org.norther.tammi.root.ojb.util
Class PersistentFieldVariableImpl

java.lang.Object
  org.norther.tammi.root.ojb.util.PersistentFieldVariableImpl

All Implemented Interfaces:

Serializable, PersistentField

public class PersistentFieldVariableImpl
extends Object
implements PersistentField, Serializable

Implements a persistent field accessor for attributes of Variables. Other types of MBeans and Java Beans are supported as well.

Author:

Ilkka Priha

See Also:

Serialized Form

Field Summary

static String

PATH_TOKEN_EXPRESSION The field path delimiter.

Constructor Summary

PersistentFieldVariableImpl(Class type, String name)
Constructs a new persistent field.

Method Summary

Object	get(Object variable) Gets the value of the attribute of the specified variable.
protected Object	get(Object variable, PropertyDescriptor pd) Gets the value of the specified property of the specified variable.
protected Object	get(Object variable, VariableAttributeInfo info) Gets the value of the specified attribute of the specified variable.
protected Object	getAttributeDescriptor() Gets the attribute descriptor.
protected Object[]	getAttributeGraph(Object variable) Gets the attribute graph.
Class	getDeclaringClass()
String	getName()
Class	getType()
void	set(Object variable, Object value) Sets the value of the attribute of the specified variable.
protected void	set(Object variable, PropertyDescriptor pd, Object value) Sets the value of the specified property of the specified variable.
protected void	set(Object variable, VariableAttributeInfo info, Object value) Sets the value of the specified attribute of the specified variable.
String	toString()
boolean	usesAccessorsAndMutators()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

PATH_TOKEN_EXPRESSION

public static final String PATH_TOKEN_EXPRESSION

The field path delimiter.

See Also:

Constant Field Values

Constructor Detail

PersistentFieldVariableImpl

public PersistentFieldVariableImpl(Class type,
                                   String name)

Constructs a new persistent field.

Parameters:

type - the variable type.

name - the attribute name.

Method Detail

getName

public String getName()

Specified by:

getName in interface PersistentField

getType

public Class getType()

Specified by:

getType in interface PersistentField

getDeclaringClass

public Class getDeclaringClass()

Specified by:

getDeclaringClass in interface PersistentField

usesAccessorsAndMutators

public boolean usesAccessorsAndMutators()

Specified by:

usesAccessorsAndMutators in interface PersistentField

get

public Object get(Object variable)

Gets the value of the attribute of the specified variable.

For Variables, a string representation is returned if the attribute is serialized.

Specified by:

get in interface PersistentField

Parameters:

variable - the variable.

Returns:

the attribute value.

Throws:

MetadataException - on errors.

set

public void set(Object variable,
                Object value)
         throws PersistenceBrokerException

Sets the value of the attribute of the specified variable.

Specified by:

set in interface PersistentField

Parameters:

variable - the variable.

value - the attribute value.

Throws:

PersistenceBrokerException - on errors.

toString

public String toString()

Overrides:

toString in class Object

get

protected Object get(Object variable,
                     VariableAttributeInfo info)

Gets the value of the specified attribute of the specified variable.

Parameters:

variable - the variable.

info - the attribute info.

Returns:

the attribute value.

Throws:

MetadataException - on errors.

get

protected Object get(Object variable,
                     PropertyDescriptor pd)

Gets the value of the specified property of the specified variable.

Parameters:

variable - the variable.

pd - the property descriptor.

Returns:

the attribute value.

Throws:

MetadataException - on errors.

set

protected void set(Object variable,
                   VariableAttributeInfo info,
                   Object value)

Sets the value of the specified attribute of the specified variable.

Parameters:

variable - the variable.

info - the attribute info.

value - the attribute value.

Throws:

MetadataException - on errors.

set

protected void set(Object variable,
                   PropertyDescriptor pd,
                   Object value)

Sets the value of the specified property of the specified variable.

Parameters:

variable - the variable.

pd - the property descriptor.

value - the attribute value.

Throws:

MetadataException - on errors.

getAttributeDescriptor

protected Object getAttributeDescriptor()

Gets the attribute descriptor.

Returns:

the attribute descriptor.

Throws:

MetadataException - on introspection errors.

getAttributeGraph

protected Object[] getAttributeGraph(Object variable)

Gets the attribute graph.

Parameters:

variable - the variable.

Returns:

the attribute graph.

Throws:

MetadataException - on introspection errors.