org.eclipse.jetty.monitor.triggers
类 AttrEventTrigger<TYPE extends Comparable<TYPE>>

java.lang.Object
  org.eclipse.jetty.monitor.jmx.EventTrigger
      org.eclipse.jetty.monitor.triggers.AttrEventTrigger<TYPE>

直接已知子类：

EqualToAttrEventTrigger, GreaterThanAttrEventTrigger, GreaterThanOrEqualToAttrEventTrigger, JavaMonitorTrigger, LessThanAttrEventTrigger, LessThanOrEqualToAttrEventTrigger, RangeAttrEventTrigger, RangeInclAttrEventTrigger

public class AttrEventTrigger<TYPE extends Comparable<TYPE>>
extends EventTrigger

AttrEventTrigger Event trigger that polls a value of an MXBean attribute and matches every invocation of this trigger. It can be used to send notifications of the value of an attribute of the MXBean being polled at a certain interval, or as a base class for the event triggers that match the value of an attribute of the MXBean being polled against some specified criteria.

字段摘要

protected String	_attributeName
protected String	_objectName
protected Map<Long,EventState<TYPE>>	_states

构造方法摘要

AttrEventTrigger(ObjectName nameObject, String attributeName)
Construct event trigger and specify the MXBean attribute that will be polled by this event trigger.

AttrEventTrigger(String objectName, String attributeName)
Construct event trigger and specify the MXBean attribute that will be polled by this event trigger.

方法摘要

protected String	getNameString() Returns the string representation of this event trigger in the format "[object_name:attribute_name]".
protected boolean	getSaveAll()
EventState<TYPE>	getState(long timestamp) Retrieve the event state associated with specified invocation of the event trigger match method.
protected TYPE	getValue(CompositeData compValue, String fieldName)
boolean	match(Comparable<TYPE> value) Verify if the event trigger conditions are in the appropriate state for an event to be triggered.
boolean	match(long timestamp) Verify if the event trigger conditions are in the appropriate state for an event to be triggered.
String	toString() Returns the string representation of this event trigger in the format "[object_name:attribute_name]".

从类 org.eclipse.jetty.monitor.jmx.EventTrigger 继承的方法

getID

从类 java.lang.Object 继承的方法

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

字段详细信息

_objectName

protected final String _objectName

_attributeName

protected final String _attributeName

_states

protected Map<Long,EventState<TYPE extends Comparable<TYPE>>> _states

构造方法详细信息

AttrEventTrigger

public AttrEventTrigger(String objectName,
                        String attributeName)
                 throws MalformedObjectNameException,
                        IllegalArgumentException

Construct event trigger and specify the MXBean attribute that will be polled by this event trigger.

参数：

objectName - object name of an MBean to be polled

attributeName - name of an MBean attribute to be polled

抛出：

MalformedObjectNameException

IllegalArgumentException

AttrEventTrigger

public AttrEventTrigger(ObjectName nameObject,
                        String attributeName)
                 throws IllegalArgumentException

Construct event trigger and specify the MXBean attribute that will be polled by this event trigger.

参数：

nameObject - object name of an MBean to be polled

attributeName - name of an MBean attribute to be polled

抛出：

IllegalArgumentException

方法详细信息

match

public final boolean match(long timestamp)
                    throws Exception

Verify if the event trigger conditions are in the appropriate state for an event to be triggered. This event trigger uses the match(Comparable) method to compare the value of the MXBean attribute to the conditions specified by the subclasses.

指定者：

类 EventTrigger 中的 match

返回：

true to trigger an event

抛出：

Exception

另请参见：

EventTrigger.match(long)

match

public boolean match(Comparable<TYPE> value)

Verify if the event trigger conditions are in the appropriate state for an event to be triggered. Allows subclasses to override the default behavior that matches every invocation of this trigger

getState

public final EventState<TYPE> getState(long timestamp)

Retrieve the event state associated with specified invocation of the event trigger match method.

指定者：

类 EventTrigger 中的 getState

参数：

timestamp - time stamp associated with invocation

返回：

event state or null if not found

另请参见：

EventTrigger.getState(long)

toString

public String toString()

Returns the string representation of this event trigger in the format "[object_name:attribute_name]".

覆盖：

类 Object 中的 toString

返回：

string representation of the event trigger

另请参见：

Object.toString()

getNameString

protected String getNameString()

Returns the string representation of this event trigger in the format "[object_name:attribute_name]". Allows subclasses to override the name string used to identify this event trigger in the event state object as well as string representation of the subclasses.

返回：

string representation of the event trigger

getSaveAll

protected boolean getSaveAll()

getValue

protected TYPE getValue(CompositeData compValue,
                        String fieldName)