15346133148

Committed 30 May 2025 11:50AM UTC coverage: 70.397% (+0.1%) from 70.298%

Build # 15346133148

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push

github

Committed by

torand

Commit Message

chore: test javadoc publish

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235 of 420 branches covered (55.95%)

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1237 of 1671 relevant lines covered (74.03%)

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77.78

/src/main/java/io/github/torand/fastersql/dialect/SqliteDialect.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.MODULO_OPERATOR;
import static io.github.torand.fastersql.dialect.Capability.NULL_ORDERING;

/**
 * Defines the <a href="https://www.sqlite.org/lang.html">SQLite</a> SQL dialect.
 */
public class SqliteDialect implements Dialect {
    private static final EnumSet<Capability> SUPPORTED_CAPS = EnumSet.of(LIMIT_OFFSET, CONCAT_OPERATOR, MODULO_OPERATOR, CURRENT_TIME, NULL_ORDERING);

    /**
     * Creates a SQLite {@link Dialect} implementation.
     */
    public SqliteDialect() {}

    @Override
    public String getProductName() {
        return "SQLite";
    }

    @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("row_number()");
    }

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

    @Override
    public String formatToCharFunction(String operand, String format) {
        throw new UnsupportedOperationException("SQLite does not support the to_char() function (timestamps are already stored as ISO8601 strings)");
    }

    @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 "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) {
        // Note! The modulo infix operator is used in output SQL
        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.MODULO_OPERATOR;
26	import static io.github.torand.fastersql.dialect.Capability.NULL_ORDERING;
27
28	/**
29	* Defines the <a href="https://www.sqlite.org/lang.html">SQLite</a> SQL dialect.
30	*/
31	public class SqliteDialect implements Dialect {
32	private static final EnumSet<Capability> SUPPORTED_CAPS = EnumSet.of(LIMIT_OFFSET, CONCAT_OPERATOR, MODULO_OPERATOR, CURRENT_TIME, NULL_ORDERING);	8✔
33
34	/**
35	* Creates a SQLite {@link Dialect} implementation.
36	*/
37	public SqliteDialect() {}	3✔
38
39	@Override
40	public String getProductName() {
41	return "SQLite";	2✔
42	}
43
44	@Override
45	public boolean offsetBeforeLimit() {
46	return false;	2✔
47	}
48
49	@Override
50	public Optional<String> formatRowOffsetClause() {
51	return Optional.of("offset ?");	3✔
52	}
53
54	@Override
55	public Optional<String> formatRowLimitClause() {
56	return Optional.of("limit ?");	3✔
57	}
58
59	@Override
60	public Optional<String> formatRowNumLiteral() {
61	return Optional.of("row_number()");	×
62	}
63
64	@Override
65	public String formatToNumberFunction(String operand, int precision, int scale) {
66	return "cast(" + operand + " as decimal)";	3✔
67	}
68
69	@Override
70	public String formatToCharFunction(String operand, String format) {
71	throw new UnsupportedOperationException("SQLite does not support the to_char() function (timestamps are already stored as ISO8601 strings)");	×
72	}
73
74	@Override
75	public String formatSubstringFunction(String operand, int startPos, int length) {
76	return "substr(" + operand + ", " + startPos + ", " + length + ")";	5✔
77	}
78
79	@Override
80	public String formatConcatFunction(List<String> operands) {
81	// Note! The concat infix operator is used in output SQL
82	return "concat(%s)".formatted(String.join(", ", operands));	×
83	}
84
85	@Override
86	public String formatLengthFunction(String operand) {
87	return "length(" + operand + ")";	3✔
88	}
89
90	@Override
91	public String formatCeilFunction(String operand) {
92	return "ceil(" + operand + ")";	3✔
93	}
94
95	@Override
96	public String formatRoundFunction(String operand) {
97	return "round(" + operand + ")";	3✔
98	}
99
100	@Override
101	public String formatModuloFunction(String divisor, String dividend) {
102	// Note! The modulo infix operator is used in output SQL
103	return "mod(" + divisor + ", " + dividend + ")";	×
104	}
105
106	@Override
107	public String formatCurrentDateFunction() {
108	return "current_date";	2✔
109	}
110
111	@Override
112	public Optional<String> getConcatOperator() {
113	return Optional.of("\|\|");	3✔
114	}
115
116	@Override
117	public boolean supports(Capability capability) {
118	return SUPPORTED_CAPS.contains(capability);	4✔
119	}
120	}

torand / FasterSQL / 15346133148

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