Class ForwardingGraph<N>
- All Implemented Interfaces:
BaseGraph<N>,Graph<N>,PredecessorsFunction<N>,SuccessorsFunction<N>
- Direct Known Subclasses:
Graphs.TransposedGraph,ImmutableGraph,StandardMutableGraph
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionadjacentNodes(N node) Returns a live view of the nodes which have an incident edge in common withnodein this graph.booleanReturns true if this graph allows self-loops (edges that connect a node to itself).intReturns the count ofnode's incident edges, counting self-loops twice (equivalently, the number of times an edge touchesnode).delegate()protected longDefer toAbstractBaseGraph.edges()(based onsuccessors(Object)) for full edges() implementation.booleanhasEdgeConnecting(EndpointPair<N> endpoints) Returns true if there is an edge that directly connectsendpoints(in the order, if any, specified byendpoints).booleanhasEdgeConnecting(N nodeU, N nodeV) Returns true if there is an edge that directly connectsnodeUtonodeV.Returns anElementOrderthat specifies the order of iteration for the elements ofBaseGraph.edges(),BaseGraph.adjacentNodes(Object),BaseGraph.predecessors(Object),BaseGraph.successors(Object)andBaseGraph.incidentEdges(Object).Set<EndpointPair<N>> incidentEdges(N node) Returns a live view of the edges in this graph whose endpoints includenode.intReturns the count ofnode's incoming edges (equal topredecessors(node).size()) in a directed graph.booleanReturns true if the edges in this graph are directed.Returns the order of iteration for the elements ofGraph.nodes().nodes()Returns all nodes in this graph, in the order specified byGraph.nodeOrder().intReturns the count ofnode's outgoing edges (equal tosuccessors(node).size()) in a directed graph.predecessors(N node) Returns a live view of all nodes in this graph adjacent tonodewhich can be reached by traversingnode's incoming edges against the direction (if any) of the edge.successors(N node) Returns a live view of all nodes in this graph adjacent tonodewhich can be reached by traversingnode's outgoing edges in the direction (if any) of the edge.Methods inherited from class com.google.common.graph.AbstractGraph
equals, hashCode, toStringMethods inherited from class com.google.common.graph.AbstractBaseGraph
edges, isOrderingCompatible, nodeInvalidatableSet, nodePairInvalidatableSet, validateEndpoints
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Constructor Details
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ForwardingGraph
ForwardingGraph()
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Method Details
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delegate
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nodes
Description copied from interface:GraphReturns all nodes in this graph, in the order specified byGraph.nodeOrder(). -
edgeCount
protected long edgeCount()Defer toAbstractBaseGraph.edges()(based onsuccessors(Object)) for full edges() implementation.- Overrides:
edgeCountin classAbstractBaseGraph<N>
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isDirected
public boolean isDirected()Description copied from interface:GraphReturns true if the edges in this graph are directed. Directed edges connect asource nodeto atarget node, while undirected edges connect a pair of nodes to each other. -
allowsSelfLoops
public boolean allowsSelfLoops()Description copied from interface:GraphReturns true if this graph allows self-loops (edges that connect a node to itself). Attempting to add a self-loop to a graph that does not allow them will throw anIllegalArgumentException. -
nodeOrder
Description copied from interface:GraphReturns the order of iteration for the elements ofGraph.nodes(). -
incidentEdgeOrder
Description copied from interface:BaseGraphReturns anElementOrderthat specifies the order of iteration for the elements ofBaseGraph.edges(),BaseGraph.adjacentNodes(Object),BaseGraph.predecessors(Object),BaseGraph.successors(Object)andBaseGraph.incidentEdges(Object).- Specified by:
incidentEdgeOrderin interfaceBaseGraph<N>- Specified by:
incidentEdgeOrderin interfaceGraph<N>- Overrides:
incidentEdgeOrderin classAbstractBaseGraph<N>
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adjacentNodes
Description copied from interface:GraphReturns a live view of the nodes which have an incident edge in common withnodein this graph.This is equal to the union of
Graph.predecessors(Object)andGraph.successors(Object).If
nodeis removed from the graph after this method is called, theSetviewreturned by this method will be invalidated, and will throwIllegalStateExceptionif it is accessed in any way, with the following exceptions:view.equals(view)evaluates totrue(but any other `equals()` expression involvingviewwill throw)hashCode()does not throw- if
nodeis re-added to the graph after having been removed,view's behavior is undefined
