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Diffstat (limited to 'bundles/org.eclipse.osgi.util/src/org/osgi/util/function/Callback.java')
-rw-r--r--bundles/org.eclipse.osgi.util/src/org/osgi/util/function/Callback.java40
1 files changed, 40 insertions, 0 deletions
diff --git a/bundles/org.eclipse.osgi.util/src/org/osgi/util/function/Callback.java b/bundles/org.eclipse.osgi.util/src/org/osgi/util/function/Callback.java
new file mode 100644
index 000000000..17ff376bc
--- /dev/null
+++ b/bundles/org.eclipse.osgi.util/src/org/osgi/util/function/Callback.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) OSGi Alliance (2016). All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.osgi.util.function;
+
+import org.osgi.annotation.versioning.ConsumerType;
+
+/**
+ * A callback that performs an operation and may throw an exception.
+ * <p>
+ * This is a functional interface and can be used as the assignment target for a
+ * lambda expression or method reference.
+ *
+ * @ThreadSafe
+ * @since 1.1
+ * @author $Id$
+ */
+@ConsumerType
+@FunctionalInterface
+public interface Callback {
+ /**
+ * Execute the callback.
+ *
+ * @throws Exception An exception thrown by the method.
+ */
+ void run() throws Exception;
+}

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