org.jboss.portal.server.plugins.preferences
Class MergedPreferenceSet

java.lang.Object
  org.jboss.portal.server.plugins.preferences.MergedPreferenceSet

All Implemented Interfaces:

PreferenceSet

public class MergedPreferenceSet
extends java.lang.Object
implements PreferenceSet

Implements a preference set that use an merge strategy.

Constructor Summary

MergedPreferenceSet(PreferenceSet[] sets, MergeStrategy strategy)

Method Summary

Preference	getPreference(java.lang.String key) Return the preference for the given key.
Value	getValue(java.lang.String key) Return the value for the given key or null if it does not exist.
boolean	isReadOnly(java.lang.String key) Return the read only value for the given preference.
java.util.Set	keySet() Return the key set of all the preferences.
void	setReadOnly(java.lang.String key, boolean readOnly) Update the read only value for the given key.
void	setValue(java.lang.String key, Value value) Update the value of the given key.

Methods inherited from class java.lang.Object

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

Constructor Detail

MergedPreferenceSet

public MergedPreferenceSet(PreferenceSet[] sets,
                           MergeStrategy strategy)

Method Detail

getPreference

public Preference getPreference(java.lang.String key)

Description copied from interface: PreferenceSet

Return the preference for the given key. If no preference exists it must return null.

Specified by:

getPreference in interface PreferenceSet

Parameters:

key - the requested key

Returns:

the requested preference or null if it does not exist

getValue

public Value getValue(java.lang.String key)

Description copied from interface: PreferenceSet

Return the value for the given key or null if it does not exist.

Specified by:

getValue in interface PreferenceSet

Parameters:

key - the requested key

Returns:

the requested value or null if it does not exist

isReadOnly

public boolean isReadOnly(java.lang.String key)

Description copied from interface: PreferenceSet

Return the read only value for the given preference.

Specified by:

isReadOnly in interface PreferenceSet

Parameters:

key - the requested key

Returns:

the read only value

keySet

public java.util.Set keySet()

Description copied from interface: PreferenceSet

Return the key set of all the preferences.

Specified by:

keySet in interface PreferenceSet

setReadOnly

public void setReadOnly(java.lang.String key,
                        boolean readOnly)

Description copied from interface: PreferenceSet

Update the read only value for the given key. Implementation can throw an unsupported operation exception when it is abnormal to perform an update.

Specified by:

setReadOnly in interface PreferenceSet

Parameters:

key - the key to update

readOnly - the new read only value

setValue

public void setValue(java.lang.String key,
                     Value value)

Description copied from interface: PreferenceSet

Update the value of the given key. If the value object is null it means that the preference must be removed. Implementation can throw an unsupported operation exception when it is abnormal to perform an update.

Specified by:

setValue in interface PreferenceSet

Parameters:

key - the key to update

value - the new value