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mybatis / mybatis-dynamic-sql / 1564

05 Jun 2025 02:27AM CUT coverage: 100.0%. Remained the same
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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/AbstractNoValueCondition.java
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/*
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 *    Copyright 2016-2025 the original author or authors.
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 *
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 *    Licensed under the Apache License, Version 2.0 (the "License");
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 *    you may not use this file except in compliance with the License.
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 *    You may obtain a copy of the License at
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 *
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 *       https://www.apache.org/licenses/LICENSE-2.0
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 *
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 *    Unless required by applicable law or agreed to in writing, software
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 *    distributed under the License is distributed on an "AS IS" BASIS,
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 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 *    See the License for the specific language governing permissions and
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 *    limitations under the License.
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 */
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package org.mybatis.dynamic.sql;
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import java.util.function.BooleanSupplier;
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import java.util.function.Supplier;
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import org.mybatis.dynamic.sql.render.RenderingContext;
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import org.mybatis.dynamic.sql.util.FragmentAndParameters;
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public abstract class AbstractNoValueCondition<T> implements RenderableCondition<T> {
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    protected <S extends AbstractNoValueCondition<?>> S filterSupport(BooleanSupplier booleanSupplier,
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            Supplier<S> emptySupplier, S self) {
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        if (isEmpty()) {
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            return self;
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        } else {
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            return booleanSupplier.getAsBoolean() ? self : emptySupplier.get();
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        }
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    }
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    public abstract String operator();
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    @Override
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    public FragmentAndParameters renderCondition(RenderingContext renderingContext, BindableColumn<T> leftColumn) {
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        return FragmentAndParameters.fromFragment(operator());
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    }
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    /**
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     * Conditions may implement Filterable to add optionality to rendering.
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     *
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     * <p>If a condition is Filterable, then a user may add a filter to the usage of the condition that makes a decision
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     * whether to render the condition at runtime. Conditions that fail the filter will be dropped from the
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     * rendered SQL.
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     *
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     * <p>Implementations of Filterable may call
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     * {@link AbstractNoValueCondition#filterSupport(BooleanSupplier, Supplier, AbstractNoValueCondition)} as
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     * a common implementation of the filtering algorithm.
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     */
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    public interface Filterable {
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        /**
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         * If renderable and the supplier returns true, returns this condition. Else returns a condition that will not
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         * render.
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         *
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         * @param booleanSupplier
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         *            function that specifies whether the condition should render
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         * @param <S>
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         *            condition type - not used except for compilation compliance
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         *
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         * @return this condition if renderable and the supplier returns true, otherwise a condition that will not
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         *     render.
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         */
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        <S> AbstractNoValueCondition<S> filter(BooleanSupplier booleanSupplier);
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    }
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}
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