monitor.html

j2ee api,很好的api。我这现在有

<DD><B>Deprecated.</B>&nbsp;<I>As of JMX 1.2, replaced by <A HREF="../../../javax/management/monitor/Monitor.html#addObservedObject(javax.management.ObjectName)"><CODE>addObservedObject(javax.management.ObjectName)</CODE></A></I>
<P>
<DD>Removes all objects from the set of observed objects, and then adds the
 specified object.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html#setObservedObject(javax.management.ObjectName)">setObservedObject</A></CODE> in interface <CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html" title="interface in javax.management.monitor">MonitorMBean</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>object</CODE> - The object to observe.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - The specified
 object is null.<DT><B>See Also:</B><DD><A HREF="../../../javax/management/monitor/Monitor.html#getObservedObject()"><CODE>getObservedObject()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="addObservedObject(javax.management.ObjectName)"><!-- --></A><H3>
addObservedObject</H3>
<PRE>
public void <B>addObservedObject</B>(<A HREF="../../../javax/management/ObjectName.html" title="class in javax.management">ObjectName</A>&nbsp;object)
                       throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></PRE>
<DL>
<DD>Adds the specified object in the set of observed MBeans, if this object
 is not already present.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html#addObservedObject(javax.management.ObjectName)">addObservedObject</A></CODE> in interface <CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html" title="interface in javax.management.monitor">MonitorMBean</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>object</CODE> - The object to observe.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - The specified object is null.<DT><B>Since:</B></DT>
  <DD>JMX 1.2</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="removeObservedObject(javax.management.ObjectName)"><!-- --></A><H3>
removeObservedObject</H3>
<PRE>
public void <B>removeObservedObject</B>(<A HREF="../../../javax/management/ObjectName.html" title="class in javax.management">ObjectName</A>&nbsp;object)</PRE>
<DL>
<DD>Removes the specified object from the set of observed MBeans.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html#removeObservedObject(javax.management.ObjectName)">removeObservedObject</A></CODE> in interface <CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html" title="interface in javax.management.monitor">MonitorMBean</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>object</CODE> - The object to remove.<DT><B>Since:</B></DT>
  <DD>JMX 1.2</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="containsObservedObject(javax.management.ObjectName)"><!-- --></A><H3>
containsObservedObject</H3>
<PRE>
public boolean <B>containsObservedObject</B>(<A HREF="../../../javax/management/ObjectName.html" title="class in javax.management">ObjectName</A>&nbsp;object)</PRE>
<DL>
<DD>Tests whether the specified object is in the set of observed MBeans.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html#containsObservedObject(javax.management.ObjectName)">containsObservedObject</A></CODE> in interface <CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html" title="interface in javax.management.monitor">MonitorMBean</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>object</CODE> - The object to check.
<DT><B>Returns:</B><DD><CODE>true</CODE> if the specified object is present, <CODE>false</CODE> otherwise.<DT><B>Since:</B></DT>
  <DD>JMX 1.2</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="getObservedObjects()"><!-- --></A><H3>
getObservedObjects</H3>
<PRE>
public <A HREF="../../../javax/management/ObjectName.html" title="class in javax.management">ObjectName</A>[] <B>getObservedObjects</B>()</PRE>
<DL>
<DD>Returns an array containing the objects being observed.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html#getObservedObjects()">getObservedObjects</A></CODE> in interface <CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html" title="interface in javax.management.monitor">MonitorMBean</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The objects being observed.<DT><B>Since:</B></DT>
  <DD>JMX 1.2</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="getObservedAttribute()"><!-- --></A><H3>
getObservedAttribute</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>getObservedAttribute</B>()</PRE>
<DL>
<DD>Gets the attribute being observed.
 <BR>The observed attribute is not initialized by default (set to null).
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html#getObservedAttribute()">getObservedAttribute</A></CODE> in interface <CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html" title="interface in javax.management.monitor">MonitorMBean</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The attribute being observed.<DT><B>See Also:</B><DD><A HREF="../../../javax/management/monitor/Monitor.html#setObservedAttribute(java.lang.String)"><CODE>setObservedAttribute(java.lang.String)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setObservedAttribute(java.lang.String)"><!-- --></A><H3>
setObservedAttribute</H3>
<PRE>
public void <B>setObservedAttribute</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;attribute)
                          throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></PRE>
<DL>
<DD>Sets the attribute to observe.
 <BR>The observed attribute is not initialized by default (set to null).
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html#setObservedAttribute(java.lang.String)">setObservedAttribute</A></CODE> in interface <CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html" title="interface in javax.management.monitor">MonitorMBean</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>attribute</CODE> - The attribute to observe.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - The specified
 attribute is null.<DT><B>See Also:</B><DD><A HREF="../../../javax/management/monitor/Monitor.html#getObservedAttribute()"><CODE>getObservedAttribute()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getGranularityPeriod()"><!-- --></A><H3>
getGranularityPeriod</H3>
<PRE>
public long <B>getGranularityPeriod</B>()</PRE>
<DL>
<DD>Gets the granularity period (in milliseconds).
 <BR>The default value of the granularity period is 10 seconds.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html#getGranularityPeriod()">getGranularityPeriod</A></CODE> in interface <CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html" title="interface in javax.management.monitor">MonitorMBean</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The granularity period value.<DT><B>See Also:</B><DD><A HREF="../../../javax/management/monitor/Monitor.html#setGranularityPeriod(long)"><CODE>setGranularityPeriod(long)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setGranularityPeriod(long)"><!-- --></A><H3>
setGranularityPeriod</H3>
<PRE>
public void <B>setGranularityPeriod</B>(long&nbsp;period)
                          throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></PRE>
<DL>
<DD>Sets the granularity period (in milliseconds).
 <BR>The default value of the granularity period is 10 seconds.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html#setGranularityPeriod(long)">setGranularityPeriod</A></CODE> in interface <CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html" title="interface in javax.management.monitor">MonitorMBean</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>period</CODE> - The granularity period value.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - The granularity
 period is less than or equal to zero.<DT><B>See Also:</B><DD><A HREF="../../../javax/management/monitor/Monitor.html#getGranularityPeriod()"><CODE>getGranularityPeriod()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="isActive()"><!-- --></A><H3>
isActive</H3>
<PRE>
public boolean <B>isActive</B>()</PRE>
<DL>
<DD>Tests whether the monitor MBean is active.
 A monitor MBean is marked active when the <A HREF="../../../javax/management/monitor/Monitor.html#start()"><CODE>start</CODE></A> method is called.
 It becomes inactive when the <A HREF="../../../javax/management/monitor/Monitor.html#stop()"><CODE>stop</CODE></A> method is called.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html#isActive()">isActive</A></CODE> in interface <CODE><A HREF="../../../javax/management/monitor/MonitorMBean.html" title="interface in javax.management.monitor">MonitorMBean</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD><CODE>true</CODE> if the monitor MBean is active, <CODE>false</CODE> otherwise.</DL>
</DD>
</DL>
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