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https://issues.apache.org/jira/browse/DRILL-3742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14952522#comment-14952522
]
ASF GitHub Bot commented on DRILL-3742:
---------------------------------------
Github user jacques-n commented on a diff in the pull request:
https://github.com/apache/drill/pull/148#discussion_r41718409
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/FunctionAttributes.java
---
@@ -0,0 +1,94 @@
+/**
+ * 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.drill.exec.expr.fn;
+
+import
org.apache.drill.exec.expr.annotations.FunctionTemplate.FunctionCostCategory;
+import
org.apache.drill.exec.expr.annotations.FunctionTemplate.FunctionScope;
+import
org.apache.drill.exec.expr.annotations.FunctionTemplate.NullHandling;
+import org.apache.drill.exec.expr.fn.DrillFuncHolder.ValueReference;
+import org.apache.drill.exec.expr.fn.DrillFuncHolder.WorkspaceReference;
+
+public class FunctionAttributes {
--- End diff --
javadoc
> Improve classpath scanning to reduce the time it takes
> ------------------------------------------------------
>
> Key: DRILL-3742
> URL: https://issues.apache.org/jira/browse/DRILL-3742
> Project: Apache Drill
> Issue Type: Improvement
> Reporter: Julien Le Dem
> Fix For: Future
>
>
> classpath scanning and function registry take a long time (seconds every
> time).
> We'd want to avoid loading the classes (use bytecode inspection instead) and
> have a build time cache to avoid doing the scanning at startup.
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