io.smallrye.reactive.messaging.mqtt.session.impl.SessionEventImpl Maven / Gradle / Ivy

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package io.smallrye.reactive.messaging.mqtt.session.impl;

import io.smallrye.reactive.messaging.mqtt.session.SessionEvent;
import io.smallrye.reactive.messaging.mqtt.session.SessionState;

/**
 * An event of a session state change.
 */
public class SessionEventImpl implements SessionEvent {

    private final SessionState sessionState;
    private final Throwable cause;

    public SessionEventImpl(final SessionState sessionState, final Throwable reason) {
        this.sessionState = sessionState;
        this.cause = reason;
    }

    /**
     * The new state of the session.
     *
     * @return The state.
     */
    @Override
    public SessionState getSessionState() {
        return this.sessionState;
    }

    /**
     * The (optional) cause of change.
     *
     * @return The throwable that causes the state change, or {@code null}, if there was none.
     */
    @Override
    public Throwable getCause() {
        return this.cause;
    }
}