Coverage Summary for Class: AbstractGraphBuilder (com.google.common.graph)

1 /*
2  * Copyright (C) 2016 The Guava Authors
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.google.common.graph;
18 
19 import com.google.common.base.Optional;
20 
21 /**
22  * A base class for builders that construct graphs with user-defined properties.
23  *
24  * @author James Sexton
25  */
26 @ElementTypesAreNonnullByDefault
27 abstract class AbstractGraphBuilder<N> {
28   final boolean directed;
29   boolean allowsSelfLoops = false;
30   ElementOrder<N> nodeOrder = ElementOrder.insertion();
31   ElementOrder<N> incidentEdgeOrder = ElementOrder.unordered();
32 
33   Optional<Integer> expectedNodeCount = Optional.absent();
34 
35   /**
36    * Creates a new instance with the specified edge directionality.
37    *
38    * @param directed if true, creates an instance for graphs whose edges are each directed; if
39    *     false, creates an instance for graphs whose edges are each undirected.
40    */
41   AbstractGraphBuilder(boolean directed) {
42     this.directed = directed;
43   }
44 }