MBeanFeatureInfo (Java 2 Platform SE 5.0) - JDK 5 Documentation v1.5.0, Java 2 SDK 英文文档

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Java^TM 2 Platform
Standard Ed. 5.0

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javax.management
Class MBeanFeatureInfo

java.lang.Object
  javax.management.MBeanFeatureInfo

All Implemented Interfaces:: Serializable

Direct Known Subclasses:: MBeanAttributeInfo, MBeanConstructorInfo, MBeanNotificationInfo, MBeanOperationInfo, MBeanParameterInfo

public class MBeanFeatureInfo
extends Object
implements Serializable
extends Object
implements Serializable

Provides general information for an MBean descriptor object. The feature described can be an attribute, an operation, a parameter, or a notification. Instances of this class are immutable. Subclasses may be mutable but this is not recommended.

Since:: 1.5
See Also:: Serialized Form

Field Summary

protected String description
          The human-readable description of the feature.

protected String name
          The name of the feature.

Constructor Summary

MBeanFeatureInfo(String name, String description)
          Constructs an MBeanFeatureInfo object.

Method Summary

boolean equals(Object o)
          Compare this MBeanFeatureInfo to another.

String getDescription()
          Returns the human-readable description of the feature.

String getName()
          Returns the name of the feature.

int hashCode()
          Returns a hash code value for the object.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Summary
`protected String`	`description` The human-readable description of the feature.
`protected String`	`name` The name of the feature.

Constructor Summary
`MBeanFeatureInfo(String name, String description)` Constructs an `MBeanFeatureInfo` object.

Method Summary
`boolean`	`equals(Object o)` Compare this MBeanFeatureInfo to another.
`String`	`getDescription()` Returns the human-readable description of the feature.
`String`	`getName()` Returns the name of the feature.
`int`	`hashCode()` Returns a hash code value for the object.

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

Field Detail

name

protected String name

The name of the feature. It is recommended that subclasses call getName() rather than reading this field, and that they not change it.

description

protected String description

The human-readable description of the feature. It is recommended that subclasses call getDescription() rather than reading this field, and that they not change it.

Constructor Detail

MBeanFeatureInfo

public MBeanFeatureInfo(String name,
                        String description)
                 throws IllegalArgumentException

Constructs an MBeanFeatureInfo object.

Parameters:: name - The name of the feature.; description - A human readable description of the feature.
Throws:: IllegalArgumentException

Method Detail

getName

public String getName()

Returns the name of the feature.

Returns:: the name of the feature.

getDescription

public String getDescription()

Returns the human-readable description of the feature.

Returns:: the human-readable description of the feature.

equals

public boolean equals(Object o)

Compare this MBeanFeatureInfo to another.

Overrides:: equals in class Object

Parameters:: o - the object to compare to.
Returns:: true iff o is an MBeanFeatureInfo such that its getName() and getDescription() values are equal (not necessarily identical) to those of this MBeanFeatureInfo.
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 Java^TM programming language.)

Overrides:: hashCode in class Object

Returns:: a hash code value for this object.
See Also:: Object.equals(java.lang.Object), Hashtable