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https://issues.apache.org/jira/browse/METRON-1382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16314649#comment-16314649
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ASF GitHub Bot commented on METRON-1382:
----------------------------------------
Github user ottobackwards commented on a diff in the pull request:
https://github.com/apache/metron/pull/884#discussion_r160026564
--- Diff:
metron-stellar/stellar-common/src/main/java/org/apache/metron/stellar/common/shell/StellarExecutionListeners.java
---
@@ -0,0 +1,51 @@
+/*
+ *
+ * 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.
+ *
+ */
+package org.apache.metron.stellar.common.shell;
+
+import org.apache.metron.stellar.common.shell.specials.SpecialCommand;
+import org.apache.metron.stellar.dsl.StellarFunctionInfo;
+
+/**
+ * A listener will be notified about events that occur during the
+ * execution of Stellar expressions.
+ */
+public class StellarExecutionListeners {
+
+ /**
+ * A listener that is notified when a function is defined.
+ */
+ public interface FunctionDefinedListener {
+ void whenFunctionDefined(StellarFunctionInfo functionInfo);
+ }
--- End diff --
Sorry, battle scars.
> Run Stellar in a Zeppelin Notebook
> ----------------------------------
>
> Key: METRON-1382
> URL: https://issues.apache.org/jira/browse/METRON-1382
> Project: Metron
> Issue Type: Improvement
> Reporter: Nick Allen
> Assignee: Nick Allen
>
> Create a Zeppelin interpreter that allows Stellar to run in a Zeppelin
> Notebook, the same way that it runs in the command-line driven REPL.
> This should include all of the Stellar "enhancements" available in the REPL
> that are not part of the core Stellar language including the following.
> * Variable assignment
> * Magics
> * Docstrings
> * Comments
> * quit
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