ModelMBeanAttributeInfo (Java Platform SE 7 b138)

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

All Implemented Interfaces:: Serializable, Cloneable, DescriptorAccess, DescriptorRead

public class ModelMBeanAttributeInfo
extends MBeanAttributeInfo
implements DescriptorAccess

The ModelMBeanAttributeInfo object describes an attribute of the ModelMBean. It is a subclass of MBeanAttributeInfo with the addition of an associated Descriptor and an implementation of the DescriptorAccess interface.

The fields in the descriptor are defined, but not limited to, the following. Note that when the Type in this table is Number, a String that is the decimal representation of a Long can also be used.

Name	Type	Meaning
name	String	Attribute name.
descriptorType	String	Must be "attribute".
value	Object	Current (cached) value for attribute.
default	Object	Default value for attribute.
displayName	String	Name of attribute to be used in displays.
getMethod	String	Name of operation descriptor for get method.
setMethod	String	Name of operation descriptor for set method.
protocolMap	Descriptor	See the section "Protocol Map Support" in the JMX specification document. Mappings must be appropriate for the attribute and entries can be updated or augmented at runtime.
persistPolicy	String	One of: OnUpdate\|OnTimer\|NoMoreOftenThan\|OnUnregister\|Always\|Never. See the section "MBean Descriptor Fields" in the JMX specification document.
persistPeriod	Number	Frequency of persist cycle in seconds. Used when persistPolicy is "OnTimer" or "NoMoreOftenThan".
currencyTimeLimit	Number	How long value is valid: <0 never, =0 always, >0 seconds.
lastUpdatedTimeStamp	Number	When value was set.
visibility	Number	1-4 where 1: always visible, 4: rarely visible.
presentationString	String	XML formatted string to allow presentation of data.

The default descriptor contains the name, descriptorType and displayName fields. The default value of the name and displayName fields is the name of the attribute.

Note: because of inconsistencies in previous versions of this specification, it is recommended not to use negative or zero values for currencyTimeLimit. To indicate that a cached value is never valid, omit the currencyTimeLimit field. To indicate that it is always valid, use a very large number for this field.

The serialVersionUID of this class is 6181543027787327345L.

Since:: 1.5
See Also:: Serialized Form

Field Summary
- Fields inherited from class javax.management.MBeanFeatureInfo
  description, name

Constructor Summary

Constructors
Constructor and Description
`ModelMBeanAttributeInfo(ModelMBeanAttributeInfo inInfo)` Constructs a new ModelMBeanAttributeInfo object from this ModelMBeanAttributeInfo Object.
`ModelMBeanAttributeInfo(String name, String description, Method getter, Method setter)` Constructs a ModelMBeanAttributeInfo object with a default descriptor.
`ModelMBeanAttributeInfo(String name, String description, Method getter, Method setter, Descriptor descriptor)` Constructs a ModelMBeanAttributeInfo object.
`ModelMBeanAttributeInfo(String name, String type, String description, boolean isReadable, boolean isWritable, boolean isIs)` Constructs a ModelMBeanAttributeInfo object with a default descriptor.
`ModelMBeanAttributeInfo(String name, String type, String description, boolean isReadable, boolean isWritable, boolean isIs, Descriptor descriptor)` Constructs a ModelMBeanAttributeInfo object.

Method Summary

Methods
Modifier and Type	Method and Description
`Object`	`clone()` Creates and returns a new ModelMBeanAttributeInfo which is a duplicate of this ModelMBeanAttributeInfo.
`Descriptor`	`getDescriptor()` Gets a copy of the associated Descriptor for the ModelMBeanAttributeInfo.
`void`	`setDescriptor(Descriptor inDescriptor)` Sets associated Descriptor (full replace) for the ModelMBeanAttributeDescriptor.
`String`	`toString()` Returns a human-readable version of the ModelMBeanAttributeInfo instance.

Methods inherited from class javax.management.MBeanAttributeInfo
equals, getType, hashCode, isIs, isReadable, isWritable

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

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

- Constructor Detail
  - ModelMBeanAttributeInfo
```
public ModelMBeanAttributeInfo(String name,
                       String description,
                       Method getter,
                       Method setter)
                        throws IntrospectionException
```
    Constructs a ModelMBeanAttributeInfo object with a default descriptor. 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 name of the attribute.
    description - A human readable description of the attribute. Optional.
    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.
  - ModelMBeanAttributeInfo
```
public ModelMBeanAttributeInfo(String name,
                       String description,
                       Method getter,
                       Method setter,
                       Descriptor descriptor)
                        throws IntrospectionException
```
    Constructs a ModelMBeanAttributeInfo object. 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 name of the attribute.
    description - A human readable description of the attribute. Optional.
    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.
    descriptor - An instance of Descriptor containing the appropriate metadata for this instance of the Attribute. If it is null, then a default descriptor will be created. If the descriptor does not contain the field "displayName" this field is added in the descriptor with its default value.
    
