uk.org.ogsadai.common.properties
Class Property

java.lang.Object
  |
  +--java.util.Observable
        |
        +--uk.org.ogsadai.common.properties.Property

Direct Known Subclasses:

CallbackSelfNotifyingProperty, DynamicProperty, SelfNotifyingProperty, SelfUpdatingProperty, StaticProperty

public abstract class Property

extends java.util.Observable

Abstract class representing a property - a qualified name and a value.

The notion of a security context is supported in case accessing the value requires authorisation of some kind.

Author:

The OGSA-DAI Project Team

Field Summary

private static java.lang.String	COPYRIGHT_NOTICE
protected javax.xml.namespace.QName	mName Property name
protected SecurityContext	mSecurityContext Security context for property access authorisation

Fields inherited from class java.util.Observable

Constructor Summary

Property()

Method Summary

javax.xml.namespace.QName	getName() Return the name of the property.
abstract java.lang.Object	getValue() Return the property value.
void	setName(javax.xml.namespace.QName name) Set the property name.
void	setSecurityContext(SecurityContext sec) Set the security context for authorising property accessing and updating.
abstract void	setValue(java.lang.Object object) Set the property value.

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Field Detail

COPYRIGHT_NOTICE

private static final java.lang.String COPYRIGHT_NOTICE

See Also:

Constant Field Values

mName

protected javax.xml.namespace.QName mName

Property name

mSecurityContext

protected SecurityContext mSecurityContext

Security context for property access authorisation

Constructor Detail

Property

public Property()

Method Detail

getName

public javax.xml.namespace.QName getName()

Return the name of the property.

Returns:

property name.

getValue

public abstract java.lang.Object getValue()
                                   throws PropertyValueException

Return the property value.

Returns:

the value for the property or null if it has not been set.

Throws:

PropertyValueException - if an error occurs when obtaining the value.

setName

public void setName(javax.xml.namespace.QName name)

Set the property name.

Parameters:

name - Property name.

setValue

public abstract void setValue(java.lang.Object object)
                       throws PropertyImmutableException,
                              PropertyValueException

Set the property value.

Parameters:

object - Property value.

Throws:

PropertyValueException - if an error occurs when setting the value.

PropertyImmutableException - if the property is immutable and so cannot be updated.

setSecurityContext

public void setSecurityContext(SecurityContext sec)

Set the security context for authorising property accessing and updating.

Parameters:

sec - Security context.