Camel sql component with cron - sql

Question

I am trying to set a scheduler in order to set a cron expression.
<camel:endpoint id="sqlEndpoint" uri="sql:${sqlQuery}?scheduler=spring&scheduler.cron=0+6+8+*+*&dataSourceRef=veloxityDS&useIterator=false"/>
But when I run this as a consumer, this exception occured:
org.apache.camel.FailedToCreateConsumerException: Failed to create
Consumer for endpoint: Endpoint[sql://$select * from
dual?dataSourceRef=veloxityDS&scheduler=spring&scheduler.cron=0+6+8++&useIterator=false].
Reason: There are 1 scheduler parameters that couldn't be set on the
endpoint. Check the uri if the parameters are spelt correctly and that
they are properties of the endpoint. Unknown parameters=[{cron=0 6 8 *
*}]
Any ideas?

Answer 1

The endpoint you are trying to create is using parameters that don't exist. There is a full list of parameters at: http://camel.apache.org/sql-component.html
If you want your SQL procedure to run on a time interval you can either use a quartz endpoint, a polling consumer, or a route scheduler depending on your needs.
http://camel.apache.org/polling-consumer.html
http://camel.apache.org/quartz2.html
http://camel.apache.org/cronscheduledroutepolicy.html
Current parameter issues on your endpoint:
scheduler - not a supported parameter
scheduler.cron - not a supported parameter
dataSourceRef - deprecated.
Your scheduling alternatives leveraging only the sql endpoint are:
consumer.delay
consumer.initialDelay
consumer.useFixedDelay
maxMessagesPerPoll