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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.grouping.request;
/**
* This class represents a {@link String} bucket in a {@link PredefinedFunction}.
*
* @author Simon Thoresen Hult
*/
public class StringBucket extends BucketValue {
/** Returns the next distinct value after the given value */
public static StringValue nextValue(StringValue value) {
return new StringValue(value.getValue() + " ");
}
/** Constructs a new bucket for a single unique string */
public StringBucket(String value) {
this(new StringValue(value));
}
/** Constructs a new bucket for a single unique string */
public StringBucket(StringValue value) {
this(value, nextValue(value));
}
/**
* Constructs a new bucket for a range of strings.
*
* @param from the start of the bucket, inclusive
* @param to the end of the bucket, exclusive
*/
public StringBucket(String from, String to) {
this(from, to, false);
}
/**
* Constructs a new bucket for a range of strings.
*
* @param from the start of the bucket, inclusive
* @param to the end of the bucket
* @param toInclusive whether <code>to</code> value should be included in the bucket
*/
public StringBucket(String from, String to, boolean toInclusive) {
super(null,
null,
new StringValue(from),
toInclusive ? nextValue(new StringValue(to)) : new StringValue(to));
}
/**
* Constructs a new bucket for a range of strings.
*
* @param from the start of the bucket, inclusive
* @param to the end of the bucket, exclusive
*/
public StringBucket(ConstantValue<?> from, ConstantValue<?> to) {
super(null, null, from, to);
}
private StringBucket(String label, Integer level, ConstantValue<?> from, ConstantValue<?> to) {
super(label, level, from, to);
}
@Override
public StringBucket copy() {
return new StringBucket(getLabel(), getLevelOrNull(), getFrom().copy(), getTo().copy());
}
}
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