example.springdata.mongodb.querybyexample.MongoOperationsIntegrationTests.java Source code

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/*
 * Copyright 2016 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
 *
 *      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 example.springdata.mongodb.querybyexample;

import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
import static org.springframework.data.domain.ExampleMatcher.*;
import static org.springframework.data.domain.ExampleMatcher.GenericPropertyMatchers.*;
import static org.springframework.data.domain.ExampleMatcher.GenericPropertyMatchers.startsWith;
import static org.springframework.data.mongodb.core.query.Criteria.*;
import static org.springframework.data.mongodb.core.query.Query.*;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.domain.Example;
import org.springframework.data.domain.ExampleMatcher.StringMatcher;
import org.springframework.data.mongodb.core.MongoOperations;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.test.context.junit4.SpringRunner;

/**
 * Integration test showing the usage of MongoDB Query-by-Example support through Spring Data repositories.
 *
 * @author Mark Paluch
 * @author Oliver Gierke
 */
@SuppressWarnings("unused")
@RunWith(SpringRunner.class)
@SpringBootTest
public class MongoOperationsIntegrationTests {

    @Autowired
    MongoOperations operations;

    Person skyler, walter, flynn, marie, hank;

    @Before
    public void setUp() {

        operations.remove(new Query(), Person.class);

        this.skyler = new Person("Skyler", "White", 45);
        this.walter = new Person("Walter", "White", 50);
        this.flynn = new Person("Walter Jr. (Flynn)", "White", 17);
        this.marie = new Person("Marie", "Schrader", 38);
        this.hank = new Person("Hank", "Schrader", 43);

        operations.save(this.skyler);
        operations.save(this.walter);
        operations.save(this.flynn);
        operations.save(this.marie);
        operations.save(this.hank);
    }

    /**
     * @see #153
     */
    @Test
    public void ignoreNullProperties() {

        Query query = query(byExample(new Person(null, null, 17)));

        assertThat(operations.find(query, Person.class), hasItems(flynn));
    }

    /**
     * @see #153
     */
    @Test
    public void substringMatching() {

        Example<Person> example = Example.of(new Person("er", null, null), matching().//
                withStringMatcher(StringMatcher.ENDING));

        assertThat(operations.find(query(byExample(example)), Person.class), hasItems(skyler, walter));
    }

    /**
     * @see #154
     */
    @Test
    public void regexMatching() {

        Example<Person> example = Example.of(new Person("(Skyl|Walt)er", null, null), matching().//
                withMatcher("firstname", matcher -> matcher.regex()));

        assertThat(operations.find(query(byExample(example)), Person.class), hasItems(skyler, walter));
    }

    /**
     * @see #153
     */
    @Test
    public void matchStartingStringsIgnoreCase() {

        Example<Person> example = Example.of(new Person("Walter", "WHITE", null), matching(). //
                withIgnorePaths("age").//
                withMatcher("firstname", startsWith()).//
                withMatcher("lastname", ignoreCase()));

        assertThat(operations.find(query(byExample(example)), Person.class), hasItems(flynn, walter));
    }

    /**
     * @see #153
     */
    @Test
    public void configuringMatchersUsingLambdas() {

        Example<Person> example = Example.of(new Person("Walter", "WHITE", null), matching().//
                withIgnorePaths("age"). //
                withMatcher("firstname", matcher -> matcher.startsWith()). //
                withMatcher("lastname", matcher -> matcher.ignoreCase()));

        assertThat(operations.find(query(byExample(example)), Person.class), hasItems(flynn, walter));
    }

    /**
     * @see #153
     */
    @Test
    public void valueTransformer() {

        Example<Person> example = Example.of(new Person(null, "White", 99), matching(). //
                withMatcher("age", matcher -> matcher.transform(value -> Integer.valueOf(50))));

        assertThat(operations.find(query(byExample(example)), Person.class), hasItems(walter));
    }
}