1 package org.djutils.data;
2
3 import java.util.Arrays;
4
5 /**
6 * Row in a table.
7 * <p>
8 * Copyright (c) 2020-2024 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
9 * BSD-style license. See <a href="https://djutils.org/docs/current/djutils/licenses.html">DJUTILS License</a>.
10 * </p>
11 * @author <a href="https://github.com/averbraeck">Alexander Verbraeck</a>
12 * @author <a href="https://tudelft.nl/staff/p.knoppers-1">Peter Knoppers</a>
13 * @author <a href="https://dittlab.tudelft.nl">Wouter Schakel</a>
14 */
15 public class Row
16 {
17
18 /** Table. */
19 private final Table table;
20
21 /** Values. */
22 private final Object[] values;
23
24 /**
25 * Constructor.
26 * @param table Table; table.
27 * @param values Object[]; values.
28 */
29 public Row(final Table table, final Object[] values)
30 {
31 this.table = table;
32 this.values = values;
33 }
34
35 /**
36 * Returns the column value in this row. For performance, use {@code getValue(int columnNumber)}.
37 * @param column Column<T>; column.
38 * @param <T> value type.
39 * @return T; the column value in this row.
40 */
41 @SuppressWarnings("unchecked")
42 public <T> T getValue(final Column<T> column)
43 {
44 return (T) this.values[this.table.getColumnNumber(column)];
45 }
46
47 /**
48 * Returns the column value in this row. For performance, use {@code getValue(int columnNumber)}.
49 * @param id String; column id.
50 * @return the column value in this row.
51 */
52 public Object getValue(final String id)
53 {
54 return this.values[this.table.getColumnNumber(id)];
55 }
56
57 /**
58 * Returns the column value in this row.
59 * @param columnNumber int; column number.
60 * @return Object; the column value in this row.
61 */
62 public Object getValue(final int columnNumber)
63 {
64 return this.values[columnNumber];
65 }
66
67 /**
68 * Returns the column values of this record in the natural order of the columns.
69 * @return Object[]; the column value in this record
70 */
71 public Object[] getValues()
72 {
73 return this.values;
74 }
75
76 @Override
77 public int hashCode()
78 {
79 final int prime = 31;
80 int result = 1;
81 result = prime * result + Arrays.deepHashCode(this.values);
82 return result;
83 }
84
85 @Override
86 public boolean equals(final Object obj)
87 {
88 if (this == obj)
89 {
90 return true;
91 }
92 if (obj == null)
93 {
94 return false;
95 }
96 if (getClass() != obj.getClass())
97 {
98 return false;
99 }
100 Row other = (Row) obj;
101 return Arrays.deepEquals(this.values, other.values);
102 }
103
104 @Override
105 public String toString()
106 {
107 return "Row " + Arrays.toString(this.values);
108 }
109
110 }