org.eclipse.xtext.web.server

Interface ISession

All Known Implementing Classes:

ISession.NullImpl

public interface ISession

Provides means to store information that can be accessed for subsequent requests. This allows to improve the server performance by avoiding duplicate computations, and to share resources across multiple service requests.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	ISession.NullImpl A default implementation that stores nothing.

Method Summary

Modifier and Type	Method and Description
<T> T	get(java.lang.Object key) Get the stored information for the given key.
<T> T	get(java.lang.Object key, org.eclipse.xtext.xbase.lib.Functions.Function0<? extends T> factory) Get the stored information for the given key, creating it if it is not present yet.
void	put(java.lang.Object key, java.lang.Object value) Add the given information to this session store, overwriting any previously stored information for that key.
void	remove(java.lang.Object key) Remove the information stored with the given key.

Method Detail

get

<T> T get(java.lang.Object key)

Get the stored information for the given key. Returns null if nothing is associated with that key.

get

<T> T get(java.lang.Object key,
          org.eclipse.xtext.xbase.lib.Functions.Function0<? extends T> factory)

Get the stored information for the given key, creating it if it is not present yet. The check for presence of the information and the invocation of the factory are done in an atomic block, thus the session store may be accessed from multiple threads.

put

void put(java.lang.Object key,
         java.lang.Object value)

Add the given information to this session store, overwriting any previously stored information for that key.

remove

void remove(java.lang.Object key)

Remove the information stored with the given key.