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java.lang.Object com.phoenixst.plexus.util.EdgeIteratorTraverserAdapter
public class EdgeIteratorTraverserAdapter
This class wraps an Iterator
over Edge
objects, presenting a Traverser
. It is assumed that each
Edge
is incident to the base node.
Constructor Summary | |
---|---|
EdgeIteratorTraverserAdapter(Graph graph,
Object baseNode,
Iterator edgeIter)
Creates a new EdgeIteratorTraverserAdapter . |
|
EdgeIteratorTraverserAdapter(Object baseNode,
Iterator edgeIter)
Creates a new unmodifiable EdgeIteratorTraverserAdapter . |
Method Summary | |
---|---|
Graph.Edge |
getEdge()
Returns the Edge which was traversed to get to
the last node returned by next() , or
null if no Edge was traversed. |
boolean |
hasNext()
|
Object |
next()
|
void |
remove()
|
void |
removeEdge()
Removes from the underlying Graph the
Edge that would be returned by getEdge() (optional operation). |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public EdgeIteratorTraverserAdapter(Object baseNode, Iterator edgeIter)
EdgeIteratorTraverserAdapter
. If this
constructor is used, remove()
and removeEdge()
will throw UnsupportedOperationExceptions
.
public EdgeIteratorTraverserAdapter(Graph graph, Object baseNode, Iterator edgeIter)
EdgeIteratorTraverserAdapter
.
Method Detail |
---|
public boolean hasNext()
hasNext
in interface Iterator
public Object next()
next
in interface Iterator
public void remove()
remove
in interface Iterator
public Graph.Edge getEdge()
Traverser
Edge
which was traversed to get to
the last node returned by next()
, or
null
if no Edge
was traversed. This
call can be made only if remove()
or removeEdge()
has not been called after the last
call to next()
.
getEdge
in interface Traverser
Edge
which was traversed to get to
the last node returned by next()
, or
null
if no Edge
was traversed.public void removeEdge()
Traverser
Graph
the
Edge
that would be returned by getEdge()
(optional operation). If no Edge
was
traversed (as in the root of a breadth-first search), this
method throws a IllegalStateException
. This
method can be called only once per call to next()
. The behavior of a traverser is unspecified if the
underlying graph structure is modified while the traversal is
in progress in any way other than by calling this method or
remove()
.
removeEdge
in interface Traverser
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