1 /*
2 * Copyright (c) 2004, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
35 import java.util.TreeMap;
36
37 /**
38 * An immutable descriptor.
39 * @since 1.6
40 */
41 public class ImmutableDescriptor implements Descriptor {
42 private static final long serialVersionUID = 8853308591080540165L;
43
44 /**
45 * The names of the fields in this ImmutableDescriptor with their
46 * original case. The names must be in alphabetical order as determined
47 * by {@link String#CASE_INSENSITIVE_ORDER}.
48 */
49 private final String[] names;
50 /**
51 * The values of the fields in this ImmutableDescriptor. The
52 * elements in this array match the corresponding elements in the
53 * {@code names} array.
54 */
55 private final Object[] values;
56
57 private transient int hashCode = -1;
58
59 /**
60 * An empty descriptor.
61 */
62 public static final ImmutableDescriptor EMPTY_DESCRIPTOR =
63 new ImmutableDescriptor();
64
65 /**
66 * Construct a descriptor containing the given fields and values.
67 *
68 * @param fieldNames the field names
69 * @param fieldValues the field values
70 * @throws IllegalArgumentException if either array is null, or
71 * if the arrays have different sizes, or
72 * if a field name is null or empty, or if the same field name
73 * appears more than once.
74 */
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1 /*
2 * Copyright (c) 2004, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
35 import java.util.TreeMap;
36
37 /**
38 * An immutable descriptor.
39 * @since 1.6
40 */
41 public class ImmutableDescriptor implements Descriptor {
42 private static final long serialVersionUID = 8853308591080540165L;
43
44 /**
45 * The names of the fields in this ImmutableDescriptor with their
46 * original case. The names must be in alphabetical order as determined
47 * by {@link String#CASE_INSENSITIVE_ORDER}.
48 */
49 private final String[] names;
50 /**
51 * The values of the fields in this ImmutableDescriptor. The
52 * elements in this array match the corresponding elements in the
53 * {@code names} array.
54 */
55 @SuppressWarnings("serial") // Conditionally serializable
56 private final Object[] values;
57
58 private transient int hashCode = -1;
59
60 /**
61 * An empty descriptor.
62 */
63 public static final ImmutableDescriptor EMPTY_DESCRIPTOR =
64 new ImmutableDescriptor();
65
66 /**
67 * Construct a descriptor containing the given fields and values.
68 *
69 * @param fieldNames the field names
70 * @param fieldValues the field values
71 * @throws IllegalArgumentException if either array is null, or
72 * if the arrays have different sizes, or
73 * if a field name is null or empty, or if the same field name
74 * appears more than once.
75 */
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