BAEL-1157: Apache Cayenne - Advanced Querying (#2708)
* Different types of bean injection in Spring * Difference between two dates in java * Update README.md * Simple clean of difference between dates * Clean my test article * Improve dates diff: for dates and datetimes * Move difference between dates from core-java to libraries * BAEL-890 - Kotlin-Allopen with Spring example * BAEL-1107 - Introduction to Apache Cayenne Orm * BAEL-1107: update formating and version of libs * BAEL-1107: update properties of Author * BAEL-1157: Apache Cayenne - Advanced Querying * BAEL-1157: Fix imports * BAEL-1157: code indentation
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Dassi orleando
maibin
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75803f13a7
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package com.baeldung.apachecayenne;
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import com.baeldung.apachecayenne.persistent.Author;
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import org.apache.cayenne.ObjectContext;
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import org.apache.cayenne.QueryResponse;
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import org.apache.cayenne.configuration.server.ServerRuntime;
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import org.apache.cayenne.exp.Expression;
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import org.apache.cayenne.exp.ExpressionFactory;
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import org.apache.cayenne.query.*;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.BeforeClass;
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import org.junit.Test;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.List;
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import static junit.framework.Assert.assertEquals;
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import static org.junit.Assert.assertNotNull;
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public class CayenneAdvancedOperationTests {
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private static ObjectContext context = null;
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@BeforeClass
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public static void setupTheCayenneContext() {
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ServerRuntime cayenneRuntime = ServerRuntime.builder()
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.addConfig("cayenne-project.xml")
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.build();
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context = cayenneRuntime.newContext();
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}
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@Before
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public void saveThreeAuthors() {
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Author authorOne = context.newObject(Author.class);
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authorOne.setName("Paul Xavier");
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Author authorTwo = context.newObject(Author.class);
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authorTwo.setName("pAuL Smith");
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Author authorThree = context.newObject(Author.class);
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authorThree.setName("Vicky Sarra");
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context.commitChanges();
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}
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@After
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public void deleteAllAuthors() {
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SQLTemplate deleteAuthors = new SQLTemplate(Author.class, "delete from author");
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context.performGenericQuery(deleteAuthors);
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}
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@Test
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public void givenAuthors_whenFindAllSQLTmplt_thenWeGetThreeAuthors() {
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SQLTemplate select = new SQLTemplate(Author.class, "select * from Author");
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List<Author> authors = context.performQuery(select);
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assertEquals(authors.size(), 3);
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}
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@Test
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public void givenAuthors_whenFindByNameSQLTmplt_thenWeGetOneAuthor() {
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SQLTemplate select = new SQLTemplate(Author.class, "select * from Author where name = 'Vicky Sarra'");
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List<Author> authors = context.performQuery(select);
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Author author = authors.get(0);
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assertEquals(authors.size(), 1);
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assertEquals(author.getName(), "Vicky Sarra");
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}
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@Test
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public void givenAuthors_whenLikeSltQry_thenWeGetOneAuthor() {
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Expression qualifier = ExpressionFactory.likeExp(Author.NAME.getName(), "Paul%");
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SelectQuery query = new SelectQuery(Author.class, qualifier);
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List<Author> authorsTwo = context.performQuery(query);
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assertEquals(authorsTwo.size(), 1);
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}
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@Test
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public void givenAuthors_whenCtnsIgnorCaseSltQry_thenWeGetTwoAuthors() {
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Expression qualifier = ExpressionFactory.containsIgnoreCaseExp(Author.NAME.getName(), "Paul");
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SelectQuery query = new SelectQuery(Author.class, qualifier);
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List<Author> authors = context.performQuery(query);
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assertEquals(authors.size(), 2);
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}
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@Test
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public void givenAuthors_whenCtnsIgnorCaseEndsWSltQry_thenWeGetTwoAuthors() {
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Expression qualifier = ExpressionFactory.containsIgnoreCaseExp(Author.NAME.getName(), "Paul")
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.andExp(ExpressionFactory.endsWithExp(Author.NAME.getName(), "h"));
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SelectQuery query = new SelectQuery(Author.class, qualifier);
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List<Author> authors = context.performQuery(query);
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Author author = authors.get(0);
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assertEquals(authors.size(), 1);
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assertEquals(author.getName(), "pAuL Smith");
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}
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@Test
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public void givenAuthors_whenAscOrderingSltQry_thenWeGetOrderedAuthors() {
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SelectQuery query = new SelectQuery(Author.class);
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query.addOrdering(Author.NAME.asc());
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List<Author> authors = query.select(context);
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Author firstAuthor = authors.get(0);
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assertEquals(authors.size(), 3);
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assertEquals(firstAuthor.getName(), "Paul Xavier");
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}
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@Test
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public void givenAuthors_whenDescOrderingSltQry_thenWeGetOrderedAuthors() {
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SelectQuery query = new SelectQuery(Author.class);
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query.addOrdering(Author.NAME.desc());
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List<Author> authors = query.select(context);
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Author firstAuthor = authors.get(0);
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assertEquals(authors.size(), 3);
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assertEquals(firstAuthor.getName(), "pAuL Smith");
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}
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@Test
