1564

Committed 05 Jun 2025 02:27AM CUT coverage: 100.0%. Remained the same

Build # 1564

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github

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web-flow

Commit Message

Merge pull request #946 from mybatis/renovate/org.codehaus.mojo-build-helper-maven-plugin-3.x

Update dependency org.codehaus.mojo:build-helper-maven-plugin to v3.6.1

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/src/main/java/org/mybatis/dynamic/sql/AbstractListValueCondition.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 java.util.Collection;
import java.util.Objects;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.function.Supplier;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.jspecify.annotations.NonNull;
import org.mybatis.dynamic.sql.render.RenderedParameterInfo;
import org.mybatis.dynamic.sql.render.RenderingContext;
import org.mybatis.dynamic.sql.util.FragmentAndParameters;
import org.mybatis.dynamic.sql.util.FragmentCollector;

public abstract class AbstractListValueCondition<T> implements RenderableCondition<T> {
    protected final Collection<T> values;

    protected AbstractListValueCondition(Collection<T> values) {
        this.values = Objects.requireNonNull(values);
    }

    public final Stream<T> values() {
        return values.stream();
    }

    @Override
    public boolean isEmpty() {
        return values.isEmpty();
    }

    private <R> Collection<R> applyMapper(Function<? super T, ? extends R> mapper) {
        Objects.requireNonNull(mapper);
        return values().map(mapper).collect(Collectors.toList());
    }

    private Collection<T> applyFilter(Predicate<? super T> predicate) {
        Objects.requireNonNull(predicate);
        return values().filter(predicate).toList();
    }

    protected <S extends AbstractListValueCondition<T>> S filterSupport(Predicate<? super T> predicate,
            Function<Collection<T>, S> constructor, S self, Supplier<S> emptySupplier) {
        if (isEmpty()) {
            return self;
        } else {
            Collection<T> filtered = applyFilter(predicate);
            return filtered.isEmpty() ? emptySupplier.get() : constructor.apply(filtered);
        }
    }

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

    public abstract String operator();

    @Override
    public FragmentAndParameters renderCondition(RenderingContext renderingContext, BindableColumn<T> leftColumn) {
        return values().map(v -> toFragmentAndParameters(v, renderingContext, leftColumn))
                .collect(FragmentCollector.collect())
                .toFragmentAndParameters(Collectors.joining(",", //$NON-NLS-1$
                        operator() + " (", ")")); //$NON-NLS-1$ //$NON-NLS-2$
    }

    private FragmentAndParameters toFragmentAndParameters(T value, RenderingContext renderingContext,
                                                          BindableColumn<T> leftColumn) {
        RenderedParameterInfo parameterInfo = renderingContext.calculateParameterInfo(leftColumn);
        return FragmentAndParameters.withFragment(parameterInfo.renderedPlaceHolder())
                .withParameter(parameterInfo.parameterMapKey(), leftColumn.convertParameterType(value))
                .build();
    }

    /**
     * Conditions may implement Filterable to add optionality to rendering.
     *
     * <p>If a condition is Filterable, then a user may add a filter to the usage of the condition that makes a decision
     * whether to render the condition at runtime. Conditions that fail the filter will be dropped from the
     * rendered SQL.
     *
     * <p>Implementations of Filterable may call
     * {@link AbstractListValueCondition#filterSupport(Predicate, Function, AbstractListValueCondition, Supplier)} as
     * a common implementation of the filtering algorithm.
     *
     * @param <T> the Java type related to the database column type
     */
    public interface Filterable<T> {
        /**
         * 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.
         */
        AbstractListValueCondition<T> filter(Predicate<? super @NonNull T> predicate);
    }

    /**
     * Conditions may implement Mappable to alter condition values or types during rendering.
     *
     * <p>If a condition is Mappable, then a user may add a mapper to the usage of the condition that can alter the
     * values of a condition, or change that datatype.
     *
     * <p>Implementations of Mappable may call
     * {@link AbstractListValueCondition#mapSupport(Function, Function, Supplier)} as
     * a common implementation of the mapping algorithm.
     *
     * @param <T> the Java type related to the database column type
     */
    public interface Mappable<T> {
        /**
         * If renderable, apply the mapping to the value and return a new condition with the new value. Else return a
         * condition that will not render (this).
         *
         * @param mapper a mapping function to apply to the value, if renderable
         * @param <R> type of the new condition
         * @return a new condition with the result of applying the mapper to the value of this condition,
         *     if renderable, otherwise a condition that will not render.
         */
        <R> AbstractListValueCondition<R> map(Function<? super @NonNull T, ? extends R> mapper);
    }
}

