Module java.management
Package javax.management

## Class MBeanAttributeInfo

- java.lang.Object
- - javax.management.MBeanFeatureInfo
  - - javax.management.MBeanAttributeInfo

- All Implemented Interfaces:
    `Serializable`, `Cloneable`, `DescriptorRead`
  Direct Known Subclasses:
    `ModelMBeanAttributeInfo`, `OpenMBeanAttributeInfoSupport`

      public class MBeanAttributeInfo
      extends MBeanFeatureInfo
      implements Cloneable

  Describes an MBean attribute exposed for management. Instances of this class are immutable. Subclasses may be mutable but this is not recommended.
  Since:
    1.5
  See Also:
    Serialized Form

- - ### Field Summary

    - ### Fields declared in class javax.management.MBeanFeatureInfo

      `description, name`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `MBeanAttributeInfo​(String name, String description, Method getter, Method setter)` | This constructor takes the name of a simple attribute, and Method objects for reading and writing the attribute.
    `MBeanAttributeInfo​(String name, String type, String description, boolean isReadable, boolean isWritable, boolean isIs)` | Constructs an `MBeanAttributeInfo` object.
    `MBeanAttributeInfo​(String name, String type, String description, boolean isReadable, boolean isWritable, boolean isIs, Descriptor descriptor)` | Constructs an `MBeanAttributeInfo` object.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `Object` | `clone()` | Returns a shallow clone of this instance.
    `boolean` | `equals​(Object o)` | Compare this MBeanAttributeInfo to another.
    `String` | `getType()` | Returns the class name of the attribute.
    `boolean` | `isIs()` | Indicates if this attribute has an "is" getter.
    `boolean` | `isReadable()` | Whether the value of the attribute can be read.
    `boolean` | `isWritable()` | Whether new values can be written to the attribute.

    - ### Methods declared in class javax.management.MBeanFeatureInfo

      `getDescription, getDescriptor, getName`

    - ### Methods declared in class java.lang.Object

      `finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### 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.

    - #### 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`