Returns the smallest of the two positions.
static long	toIndex(Position position)	Converts the given position to a global index, if possible.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Details

toIndex

public static long toIndex(@Nonnull
 Position position)

Converts the given position to a global index, if possible.

Parameters:

position - A position, cannot be null.

Returns:

A global index.

Throws:

NullPointerException - When any argument is null.

IllegalArgumentException - When the given position could not be converted.

min

@Nonnull
public Position min(@Nonnull
 Position other)

Description copied from interface: Position

Returns the smallest of the two positions. If one of the positions is Position.START, this function will always return this value. Implementors must ensure this operation is symmetric, and so should always return Position.START when called with it.

Specified by:

min in interface Position

Parameters:

other - Another position, cannot be null.

Returns:

The smallest of the two positions, never null.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object