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javax.management
Class AttributeValueExp  

java.lang.Object
  javax.management.ValueExpSupport
      javax.management.AttributeValueExp

All Implemented Interfaces:

java.io.Serializable, ValueExp

Direct Known Subclasses:

ClassAttributeValueExp, QualifiedAttributeValueExp

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public class AttributeValueExp

extends ValueExpSupport

A String that is an arguement to a query.

Revisions:

20020317 Adrian Brock:

• Make queries thread safe

20020711 Adrian Brock:

• Serialization

Version:

$Revision: 1.3.6.1 $

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Field Summary
private  java.lang.String	attr           The attribute name
private static long	serialVersionUID

 

Constructor Summary

AttributeValueExp()           Construct an attribute value expression for the null attribute name

AttributeValueExp(java.lang.String attr)           Construct an attribute value expression for the passed attribute name

 

Method Summary
ValueExp	apply(ObjectName name)           Apply this value expression to an MBean.
protected  java.lang.Object	getAttribute(ObjectName name)           Get the value of the attribute for a given object name
java.lang.String	getAttributeName()           Get the attribute name.
(package private)  MBeanServer	getMBeanServer()           Get the MBean server
void	setMBeanServer(MBeanServer server)           Set the MBeanServer for this expression.
java.lang.String	toString()           Convert this Object to a human-readable String.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

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attr

private java.lang.String attr

The attribute name

Constructor Detail

AttributeValueExp

public AttributeValueExp()

Construct an attribute value expression for the null attribute name

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AttributeValueExp

public AttributeValueExp(java.lang.String attr)

Construct an attribute value expression for the passed attribute name

Method Detail

getAttributeName

public java.lang.String getAttributeName()

Get the attribute name.

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apply

public ValueExp apply(ObjectName name)
               throws BadStringOperationException,
                      BadBinaryOpValueExpException,
                      BadAttributeValueExpException,
                      InvalidApplicationException

Description copied from interface: ValueExp

Apply this value expression to an MBean.

Specified by:

apply in interface ValueExp

Overrides:

apply in class ValueExpSupport

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toString

public java.lang.String toString()

Description copied from class: java.lang.Object

Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() 55 and such.

It is typical, but not required, to ensure that this method never completes abruptly with a java.lang.RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).

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getAttribute

protected java.lang.Object getAttribute(ObjectName name)

Get the value of the attribute for a given object name

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setMBeanServer

public void setMBeanServer(MBeanServer server)

Description copied from interface: ValueExp

Set the MBeanServer for this expression. Only MBeans registered in this server can be used in queries.

Specified by:

setMBeanServer in interface ValueExp

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getMBeanServer

MBeanServer getMBeanServer()

Get the MBean server

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