- All Implemented Interfaces:
Serializable
,Cloneable
,DescriptorRead
,ModelMBeanInfo
Java resources wishing to be manageable instantiate the ModelMBean using the MBeanServer's createMBean method. The resource then sets the ModelMBeanInfo and Descriptors for the ModelMBean instance. The attributes and operations exposed via the ModelMBeanInfo for the ModelMBean are accessible from MBeans, connectors/adaptors like other MBeans. Through the Descriptors, values and methods in the managed application can be defined and mapped to attributes and operations of the ModelMBean. This mapping can be defined during development in a file or dynamically and programmatically at runtime.
Every ModelMBean which is instantiated in the MBeanServer becomes manageable: its attributes and operations become remotely accessible through the connectors/adaptors connected to that MBeanServer. A Java object cannot be registered in the MBeanServer unless it is a JMX compliant MBean. By instantiating a ModelMBean, resources are guaranteed that the MBean is valid. MBeanException and RuntimeOperationsException must be thrown on every public method. This allows for wrapping exceptions from distributed communications (RMI, EJB, etc.)
The serialVersionUID of this class is
-1935722590756516193L
.
- Since:
- 1.5
- See Also:
-
Constructor Summary
ConstructorDescriptionModelMBeanInfoSupport
(String className, String description, ModelMBeanAttributeInfo[] attributes, ModelMBeanConstructorInfo[] constructors, ModelMBeanOperationInfo[] operations, ModelMBeanNotificationInfo[] notifications) Creates a ModelMBeanInfoSupport with the provided information, but the descriptor is a default.ModelMBeanInfoSupport
(String className, String description, ModelMBeanAttributeInfo[] attributes, ModelMBeanConstructorInfo[] constructors, ModelMBeanOperationInfo[] operations, ModelMBeanNotificationInfo[] notifications, Descriptor mbeandescriptor) Creates a ModelMBeanInfoSupport with the provided information and the descriptor given in parameter.Constructs a ModelMBeanInfoSupport which is a duplicate of the given ModelMBeanInfo. -
Method Summary
Modifier and TypeMethodDescriptionclone()
Returns a shallow clone of this instance.getAttribute
(String inName) Returns a ModelMBeanAttributeInfo requested by name.getConstructor
(String inName) Returns the ModelMBeanConstructorInfo requested by name.Get the descriptor of this MBeanInfo.getDescriptor
(String inDescriptorName) Returns a Descriptor requested by name.getDescriptor
(String inDescriptorName, String inDescriptorType) Returns a Descriptor requested by name and descriptorType.getDescriptors
(String inDescriptorType) Returns a Descriptor array consisting of all Descriptors for the ModelMBeanInfo of type inDescriptorType.Returns the ModelMBean's descriptor which contains MBean wide policies.getNotification
(String inName) Returns a ModelMBeanNotificationInfo requested by name.getOperation
(String inName) Returns a ModelMBeanOperationInfo requested by name.void
setDescriptor
(Descriptor inDescriptor, String inDescriptorType) Sets descriptors in the info array of type inDescriptorType for the ModelMBean.void
setDescriptors
(Descriptor[] inDescriptors) Adds or replaces descriptors in the ModelMBeanInfo.void
setMBeanDescriptor
(Descriptor inMBeanDescriptor) Sets the ModelMBean's descriptor.Methods declared in class javax.management.MBeanInfo
equals, getAttributes, getClassName, getConstructors, getDescription, getNotifications, getOperations
Methods declared in class java.lang.Object
finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods declared in interface javax.management.modelmbean.ModelMBeanInfo
getAttributes, getClassName, getConstructors, getDescription, getNotifications, getOperations
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Constructor Details
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ModelMBeanInfoSupport
Constructs a ModelMBeanInfoSupport which is a duplicate of the given ModelMBeanInfo. The returned object is a shallow copy of the given object. Neither the Descriptor nor the contained arrays (ModelMBeanAttributeInfo[]
etc) are cloned. This method is chiefly of interest to modify the Descriptor of the returned instance viasetDescriptor
without affecting the Descriptor of the original object.- Parameters:
mbi
- the ModelMBeanInfo instance from which the ModelMBeanInfo being created is initialized.
