Java compact3 javax.management Class MBeanAttributeInfo（JDK8）

Constructor Detail

• MBeanAttributeInfo

  public MBeanAttributeInfo(String name,
                            String type,
                            String description,
                            boolean isReadable,
                            boolean isWritable,
                            boolean isIs)

  Constructs an MBeanAttributeInfo object.

  Parameters:

  name - The name of the attribute.

  type - The type or class name of the attribute.

  description - A human readable description of the attribute.

  isReadable - True if the attribute has a getter method, false otherwise.

  isWritable - True if the attribute has a setter method, false otherwise.

  isIs - True if this attribute has an "is" getter, false otherwise.

  Throws:

  IllegalArgumentException - if isIs is true but isReadable is not, or if isIs is true and type is not boolean or java.lang.Boolean. (New code should always use boolean rather than java.lang.Boolean.)

• MBeanAttributeInfo

  public MBeanAttributeInfo(String name,
                            String type,
                            String description,
                            boolean isReadable,
                            boolean isWritable,
                            boolean isIs,
                            Descriptor descriptor)

  Constructs an MBeanAttributeInfo object.

  Parameters:

  name - The name of the attribute.

  type - The type or class name of the attribute.

  description - A human readable description of the attribute.

  isReadable - True if the attribute has a getter method, false otherwise.

  isWritable - True if the attribute has a setter method, false otherwise.

  isIs - True if this attribute has an "is" getter, false otherwise.

  descriptor - The descriptor for the attribute. This may be null which is equivalent to an empty descriptor.

  Throws:

  IllegalArgumentException - if isIs is true but isReadable is not, or if isIs is true and type is not boolean or java.lang.Boolean. (New code should always use boolean rather than java.lang.Boolean.)

  Since:

  1.6

• MBeanAttributeInfo

  public MBeanAttributeInfo(String name,
                            String description,
                            Method getter,
                            Method setter)
                     throws IntrospectionException

  This constructor takes the name of a simple attribute, and Method objects for reading and writing the attribute. The Descriptor of the constructed object will include fields contributed by any annotations on the Method objects that contain the DescriptorKey meta-annotation.

  Parameters:

  name - The programmatic name of the attribute.

  description - A human readable description of the attribute.

  getter - The method used for reading the attribute value. May be null if the property is write-only.

  setter - The method used for writing the attribute value. May be null if the attribute is read-only.

  Throws:

  IntrospectionException - There is a consistency problem in the definition of this attribute.

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.

  Since this class is immutable, cloning is chiefly of interest to subclasses.

  Overrides:

  clone in class Object

  Returns:

  a clone of this instance.

  See Also:

  Cloneable

• getType

  public String getType()

  Returns the class name of the attribute.

  Returns:

  the class name.

• isReadable

  public boolean isReadable()

  Whether the value of the attribute can be read.

  Returns:

  True if the attribute can be read, false otherwise.

• isWritable

  public boolean isWritable()

  Whether new values can be written to the attribute.

  Returns:

  True if the attribute can be written to, false otherwise.

• isIs

  public boolean isIs()

  Indicates if this attribute has an "is" getter.

  Returns:

  true if this attribute has an "is" getter.

• toString

  public String toString()

  Description copied from class: Object
  Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

  The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

   getClass().getName() + '@' + Integer.toHexString(hashCode())
   

  Overrides:

  toString in class Object

  Returns:

  a string representation of the object.

• 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 if and only if o is an MBeanAttributeInfo such that its MBeanFeatureInfo.getName(), getType(), MBeanFeatureInfo.getDescription(), isReadable(), isWritable(), and isIs() values are equal (not necessarily identical) to those of this MBeanAttributeInfo.

  See Also:

  Object.hashCode(), HashMap

• 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 hash tables such as those provided by HashMap.

  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 hash tables.

  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™ programming language.)

  Overrides:

  hashCode in class MBeanFeatureInfo

  Returns:

  a hash code value for this object.

  See Also:

  Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)