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predecessors
Description copied from interface:GraphReturns a live view of all nodes in this graph adjacent tonodewhich can be reached by traversingnode's incoming edges against the direction (if any) of the edge.In an undirected graph, this is equivalent to
Graph.adjacentNodes(Object).If
nodeis removed from the graph after this method is called, theSetviewreturned by this method will be invalidated, and will throwIllegalStateExceptionif it is accessed in any way, with the following exceptions:view.equals(view)evaluates totrue(but any other `equals()` expression involvingviewwill throw)hashCode()does not throw- if
nodeis re-added to the graph after having been removed,view's behavior is undefined
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successors
Description copied from interface:GraphReturns a live view of all nodes in this graph adjacent tonodewhich can be reached by traversingnode's outgoing edges in the direction (if any) of the edge.In an undirected graph, this is equivalent to
Graph.adjacentNodes(Object).This is not the same as "all nodes reachable from
nodeby following outgoing edges". For that functionality, seeGraphs.reachableNodes(Graph, Object).If
nodeis removed from the graph after this method is called, theSetviewreturned by this method will be invalidated, and will throwIllegalStateExceptionif it is accessed in any way, with the following exceptions:view.equals(view)evaluates totrue(but any other `equals()` expression involvingviewwill throw)hashCode()does not throw- if
nodeis re-added to the graph after having been removed,view's behavior is undefined
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incidentEdges
Description copied from interface:BaseGraphReturns a live view of the edges in this graph whose endpoints includenode.This is equal to the union of incoming and outgoing edges.
If
nodeis removed from the graph after this method is called, theSetviewreturned by this method will be invalidated, and will throwIllegalStateExceptionif it is accessed in any way, with the following exceptions:view.equals(view)evaluates totrue(but any other `equals()` expression involvingviewwill throw)hashCode()does not throw- if
nodeis re-added to the graph after having been removed,view's behavior is undefined
- Specified by:
incidentEdgesin interfaceBaseGraph<N>- Specified by:
incidentEdgesin interfaceGraph<N>- Overrides:
incidentEdgesin classAbstractBaseGraph<N>
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degree
Description copied from interface:BaseGraphReturns the count ofnode's incident edges, counting self-loops twice (equivalently, the number of times an edge touchesnode).For directed graphs, this is equal to
inDegree(node) + outDegree(node).For undirected graphs, this is equal to
incidentEdges(node).size()+ (number of self-loops incident tonode).If the count is greater than
Integer.MAX_VALUE, returnsInteger.MAX_VALUE. -
inDegree
Description copied from interface:BaseGraphReturns the count ofnode's incoming edges (equal topredecessors(node).size()) in a directed graph. In an undirected graph, returns theBaseGraph.degree(Object).If the count is greater than
Integer.MAX_VALUE, returnsInteger.MAX_VALUE. -
outDegree
Description copied from interface:BaseGraphReturns the count ofnode's outgoing edges (equal tosuccessors(node).size()) in a directed graph. In an undirected graph, returns theBaseGraph.degree(Object).If the count is greater than
Integer.MAX_VALUE, returnsInteger.MAX_VALUE. -
hasEdgeConnecting
Description copied from interface:BaseGraphReturns true if there is an edge that directly connectsnodeUtonodeV. This is equivalent tonodes().contains(nodeU) && successors(nodeU).contains(nodeV).In an undirected graph, this is equal to
hasEdgeConnecting(nodeV, nodeU).- Specified by:
hasEdgeConnectingin interfaceBaseGraph<N>- Specified by:
hasEdgeConnectingin interfaceGraph<N>- Overrides:
hasEdgeConnectingin classAbstractBaseGraph<N>
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hasEdgeConnecting
Description copied from interface:BaseGraphReturns true if there is an edge that directly connectsendpoints(in the order, if any, specified byendpoints). This is equivalent toedges().contains(endpoints).Unlike the other
EndpointPair-accepting methods, this method does not throw if the endpoints are unordered; it simply returns false. This is for consistency with the behavior of(which does not generally throw if the object cannot be present in the collection), and the desire to have this method's behavior be compatible withinvalid reference
Collection#contains(Object)edges().contains(endpoints).- Specified by:
hasEdgeConnectingin interfaceBaseGraph<N>- Specified by:
hasEdgeConnectingin interfaceGraph<N>- Overrides:
hasEdgeConnectingin classAbstractBaseGraph<N>
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