org.jgrapes.core

Interface Eligible

All Known Subinterfaces:

Channel, Channel.Default, IOSubchannel, Self, Subchannel, TcpChannel

All Known Implementing Classes:

Accepted, ActionEvent, Attached, ClassChannel, Close, Closed, CompletionEvent, Component, ComponentCollector, ComponentProxy, ComponentVertex, ConfigurationUpdate, Connected, ConnectError, Detached, DiscardSession, Error, Event, EventBase, FileOpened, FileStorage, FreeMarkerRequestHandler, HalfClosed, Handler.NoChannel, Handler.NoEvent, HandlingError, HostUnresolved, HttpConnected, HttpConnector, HttpServer, InitialPreferences, InMemorySessionManager, Input, InputStreamMonitor, IOError, IOEvent, IOSubchannel.DefaultIOSubchannel, JsonConfigurationStore, KeyValueStoreData, KeyValueStoreQuery, KeyValueStoreUpdate, LanguageSelector, LinkedIOSubchannel, MessageReceived, NamedChannel, NamedEvent, NioDispatcher, NioRegistration, NioRegistration.Completed, Opened, OpenTcpConnection, Output, PreferencesStore, ProtocolSwitchAccepted, Purge, PurgeTerminator, Ready, Request, Request.In, Request.In.Completed, Request.In.Connect, Request.In.Delete, Request.In.Get, Request.In.Head, Request.In.Options, Request.In.Post, Request.In.Put, Request.In.Trace, Request.Out, Request.Out.Connect, Request.Out.Delete, Request.Out.Get, Request.Out.Head, Request.Out.Options, Request.Out.Post, Request.Out.Put, Request.Out.Trace, Response, SaveInput, SaveOutput, SessionManager, SslCodec, Start, Started, StaticContentDispatcher, Stop, StreamFile, Subchannel.DefaultSubchannel, TcpConnectionManager, TcpConnectionManager.TcpChannelImpl, TcpConnector, TcpServer, Upgraded, WebSocketClose

public interface Eligible

This interface provides a mechanism for matching objects, using a filter on the object’s “kind” as criterion. How the kind is represented depends completely on the class that implements this interface.

Every instance of a class that implement this interface must provide a default criterion (filter) that accepts the instance (though, of course, not only this particular instance). Formally: for every instance “obj” of Eligible, the expression obj.isEligibleFor(obj.getDefaultCrtiterion()) must return true.

The default criterion can therefore be interpreted as the representation of the kind of the object.

Method Summary

Modifier and Type	Method and Description
Object	defaultCriterion() Returns a sample criterion that this Eligible meets.
boolean	isEligibleFor(Object criterion) Returns true if this Eligible is met by the provided criterion.

Method Detail

isEligibleFor

boolean isEligibleFor(Object criterion)

Returns true if this Eligible is met by the provided criterion.

Parameters:

criterion - the criterion

Returns:

true if this meets the criterion

defaultCriterion

Object defaultCriterion()

Returns a sample criterion that this Eligible meets.

Returns:

the criterion