Deepak Narkhede created APEXMALHAR-2330:
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Summary: JdbcPOJOPollInputOperator fails with NullPointerException
when PostgreSQL driver
Key: APEXMALHAR-2330
URL: https://issues.apache.org/jira/browse/APEXMALHAR-2330
Project: Apache Apex Malhar
Issue Type: Bug
Reporter: Deepak Narkhede
Assignee: Deepak Narkhede
Here is the description:
Problem:
JdbcPOJOPollInputOperator fails with NullPointerException when PostgreSQL
driver.
Problem Description:
1) When JdbcPOJOPollInputOperator tries to populateColumnDataTypes, column
names retrieved from resultmetadata from database ( this case : Postgres) are
all lowercase.
2) Whereas columnDatatypes specified in fieldinfos might be in same case.
3) Internally hashmap ( nameToType) is used which mismatches if column name and
fieldinfo are not in same case. Hence columnDataTypes is empty which causes
null exception in activate call.
Proposed Solution:
Using similar case for hashmap and column names irrespective of any database
used for JdbcPOJOPollInputOperator.
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