[
https://issues.apache.org/jira/browse/HIVE-2853?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Phabricator updated HIVE-2853:
------------------------------
Attachment: HIVE-2853.D2175.2.patch
kevinwilfong updated the revision "HIVE-2853 [jira] Add pre event listeners to
metastore".
Reviewers: JIRA, njain
Instead of following the pattern used by MetaStoreEventListener, the
MetaStorePreEventListener now just uses one method for all metastore methods,
which takes in a context object. This context object contains an enum
indicating which type of context it is, and it is up to the hook to properly
cast the PreEventContext based on this. This means that to add the
PreEventListener to a new metastore method, all that needs to be done is
creating a new implementation of PreEventContext, and to actually add it to the
method. All existing hooks should continue to work.
REVISION DETAIL
https://reviews.facebook.net/D2175
AFFECTED FILES
metastore/src/test/org/apache/hadoop/hive/metastore/DummyPreListener.java
metastore/src/test/org/apache/hadoop/hive/metastore/TestMetaStoreEventListener.java
metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java
metastore/src/java/org/apache/hadoop/hive/metastore/MetaStorePreEventListener.java
metastore/src/java/org/apache/hadoop/hive/metastore/events/PreCreateDatabaseEvent.java
metastore/src/java/org/apache/hadoop/hive/metastore/events/PreDropDatabaseEvent.java
metastore/src/java/org/apache/hadoop/hive/metastore/events/PreDropPartitionEvent.java
metastore/src/java/org/apache/hadoop/hive/metastore/events/PreAlterPartitionEvent.java
metastore/src/java/org/apache/hadoop/hive/metastore/events/PreCreateTableEvent.java
metastore/src/java/org/apache/hadoop/hive/metastore/events/PreDropTableEvent.java
metastore/src/java/org/apache/hadoop/hive/metastore/events/PreAlterTableEvent.java
metastore/src/java/org/apache/hadoop/hive/metastore/events/PreLoadPartitionDoneEvent.java
metastore/src/java/org/apache/hadoop/hive/metastore/events/PreAddPartitionEvent.java
metastore/src/java/org/apache/hadoop/hive/metastore/events/PreEventContext.java
common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
> Add pre event listeners to metastore
> ------------------------------------
>
> Key: HIVE-2853
> URL: https://issues.apache.org/jira/browse/HIVE-2853
> Project: Hive
> Issue Type: Improvement
> Reporter: Kevin Wilfong
> Assignee: Kevin Wilfong
> Attachments: HIVE-2853.D2175.1.patch, HIVE-2853.D2175.2.patch
>
>
> Currently there are event listeners in the metastore which run after the
> completion of a method. It would be useful to have similar hooks which run
> before the metastore method is executed. These can be used to make
> validating names, locations, etc. customizable.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
