1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * https://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.jexl3.internal;
18
19 import java.util.HashSet;
20 import java.util.LinkedHashSet;
21 import java.util.Set;
22
23 import org.apache.commons.jexl3.JexlArithmetic;
24
25 /**
26 * Helper class to create set literals.
27 */
28 public class SetBuilder implements JexlArithmetic.SetBuilder {
29
30 /** The set being created. */
31 protected final Set<Object> set;
32
33 /**
34 * Creates a new builder.
35 *
36 * @param size the expected set size
37 */
38 public SetBuilder(final int size) {
39 this(size, false);
40 }
41
42 /**
43 * Creates a new builder.
44 *
45 * @param size the expected set size
46 * @param extended whether the set is extended
47 */
48 public SetBuilder(final int size, final boolean extended) {
49 set = extended? new LinkedHashSet<>(size) : new HashSet<>(size);
50 }
51
52 @Override
53 public void add(final Object value) {
54 set.add(value);
55 }
56
57 @Override
58 public Set<?> create() {
59 return set;
60 }
61 }