LatestMonitorOnlyQueuedEventDispatcher (Java Channel Access 2.4.4-j8 API)

java.lang.Object
- gov.aps.jca.event.AbstractEventDispatcher
- - gov.aps.jca.event.LatestMonitorOnlyQueuedEventDispatcher

All Implemented Interfaces:

Configurable, EventDispatcher, Runnable
```
public class LatestMonitorOnlyQueuedEventDispatcher
extends AbstractEventDispatcher
implements Runnable, Configurable
```
This EventDispatcher uses an internal thread to dispatch events and overrides older (obsolete) monitor values.

Field Summary

Fields
Modifier and Type	Field and Description
`protected static int`	`_count`
`protected Thread`	`_dispatcherThread`
`protected boolean`	`_killed`
`protected int`	`_limit`
`protected String`	`_monitorOutput`
`protected Thread`	`_monitorThread`
`protected Map`	`_overrideMap`
`protected int`	`_priority`
`protected List`	`_queue`
`protected int`	`_queueLimit`
`protected Map`	`_sourcesEventCount`

Constructor Summary

Constructors
Constructor and Description

LatestMonitorOnlyQueuedEventDispatcher()

Constructors
Constructor and Description
`LatestMonitorOnlyQueuedEventDispatcher()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`configure(Configuration conf)` Pass the `Configuration` to the `Configurable` class.
`void`	`dispatch(AccessRightsEvent ev, AccessRightsListener arl)`
`void`	`dispatch(AccessRightsEvent ev, List listeners)`
`void`	`dispatch(ConnectionEvent ev, ConnectionListener cl)`
`void`	`dispatch(ConnectionEvent ev, List listeners)`
`void`	`dispatch(ContextExceptionEvent ev, ContextExceptionListener cel)`
`void`	`dispatch(ContextExceptionEvent ev, List listeners)`
`void`	`dispatch(ContextMessageEvent ev, ContextMessageListener cml)`
`void`	`dispatch(ContextMessageEvent ev, List listeners)`
`void`	`dispatch(GetEvent ev, GetListener gl)`
`void`	`dispatch(GetEvent ev, List listeners)`
`void`	`dispatch(MonitorEvent ev, List listeners)`
`void`	`dispatch(MonitorEvent ev, MonitorListener ml)`
`void`	`dispatch(PutEvent ev, List listeners)`
`void`	`dispatch(PutEvent ev, PutListener pl)`
`void`	`dispose()`
`int`	`getPriority()`
`protected void`	`nonBlockingQueueEvent(gov.aps.jca.event.LatestMonitorOnlyQueuedEventDispatcher.Event ev)`
`protected void`	`queueEvent(gov.aps.jca.event.LatestMonitorOnlyQueuedEventDispatcher.Event ev)`
`protected void`	`queueEvent(gov.aps.jca.event.LatestMonitorOnlyQueuedEventDispatcher.Event ev, boolean doNotBlockRequired)`
`void`	`run()` Process events in the queue as they are added.
`void`	`runMonitoring()` Monitors queue and outputs logs to the `monitor_log`.
`void`	`setPriority(int priority)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_count
```
protected static int _count
```

_killed
```
protected volatile boolean _killed
```

_priority
```
protected int _priority
```

_dispatcherThread
```
protected Thread _dispatcherThread
```

_queue
```
protected List _queue
```

_queueLimit
```
protected int _queueLimit
```

_sourcesEventCount
```
protected Map _sourcesEventCount
```

_limit
```
protected int _limit
```

_overrideMap
```
protected Map _overrideMap
```

_monitorOutput
```
protected String _monitorOutput
```

_monitorThread
```
protected Thread _monitorThread
```

Constructor Detail
- LatestMonitorOnlyQueuedEventDispatcher
```
public LatestMonitorOnlyQueuedEventDispatcher()
```

Method Detail
- nonBlockingQueueEvent
```
protected void nonBlockingQueueEvent(gov.aps.jca.event.LatestMonitorOnlyQueuedEventDispatcher.Event ev)
```
- queueEvent
```
protected void queueEvent(gov.aps.jca.event.LatestMonitorOnlyQueuedEventDispatcher.Event ev)
```
- queueEvent
```
protected void queueEvent(gov.aps.jca.event.LatestMonitorOnlyQueuedEventDispatcher.Event ev,
                          boolean doNotBlockRequired)
```
- run
```
public void run()
```
  Process events in the queue as they are added. The queue must be synchronized for thread safety but we must be careful not to block for too long or else new events get blocked from being added to the queue causing long delays. The design is to process events in batches. This allows for the most efficient use of computer cycles since much of the time the queue will not be blocked. This method was modified by tap on 6/17/2004 to allow both efficient event processing and thread safety. Later optimized by msekoranja.
  
