public class UndoContext extends Object implements IUndoContext
A simple, lightweight undo context that can be used to tag any operation. It does not provided a specialized label. This class may be instantiated by clients. This class may also be subclassed.
Constructor and Description |
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UndoContext() |
Modifier and Type | Method and Description |
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String |
getLabel()
Get the label that describes the undo context.
|
boolean |
matches(IUndoContext context)
Return whether the specified context is considered a match for the
receiving context.
|
public String getLabel()
Get the label that describes the undo context. The default implementation returns the empty String. Subclasses may override.
getLabel
in interface IUndoContext
public boolean matches(IUndoContext context)
Return whether the specified context is considered a match for the receiving context. When a context matches another context, operations that have the context are considered to also have the matching context. The default implementation checks whether the supplied context is identical to this context. Subclasses may override.
matches
in interface IUndoContext
context
- the context to be checked against the receiving context.true
if the receiving context can be considered a
match for the specified context, and false
if it
cannot.
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