    Throws:
    
    IntrospectionException - There is a consistency problem in the definition of this attribute.
    
    RuntimeOperationsException - Wraps an IllegalArgumentException. The descriptor is invalid, or descriptor field "name" is not equal to name parameter, or descriptor field "descriptorType" is not equal to "attribute".
  - ModelMBeanAttributeInfo
```
public ModelMBeanAttributeInfo(String name,
                       String type,
                       String description,
                       boolean isReadable,
                       boolean isWritable,
                       boolean isIs)
```
    Constructs a ModelMBeanAttributeInfo object with a default descriptor.
    
    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 the attribute has an "is" getter, false otherwise.
  - ModelMBeanAttributeInfo
```
public ModelMBeanAttributeInfo(String name,
                       String type,
                       String description,
                       boolean isReadable,
                       boolean isWritable,
                       boolean isIs,
                       Descriptor descriptor)
```
    Constructs a ModelMBeanAttributeInfo 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 the attribute has an "is" getter, false otherwise.
    descriptor - An instance of Descriptor containing the appropriate metadata for this instance of the Attribute. If it is null then a default descriptor will be created. If the descriptor does not contain the field "displayName" this field is added in the descriptor with its default value.
    
    Throws:
    
    RuntimeOperationsException - Wraps an IllegalArgumentException. The descriptor is invalid, or descriptor field "name" is not equal to name parameter, or descriptor field "descriptorType" is not equal to "attribute".
  - ModelMBeanAttributeInfo
```
public ModelMBeanAttributeInfo(ModelMBeanAttributeInfo inInfo)
```
    Constructs a new ModelMBeanAttributeInfo object from this ModelMBeanAttributeInfo Object. A default descriptor will be created.
    
    Parameters:
    inInfo - the ModelMBeanAttributeInfo to be duplicated
- Method Detail
  - getDescriptor
```
public Descriptor getDescriptor()
```
    Gets a copy of the associated Descriptor for the ModelMBeanAttributeInfo.
    
    Specified by:
    
    getDescriptor in interface DescriptorRead
    
    Overrides:
    
    getDescriptor in class MBeanFeatureInfo
    
    Returns:
    Descriptor associated with the ModelMBeanAttributeInfo object.
    See Also:
    setDescriptor(javax.management.Descriptor)
  - setDescriptor
```
public void setDescriptor(Descriptor inDescriptor)
```
    Sets associated Descriptor (full replace) for the ModelMBeanAttributeDescriptor. If the new Descriptor is null, then the associated Descriptor reverts to a default descriptor. The Descriptor is validated before it is assigned. If the new Descriptor is invalid, then a RuntimeOperationsException wrapping an IllegalArgumentException is thrown.
    
    Specified by:
    
    setDescriptor in interface DescriptorAccess
    
    Parameters:
    inDescriptor - replaces the Descriptor associated with the ModelMBeanAttributeInfo
    
    Throws:
    
    RuntimeOperationsException - Wraps an IllegalArgumentException for an invalid Descriptor
    See Also:
    getDescriptor()
  - clone
```
public Object clone()
```
    Creates and returns a new ModelMBeanAttributeInfo which is a duplicate of this ModelMBeanAttributeInfo.
    
    Overrides:
    
    clone in class MBeanAttributeInfo
    
    Returns:
    a clone of this instance.
    
    Throws:
    
    RuntimeOperationsException - for illegal value for field Names or field Values. If the descriptor construction fails for any reason, this exception will be thrown.
    See Also:
    Cloneable
  - toString
```
public String toString()
```
    Returns a human-readable version of the ModelMBeanAttributeInfo instance.
    
    Overrides:
    
    toString in class MBeanAttributeInfo
    
    Returns:
    a string representation of the object.

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DRAFT ea-b138

Class ModelMBeanAttributeInfo

Field Summary

Fields inherited from class javax.management.MBeanFeatureInfo

Constructor Summary

Method Summary

Methods inherited from class javax.management.MBeanAttributeInfo

Methods inherited from class javax.management.MBeanFeatureInfo

Methods inherited from class java.lang.Object

Constructor Detail

ModelMBeanAttributeInfo

ModelMBeanAttributeInfo

ModelMBeanAttributeInfo

ModelMBeanAttributeInfo

ModelMBeanAttributeInfo

Method Detail

getDescriptor

setDescriptor

clone

toString