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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
Constructor Summary
|
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
|
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. |
int |
hashCode
()
Returns a hash code value for the object. |
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. |
String
|
toString
()
Returns a string representation of the object. |
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.
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type - The type or class name of the attribute.
-
description - A human readable description of the attribute.
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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.
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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.
This may be null in which case the attribute's descriptor will be empty.
-
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.
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Parameters:
-
name - The programmatic name of the attribute.
-
description - A human readable description of the attribute.
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getter - The method used for reading the attribute value. May be null if the property is write-only.
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setter - The method used for writing the attribute value. May be null if the attribute is read-only.
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Throws:
-
IntrospectionException
- There is a consistency problem in the definition of this attribute.
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.
-
-
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Returns:
-
the class name.
isReadable
public boolean isReadable()
-
Whether the value of the attribute can be read.
-
-
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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
iff
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()
,
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
MBeanFeatureInfo
-
-
Returns:
-
a hash code value for this object.
-
See Also:
-
Object.equals(java.lang.Object)
,
Hashtable