Package com.google.common.graph
Interface MutableGraph<N>

 Type Parameters:
N
 Node parameter type
 All Superinterfaces:
Graph<N>
,PredecessorsFunction<N>
,SuccessorsFunction<N>
@Beta public interface MutableGraph<N> extends Graph<N>
A subinterface ofGraph
which adds mutation methods. When mutation is not required, users should prefer theGraph
interface. Since:
 20.0
 Author:
 James Sexton, Joshua O'Madadhain


Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description boolean
addNode(N node)
Addsnode
if it is not already present.boolean
putEdge(EndpointPair<N> endpoints)
Adds an edge connectingendpoints
(in the order, if any, specified byendpoints
) if one is not already present.boolean
putEdge(N nodeU, N nodeV)
Adds an edge connectingnodeU
tonodeV
if one is not already present.boolean
removeEdge(EndpointPair<N> endpoints)
Removes the edge connectingendpoints
, if it is present.boolean
removeEdge(N nodeU, N nodeV)
Removes the edge connectingnodeU
tonodeV
, if it is present.boolean
removeNode(N node)
Removesnode
if it is present; all edges incident tonode
will also be removed.
Methods inherited from interface com.google.common.graph.Graph
adjacentNodes, allowsSelfLoops, degree, edges, equals, hasEdgeConnecting, hasEdgeConnecting, hashCode, incidentEdgeOrder, incidentEdges, inDegree, isDirected, nodeOrder, nodes, outDegree, predecessors, successors




Method Detail

addNode
@CanIgnoreReturnValue boolean addNode(N node)
Addsnode
if it is not already present.Nodes must be unique, just as
Map
keys must be. They must also be nonnull. Returns:
true
if the graph was modified as a result of this call

putEdge
@CanIgnoreReturnValue boolean putEdge(N nodeU, N nodeV)
Adds an edge connectingnodeU
tonodeV
if one is not already present.If the graph is directed, the resultant edge will be directed; otherwise, it will be undirected.
If
nodeU
andnodeV
are not already present in this graph, this method will silentlyadd
nodeU
andnodeV
to the graph. Returns:
true
if the graph was modified as a result of this call Throws:
IllegalArgumentException
 if the introduction of the edge would violateGraph.allowsSelfLoops()

putEdge
@CanIgnoreReturnValue boolean putEdge(EndpointPair<N> endpoints)
Adds an edge connectingendpoints
(in the order, if any, specified byendpoints
) if one is not already present.If this graph is directed,
endpoints
must be ordered and the added edge will be directed; if it is undirected, the added edge will be undirected.If this graph is directed,
endpoints
must be ordered.If either or both endpoints are not already present in this graph, this method will silently
add
each missing endpoint to the graph. Returns:
true
if the graph was modified as a result of this call Throws:
IllegalArgumentException
 if the introduction of the edge would violateGraph.allowsSelfLoops()
IllegalArgumentException
 if the endpoints are unordered and the graph is directed Since:
 27.1

removeNode
@CanIgnoreReturnValue boolean removeNode(N node)
Removesnode
if it is present; all edges incident tonode
will also be removed. Returns:
true
if the graph was modified as a result of this call

removeEdge
@CanIgnoreReturnValue boolean removeEdge(N nodeU, N nodeV)
Removes the edge connectingnodeU
tonodeV
, if it is present. Returns:
true
if the graph was modified as a result of this call

removeEdge
@CanIgnoreReturnValue boolean removeEdge(EndpointPair<N> endpoints)
Removes the edge connectingendpoints
, if it is present.If this graph is directed,
endpoints
must be ordered. Returns:
true
if the graph was modified as a result of this call Throws:
IllegalArgumentException
 if the endpoints are unordered and the graph is directed Since:
 27.1

