15299276026

Committed 28 May 2025 11:44AM UTC coverage: 70.298% (+0.2%) from 70.078%

Build # 15299276026

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push

github

Committed by

web-flow

Commit Message

Merge pull request #32 from torand/hsqldb-support

feat: add support for HSQLDB dialect

Run Details

235 of 420 branches covered (55.95%)

Branch coverage included in aggregate %.

18 of 20 new or added lines in 2 files covered. (90.0%)

1230 of 1664 relevant lines covered (73.92%)

3.91 hits per line

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88.89

/src/main/java/io/github/torand/fastersql/dialect/HsqldbDialect.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.dialect;

import java.util.EnumSet;
import java.util.List;
import java.util.Optional;

import static io.github.torand.fastersql.dialect.Capability.CONCAT_OPERATOR;
import static io.github.torand.fastersql.dialect.Capability.CURRENT_TIME;
import static io.github.torand.fastersql.dialect.Capability.LIMIT_OFFSET;
import static io.github.torand.fastersql.dialect.Capability.NULL_ORDERING;
import static io.github.torand.fastersql.dialect.Capability.SELECT_FOR_UPDATE;
import static io.github.torand.fastersql.dialect.Capability.TRUNCATE_TABLE;

/**
 * Defines the HyperSQL (HSQLDB) SQL dialect.
 *
 * <a href="https://hsqldb.org/doc/2.0/guide/sqlgeneral-chapt.html" />
 */
public class HsqldbDialect implements Dialect {
    private static final EnumSet<Capability> SUPPORTED_CAPS = EnumSet.of(LIMIT_OFFSET, CONCAT_OPERATOR, CURRENT_TIME, NULL_ORDERING, SELECT_FOR_UPDATE, TRUNCATE_TABLE);

    @Override
    public String getProductName() {
        return "HyperSQL/HSQLDB";
    }

    @Override
    public boolean offsetBeforeLimit() {
        return false;
    }

    @Override
    public Optional<String> formatRowOffsetClause() {
        return Optional.of("offset ?");
    }

    @Override
    public Optional<String> formatRowLimitClause() {
        return Optional.of("limit ?");
    }

    @Override
    public Optional<String> formatRowNumLiteral() {
        return Optional.of("rownum()");
    }

    @Override
    public String formatToNumberFunction(String operand, int precision, int scale) {
        return "to_number(" + operand + ")";
    }

    @Override
    public String formatToCharFunction(String operand, String format) {
        return "to_char(" + operand + ", " + format + ")";
    }

    @Override
    public String formatSubstringFunction(String operand, int startPos, int length) {
        return "substr(" + operand + ", " + startPos + ", " + length + ")";
    }

    @Override
    public String formatConcatFunction(List<String> operands) {
        // Note! The concat infix operator is used in output SQL
        return "concat(%s)".formatted(String.join(", ", operands));
    }

    @Override
    public String formatLengthFunction(String operand) {
        return "char_length(" + operand + ")";
    }

    @Override
    public String formatCeilFunction(String operand) {
        return "ceil(" + operand + ")";
    }

    @Override
    public String formatRoundFunction(String operand) {
        return "round(" + operand + ")";
    }

    @Override
    public String formatModuloFunction(String divisor, String dividend) {
        return "mod(" + divisor + ", " + dividend + ")";
    }

    @Override
    public String formatCurrentDateFunction() {
        return "current_date";
    }

    @Override
    public Optional<String> getConcatOperator() {
        return Optional.of("||");
    }

    @Override
    public boolean supports(Capability capability) {
        return SUPPORTED_CAPS.contains(capability);
    }
}

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.dialect;
17
18	import java.util.EnumSet;
19	import java.util.List;
20	import java.util.Optional;
21
22	import static io.github.torand.fastersql.dialect.Capability.CONCAT_OPERATOR;
23	import static io.github.torand.fastersql.dialect.Capability.CURRENT_TIME;
24	import static io.github.torand.fastersql.dialect.Capability.LIMIT_OFFSET;
25	import static io.github.torand.fastersql.dialect.Capability.NULL_ORDERING;
26	import static io.github.torand.fastersql.dialect.Capability.SELECT_FOR_UPDATE;
27	import static io.github.torand.fastersql.dialect.Capability.TRUNCATE_TABLE;
28
29	/**
30	* Defines the HyperSQL (HSQLDB) SQL dialect.
31	*
32	* <a href="https://hsqldb.org/doc/2.0/guide/sqlgeneral-chapt.html" />
33	*/
34	public class HsqldbDialect implements Dialect {	3✔
35	private static final EnumSet<Capability> SUPPORTED_CAPS = EnumSet.of(LIMIT_OFFSET, CONCAT_OPERATOR, CURRENT_TIME, NULL_ORDERING, SELECT_FOR_UPDATE, TRUNCATE_TABLE);	26✔
36
37	@Override
38	public String getProductName() {
39	return "HyperSQL/HSQLDB";	2✔
40	}
41
42	@Override
43	public boolean offsetBeforeLimit() {
44	return false;	2✔
45	}
46
47	@Override
48	public Optional<String> formatRowOffsetClause() {
49	return Optional.of("offset ?");	3✔
50	}
51
52	@Override
53	public Optional<String> formatRowLimitClause() {
54	return Optional.of("limit ?");	3✔
55	}
56
57	@Override
58	public Optional<String> formatRowNumLiteral() {
NEW 59	return Optional.of("rownum()");	×
60	}
61
62	@Override
63	public String formatToNumberFunction(String operand, int precision, int scale) {
64	return "to_number(" + operand + ")";	3✔
65	}
66
67	@Override
68	public String formatToCharFunction(String operand, String format) {
69	return "to_char(" + operand + ", " + format + ")";	4✔
70	}
71
72	@Override
73	public String formatSubstringFunction(String operand, int startPos, int length) {
74	return "substr(" + operand + ", " + startPos + ", " + length + ")";	5✔
75	}
76
77	@Override
78	public String formatConcatFunction(List<String> operands) {
79	// Note! The concat infix operator is used in output SQL
NEW 80	return "concat(%s)".formatted(String.join(", ", operands));	×
81	}
82
83	@Override
84	public String formatLengthFunction(String operand) {
85	return "char_length(" + operand + ")";	3✔
86	}
87
88	@Override
89	public String formatCeilFunction(String operand) {
90	return "ceil(" + operand + ")";	3✔
91	}
92
93	@Override
94	public String formatRoundFunction(String operand) {
95	return "round(" + operand + ")";	3✔
96	}
97
98	@Override
99	public String formatModuloFunction(String divisor, String dividend) {
100	return "mod(" + divisor + ", " + dividend + ")";	4✔
101	}
102
103	@Override
104	public String formatCurrentDateFunction() {
105	return "current_date";	2✔
106	}
107
108	@Override
109	public Optional<String> getConcatOperator() {
110	return Optional.of("\|\|");	3✔
111	}
112
113	@Override
114	public boolean supports(Capability capability) {
115	return SUPPORTED_CAPS.contains(capability);	4✔
116	}
117	}

torand / FasterSQL / 15299276026

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