  Specified by:
  
  run in interface Runnable
- dispose
```
public void dispose()
```
  Specified by:
  
  dispose in interface EventDispatcher
  
  Overrides:
  
  dispose in class AbstractEventDispatcher
- configure
```
public void configure(Configuration conf)
               throws ConfigurationException
```
  Description copied from interface: Configurable
  
  Pass the Configuration to the Configurable class. This method must always be called after the constructor and before any other method.
  
  Specified by:
  
  configure in interface Configurable
  
  Parameters:
  
  conf - the class configurations.
  
  Throws:
  
  ConfigurationException - if an error occurs
- getPriority
```
public int getPriority()
```
- setPriority
```
public void setPriority(int priority)
```
- dispatch
```
public void dispatch(ContextMessageEvent ev,
                     List listeners)
```
  Specified by:
  
  dispatch in interface EventDispatcher
- dispatch
```
public void dispatch(ContextExceptionEvent ev,
                     List listeners)
```
  Specified by:
  
  dispatch in interface EventDispatcher
- dispatch
```
public void dispatch(ConnectionEvent ev,
                     List listeners)
```
  Specified by:
  
  dispatch in interface EventDispatcher
- dispatch
```
public void dispatch(AccessRightsEvent ev,
                     List listeners)
```
  Specified by:
  
  dispatch in interface EventDispatcher
- dispatch
```
public void dispatch(MonitorEvent ev,
                     List listeners)
```
  Specified by:
  
  dispatch in interface EventDispatcher
- dispatch
```
public void dispatch(GetEvent ev,
                     List listeners)
```
  Specified by:
  
  dispatch in interface EventDispatcher
- dispatch
```
public void dispatch(PutEvent ev,
                     List listeners)
```
  Specified by:
  
  dispatch in interface EventDispatcher
- dispatch
```
public void dispatch(ContextMessageEvent ev,
                     ContextMessageListener cml)
```
  Specified by:
  
  dispatch in interface EventDispatcher
  
  Overrides:
  
  dispatch in class AbstractEventDispatcher
- dispatch
```
public void dispatch(ContextExceptionEvent ev,
                     ContextExceptionListener cel)
```
  Specified by:
  
  dispatch in interface EventDispatcher
  
  Overrides:
  
  dispatch in class AbstractEventDispatcher
- dispatch
```
public void dispatch(ConnectionEvent ev,
                     ConnectionListener cl)
```
  Specified by:
  
  dispatch in interface EventDispatcher
  
  Overrides:
  
  dispatch in class AbstractEventDispatcher
- dispatch
```
public void dispatch(AccessRightsEvent ev,
                     AccessRightsListener arl)
```
  Specified by:
  
  dispatch in interface EventDispatcher
  
  Overrides:
  
  dispatch in class AbstractEventDispatcher
- dispatch
```
public void dispatch(MonitorEvent ev,
                     MonitorListener ml)
```
  Specified by:
  
  dispatch in interface EventDispatcher
  
  Overrides:
  
  dispatch in class AbstractEventDispatcher
- dispatch
```
public void dispatch(GetEvent ev,
                     GetListener gl)
```
  Specified by:
  
  dispatch in interface EventDispatcher
  
  Overrides:
  
  dispatch in class AbstractEventDispatcher
- dispatch
```
public void dispatch(PutEvent ev,
                     PutListener pl)
```
  Specified by:
  
  dispatch in interface EventDispatcher
  
  Overrides:
  
  dispatch in class AbstractEventDispatcher
- runMonitoring
```
public void runMonitoring()
```
  Monitors queue and outputs logs to the monitor_log.

Class LatestMonitorOnlyQueuedEventDispatcher

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

_count

_killed

_priority

_dispatcherThread

_queue

_queueLimit

_sourcesEventCount

_limit

_overrideMap

_monitorOutput

_monitorThread

Constructor Detail

LatestMonitorOnlyQueuedEventDispatcher

Method Detail

nonBlockingQueueEvent

queueEvent

queueEvent

run

dispose

configure

getPriority

setPriority

dispatch

dispatch

dispatch

dispatch

dispatch

dispatch

dispatch

dispatch

dispatch

dispatch

dispatch

dispatch

dispatch

dispatch

runMonitoring