de.aristaflow.adept2.core.eventmanager.dbevents

Class DBActivityEventSource

java.lang.Object

de.aristaflow.adept2.core.eventmanager.common.AbstractEventSource<ResultSetEvent>

de.aristaflow.adept2.core.eventmanager.dbevents.DBEventSource

de.aristaflow.adept2.core.eventmanager.dbevents.DBActivityEventSource

All Implemented Interfaces:

EventSource<ResultSetEvent>, PollingSource<ResultSetEvent>, ResultSetSource, java.lang.Runnable

public class DBActivityEventSource
extends DBEventSource

A DB event source that takes its configuration from an activity configuration provided from a process step. This allows to have activities that wait for an event to occur.

Author:

Ulrich Kreher

Field Summary

Fields inherited from class de.aristaflow.adept2.core.eventmanager.dbevents.DBEventSource

dataSource, eventManager, jdbcConnectionURL, jdbcDriver, jdbcPassword, jdbcUserName, notifyEmptyOnly, pollTime, selectStatement, startTime

Fields inherited from class de.aristaflow.adept2.core.eventmanager.common.AbstractEventSource

eventType, handlerList, id, lock, logger, sourceType, thread, threadLock

Fields inherited from interface de.aristaflow.adept2.model.events.sources.PollingSource

CONF_POLL_TIME, CONF_START_TIME

Fields inherited from interface de.aristaflow.adept2.model.events.sources.ResultSetSource

CONF_DATA_SOURCE_NAME, CONF_JDBC_CONNECTION_URL, CONF_JDBC_DRIVER, CONF_JDBC_PASSWORD, CONF_JDBC_USER_NAME, CONF_NOTIFY_EMPTY_ONLY, CONF_SELECT_STATEMENT

Constructor Summary

Constructors

Constructor and Description
DBActivityEventSource(Configuration conf, DefaultEventManager eventManager, Registry registry) Default constructor for a plugin of the DefaultEventManager called by a service registry.

Method Summary

Modifier and Type	Method and Description
protected void	setConfiguration(Configuration conf, boolean completed) Sets the internal fields according to the values of the designated configuration.

Methods inherited from class de.aristaflow.adept2.core.eventmanager.dbevents.DBEventSource

checkForAndHandleEvent, createResultSetEvent, getPollTime, getStartTime, init, nextHandler, setConfiguration, terminate, verifyConfigurationValues

Methods inherited from class de.aristaflow.adept2.core.eventmanager.common.AbstractEventSource

addAll, addedHandlerLocked, addedHandlerLocked, addHandler, createPattern, forwardEvent, getEventHandler, getHierarchicalSourceName, getID, getType, maskedInterrupt, maskInterrupt, removeHandler, removingHandlerLocked, replaceValueParams, run, unmaskInterrupt

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface de.aristaflow.adept2.model.events.sources.EventSource

addAll, addHandler, getEventHandler, getHierarchicalSourceName, getID, getType, removeHandler

Methods inherited from interface java.lang.Runnable

run

Constructor Detail

DBActivityEventSource

public DBActivityEventSource(Configuration conf,
                             DefaultEventManager eventManager,
                             Registry registry)
                      throws ConfigurationException

Default constructor for a plugin of the DefaultEventManager called by a service registry.

Parameters:

conf - The configuration as provided from the registry. This is not expected to contain the simple session context of the activity of this event source.

eventManager - The event manager this event source is a plugin of.

registry - The registry of this plugin.

Throws:

ConfigurationException - If the configuration is not valid for a ResultSetEvent, a ConfigurationException will be thrown.

Method Detail

setConfiguration

protected void setConfiguration(Configuration conf,
                                boolean completed)
                         throws ConfigurationException

Sets the internal fields according to the values of the designated configuration. Note that this method is called from the constructor and therefore this object may not be fully initialised! Sets the configuration by retrieving the session context from it and setting the fields according to the session context. This incorporates overwriting the existing configuration with the values from the activity configuration.

Overrides:

setConfiguration in class DBEventSource

Parameters:

conf - The configuration from which to get the configuration values.

completed - Whether the configuration is complete after this setting and therefore the values should be verified.

Throws:

ConfigurationException - If there are problems with the configuration, for instance the configuration does not provide required values, a ConfigurationException may be thrown.