org.apache.wicket.util.diff.myers
Class DiffNode
java.lang.Object
org.apache.wicket.util.diff.myers.PathNode
org.apache.wicket.util.diff.myers.DiffNode
public final class DiffNode
- extends PathNode
A diffnode in a diffpath.
A DiffNode and its previous node mark a delta between two input sequences, that is, two differing
subsequences between (possibly zero length) matching sequences.
DiffNodes
and Snakes
allow for compression of diffpaths, as each
snake is represented by a single Snake
node and each contiguous series of
insertions and deletions is represented by a single DiffNodes
.
- Version:
- $Revision: 1.1 $ $Date: 2006/03/12 00:24:21 $
- Author:
- Juanco Anez
Fields inherited from class org.apache.wicket.util.diff.myers.PathNode |
i, j, prev |
Constructor Summary |
DiffNode(int i,
int j,
PathNode prev)
Constructs a DiffNode. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
DiffNode
public DiffNode(int i,
int j,
PathNode prev)
- Constructs a DiffNode.
DiffNodes are compressed. That means that the path pointed to by the prev
parameter will be followed using PathNode.previousSnake()
until a non-diff node is
found.
- Parameters:
i
- the position in the original sequencej
- the position in the revised sequenceprev
- the previous node in the path.
isSnake
public boolean isSnake()
- Is this node a
Snake node
?
- Specified by:
isSnake
in class PathNode
- Returns:
- false, always
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