com.github.ferstl.depgraph.graph.Edge Maven / Gradle / Ivy

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This Maven plugin generates dependency graphs on single modules or in an aggregated form on multi-module projects. The graphs are represented by .dot files. In case that Graphviz is installed on the machine where this plugin is run, the .dot file can be directly converted into all supported image files.

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/*
 * Copyright (c) 2014 - 2017 the original author or 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.github.ferstl.depgraph.graph;

import java.util.Objects;

public final class Edge {

  private final String fromNodeId;
  private final String toNodeId;
  private final String name;
  // Not part of equals()/hashCode()
  private final boolean permanent;

  public Edge(String fromNodeId, String toNodeId, String name) {
    this(fromNodeId, toNodeId, name, false);
  }

  public Edge(String fromNodeId, String toNodeId, String name, boolean permanent) {
    this.fromNodeId = fromNodeId;
    this.toNodeId = toNodeId;
    this.name = name;
    this.permanent = permanent;
  }

  public String getFromNodeId() {
    return this.fromNodeId;
  }

  public String getToNodeId() {
    return this.toNodeId;
  }

  public String getName() {
    return this.name;
  }

  public boolean isPermanent() {
    return this.permanent;
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) { return true; }
    if (!(o instanceof Edge)) { return false; }

    Edge edge = (Edge) o;
    return Objects.equals(this.fromNodeId, edge.fromNodeId)
        && Objects.equals(this.toNodeId, edge.toNodeId)
        && Objects.equals(this.name, edge.name);
  }

  @Override
  public int hashCode() {
    return Objects.hash(this.fromNodeId, this.toNodeId, this.name);
  }

  @Override
  public String toString() {
    return this.fromNodeId + " -> " + this.toNodeId + " (" + this.name + ")";
  }
}