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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80.95

/src/main/java/io/github/torand/fastersql/dialect/SqlServerDialect.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.LIMIT_OFFSET;
import static io.github.torand.fastersql.dialect.Capability.MODULO_OPERATOR;
import static io.github.torand.fastersql.dialect.Capability.TRUNCATE_TABLE;

/**
 * Defines the SQL Server dialect.
 *
 * <a href="https://learn.microsoft.com/en-us/sql/sql-server/?view=sql-server-ver16" />
 */
public class SqlServerDialect implements Dialect {
    private final EnumSet<Capability> supportedCaps;

    public SqlServerDialect() {
        this(EnumSet.of(LIMIT_OFFSET, CONCAT_OPERATOR, MODULO_OPERATOR, TRUNCATE_TABLE));
    }

    private SqlServerDialect(EnumSet<Capability> capabilities) {
        this.supportedCaps = EnumSet.copyOf(capabilities);
    }

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

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

    /**
     * Row offset clause is supported from SQL Server 2012 onwards
     */
    @Override
    public Optional<String> formatRowOffsetClause() {
        return Optional.of("offset ? rows");
    }

    /**
     * Row limit clause is supported from SQL Server 2012 onwards
     */
    @Override
    public Optional<String> formatRowLimitClause() {
        return Optional.of("fetch next ? rows only");
    }

    /**
     * SQL Server has the ROW_NUMBER() function but must be combined with OVER() in this context.
     */
    @Override
    public Optional<String> formatRowNumLiteral() {
        return Optional.empty();
    }

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

    @Override
    public String formatToCharFunction(String operand, String format) {
        throw new UnsupportedOperationException("SQL Server does not support the to_char() function");
    }

    @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("SQL Server does not support the concat() function (use the concat infix operator instead)");
    }

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

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

    @Override
    public String formatRoundFunction(String operand) {
        return "round(" + operand + ", 0)";
    }

    @Override
    public String formatModuloFunction(String divisor, String dividend) {
        throw new UnsupportedOperationException("SQL Server does not support the mod() function (use the modulo infix operator instead)");
    }

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

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

    @Override
    public boolean supports(Capability capability) {
        return supportedCaps.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.LIMIT_OFFSET;
24	import static io.github.torand.fastersql.dialect.Capability.MODULO_OPERATOR;
25	import static io.github.torand.fastersql.dialect.Capability.TRUNCATE_TABLE;
26
27	/**
28	* Defines the SQL Server dialect.
29	*
30	* <a href="https://learn.microsoft.com/en-us/sql/sql-server/?view=sql-server-ver16" />
31	*/
32	public class SqlServerDialect implements Dialect {
33	private final EnumSet<Capability> supportedCaps;
34
35	public SqlServerDialect() {
36	this(EnumSet.of(LIMIT_OFFSET, CONCAT_OPERATOR, MODULO_OPERATOR, TRUNCATE_TABLE));	7✔
37	}	1✔
38
39	private SqlServerDialect(EnumSet<Capability> capabilities) {	2✔
40	this.supportedCaps = EnumSet.copyOf(capabilities);	4✔
41	}	1✔
42
43	@Override
44	public String getProductName() {
45	return "SQL Server";	2✔
46	}
47
48	@Override
49	public boolean offsetBeforeLimit() {
50	return true;	2✔
51	}
52
53	/**
54	* Row offset clause is supported from SQL Server 2012 onwards
55	*/
56	@Override
57	public Optional<String> formatRowOffsetClause() {
58	return Optional.of("offset ? rows");	3✔
59	}
60
61	/**
62	* Row limit clause is supported from SQL Server 2012 onwards
63	*/
64	@Override
65	public Optional<String> formatRowLimitClause() {
66	return Optional.of("fetch next ? rows only");	3✔
67	}
68
69	/**
70	* SQL Server has the ROW_NUMBER() function but must be combined with OVER() in this context.
71	*/
72	@Override
73	public Optional<String> formatRowNumLiteral() {
UNCOV 74	return Optional.empty();	×
75	}
76
77	@Override
78	public String formatToNumberFunction(String operand, int precision, int scale) {
79	return "cast(" + operand + " as numeric(" + precision + "," + scale + "))";	5✔
80	}
81
82	@Override
83	public String formatToCharFunction(String operand, String format) {
UNCOV 84	throw new UnsupportedOperationException("SQL Server does not support the to_char() function");	×
85	}
86
87	@Override
88	public String formatSubstringFunction(String operand, int startPos, int length) {
89	return "substring(" + operand + ", " + startPos + ", " + length + ")";	5✔
90	}
91
92	@Override
93	public String formatConcatFunction(List<String> operands) {
UNCOV 94	throw new UnsupportedOperationException("SQL Server does not support the concat() function (use the concat infix operator instead)");	×
95	}
96
97	@Override
98	public String formatLengthFunction(String operand) {
99	return "len(" + operand + ")";	3✔
100	}
101
102	@Override
103	public String formatCeilFunction(String operand) {
104	return "ceiling(" + operand + ")";	3✔
105	}
106
107	@Override
108	public String formatRoundFunction(String operand) {
109	return "round(" + operand + ", 0)";	3✔
110	}
111
112	@Override
113	public String formatModuloFunction(String divisor, String dividend) {
UNCOV 114	throw new UnsupportedOperationException("SQL Server does not support the mod() function (use the modulo infix operator instead)");	×
115	}
116
117	@Override
118	public String formatCurrentDateFunction() {
119	return "getdate()";	2✔
120	}
121
122	@Override
123	public Optional<String> getConcatOperator() {
124	return Optional.of("+");	3✔
125	}
126
127	@Override
128	public boolean supports(Capability capability) {
129	return supportedCaps.contains(capability);	5✔
130	}
131	}

torand / FasterSQL / 15294773771

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