blob: eb7e62e913bd04d249500b28ab7686b5eb4dee8c (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.tensor.impl;
import com.yahoo.tensor.TensorAddress;
/**
* A zero-dimensional address.
*
* @author baldersheim
*/
final class TensorAddressEmpty extends TensorAddressAny {
static TensorAddress empty = new TensorAddressEmpty();
private TensorAddressEmpty() {}
@Override public int size() { return 0; }
@Override public long numericLabel(int i) { throw new IllegalArgumentException("Empty address with no labels"); }
@Override
public TensorAddress withLabel(int labelIndex, long label) {
throw new IllegalArgumentException("No label " + labelIndex);
}
@Override
public int hashCode() { return 0; }
@Override
public boolean equals(Object o) { return o instanceof TensorAddressEmpty; }
}
|