Class BoundedBFSIterator<T>
java.lang.Object
com.ibm.wala.util.graph.traverse.BoundedBFSIterator<T>
- All Implemented Interfaces:
Iterator<T>
This class implements breadth-first search over a Graph, returning an Iterator of the nodes of
the graph in order of discovery. This class follows the outNodes of the graph nodes to define the
graph, but this behavior can be changed by overriding the getConnected method.
This traversal only visits nodes within k hops of a root.
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Field Summary
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Constructor Summary
ConstructorDescriptionBoundedBFSIterator
(Graph<T> G, Iterator<? extends T> nodes, int k) Construct a breadth-first enumerator across the (possibly improper) subset of nodes reachable from the nodes in the given enumeration.BoundedBFSIterator
(Graph<T> G, T N, int k) Construct a breadth-first iterator starting with a particular node in a directed graph. -
Method Summary
Modifier and TypeMethodDescriptiongetConnected
(T n) get the out edges of a given nodeint
boolean
hasNext()
Return whether there are any more nodes left to enumerate.next()
Find the next graph node in discover time order.void
remove()
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface java.util.Iterator
forEachRemaining
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Field Details
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G
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Constructor Details
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BoundedBFSIterator
Construct a breadth-first iterator starting with a particular node in a directed graph.- Parameters:
G
- the graph whose nodes to enumerate- Throws:
IllegalArgumentException
- if G is null
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BoundedBFSIterator
Construct a breadth-first enumerator across the (possibly improper) subset of nodes reachable from the nodes in the given enumeration.- Parameters:
G
- the graph whose nodes to enumeratenodes
- the set of nodes from which to start searching- Throws:
IllegalArgumentException
- if G is null
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Method Details
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hasNext
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next
Find the next graph node in discover time order.- Specified by:
next
in interfaceIterator<T>
- Returns:
- the next graph node in discover time order.
- Throws:
NoSuchElementException
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getConnected
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remove
- Specified by:
remove
in interfaceIterator<T>
- Throws:
UnsupportedOperationException
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getCurrentHops
public int getCurrentHops()- Returns:
- the currentHops
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