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ModelMBeanInfoSupport
public ModelMBeanInfoSupport(String className, String description, ModelMBeanAttributeInfo[] attributes, ModelMBeanConstructorInfo[] constructors, ModelMBeanOperationInfo[] operations, ModelMBeanNotificationInfo[] notifications) Creates a ModelMBeanInfoSupport with the provided information, but the descriptor is a default. The default descriptor is: name=className, descriptorType="mbean", displayName=className, persistPolicy="never", log="F", visibility="1"- Parameters:
className
- classname of the MBeandescription
- human readable description of the ModelMBeanattributes
- array of ModelMBeanAttributeInfo objects which have descriptorsconstructors
- array of ModelMBeanConstructorInfo objects which have descriptorsoperations
- array of ModelMBeanOperationInfo objects which have descriptorsnotifications
- array of ModelMBeanNotificationInfo objects which have descriptors
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ModelMBeanInfoSupport
public ModelMBeanInfoSupport(String className, String description, ModelMBeanAttributeInfo[] attributes, ModelMBeanConstructorInfo[] constructors, ModelMBeanOperationInfo[] operations, ModelMBeanNotificationInfo[] notifications, Descriptor mbeandescriptor) Creates a ModelMBeanInfoSupport with the provided information and the descriptor given in parameter.- Parameters:
className
- classname of the MBeandescription
- human readable description of the ModelMBeanattributes
- array of ModelMBeanAttributeInfo objects which have descriptorsconstructors
- array of ModelMBeanConstructorInfo objects which have descriptoroperations
- array of ModelMBeanOperationInfo objects which have descriptornotifications
- array of ModelMBeanNotificationInfo objects which have descriptormbeandescriptor
- descriptor to be used as the MBeanDescriptor containing MBean wide policy. If the descriptor is null, a default descriptor will be constructed. The default descriptor is: name=className, descriptorType="mbean", displayName=className, persistPolicy="never", log="F", visibility="1". If the descriptor does not contain all of these fields, the missing ones are added with these default values.- Throws:
RuntimeOperationsException
- Wraps an IllegalArgumentException for invalid descriptor passed in parameter. (seegetMBeanDescriptor
for the definition of a valid MBean descriptor.)
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-
Method Details
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clone
Returns a shallow clone of this instance. Neither the Descriptor nor the contained arrays (ModelMBeanAttributeInfo[]
etc) are cloned. This method is chiefly of interest to modify the Descriptor of the clone viasetDescriptor
without affecting the Descriptor of the original object.- Specified by:
clone
in interfaceModelMBeanInfo
- Overrides:
clone
in classMBeanInfo
- Returns:
- a shallow clone of this instance.
- See Also:
-
getDescriptors
public Descriptor[] getDescriptors(String inDescriptorType) throws MBeanException, RuntimeOperationsException Description copied from interface:ModelMBeanInfo
Returns a Descriptor array consisting of all Descriptors for the ModelMBeanInfo of type inDescriptorType.- Specified by:
getDescriptors
in interfaceModelMBeanInfo
- Parameters:
inDescriptorType
- value of descriptorType field that must be set for the descriptor to be returned. Must be "mbean", "attribute", "operation", "constructor" or "notification". If it is null or empty then all types will be returned.- Returns:
- Descriptor array containing all descriptors for the ModelMBean if type inDescriptorType.
- Throws:
MBeanException
- Wraps a distributed communication Exception.RuntimeOperationsException
- Wraps an IllegalArgumentException when the descriptorType in parameter is not one of: "mbean", "attribute", "operation", "constructor", "notification", empty or null.- See Also:
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setDescriptors
public void setDescriptors(Descriptor[] inDescriptors) throws MBeanException, RuntimeOperationsException Description copied from interface:ModelMBeanInfo
Adds or replaces descriptors in the ModelMBeanInfo.- Specified by:
setDescriptors
in interfaceModelMBeanInfo
- Parameters:
inDescriptors
- The descriptors to be set in the ModelMBeanInfo. Null elements of the list will be ignored. All descriptors must have name and descriptorType fields.- Throws:
MBeanException
- Wraps a distributed communication Exception.RuntimeOperationsException
- Wraps an IllegalArgumentException for a null or invalid descriptor.- See Also:
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getDescriptor
public Descriptor getDescriptor(String inDescriptorName) throws MBeanException, RuntimeOperationsException Returns a Descriptor requested by name.- Parameters:
inDescriptorName
- The name of the descriptor.- Returns:
- Descriptor containing a descriptor for the ModelMBean with the same name. If no descriptor is found, null is returned.
