org.eigenbase.util.property
Class TriggerableProperties
java.lang.Object
java.util.Dictionary<K,V>
java.util.Hashtable<java.lang.Object,java.lang.Object>
java.util.Properties
org.eigenbase.util.property.TriggerableProperties
- All Implemented Interfaces:
- java.io.Serializable, java.lang.Cloneable, java.util.Map<java.lang.Object,java.lang.Object>
public class TriggerableProperties
- extends java.util.Properties
Base class for properties which can respond to triggers.
If you wish to be notified of changes to properties, use the
Property.addTrigger(Trigger)
method to register a callback.
- Since:
- 5 July 2005
- Version:
- $Id: //open/dt/dev/farrago/src/org/eigenbase/util/property/TriggerableProperties.java#1 $
- Author:
- Julian Hyde
- See Also:
- Serialized Form
Fields inherited from class java.util.Properties |
defaults |
Method Summary |
Property[] |
getProperties()
Returns an array of registered properties. |
void |
register(Property property)
Registers a property with this properties object to make it available
for callbacks. |
java.lang.Object |
setProperty(java.lang.String key,
java.lang.String value)
Sets the value of a property. |
boolean |
triggersAreEnabled()
Whether triggers are enabled. |
Methods inherited from class java.util.Properties |
getProperty, getProperty, list, list, load, load, loadFromXML, propertyNames, save, store, store, storeToXML, storeToXML, stringPropertyNames |
Methods inherited from class java.util.Hashtable |
clear, clone, contains, containsKey, containsValue, elements, entrySet, equals, get, hashCode, isEmpty, keys, keySet, put, putAll, rehash, remove, size, toString, values |
Methods inherited from class java.lang.Object |
finalize, getClass, notify, notifyAll, wait, wait, wait |
triggers
protected final java.util.Map triggers
properties
protected final java.util.Map properties
TriggerableProperties
protected TriggerableProperties()
setProperty
public java.lang.Object setProperty(java.lang.String key,
java.lang.String value)
- Sets the value of a property.
If the previous value does not equal the new value, executes any
Trigger
s associated with the property, in order of their
phase
.
- Overrides:
setProperty
in class java.util.Properties
- Parameters:
key
- value
-
- Returns:
- the old value
triggersAreEnabled
public boolean triggersAreEnabled()
- Whether triggers are enabled.
Derived class can override.
register
public void register(Property property)
- Registers a property with this properties object to make it available
for callbacks.
getProperties
public Property[] getProperties()
- Returns an array of registered properties.