Package org.eclipse.aether

Class DefaultSessionData

java.lang.Object

org.eclipse.aether.DefaultSessionData

All Implemented Interfaces:

SessionData

public final class DefaultSessionData
extends Object
implements SessionData

A simple session data storage backed by a thread-safe map.

Constructor Summary

Constructors

Constructor	Description
DefaultSessionData()

Method Summary

Modifier and Type	Method	Description
Object	computeIfAbsent(Object key, Supplier<Object> supplier)	Retrieve of compute the data associated with the specified key.
Object	get(Object key)	Gets the session data associated with the specified key.
void	set(Object key, Object value)	Associates the specified session data with the given key.
boolean	set(Object key, Object oldValue, Object newValue)	Associates the specified session data with the given key if the key is currently mapped to the given value.

Methods inherited from class java.lang.Object

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

Constructor Details

DefaultSessionData

public DefaultSessionData()

Method Details

set

public void set(Object key,
 Object value)

Description copied from interface: SessionData

Associates the specified session data with the given key.

Specified by:

set in interface SessionData

Parameters:

key - The key under which to store the session data, must not be null.

value - The data to associate with the key, may be null to remove the mapping.

set

public boolean set(Object key,
 Object oldValue,
 Object newValue)

Description copied from interface: SessionData

Associates the specified session data with the given key if the key is currently mapped to the given value. This method provides an atomic compare-and-update of some key's value.

Specified by:

set in interface SessionData

Parameters:

key - The key under which to store the session data, must not be null.

oldValue - The expected data currently associated with the key, may be null.

newValue - The data to associate with the key, may be null to remove the mapping.

Returns:

true if the key mapping was successfully updated from the old value to the new value, false if the current key mapping didn't match the expected value and was not updated.

get

public Object get(Object key)

Description copied from interface: SessionData

Gets the session data associated with the specified key.

Specified by:

get in interface SessionData

Parameters:

key - The key for which to retrieve the session data, must not be null.

Returns:

The session data associated with the key or null if none.

computeIfAbsent

public Object computeIfAbsent(Object key,
 Supplier<Object> supplier)

Description copied from interface: SessionData

Retrieve of compute the data associated with the specified key.

Specified by:

computeIfAbsent in interface SessionData

Parameters:

key - The key for which to retrieve the session data, must not be null.

supplier - The supplier will compute the new value.

Returns:

The session data associated with the key.