org.jboss.portal.portlet.state
Interface PropertyContext

All Known Implementing Classes:

AbstractPropertyContext

public interface PropertyContext

Exposes to the portlet the interface to deal with the personalization state.

Version:

$Revision: 6757 $

Author:

Julien Viet

Field Summary

static java.lang.String

PREFERENCES_ATTRIBUTE The attribute name under which the preferences can be accessed.

Method Summary

java.util.Set	getKeys() Return the key set.
Value	getValue(java.lang.String key) Return for a specified key its value or null if the value does not exist.
boolean	isReadOnly() Return true if the preferences are globally read only.
void	update(PropertyChange[] changes) Update the preferences.

Field Detail

PREFERENCES_ATTRIBUTE

static final java.lang.String PREFERENCES_ATTRIBUTE

The attribute name under which the preferences can be accessed.

See Also:

Constant Field Values

Method Detail

getKeys

java.util.Set getKeys()

Return the key set.

Returns:

the set of keys

getValue

Value getValue(java.lang.String key)
               throws java.lang.IllegalArgumentException

Return for a specified key its value or null if the value does not exist.

Parameters:

key - the lookup key

Returns:

the key value or null if it does not exist

Throws:

java.lang.IllegalArgumentException - if the key is null

isReadOnly

boolean isReadOnly()
                   throws java.lang.IllegalStateException

Return true if the preferences are globally read only. The value returned by this method is valid only during the action request. Any call to this method during the render request will produce a non accurate value.

Returns:

true if the preferences are read only

Throws:

java.lang.IllegalStateException - if this is called during render phase

update

void update(PropertyChange[] changes)
            throws java.lang.IllegalStateException

Update the preferences.

Throws:

java.lang.IllegalStateException - if the preferences is not writable

java.lang.IllegalArgumentException - if any change is not valid