org.jgraph.graph
Class ParentMap
java.lang.Object
org.jgraph.graph.ParentMap
- Serializable
public class ParentMap
extends java.lang.Object
implements Serializable
An object that describes relations between childs and parents.
class | ParentMap.Entry - Object that represents the relation between a child an a parent.
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protected Set | changedNodes - Set of changed changedNodes for the parent map.
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protected Map | childCount - Maps parents to integers with the future number of childs.
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protected ArrayList | entries - Contents of the parent map.
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ParentMap() - Constructs a
ParentMap object.
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ParentMap(Object[] children, Object parent) - Constructs a
ParentMap object.
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void | addEntries(Object[] children, Object parent) - Adds all child parent pairs using addEntry.
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void | addEntry(Object child, Object parent) - Add a new entry for this child, parent pair to the parent map.
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ParentMap | clone(Map map) - Creates a new parent map based on this parent map, where the child and
parents are mapped using
map .
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static ParentMap | create(GraphModel m, Object[] c, boolean remove, boolean onlyUsePassedInCells) - Returns a parent map that represents the insertion or removal of
cells in model based on remove .
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Iterator | entries() - Returns an
Iterator for the entries in the map.
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Set | getChangedNodes() - Returns a
Set for the nodes, childs and parents, in this
parent map.
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int | size() - Returns the number of entries.
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String | toString()
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changedNodes
protected Set changedNodes
Set of changed changedNodes for the parent map. Includes childs and
parents.
childCount
protected Map childCount
Maps parents to integers with the future number of childs.
entries
protected ArrayList entries
Contents of the parent map.
ParentMap
public ParentMap()
Constructs a ParentMap
object.
ParentMap
public ParentMap(Object[] children,
Object parent)
Constructs a ParentMap
object.
addEntries
public void addEntries(Object[] children,
Object parent)
Adds all child parent pairs using addEntry.
addEntry
public void addEntry(Object child,
Object parent)
Add a new entry for this child, parent pair to the parent map. The child
and parent are added to the set of changed nodes. Note: The previous
parent is changed on execution of this parent map and must be added by
the GraphModel and reflected by the GraphChange.getChanged method. TODO:
In general, the GraphModel should be in charge of computing the set of
changed cells.
clone
public ParentMap clone(Map map)
Creates a new parent map based on this parent map, where the child and
parents are mapped using
map
. If one the cells is not in
map
, then the original cell is used instead.
create
public static ParentMap create(GraphModel m,
Object[] c,
boolean remove,
boolean onlyUsePassedInCells)
Returns a parent map that represents the insertion or removal of
cells
in
model
based on
remove
.
Unselected childs of selected nodes are moved to the first unselected
parent of that node.
Note: Consequently, cells "move up" one level when
their parent is removed.
Note: onlyUsePassedInCells can
be used to indicate if only cells from the passed-in cell array are
allowed parents. This is only used if remove is not true.
entries
public Iterator entries()
Returns an Iterator
for the entries in the map.
getChangedNodes
public Set getChangedNodes()
Returns a Set
for the nodes, childs and parents, in this
parent map.
size
public int size()
Returns the number of entries.
toString
public String toString()
Copyright (C) 2001-2006 Gaudenz Alder. All rights reserved.