50 lines
1.2 KiB
Java
50 lines
1.2 KiB
Java
package envoy.event;
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import java.io.Serializable;
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/**
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* Project: <strong>envoy-common</strong><br>
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* File: <strong>Event.java</strong><br>
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* Created: <strong>04.12.2019</strong><br>
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*
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* @author Kai S. K. Engelbart
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* @param <T> the type of the Event
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* @since Envoy v0.2-alpha
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*/
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public abstract class Event<T> implements Serializable {
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protected final T value;
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private static final long serialVersionUID = 0L;
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protected Event(T value) { this.value = value; }
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/**
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* @return the data associated with this event
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*/
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public T get() { return value; }
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@Override
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public String toString() { return String.format("%s[value=%s]", this.getClass().getSimpleName(), value); }
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/**
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* Serves as a super class for events that do not carry a value.<br>
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* <br>
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* Project: <strong>envoy-common</strong><br>
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* File: <strong>Event.java</strong><br>
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* Created: <strong>11 Feb 2020</strong><br>
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*
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* @author Kai S. K. Engelbart
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* @since Envoy Common v0.2-alpha
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*/
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public static abstract class Valueless extends Event<Void> {
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private static final long serialVersionUID = 0L;
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protected Valueless() { super(null); }
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@Override
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public String toString() { return this.getClass().getSimpleName(); }
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}
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}
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