Class ApplicationContext

java/org/apache/catalina/core/ApplicationContext.java:86–1229

Standard implementation of ServletContext that represents a web application's execution environment. An instance of this class is associated with each instance of StandardContext .

 * instance of this class is associated with each instance of <code>StandardContext</code>.
 */
public class ApplicationContext implements ServletContext {

    // ----------------------------------------------------------- Constructors

    /**
     * Construct a new instance of this class, associated with the specified Context instance.
     *
     * @param context The associated Context instance
     */
    public ApplicationContext(StandardContext context) {
        super();
        this.context = context;
        this.service = Container.getService(context);
        this.sessionCookieConfig = new ApplicationSessionCookieConfig(context);

        // Populate session tracking modes
        populateSessionTrackingModes();
    }


    // ----------------------------------------------------- Instance Variables


    /**
     * The context attributes for this context.
     */
    protected Map<String,Object> attributes = new ConcurrentHashMap<>();


    /**
     * List of read only attributes for this context.
     */
    private final Map<String,String> readOnlyAttributes = new ConcurrentHashMap<>();


    /**
     * The Context instance with which we are associated.
     */
    private final StandardContext context;


    /**
     * The Service instance with which we are associated.
     */
    private final Service service;


    /**
     * The facade around this object.
     */
    private final ServletContext facade = new ApplicationContextFacade(this);


    /**
     * The merged context initialization parameters for this Context.
     */
    private final Map<String,String> parameters = new ConcurrentHashMap<>();