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org.eclipse.team.core.diff.provider
Class TwoWayDiff
java.lang.Object
org.eclipse.team.core.diff.provider.Diff
org.eclipse.team.core.diff.provider.TwoWayDiff
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All Implemented Interfaces:
-
IDiff,
ITwoWayDiff
-
Direct Known Subclasses:
-
ResourceDiff
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public class TwoWayDiff
- extends
Diff
- implements
ITwoWayDiff
Implementation of
ITwoWayDiff . By default, this implementation
returns null for the
getFromPath() and
getToPath() . Subclasses that support move diffs
should override these methods.
This class may be subclassed by clients.
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Since:
- 3.2
Field Summary
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protected static int
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FLAG_MASK
Constant (bit mask) that defines the area of the status that is reserved
for use by this abstract class for encoding the flags of the diff. |
Fields inherited from class org.eclipse.team.core.diff.provider.
Diff
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KIND_MASK
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Constructor Summary
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TwoWayDiff
(
IPath path,
int kind,
int flags)
Create a two-way diff |
Method Summary
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boolean
|
equals
(
Object obj)
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int
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getFlags
()
Returns flags which describe in more detail how a object has been affected. |
IPath
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getFromPath
()
Returns the full path (in the "before" state) from which this resource
(in the "after" state) was moved. |
IPath
|
getToPath
()
Returns the full path (in the "after" state) to which this resource
(in the "before" state) was moved. |
FLAG_MASK
protected static final int FLAG_MASK
- Constant (bit mask) that defines the area of the status that is reserved
for use by this abstract class for encoding the flags of the diff.
However, subclasses may include their own bits in the flag
as long as they do not overlap with the bits in the
FLAG_MASK
-
See Also:
-
Diff.getStatus() ,
Constant Field Values
TwoWayDiff
public TwoWayDiff(
IPath path,
int kind,
int flags)
- Create a two-way diff
-
Parameters:
-
path - the path of the model object that has changed -
kind - the kind of change -
flags - additional flags that describe the change
getFlags
public int getFlags()
-
Description copied from interface:
ITwoWayDiff
- Returns flags which describe in more detail how a object has been affected.
The following codes (bit masks) are used when kind is CHANGE , and
also when the object is involved in a move:
-
CONTENT - The bytes contained by the resource have
been altered.
-
REPLACE - The object
was deleted (either by a delete or move), and was subsequently re-created
(either by a create, move, or copy).
The following code is only used if kind is REMOVE
(or CHANGE in conjunction with REPLACE ):
-
MOVE_TO - The object has moved.
getToPath will return the path of where it was moved to.
The following code is only used if kind is ADD
(or CHANGE in conjunction with REPLACE ):
-
MOVE_FROM - The object has moved.
getFromPath will return the path of where it was moved from.
-
COPY_FROM - The object has copied.
getFromPath will return the path of where it was copied from.
A simple move operation would result in the following diff information.
If a object is moved from A to B (with no other changes to A or B),
then A will have kind REMOVE , with flag MOVE_TO ,
and getToPath on A will return the path for B.
B will have kind ADD , with flag MOVE_FROM ,
and getFromPath on B will return the path for A.
B's other flags will describe any other changes to the resource, as compared
to its previous location at A.
Note that the move flags only describe the changes to a single object; they
don't necessarily imply anything about the parent or children of the object.
If the children were moved as a consequence of a subtree move operation,
they will have corresponding move flags as well.
-
-
Specified by:
-
getFlags
in interface
ITwoWayDiff
-
-
Returns:
- the flags
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See Also:
-
ITwoWayDiff.CONTENT ,
ITwoWayDiff.MOVE_TO ,
ITwoWayDiff.MOVE_FROM ,
ITwoWayDiff.COPY_FROM ,
ITwoWayDiff.REPLACE ,
IDiff.getKind() ,
ITwoWayDiff.getFromPath() ,
ITwoWayDiff.getToPath()
getToPath
public
IPath getToPath()
-
Description copied from interface:
ITwoWayDiff
- Returns the full path (in the "after" state) to which this resource
(in the "before" state) was moved. This value is only valid if the
MOVE_TO change flag is set; otherwise,
null is returned.
Note: the returned path never has a trailing separator.
-
-
Specified by:
-
getToPath
in interface
ITwoWayDiff
-
-
Returns:
- a path, or
null
-
See Also:
-
ITwoWayDiff.getFromPath() ,
IDiff.getPath() ,
ITwoWayDiff.getFlags()
getFromPath
public
IPath getFromPath()
-
Description copied from interface:
ITwoWayDiff
- Returns the full path (in the "before" state) from which this resource
(in the "after" state) was moved. This value is only valid
if the
MOVE_FROM change flag is set; otherwise,
null is returned.
Note: the returned path never has a trailing separator.
-
-
Specified by:
-
getFromPath
in interface
ITwoWayDiff
-
-
Returns:
- a path, or
null
-
See Also:
-
ITwoWayDiff.getToPath() ,
IDiff.getPath() ,
ITwoWayDiff.getFlags()
equals
public boolean equals(
Object obj)
-
-
Overrides:
-
equals
in class
Diff
-
Guidelines for using Eclipse APIs.
Copyright (c) Eclipse contributors and others 2000, 2008. All rights reserved.
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