1 files changed, 52 insertions, 0 deletions
diff --git a/velocity-engine-core/src/main/java/org/apache/velocity/app/event/MethodExceptionEventHandler.java b/velocity-engine-core/src/main/java/org/apache/velocity/app/event/MethodExceptionEventHandler.java
new file mode 100644
index 00000000..9661a964
--- /dev/null
+++ b/velocity-engine-core/src/main/java/org/apache/velocity/app/event/MethodExceptionEventHandler.java
@@ -0,0 +1,52 @@
+package org.apache.velocity.app.event;
+
+import org.apache.velocity.context.Context;
+import org.apache.velocity.util.introspection.Info;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+/**
+ *  Event handler called when a method throws an exception.  This gives the
+ *  application a chance to deal with it and either
+ *  return something nice, or throw.
+ *
+ *  Please return what you want rendered into the output stream.
+ *
+ * @author <a href="mailto:wglass@forio.com">Will Glass-Husain</a>
+ * @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a>
+ * @version $Id$
+ */
+public interface MethodExceptionEventHandler extends EventHandler
+{
+    /**
+     * Called when a method throws an exception.
+     * Only the first registered MethodExceptionEventHandler is called.  If
+     * none are registered a MethodInvocationException is thrown.
+     *
+     * @param context current context
+     * @param claz the class of the object the method is being applied to
+     * @param method the method
+     * @param e the thrown exception
+     * @param info contains template, line, column details
+     * @return an object to insert in the page
+     * @throws RuntimeException an exception to be thrown instead inserting an object
+     */
+    Object methodException(Context context, Class<?> claz, String method, Exception e, Info info);
+}