Github user chinmaykolhatkar commented on a diff in the pull request:
https://github.com/apache/incubator-apex-core/pull/311#discussion_r60111129
--- Diff: api/src/main/java/com/datatorrent/api/StreamingApplication.java
---
@@ -47,6 +47,12 @@
String ENVIRONMENT = DT_PREFIX + "environment";
/**
+ * Use this config variable to to add any external library to classpath
for the DAG.
+ * Value of this variable is same as
StramAppLauncher.LIBJARS_CONF_KEY_NAME.
+ */
+ String LIBJARS_CONF_KEY_NAME = "tmplibjars";
--- End diff --
The reason why it's added here is constant for tmplibjars is present in
StramLauncher which is part of apex-engine and if this variable is to be used
in malhar, apex-engine won't be added as dependency to malhar.
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