Skip navigation links

com.oracle.cep.cartridge
Interface ExternalDataSource

public interface ExternalDataSource

extends ExternalSource

An ExternalDataSource is an external source of contextual data that can be joined together with events within a CQL processor.

ExternalDataSources are part of the OCEP Cartridge infrastructure.

Register a Spring Bean Factory that implements this interface as the target of the EPN tag wlevs:table-source to make the data-source available to CQL processors. See org.springframework.beans.factory.config.AbstractFactoryBean

An ExternalDataSource is by default managed as a "bean" EPN stage. However, you may customize its management by implementing the interface StageFactoryAccess

See Also:

org.springframework.beans.factory.config.AbstractFactoryBean, com.bea.wlevs.management.configuration.spring.StageFactoryAccess, Spring Framework extensible XML

Method Summary

ExternalConnection

getConnection() Attempts to get a connection to the data source

Methods inherited from interface com.bea.wlevs.ede.api.ExternalSource

getCacheDataSource, getEventType, getExternalRowsThreshold, getId, getJDBCDataSource, getKeyClass, getKeyPropertyNames, getTableName

Method Detail

getConnection

public ExternalConnection getConnection()
                                 throws java.lang.Exception

Attempts to get a connection to the data source

Returns:

a connection to the data source