15294773771

Committed 28 May 2025 08:01AM UTC coverage: 70.078% (+0.2%) from 69.877%

Build # 15294773771

Build Type

Pull #31

github

Committed by

web-flow

Commit Message

Merge 9f1c324c0 into 6be86da23

Pull Request Pull Request #31: feat: add support for SQLite dialect

Coverage Stats

233 of 418 branches covered (55.74%)

Branch coverage included in aggregate %.

28 of 33 new or added lines in 12 files covered. (84.85%)

45 existing lines in 10 files now uncovered.

1212 of 1644 relevant lines covered (73.72%)

3.91 hits per line

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77.78

/src/main/java/io/github/torand/fastersql/dialect/PostgreSqlDialect.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;
import static io.github.torand.fastersql.dialect.Capability.SELECT_FOR_UPDATE;
import static io.github.torand.fastersql.dialect.Capability.TRUNCATE_TABLE;
import static io.github.torand.fastersql.util.lang.StringHelper.generate;

/**
 * Defines the PostgreSQL SQL dialect
 *
 * <a href="https://www.postgresql.org/docs/current/" />
 */
public class PostgreSqlDialect implements Dialect {
    private static final EnumSet<Capability> SUPPORTED_CAPS = EnumSet.of(LIMIT_OFFSET, CONCAT_OPERATOR, MODULO_OPERATOR, CURRENT_TIME, NULL_ORDERING, SELECT_FOR_UPDATE, TRUNCATE_TABLE);

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

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

    @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.empty();
    }

    @Override
    public String formatToNumberFunction(String operand, int precision, int scale) {
        StringBuilder mask = new StringBuilder();
        if (precision-scale > 0) {
            mask.append(generate("9", precision-scale));
        }
        if (scale > 0) {
            mask.append(".").append(generate("9", scale));
        }

        return "to_number(" + operand + ", '" + mask + "')";
    }

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

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

    @Override
    public String formatConcatFunction(List<String> operands) {
        throw new UnsupportedOperationException("PostgreSQL does not support the concat() function (use the concat infix operator instead)");
    }

    @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) {
        throw new UnsupportedOperationException("PostgreSQL does not support the mod() function (use the modulo infix operator instead)");
    }

    @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	import static io.github.torand.fastersql.dialect.Capability.SELECT_FOR_UPDATE;
28	import static io.github.torand.fastersql.dialect.Capability.TRUNCATE_TABLE;
29	import static io.github.torand.fastersql.util.lang.StringHelper.generate;
30
31	/**
32	* Defines the PostgreSQL SQL dialect
33	*
34	* <a href="https://www.postgresql.org/docs/current/" />
35	*/
36	public class PostgreSqlDialect implements Dialect {	3✔
37	private static final EnumSet<Capability> SUPPORTED_CAPS = EnumSet.of(LIMIT_OFFSET, CONCAT_OPERATOR, MODULO_OPERATOR, CURRENT_TIME, NULL_ORDERING, SELECT_FOR_UPDATE, TRUNCATE_TABLE);	30✔
38
39	@Override
40	public String getProductName() {
41	return "PostgreSQL";	2✔
42	}
43
44	@Override
45	public boolean offsetBeforeLimit() {
46	return true;	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() {
UNCOV 61	return Optional.empty();	×
62	}
63
64	@Override
65	public String formatToNumberFunction(String operand, int precision, int scale) {
66	StringBuilder mask = new StringBuilder();	4✔
67	if (precision-scale > 0) {	4!
68	mask.append(generate("9", precision-scale));	8✔
69	}
70	if (scale > 0) {	2!
UNCOV 71	mask.append(".").append(generate("9", scale));	×
72	}
73
74	return "to_number(" + operand + ", '" + mask + "')";	5✔
75	}
76
77	@Override
78	public String formatToCharFunction(String operand, String format) {
79	return "to_char(" + operand + ", " + format + ")";	4✔
80	}
81
82	@Override
83	public String formatSubstringFunction(String operand, int startPos, int length) {
84	return "substring(" + operand + ", " + startPos + ", " + length + ")";	5✔
85	}
86
87	@Override
88	public String formatConcatFunction(List<String> operands) {
UNCOV 89	throw new UnsupportedOperationException("PostgreSQL does not support the concat() function (use the concat infix operator instead)");	×
90	}
91
92	@Override
93	public String formatLengthFunction(String operand) {
94	return "char_length(" + operand + ")";	3✔
95	}
96
97	@Override
98	public String formatCeilFunction(String operand) {
99	return "ceil(" + operand + ")";	3✔
100	}
101
102	@Override
103	public String formatRoundFunction(String operand) {
104	return "round(" + operand + ")";	3✔
105	}
106
107	@Override
108	public String formatModuloFunction(String divisor, String dividend) {
UNCOV 109	throw new UnsupportedOperationException("PostgreSQL does not support the mod() function (use the modulo infix operator instead)");	×
110	}
111
112	@Override
113	public String formatCurrentDateFunction() {
114	return "current_date";	2✔
115	}
116
117	@Override
118	public Optional<String> getConcatOperator() {
119	return Optional.of("\|\|");	3✔
120	}
121
122	@Override
123	public boolean supports(Capability capability) {
124	return SUPPORTED_CAPS.contains(capability);	4✔
125	}
126	}

torand / FasterSQL / 15294773771

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