- Throws:
MBeanException
- Wraps a distributed communication Exception.RuntimeOperationsException
- Wraps an IllegalArgumentException for null name.- See Also:
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getDescriptor
public Descriptor getDescriptor(String inDescriptorName, String inDescriptorType) throws MBeanException, RuntimeOperationsException Description copied from interface:ModelMBeanInfo
Returns a Descriptor requested by name and descriptorType.- Specified by:
getDescriptor
in interfaceModelMBeanInfo
- Parameters:
inDescriptorName
- The name of the descriptor.inDescriptorType
- The type of the descriptor being requested. If this is null or empty then all types are searched. Valid types are 'mbean', 'attribute', 'constructor' 'operation', and 'notification'. This value will be equal to the 'descriptorType' field in the descriptor that is returned.- Returns:
- Descriptor containing the descriptor for the ModelMBean with the same name and descriptorType. If no descriptor is found, null is returned.
- Throws:
MBeanException
- Wraps a distributed communication Exception.RuntimeOperationsException
- Wraps an IllegalArgumentException for a null descriptor name or null or invalid type. The type must be "mbean","attribute", "constructor", "operation", or "notification".- See Also:
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setDescriptor
public void setDescriptor(Descriptor inDescriptor, String inDescriptorType) throws MBeanException, RuntimeOperationsException Description copied from interface:ModelMBeanInfo
Sets descriptors in the info array of type inDescriptorType for the ModelMBean. The setDescriptor method of the corresponding ModelMBean*Info will be called to set the specified descriptor.- Specified by:
setDescriptor
in interfaceModelMBeanInfo
- Parameters:
inDescriptor
- The descriptor to be set in the ModelMBean. It must NOT be null. All descriptors must have name and descriptorType fields.inDescriptorType
- The type of the descriptor being set. If this is null then the descriptorType field in the descriptor is used. If specified this value must be set in the descriptorType field in the descriptor. Must be "mbean","attribute", "constructor", "operation", or "notification".- Throws:
MBeanException
- Wraps a distributed communication Exception.RuntimeOperationsException
- Wraps an IllegalArgumentException for illegal or null arguments or if the name field of the descriptor is not found in the corresponding MBeanAttributeInfo or MBeanConstructorInfo or MBeanNotificationInfo or MBeanOperationInfo.- See Also:
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getAttribute
public ModelMBeanAttributeInfo getAttribute(String inName) throws MBeanException, RuntimeOperationsException Description copied from interface:ModelMBeanInfo
Returns a ModelMBeanAttributeInfo requested by name.- Specified by:
getAttribute
in interfaceModelMBeanInfo
- Parameters:
inName
- The name of the ModelMBeanAttributeInfo to get. If no ModelMBeanAttributeInfo exists for this name null is returned.- Returns:
- the attribute info for the named attribute, or null if there is none.
- Throws:
MBeanException
- Wraps a distributed communication Exception.RuntimeOperationsException
- Wraps an IllegalArgumentException for a null attribute name.
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getOperation
public ModelMBeanOperationInfo getOperation(String inName) throws MBeanException, RuntimeOperationsException Description copied from interface:ModelMBeanInfo
Returns a ModelMBeanOperationInfo requested by name.- Specified by:
getOperation
in interfaceModelMBeanInfo
- Parameters:
inName
- The name of the ModelMBeanOperationInfo to get. If no ModelMBeanOperationInfo exists for this name null is returned.- Returns:
- the operation info for the named operation, or null if there is none.
- Throws:
MBeanException
- Wraps a distributed communication Exception.RuntimeOperationsException
- Wraps an IllegalArgumentException for a null operation name.
