Add the Visitor<T> interface.

css4j · Dec 17, 2020 · cecf127 · cecf127
1 parent 692fa2f
commit cecf127
Showing 1 changed file with 28 additions and 0 deletions.
diff --git a/src/io/sf/carte/util/Visitor.java b/src/io/sf/carte/util/Visitor.java
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+/*
+
+ Copyright (c) 2005-2020, Carlos Amengual.
+
+ SPDX-License-Identifier: BSD-3-Clause
+
+ Licensed under a BSD-style License. You can find the license here:
+ https://css4j.github.io/LICENSE.txt
+
+ */
+
+package io.sf.carte.util;
+
+/**
+ * A visitor (from the 'visitor' pattern).
+ * 
+ * @param <T> the type to visit.
+ */
+public interface Visitor<T> {
+
+	/**
+	 * Visit the given object.
+	 * 
+	 * @param arg the object.
+	 */
+	void visit(T arg);
+
+}