1488

Committed 07 Mar 2025 04:31PM CUT coverage: 100.0%. Remained the same

Build # 1488

Build Type

Pull #918

github

Committed by

web-flow

Commit Message

Merge 10fe79dbe into eeedb4038

Pull Request Pull Request #918: Add a Kotlin example of a custom condition

Run Details

200 of 200 branches covered (100.0%)

Branch coverage included in aggregate %.

4993 of 4993 relevant lines covered (100.0%)

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/src/main/java/org/mybatis/dynamic/sql/AbstractSingleValueCondition.java

/*
 *    Copyright 2016-2025 the original author or authors.
 *
 *    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
 *
 *       https://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 org.mybatis.dynamic.sql;

import static org.mybatis.dynamic.sql.util.StringUtilities.spaceBefore;

import java.util.function.Function;
import java.util.function.Predicate;
import java.util.function.Supplier;

import org.mybatis.dynamic.sql.render.RenderedParameterInfo;
import org.mybatis.dynamic.sql.render.RenderingContext;
import org.mybatis.dynamic.sql.util.FragmentAndParameters;

public abstract class AbstractSingleValueCondition<T> implements RenderableCondition<T> {
    protected final T value;

    protected AbstractSingleValueCondition(T value) {
        this.value = value;
    }

    public T value() {
        return value;
    }

    protected <S extends AbstractSingleValueCondition<T>> S filterSupport(Predicate<? super T> predicate,
            Supplier<S> emptySupplier, S self) {
        if (isEmpty()) {
            return self;
        } else {
            return predicate.test(value) ? self : emptySupplier.get();
        }
    }

    protected <R, S extends AbstractSingleValueCondition<R>> S mapSupport(Function<? super T, ? extends R> mapper,
            Function<R, S> constructor, Supplier<S> emptySupplier) {
        if (isEmpty()) {
            return emptySupplier.get();
        } else {
            return constructor.apply(mapper.apply(value));
        }
    }

    /**
     * If renderable and the value matches the predicate, returns this condition. Else returns a condition
     *     that will not render.
     *
     * @param predicate predicate applied to the value, if renderable
     * @return this condition if renderable and the value matches the predicate, otherwise a condition
     *     that will not render.
     */
    public abstract AbstractSingleValueCondition<T> filter(Predicate<? super T> predicate);

    public abstract String operator();

    @Override
    public FragmentAndParameters renderCondition(RenderingContext renderingContext, BindableColumn<T> leftColumn) {
        RenderedParameterInfo parameterInfo = renderingContext.calculateParameterInfo(leftColumn);
        String finalFragment = operator() + spaceBefore(parameterInfo.renderedPlaceHolder());

        return FragmentAndParameters.withFragment(finalFragment)
                .withParameter(parameterInfo.parameterMapKey(), leftColumn.convertParameterType(value()))
                .build();
    }
}

1	/*
2	* Copyright 2016-2025 the original author or authors.
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	* https://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 org.mybatis.dynamic.sql;
17
18	import static org.mybatis.dynamic.sql.util.StringUtilities.spaceBefore;
19
20	import java.util.function.Function;
21	import java.util.function.Predicate;
22	import java.util.function.Supplier;
23
24	import org.mybatis.dynamic.sql.render.RenderedParameterInfo;
25	import org.mybatis.dynamic.sql.render.RenderingContext;
26	import org.mybatis.dynamic.sql.util.FragmentAndParameters;
27
28	public abstract class AbstractSingleValueCondition<T> implements RenderableCondition<T> {
29	protected final T value;
30
31	protected AbstractSingleValueCondition(T value) {	1✔
32	this.value = value;	1✔
33	}	1✔
34
35	public T value() {
36	return value;	1✔
37	}
38
39	protected <S extends AbstractSingleValueCondition<T>> S filterSupport(Predicate<? super T> predicate,
40	Supplier<S> emptySupplier, S self) {
41	if (isEmpty()) {	1✔
42	return self;	1✔
43	} else {
44	return predicate.test(value) ? self : emptySupplier.get();	1✔
45	}
46	}
47
48	protected <R, S extends AbstractSingleValueCondition<R>> S mapSupport(Function<? super T, ? extends R> mapper,
49	Function<R, S> constructor, Supplier<S> emptySupplier) {
50	if (isEmpty()) {	1✔
51	return emptySupplier.get();	1✔
52	} else {
53	return constructor.apply(mapper.apply(value));	1✔
54	}
55	}
56
57	/**
58	* If renderable and the value matches the predicate, returns this condition. Else returns a condition
59	* that will not render.
60	*
61	* @param predicate predicate applied to the value, if renderable
62	* @return this condition if renderable and the value matches the predicate, otherwise a condition
63	* that will not render.
64	*/
65	public abstract AbstractSingleValueCondition<T> filter(Predicate<? super T> predicate);
66
67	public abstract String operator();
68
69	@Override
70	public FragmentAndParameters renderCondition(RenderingContext renderingContext, BindableColumn<T> leftColumn) {
71	RenderedParameterInfo parameterInfo = renderingContext.calculateParameterInfo(leftColumn);	1✔
72	String finalFragment = operator() + spaceBefore(parameterInfo.renderedPlaceHolder());	1✔
73
74	return FragmentAndParameters.withFragment(finalFragment)	1✔
75	.withParameter(parameterInfo.parameterMapKey(), leftColumn.convertParameterType(value()))	1✔
76	.build();	1✔
77	}
78	}

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