com.google.common.graph.GraphConnections Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* Copyright (C) 2016 The Guava Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.common.graph;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.Iterator;
import java.util.Set;
import javax.annotation.CheckForNull;
/**
* An interface for representing and manipulating an origin node's adjacent nodes and edge values in
* a {@link Graph}.
*
* @author James Sexton
* @param Node parameter type
* @param Value parameter type
*/
@ElementTypesAreNonnullByDefault
interface GraphConnections {
Set adjacentNodes();
Set predecessors();
Set successors();
/**
* Returns an iterator over the incident edges.
*
* @param thisNode The node that this all of the connections in this class are connected to.
*/
Iterator> incidentEdgeIterator(N thisNode);
/**
* Returns the value associated with the edge connecting the origin node to {@code node}, or null
* if there is no such edge.
*/
@CheckForNull
V value(N node);
/** Remove {@code node} from the set of predecessors. */
void removePredecessor(N node);
/**
* Remove {@code node} from the set of successors. Returns the value previously associated with
* the edge connecting the two nodes.
*/
@CanIgnoreReturnValue
@CheckForNull
V removeSuccessor(N node);
/**
* Add {@code node} as a predecessor to the origin node. In the case of an undirected graph, it
* also becomes a successor. Associates {@code value} with the edge connecting the two nodes.
*/
void addPredecessor(N node, V value);
/**
* Add {@code node} as a successor to the origin node. In the case of an undirected graph, it also
* becomes a predecessor. Associates {@code value} with the edge connecting the two nodes. Returns
* the value previously associated with the edge connecting the two nodes.
*/
@CanIgnoreReturnValue
@CheckForNull
V addSuccessor(N node, V value);
}