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%)

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/src/main/java/org/mybatis/dynamic/sql/AbstractTwoValueCondition.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.BiFunction;
import java.util.function.BiPredicate;
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 AbstractTwoValueCondition<T> implements RenderableCondition<T> {
    protected final T value1;
    protected final T value2;

    protected AbstractTwoValueCondition(T value1, T value2) {
        this.value1 = value1;
        this.value2 = value2;
    }

    public T value1() {
        return value1;
    }

    public T value2() {
        return value2;
    }

    protected <S extends AbstractTwoValueCondition<T>> S filterSupport(BiPredicate<? super T, ? super T> predicate,
            Supplier<S> emptySupplier, S self) {
        if (isEmpty()) {
            return self;
        } else {
            return predicate.test(value1, value2) ? self : emptySupplier.get();
        }
    }

    protected <S extends AbstractTwoValueCondition<T>> S filterSupport(Predicate<? super T> predicate,
            Supplier<S> emptySupplier, S self) {
        return filterSupport((v1, v2) -> predicate.test(v1) && predicate.test(v2), emptySupplier, self);
    }

    protected <R, S extends AbstractTwoValueCondition<R>> S mapSupport(Function<? super T, ? extends R> mapper1,
            Function<? super T, ? extends R> mapper2, BiFunction<R, R, S> constructor, Supplier<S> emptySupplier) {
        if (isEmpty()) {
            return emptySupplier.get();
        } else {
            return constructor.apply(mapper1.apply(value1), mapper2.apply(value2));
        }
    }

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

    /**
     * If renderable and both values match the predicate, returns this condition. Else returns a condition
     *     that will not render. This function implements a short-circuiting test. If the
     *     first value does not match the predicate, then the second value will not be tested.
     *
     * @param predicate predicate applied to both values, if renderable
     * @return this condition if renderable and the values match the predicate, otherwise a condition
     *     that will not render.
     */
    public abstract AbstractTwoValueCondition<T> filter(Predicate<? super T> predicate);

    public abstract String operator1();

    public abstract String operator2();

    @Override
    public FragmentAndParameters renderCondition(RenderingContext renderingContext, BindableColumn<T> leftColumn) {
        RenderedParameterInfo parameterInfo1 = renderingContext.calculateParameterInfo(leftColumn);
        RenderedParameterInfo parameterInfo2 = renderingContext.calculateParameterInfo(leftColumn);

        String finalFragment = operator1()
                + spaceBefore(parameterInfo1.renderedPlaceHolder())
                + spaceBefore(operator2())
                + spaceBefore(parameterInfo2.renderedPlaceHolder());

        return FragmentAndParameters.withFragment(finalFragment)
                .withParameter(parameterInfo1.parameterMapKey(), leftColumn.convertParameterType(value1()))
                .withParameter(parameterInfo2.parameterMapKey(), leftColumn.convertParameterType(value2()))
                .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.BiFunction;
21	import java.util.function.BiPredicate;
22	import java.util.function.Function;
23	import java.util.function.Predicate;
24	import java.util.function.Supplier;
25
26	import org.mybatis.dynamic.sql.render.RenderedParameterInfo;
27	import org.mybatis.dynamic.sql.render.RenderingContext;
28	import org.mybatis.dynamic.sql.util.FragmentAndParameters;
29
30	public abstract class AbstractTwoValueCondition<T> implements RenderableCondition<T> {
31	protected final T value1;
32	protected final T value2;
33
34	protected AbstractTwoValueCondition(T value1, T value2) {	1✔
35	this.value1 = value1;	1✔
36	this.value2 = value2;	1✔
37	}	1✔
38
39	public T value1() {
40	return value1;	1✔
41	}
42
43	public T value2() {
44	return value2;	1✔
45	}
46
47	protected <S extends AbstractTwoValueCondition<T>> S filterSupport(BiPredicate<? super T, ? super T> predicate,
48	Supplier<S> emptySupplier, S self) {
49	if (isEmpty()) {	1✔
50	return self;	1✔
51	} else {
52	return predicate.test(value1, value2) ? self : emptySupplier.get();	1✔
53	}
54	}
55
56	protected <S extends AbstractTwoValueCondition<T>> S filterSupport(Predicate<? super T> predicate,
57	Supplier<S> emptySupplier, S self) {
58	return filterSupport((v1, v2) -> predicate.test(v1) && predicate.test(v2), emptySupplier, self);	1✔
59	}
60
61	protected <R, S extends AbstractTwoValueCondition<R>> S mapSupport(Function<? super T, ? extends R> mapper1,
62	Function<? super T, ? extends R> mapper2, BiFunction<R, R, S> constructor, Supplier<S> emptySupplier) {
63	if (isEmpty()) {	1✔
64	return emptySupplier.get();	1✔
65	} else {
66	return constructor.apply(mapper1.apply(value1), mapper2.apply(value2));	1✔
67	}
68	}
69
70	/**
71	* If renderable and the values match the predicate, returns this condition. Else returns a condition
72	* that will not render.
73	*
74	* @param predicate predicate applied to the values, if renderable
75	* @return this condition if renderable and the values match the predicate, otherwise a condition
76	* that will not render.
77	*/
78	public abstract AbstractTwoValueCondition<T> filter(BiPredicate<? super T, ? super T> predicate);
79
80	/**
81	* If renderable and both values match the predicate, returns this condition. Else returns a condition
82	* that will not render. This function implements a short-circuiting test. If the
83	* first value does not match the predicate, then the second value will not be tested.
84	*
85	* @param predicate predicate applied to both values, if renderable
86	* @return this condition if renderable and the values match the predicate, otherwise a condition
87	* that will not render.
88	*/
89	public abstract AbstractTwoValueCondition<T> filter(Predicate<? super T> predicate);
90
91	public abstract String operator1();
92
93	public abstract String operator2();
94
95	@Override
96	public FragmentAndParameters renderCondition(RenderingContext renderingContext, BindableColumn<T> leftColumn) {
97	RenderedParameterInfo parameterInfo1 = renderingContext.calculateParameterInfo(leftColumn);	1✔
98	RenderedParameterInfo parameterInfo2 = renderingContext.calculateParameterInfo(leftColumn);	1✔
99
100	String finalFragment = operator1()	1✔
101	+ spaceBefore(parameterInfo1.renderedPlaceHolder())	1✔
102	+ spaceBefore(operator2())	1✔
103	+ spaceBefore(parameterInfo2.renderedPlaceHolder());	1✔
104
105	return FragmentAndParameters.withFragment(finalFragment)	1✔
106	.withParameter(parameterInfo1.parameterMapKey(), leftColumn.convertParameterType(value1()))	1✔
107	.withParameter(parameterInfo2.parameterMapKey(), leftColumn.convertParameterType(value2()))	1✔
108	.build();	1✔
109	}
110	}

mybatis / mybatis-dynamic-sql / 1488

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