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## javax.management
Class MBeanNotificationInfo

    java.lang.Object
      javax.management.MBeanFeatureInfo
          javax.management.MBeanNotificationInfo

All Implemented Interfaces:
  Serializable, Cloneable

Direct Known Subclasses:
  ModelMBeanNotificationInfo

    public class MBeanNotificationInfo

extends MBeanFeatureInfo
implements Cloneable, Serializable

The `MBeanNotificationInfo` class is used to describe the characteristics of the different notification instances emitted by an MBean, for a given Java class of notification. If an MBean emits notifications that can be instances of different Java classes, then the metadata for that MBean should provide an `MBeanNotificationInfo` object for each of these notification Java classes.

Instances of this class are immutable. Subclasses may be mutable but this is not recommended.

This class extends `javax.management.MBeanFeatureInfo` and thus provides `name` and `description` fields. The `name` field should be the fully qualified Java class name of the notification objects described by this class.

The `getNotifTypes` method returns an array of strings containing the notification types that the MBean may emit. The notification type is a dot-notation string which describes what the emitted notification is about, not the Java class of the notification. A single generic notification class can be used to send notifications of several types. All of these types are returned in the string array result of the `getNotifTypes` method.

Since:
  1.5
See Also:
  Serialized Form

Field Summary

Fields inherited from class javax.management.MBeanFeatureInfo
`description, name`

Constructor Summary
`MBeanNotificationInfo(String[] notifTypes, String name, String description)` Constructs an `MBeanNotificationInfo` object.

Method Summary
`Object` | `clone()` Returns a shallow clone of this instance.
`boolean` | `equals(Object o)` Compare this MBeanAttributeInfo to another.
`String[]` | `getNotifTypes()` Returns the array of strings (in dot notation) containing the notification types that the MBean may emit.
`int` | `hashCode()` Returns a hash code value for the object.

Methods inherited from class javax.management.MBeanFeatureInfo
`getDescription, getName`

Methods inherited from class java.lang.Object
`finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### MBeanNotificationInfo

    public MBeanNotificationInfo(String[] notifTypes,
                                 String name,
                                 String description)
                          throws IllegalArgumentException

  Constructs an `MBeanNotificationInfo` object.

  Parameters:
    `notifTypes` - The array of strings (in dot notation) containing the notification types that the MBean may emit. This may be null with the same effect as a zero-length array.
    `name` - The fully qualified Java class name of the described notifications.
    `description` - A human readable description of the data.
  Throws:
    `IllegalArgumentException`

Method Detail

### clone

    public Object clone()

  Returns a shallow clone of this instance. The clone is obtained by simply calling `super.clone()`, thus calling the default native shallow cloning mechanism implemented by `Object.clone()`. No deeper cloning of any internal field is made.

  Overrides:
    `clone` in class `Object`
  Returns:
    a clone of this instance.
  See Also:
    `Cloneable`

### getNotifTypes

    public String[] getNotifTypes()

  Returns the array of strings (in dot notation) containing the notification types that the MBean may emit.

  Returns:
    the array of strings. Changing the returned array has no effect on this MBeanNotificationInfo.

### equals

    public boolean equals(Object o)

  Compare this MBeanAttributeInfo to another.

  Overrides:
    `equals` in class `MBeanFeatureInfo`
  Parameters:
    `o` - the object to compare to.
  Returns:
    true iff `o` is an MBeanNotificationInfo such that its `MBeanFeatureInfo.getName()`, `MBeanFeatureInfo.getDescription()`, and `getNotifTypes()` values are equal (not necessarily identical) to those of this MBeanNotificationInfo. Two notification type arrays are equal if their corresponding elements are equal. They are not equal if they have the same elements but in a different order.
  See Also:
    `Object.hashCode()`, `Hashtable`

### hashCode

    public int hashCode()

  Description copied from class: `Object`
  Returns a hash code value for the object. This method is supported for the benefit of hashtables such as those provided by `java.util.Hashtable`.

  The general contract of `hashCode` is:

  - Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  - If two objects are equal according to the `equals(Object)` method, then calling the `hashCode` method on each of the two objects must produce the same integer result.
  - It is not required that if two objects are unequal according to the `Object.equals(java.lang.Object)` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hashtables.

  As much as is reasonably practical, the hashCode method defined by class `Object` does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)

  Overrides:
    `hashCode` in class `MBeanFeatureInfo`
  Returns:
    a hash code value for this object.
  See Also:
    `Object.equals(java.lang.Object)`, `Hashtable`

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.