blob: 49c7b4d8ff64995e16d77202d3e67f77d2120fb3 (
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
34
35
36
37
38
39
40
41
42
43
44
45
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.prelude.query;
import java.nio.ByteBuffer;
/**
* A placeholder for null queries to make searchers easier to write.
*
* @author Steinar Knutsen
*/
public class NullItem extends Item {
public NullItem() {}
/** Does nothing */
@Override
public void setIndexName(String index) {}
@Override
public int encode(ByteBuffer buffer) {
throw new IllegalStateException("A NullItem was attempted encoded. This is probably a misbehaving searcher");
}
@Override
public ItemType getItemType() {
throw new IllegalStateException("Packet code access attempted. A NullItem has no packet code. " +
"This is probably a misbehaving searcher.");
}
@Override
public void appendBodyString(StringBuilder buffer) {}
public void appendHeadingString(StringBuilder buffer) {
buffer.append(getName());
}
@Override
public String getName() {
return "NULL";
}
@Override
public int getTermCount() { return 0; }
}
|