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 java.util.Collection;
19	import java.util.Objects;
20	import java.util.function.Function;
21	import java.util.function.Predicate;
22	import java.util.function.Supplier;
23	import java.util.stream.Collectors;
24	import java.util.stream.Stream;
25
26	import org.jspecify.annotations.NonNull;
27	import org.mybatis.dynamic.sql.render.RenderedParameterInfo;
28	import org.mybatis.dynamic.sql.render.RenderingContext;
29	import org.mybatis.dynamic.sql.util.FragmentAndParameters;
30	import org.mybatis.dynamic.sql.util.FragmentCollector;
31
32	public abstract class AbstractListValueCondition<T> implements RenderableCondition<T> {
33	protected final Collection<T> values;
34
35	protected AbstractListValueCondition(Collection<T> values) {	1✔
36	this.values = Objects.requireNonNull(values);	1✔
37	}	1✔
38
39	public final Stream<T> values() {
40	return values.stream();	1✔
41	}
42
43	@Override
44	public boolean isEmpty() {
45	return values.isEmpty();	1✔
46	}
47
48	private <R> Collection<R> applyMapper(Function<? super T, ? extends R> mapper) {
49	Objects.requireNonNull(mapper);	1✔
50	return values().map(mapper).collect(Collectors.toList());	1✔
51	}
52
53	private Collection<T> applyFilter(Predicate<? super T> predicate) {
54	Objects.requireNonNull(predicate);	1✔
55	return values().filter(predicate).toList();	1✔
56	}
57
58	protected <S extends AbstractListValueCondition<T>> S filterSupport(Predicate<? super T> predicate,
59	Function<Collection<T>, S> constructor, S self, Supplier<S> emptySupplier) {
60	if (isEmpty()) {	1✔
61	return self;	1✔
62	} else {
63	Collection<T> filtered = applyFilter(predicate);	1✔
64	return filtered.isEmpty() ? emptySupplier.get() : constructor.apply(filtered);	1✔
65	}
66	}
67
68	protected <R, S extends AbstractListValueCondition<R>> S mapSupport(Function<? super T, ? extends R> mapper,
69	Function<Collection<R>, S> constructor, Supplier<S> emptySupplier) {
70	if (isEmpty()) {	1✔
71	return emptySupplier.get();	1✔
72	} else {
73	return constructor.apply(applyMapper(mapper));	1✔
74	}
75	}
76
77	public abstract String operator();
78
79	@Override
80	public FragmentAndParameters renderCondition(RenderingContext renderingContext, BindableColumn<T> leftColumn) {
81	return values().map(v -> toFragmentAndParameters(v, renderingContext, leftColumn))	1✔
82	.collect(FragmentCollector.collect())	1✔
83	.toFragmentAndParameters(Collectors.joining(",", //$NON-NLS-1$	1✔
84	operator() + " (", ")")); //$NON-NLS-1$ //$NON-NLS-2$	1✔
85	}
86
87	private FragmentAndParameters toFragmentAndParameters(T value, RenderingContext renderingContext,
88	BindableColumn<T> leftColumn) {
89	RenderedParameterInfo parameterInfo = renderingContext.calculateParameterInfo(leftColumn);	1✔
90	return FragmentAndParameters.withFragment(parameterInfo.renderedPlaceHolder())	1✔
91	.withParameter(parameterInfo.parameterMapKey(), leftColumn.convertParameterType(value))	1✔
92	.build();	1✔
93	}
94
95	/**
96	* Conditions may implement Filterable to add optionality to rendering.
97	*
98	* <p>If a condition is Filterable, then a user may add a filter to the usage of the condition that makes a decision
99	* whether to render the condition at runtime. Conditions that fail the filter will be dropped from the
100	* rendered SQL.
101	*
102	* <p>Implementations of Filterable may call
103	* {@link AbstractListValueCondition#filterSupport(Predicate, Function, AbstractListValueCondition, Supplier)} as
104	* a common implementation of the filtering algorithm.
105	*
106	* @param <T> the Java type related to the database column type
107	*/
108	public interface Filterable<T> {
109	/**
110	* If renderable and the value matches the predicate, returns this condition. Else returns a condition
111	* that will not render.
112	*
113	* @param predicate predicate applied to the value, if renderable
114	* @return this condition if renderable and the value matches the predicate, otherwise a condition
115	* that will not render.
116	*/
117	AbstractListValueCondition<T> filter(Predicate<? super @NonNull T> predicate);
118	}
119
120	/**
121	* Conditions may implement Mappable to alter condition values or types during rendering.
122	*
123	* <p>If a condition is Mappable, then a user may add a mapper to the usage of the condition that can alter the
124	* values of a condition, or change that datatype.
125	*
126	* <p>Implementations of Mappable may call
127	* {@link AbstractListValueCondition#mapSupport(Function, Function, Supplier)} as
128	* a common implementation of the mapping algorithm.
129	*
130	* @param <T> the Java type related to the database column type
131	*/
132	public interface Mappable<T> {
133	/**
134	* If renderable, apply the mapping to the value and return a new condition with the new value. Else return a
135	* condition that will not render (this).
136	*
137	* @param mapper a mapping function to apply to the value, if renderable
138	* @param <R> type of the new condition
139	* @return a new condition with the result of applying the mapper to the value of this condition,
140	* if renderable, otherwise a condition that will not render.
141	*/
142	<R> AbstractListValueCondition<R> map(Function<? super @NonNull T, ? extends R> mapper);
143	}
144	}

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