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Class com.sun.jaw.impl.agent.services.persistent.PersistentPropertySrv

java.lang.Object
   |
   +----com.sun.jaw.impl.agent.services.persistent.PersistentPropertySrv

public class PersistentPropertySrv
extends Object
implements Serializable

This class provides a simple implementation of persistent m-bean properties.

The service analyzes an m-bean for information on all its read/write properties. The values of these properties are either extracted from the m-bean and saved in a text file (property file) or extracted from a property file and set in the m-bean. Non-null property values are saved in a property file using the following format: [Property name]=[Property value].

The properties of an m-bean must adhere to the following rules:

must be a read and write property.
must be a not hidden property.
must be of type simple or primitive.

The following simple types are supported:

Boolean
Byte
Character
Double
Float
Integer
Long
Short
String

NOTE: The service does not support simple or primitive array types.

See Also:: Properties, PropertyDescriptor, Introspector

PersistentPropertySrv(): Default constructor.

initCmf(Framework, ObjectName, boolean, ModificationList): Initializes the persistent property service.
loadProperties(Object, String): Loads and sets object properties from a property file.
performLoadProperties(ObjectName, String): Loads and sets m-bean properties from a property file.
performSaveProperties(ObjectName, String): Analyzes and saves m-bean properties to a property file.
saveProperties(Object, String): Analyzes and saves object properties to a property file.

PersistentPropertySrv

 public PersistentPropertySrv()

Default constructor.

performSaveProperties

 public void performSaveProperties(ObjectName name,
                                   String file) throws InstanceNotFoundException, IOException

Analyzes and saves m-bean properties to a property file.

Parameters:: name - The object name of the object to be analyzed for properties.; file - The property file to save the property values in.
Throws: InstanceNotFoundException: The specified m-bean does not exist in the m-bean repository.
Throws: IOException: Signals that an I/O exception of some sort has occurred.

performLoadProperties

 public void performLoadProperties(ObjectName name,
                                   String file) throws InstanceNotFoundException, IOException, FileNotFoundException

Loads and sets m-bean properties from a property file.

Parameters:: name - The object name of the object to be analyzed for properties.; file - The property file to load the property values from.
Throws: InstanceNotFoundException: The specified m-bean does not exist in the m-bean repository.
Throws: IOException: Signals that an I/O exception of some sort has occurred.
Throws: FileNotFoundException: Signals that a file could not be found.

saveProperties

 public void saveProperties(Object object,
                            String file) throws IOException

Analyzes and saves object properties to a property file.

Parameters:: object - The object to be analyzed for properties.; file - The property file to save the property values in.
Throws: IOException: Signals that an I/O exception of some sort has occurred.

loadProperties

 public void loadProperties(Object object,
                            String file) throws IOException, FileNotFoundException

Loads and sets object properties from a property file.

Parameters:: object - The object to be analyzed for properties.; file - The property file to load the property values from.
Throws: IOException: Signals that an I/O exception of some sort has occurred.
Throws: FileNotFoundException: Signals that a file could not be found.

initCmf

 public void initCmf(Framework cmf,
                     ObjectName name,
                     boolean db,
                     ModificationList list) throws InstanceAlreadyExistException

Initializes the persistent property service.
For internal use only.

Parameters:: cmf - The core management framework to register the service with.; name - Object name.; db - Indicates if persistent storage is required.; list - The modification list to use for setting up parameters.
Throws: InstanceAlreadyExistException: The m-bean is already registered in the repository.

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