Package org.eclipse.pde.core
Interface IModelChangedEvent
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- All Known Implementing Classes:
ModelChangedEvent
public interface IModelChangedEvent
Model change events are fired by the model when it is changed from the last clean state. Model change listeners can use these events to update accordingly.- Since:
- 2.0
- Restriction:
- This interface is not intended to be implemented by clients.
- Restriction:
- This interface is not intended to be extended by clients.
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Field Summary
Fields Modifier and Type Field Description static int
CHANGE
indicates that a model object's property has been changed.static int
INSERT
Indicates a change where one or more objects are added to the model.static int
REMOVE
Indicates a change where one or more objects are removed from the model.static int
WORLD_CHANGED
Indicates that the model has been reloaded and that listeners should perform full refresh.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description Object[]
getChangedObjects()
Returns an array of model objects that are affected by the change.String
getChangedProperty()
Returns a name of the object's property that has been changed if change type is CHANGE.IModelChangeProvider
getChangeProvider()
Returns the provider that fired this event.int
getChangeType()
Returns the type of change that occured in the model (one of INSERT, REMOVE, CHANGE or WORLD_CHANGED ).Object
getNewValue()
When model change is of type CHANGE, this method is used to obtain the new value of the property (after the change).Object
getOldValue()
When model change is of type CHANGE, this method is used to obtain the old value of the property (before the change).
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Field Detail
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INSERT
static final int INSERT
Indicates a change where one or more objects are added to the model.- See Also:
- Constant Field Values
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REMOVE
static final int REMOVE
Indicates a change where one or more objects are removed from the model.- See Also:
- Constant Field Values
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WORLD_CHANGED
static final int WORLD_CHANGED
Indicates that the model has been reloaded and that listeners should perform full refresh.- See Also:
- Constant Field Values
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CHANGE
static final int CHANGE
indicates that a model object's property has been changed.- See Also:
- Constant Field Values
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Method Detail
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getChangeProvider
IModelChangeProvider getChangeProvider()
Returns the provider that fired this event.- Returns:
- the event provider
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getChangedObjects
Object[] getChangedObjects()
Returns an array of model objects that are affected by the change.- Returns:
- array of affected objects
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getChangedProperty
String getChangedProperty()
Returns a name of the object's property that has been changed if change type is CHANGE.- Returns:
- property that has been changed in the model object, or null if type is not CHANGE or if more than one property has been changed.
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getOldValue
Object getOldValue()
When model change is of type CHANGE, this method is used to obtain the old value of the property (before the change).- Returns:
- the old value of the changed property
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getNewValue
Object getNewValue()
When model change is of type CHANGE, this method is used to obtain the new value of the property (after the change).- Returns:
- the new value of the changed property.
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getChangeType
int getChangeType()
Returns the type of change that occured in the model (one of INSERT, REMOVE, CHANGE or WORLD_CHANGED ).- Returns:
- type of change
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