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public void givenAuthors_onContainsObjS_thenWeGetOneRecord() {
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List<Author> authors = ObjectSelect.query(Author.class)
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.where(Author.NAME.contains("Paul"))
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.select(context);
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assertEquals(authors.size(), 1);
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}
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@Test
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public void givenAuthors_whenLikeObjS_thenWeGetTwoAuthors() {
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List<Author> authors = ObjectSelect.query(Author.class)
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.where(Author.NAME.likeIgnoreCase("Paul%"))
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.select(context);
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assertEquals(authors.size(), 2);
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}
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@Test
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public void givenTwoAuthor_whenEndsWithObjS_thenWeGetOrderedAuthors() {
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List<Author> authors = ObjectSelect.query(Author.class)
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.where(Author.NAME.endsWith("Sarra"))
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.select(context);
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Author firstAuthor = authors.get(0);
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assertEquals(authors.size(), 1);
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assertEquals(firstAuthor.getName(), "Vicky Sarra");
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}
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@Test
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public void givenTwoAuthor_whenInObjS_thenWeGetAuthors() {
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String [] args = {"Paul Xavier", "pAuL Smith", "Vicky Sarra"};
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List<Author> authors = ObjectSelect.query(Author.class)
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.where(Author.NAME.in(Arrays.asList(args)))
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.select(context);
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assertEquals(authors.size(), 3);
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}
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@Test
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public void givenTwoAuthor_whenNinObjS_thenWeGetAuthors() {
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String [] args = {"Paul Xavier", "pAuL Smith"};
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List<Author> authors = ObjectSelect.query(Author.class)
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.where(Author.NAME.nin(Arrays.asList(args)))
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.select(context);
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Author author = authors.get(0);
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assertEquals(authors.size(), 1);
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assertEquals(author.getName(), "Vicky Sarra");
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}
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@Test
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public void givenTwoAuthor_whenIsNotNullObjS_thenWeGetAuthors() {
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List<Author> authors = ObjectSelect.query(Author.class)
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.where(Author.NAME.isNotNull())
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.select(context);
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assertEquals(authors.size(), 3);
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}
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@Test
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public void givenAuthors_whenFindAllEJBQL_thenWeGetThreeAuthors() {
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EJBQLQuery query = new EJBQLQuery("select a FROM Author a");
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List<Author> authors = context.performQuery(query);
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assertEquals(authors.size(), 3);
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}
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@Test
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public void givenAuthors_whenFindByNameEJBQL_thenWeGetOneAuthor() {
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EJBQLQuery query = new EJBQLQuery("select a FROM Author a WHERE a.name = 'Vicky Sarra'");
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List<Author> authors = context.performQuery(query);
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Author author = authors.get(0);
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assertEquals(authors.size(), 1);
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assertEquals(author.getName(), "Vicky Sarra");
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}
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@Test
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public void givenAuthors_whenUpdadingByNameEJBQL_thenWeGetTheUpdatedAuthor() {
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EJBQLQuery query = new EJBQLQuery("UPDATE Author AS a SET a.name = 'Vicky Edison' WHERE a.name = 'Vicky Sarra'");
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QueryResponse queryResponse = context.performGenericQuery(query);
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EJBQLQuery queryUpdatedAuthor = new EJBQLQuery("select a FROM Author a WHERE a.name = 'Vicky Edison'");
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List<Author> authors = context.performQuery(queryUpdatedAuthor);
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Author author = authors.get(0);
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assertNotNull(author);
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}
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@Test
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public void givenAuthors_whenSeletingNamesEJBQL_thenWeGetListWithSizeThree() {
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String [] args = {"Paul Xavier", "pAuL Smith", "Vicky Sarra"};
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List<String> names = Arrays.asList(args);
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EJBQLQuery query = new EJBQLQuery("select a.name FROM Author a");
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List<String> nameList = context.performQuery(query);
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Collections.sort(names);
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Collections.sort(nameList);
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assertEquals(names.size(), 3);
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assertEquals(nameList.size(), 3);
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assertEquals(names, nameList);
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}
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@Test
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public void givenAuthors_whenDeletingAllWithEJB_thenWeGetNoAuthor() {
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EJBQLQuery deleteQuery = new EJBQLQuery("delete FROM Author");
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EJBQLQuery findAllQuery = new EJBQLQuery("select a FROM Author a");
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context.performQuery(deleteQuery);
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List<Author> objects = context.performQuery(findAllQuery);
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assertEquals(objects.size(), 0);
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}
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@Test
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public void givenAuthors_whenInsertingSQLExec_thenWeGetNewAuthor() {
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int inserted = SQLExec
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.query("INSERT INTO Author (name) VALUES ('Baeldung')")
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.update(context);
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assertEquals(inserted, 1);
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}
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@Test
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public void givenAuthors_whenUpdatingSQLExec_thenItsUpdated() {
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int updated = SQLExec
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.query("UPDATE Author SET name = 'Baeldung' WHERE name = 'Vicky Sarra'")
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.update(context);
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assertEquals(updated, 1);
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}
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}
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