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getConstructor
public ModelMBeanConstructorInfo getConstructor(String inName) throws MBeanException, RuntimeOperationsException Returns the ModelMBeanConstructorInfo requested by name. If no ModelMBeanConstructorInfo exists for this name null is returned.- Parameters:
inName
- the name of the constructor.- Returns:
- the constructor info for the named constructor, or null if there is none.
- Throws:
MBeanException
- Wraps a distributed communication Exception.RuntimeOperationsException
- Wraps an IllegalArgumentException for a null constructor name.
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getNotification
public ModelMBeanNotificationInfo getNotification(String inName) throws MBeanException, RuntimeOperationsException Description copied from interface:ModelMBeanInfo
Returns a ModelMBeanNotificationInfo requested by name.- Specified by:
getNotification
in interfaceModelMBeanInfo
- Parameters:
inName
- The name of the ModelMBeanNotificationInfo to get. If no ModelMBeanNotificationInfo exists for this name null is returned.- Returns:
- the info for the named notification, or null if there is none.
- Throws:
MBeanException
- Wraps a distributed communication Exception.RuntimeOperationsException
- Wraps an IllegalArgumentException for a null notification name.
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getDescriptor
Description copied from class:MBeanInfo
Get the descriptor of this MBeanInfo. Changing the returned value will have no affect on the original descriptor.- Specified by:
getDescriptor
in interfaceDescriptorRead
- Overrides:
getDescriptor
in classMBeanInfo
- Returns:
- a descriptor that is either immutable or a copy of the original.
- Since:
- 1.6
-
getMBeanDescriptor
Description copied from interface:ModelMBeanInfo
Returns the ModelMBean's descriptor which contains MBean wide policies. This descriptor contains metadata about the MBean and default policies for persistence and caching.
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 MBean name. descriptorType String Must be "mbean". displayName String Name of MBean to be used in displays. persistPolicy String One of: OnUpdate|OnTimer|NoMoreOftenThan|OnUnregister|Always|Never. See the section "MBean Descriptor Fields" in the JMX specification document. persistLocation String The fully qualified directory name where the MBean should be persisted (if appropriate). persistFile String File name into which the MBean should be persisted. persistPeriod Number Frequency of persist cycle in seconds, for OnTime and NoMoreOftenThan PersistPolicy currencyTimeLimit Number How long cached value is valid: <0 never, =0 always, >0 seconds. log String t: log all notifications, f: log no notifications. logfile String Fully qualified filename to log events to. visibility Number 1-4 where 1: always visible 4: rarely visible. export String Name to be used to export/expose this MBean so that it is findable by other JMX Agents. presentationString String XML formatted string to allow presentation of data to be associated with the MBean. The default descriptor is: name=className,descriptorType="mbean", displayName=className, persistPolicy="never",log="F",visibility="1" If the descriptor does not contain all these fields, they will be added with these default values.
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 thecurrencyTimeLimit
field. To indicate that it is always valid, use a very large number for this field.- Specified by:
getMBeanDescriptor
in interfaceModelMBeanInfo
- Returns:
- the MBean descriptor.
- Throws:
MBeanException
- Wraps a distributed communication Exception.- See Also:
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setMBeanDescriptor
public void setMBeanDescriptor(Descriptor inMBeanDescriptor) throws MBeanException, RuntimeOperationsException Description copied from interface:ModelMBeanInfo
Sets the ModelMBean's descriptor. This descriptor contains default, MBean wide metadata about the MBean and default policies for persistence and caching. This operation does a complete replacement of the descriptor, no merging is done. If the descriptor to set to is null then the default descriptor will be created. The default descriptor is: name=className,descriptorType="mbean", displayName=className, persistPolicy="never",log="F",visibility="1" If the descriptor does not contain all these fields, they will be added with these default values. SeegetMBeanDescriptor
method javadoc for description of valid field names.- Specified by:
setMBeanDescriptor
in interfaceModelMBeanInfo
- Parameters:
inMBeanDescriptor
- the descriptor to set.- Throws:
MBeanException
- Wraps a distributed communication Exception.RuntimeOperationsException
- Wraps an IllegalArgumentException for invalid descriptor.- See Also:
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