16519063386

Committed 25 Jul 2025 09:48AM UTC coverage: 72.847% (+0.2%) from 72.681%

Build # 16519063386

Build Type

push

github

Committed by

torand

Commit Message

feat: add support for the 'ln', 'exp', 'sqrt' and 'power' math functions

Run Details

230 of 372 branches covered (61.83%)

Branch coverage included in aggregate %.

63 of 76 new or added lines in 17 files covered. (82.89%)

1267 of 1683 relevant lines covered (75.28%)

3.97 hits per line

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92.86

/src/main/java/io/github/torand/fastersql/function/singlerow/Exp.java

/*
 * Copyright (c) 2024-2025 Tore Eide Andersen
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.github.torand.fastersql.function.singlerow;

import io.github.torand.fastersql.alias.ColumnAlias;
import io.github.torand.fastersql.expression.Expression;
import io.github.torand.fastersql.model.Column;
import io.github.torand.fastersql.projection.Projection;
import io.github.torand.fastersql.sql.Context;

import java.util.Optional;
import java.util.stream.Stream;

import static io.github.torand.javacommons.contract.Requires.requireNonBlank;
import static io.github.torand.javacommons.lang.StringHelper.nonBlank;
import static java.util.Objects.requireNonNull;

/**
 * Implements the square root numeric function.
 */
public class Sqrt implements SingleRowFunction {
    private final Expression expression;
    private final ColumnAlias alias;

    Sqrt(Expression expression, String alias) {
        this.expression = requireNonNull(expression, "No expression specified");
        this.alias = nonBlank(alias) ? new ColumnAlias(alias) : defaultAlias();
    }

    // Sql

    @Override
    public String sql(Context context) {
        return "sqrt(%s)".formatted(expression.sql(context));
    }

    @Override
    public Stream<Object> params(Context context) {
        return expression.params(context);
    }

    @Override
    public Stream<Column> columnRefs() {
        return expression.columnRefs();
    }

    @Override
    public Stream<ColumnAlias> aliasRefs() {
        return expression.aliasRefs();
    }

    // Projection

    @Override
    public Projection as(String alias) {
        requireNonBlank(alias, "No alias specified");
        return new Sqrt(expression, alias);
    }

    @Override
    public Optional<ColumnAlias> alias() {
        return Optional.ofNullable(alias);
    }

    private ColumnAlias defaultAlias() {
        return ColumnAlias.generate("SQRT_");
    }
}

1	/*
2	* Copyright (c) 2024-2025 Tore Eide Andersen
3	*
4	* Licensed under the Apache License, Version 2.0 (the "License");
5	* you may not use this file except in compliance with the License.
6	* You may obtain a copy of the License at
7	*
8	* http://www.apache.org/licenses/LICENSE-2.0
9	*
10	* Unless required by applicable law or agreed to in writing, software
11	* distributed under the License is distributed on an "AS IS" BASIS,
12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	* See the License for the specific language governing permissions and
14	* limitations under the License.
15	*/
16	package io.github.torand.fastersql.function.singlerow;
17
18	import io.github.torand.fastersql.alias.ColumnAlias;
19	import io.github.torand.fastersql.expression.Expression;
20	import io.github.torand.fastersql.model.Column;
21	import io.github.torand.fastersql.projection.Projection;
22	import io.github.torand.fastersql.sql.Context;
23
24	import java.util.Optional;
25	import java.util.stream.Stream;
26
27	import static io.github.torand.javacommons.contract.Requires.requireNonBlank;
28	import static io.github.torand.javacommons.lang.StringHelper.nonBlank;
29	import static java.util.Objects.requireNonNull;
30
31	/**
32	* Implements the square root numeric function.
33	*/
34	public class Sqrt implements SingleRowFunction {
35	private final Expression expression;
36	private final ColumnAlias alias;
37
38	Sqrt(Expression expression, String alias) {	2✔
39	this.expression = requireNonNull(expression, "No expression specified");	6✔
40	this.alias = nonBlank(alias) ? new ColumnAlias(alias) : defaultAlias();	12✔
41	}	1✔
42
43	// Sql
44
45	@Override
46	public String sql(Context context) {
47	return "sqrt(%s)".formatted(expression.sql(context));	12✔
48	}
49
50	@Override
51	public Stream<Object> params(Context context) {
52	return expression.params(context);	5✔
53	}
54
55	@Override
56	public Stream<Column> columnRefs() {
57	return expression.columnRefs();	4✔
58	}
59
60	@Override
61	public Stream<ColumnAlias> aliasRefs() {
NEW 62	return expression.aliasRefs();	×
63	}
64
65	// Projection
66
67	@Override
68	public Projection as(String alias) {
69	requireNonBlank(alias, "No alias specified");	6✔
70	return new Sqrt(expression, alias);	7✔
71	}
72
73	@Override
74	public Optional<ColumnAlias> alias() {
75	return Optional.ofNullable(alias);	4✔
76	}
77
78	private ColumnAlias defaultAlias() {
79	return ColumnAlias.generate("SQRT_");	3✔
80	}
81	}

torand / FasterSQL / 16519063386

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