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org.eclipse.core.commands.operations
Class UndoContext
java.lang.Object
org.eclipse.core.commands.operations.UndoContext
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All Implemented Interfaces:
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IUndoContext
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Direct Known Subclasses:
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ObjectUndoContext
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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.
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Since:
- 3.1
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Method Summary
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String
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getLabel
()
Get the label that describes the undo context. |
boolean
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matches
(
IUndoContext context)
Return whether the specified context is considered a match for the
receiving context. |
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Methods inherited from class java.lang.
Object
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clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait
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UndoContext
public UndoContext()
getLabel
public
String getLabel()
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Get the label that describes the undo context. The default implementation
returns the empty String. Subclasses may override.
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Specified by:
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getLabel
in interface
IUndoContext
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Returns:
- the label for the context.
matches
public boolean matches(
IUndoContext context)
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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.
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Specified by:
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matches
in interface
IUndoContext
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Parameters:
-
context - the context to be checked against the receiving context.
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Returns:
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true if the receiving context can be considered a
match for the specified context, and false if it
cannot.
Guidelines for using Eclipse APIs.
Copyright (c) Eclipse contributors and others 2000, 2008. All rights reserved.
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