HBX-2742: Create Interface for ConfigurationWrapper

  - Add new test case 'org.hibernate.tool.orm.jbt.api.ConfigurationWrapperTest#testGetNamingStrategy()'
  - Add new default interface method 'org.hibernate.tool.orm.jbt.api.ConfigurationWrapper#getNamingStrategy()'

Signed-off-by: Koen Aers <koen.aers@gmail.com>

jbt/src/main/java/org/hibernate/tool/orm/jbt/api/ConfigurationWrapper.java

@@ -8,6 +8,7 @@
 import org.hibernate.cfg.Configuration;
 import org.hibernate.cfg.NamingStrategy;
 import org.hibernate.mapping.PersistentClass;
+import org.hibernate.mapping.Table;
 import org.hibernate.tool.api.reveng.RevengStrategy;
 import org.hibernate.tool.orm.jbt.util.JpaConfiguration;
 import org.hibernate.tool.orm.jbt.util.NativeConfiguration;
@@ -99,5 +100,12 @@ default EntityResolver getEntityResolver() {
 		if (wrappedObject instanceof JpaConfiguration) return ((JpaConfiguration)wrappedObject).getEntityResolver();
 		return null;
 	}
+	default Iterator<Table> getTableMappings() {
+		Object wrappedObject = getWrappedObject();
+		if (wrappedObject instanceof NativeConfiguration) return ((NativeConfiguration)wrappedObject).getTableMappings();
+		if (wrappedObject instanceof RevengConfiguration) return ((RevengConfiguration)wrappedObject).getTableMappings();
+		if (wrappedObject instanceof JpaConfiguration) return ((JpaConfiguration)wrappedObject).getTableMappings();
+		return null;
+	}
 
 }

jbt/src/test/java/org/hibernate/tool/orm/jbt/api/ConfigurationWrapperTest.java

@@ -32,6 +32,7 @@
 import org.hibernate.cfg.DefaultNamingStrategy;
 import org.hibernate.cfg.NamingStrategy;
 import org.hibernate.mapping.PersistentClass;
+import org.hibernate.mapping.Table;
 import org.hibernate.tool.api.reveng.RevengStrategy;
 import org.hibernate.tool.internal.reveng.strategy.DefaultStrategy;
 import org.hibernate.tool.orm.jbt.internal.factory.ConfigurationWrapperFactory;
@@ -41,7 +42,6 @@
 import org.hibernate.tool.orm.jbt.util.MockDialect;
 import org.hibernate.tool.orm.jbt.util.NativeConfiguration;
 import org.hibernate.tool.orm.jbt.util.RevengConfiguration;
-import org.hibernate.tool.orm.jbt.wrp.ConfigurationWrapperFactoryTest.FooBar;
 import org.hibernate.tool.orm.jbt.wrp.SessionFactoryWrapper;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
@@ -52,6 +52,9 @@
 import org.xml.sax.EntityResolver;
 import org.xml.sax.helpers.DefaultHandler;
 
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+
 public class ConfigurationWrapperTest {
 
 	private static final String TEST_HBM_XML_STRING =
@@ -87,6 +90,10 @@ static class Foo {
 		public String id;
 	}
 
+	@Entity public class FooBar {
+		@Id public int id;
+	}
+
 	@TempDir
 	public File tempRoot;
 
@@ -785,6 +792,59 @@ public void testGetEntityResolver() throws Exception {
 		}
 	}
 
+	@Test
+	public void testGetTableMappings() throws Exception {
+		// For native configuration
+		String fooHbmXmlFilePath = "org/hibernate/tool/orm/jbt/api";
+		String fooHbmXmlFileName = "ConfigurationWrapperTest$Foo.hbm.xml";
+		URL url = getClass().getProtectionDomain().getCodeSource().getLocation();
+		File hbmXmlFileDir = new File(new File(url.toURI()),fooHbmXmlFilePath);
+		hbmXmlFileDir.deleteOnExit();
+		hbmXmlFileDir.mkdirs();
+		File hbmXmlFile = new File(hbmXmlFileDir, fooHbmXmlFileName);
+		hbmXmlFile.deleteOnExit();
+		FileWriter fileWriter = new FileWriter(hbmXmlFile);
+		fileWriter.write(TEST_HBM_XML_STRING);
+		fileWriter.close();
+		wrappedNativeConfiguration.addClass(Foo.class);
+		Iterator<Table> tableMappings = nativeConfigurationWrapper.getTableMappings();
+		assertTrue(tableMappings.hasNext());
+		Table fooTableFacade = tableMappings.next();
+		assertEquals(fooTableFacade.getName(), "ConfigurationWrapperTest$Foo");
+		tableMappings = null;
+		assertNull(tableMappings);
+		fooTableFacade = null;
+		assertNull(fooTableFacade);
+		// For reveng configuration
+		Connection connection = DriverManager.getConnection("jdbc:h2:mem:test");
+		Statement statement = connection.createStatement();
+		statement.execute("CREATE TABLE FOO(id int primary key, bar varchar(255))");
+		wrappedRevengConfiguration.setProperty("hibernate.connection.url", "jdbc:h2:mem:test");
+		wrappedRevengConfiguration.setProperty("hibernate.default_schema", "PUBLIC");
+		tableMappings = revengConfigurationWrapper.getTableMappings();
+		assertNotNull(tableMappings);
+		assertFalse(tableMappings.hasNext());
+		((RevengConfiguration)wrappedRevengConfiguration).readFromJDBC();
+		tableMappings = revengConfigurationWrapper.getTableMappings();
+		assertNotNull(tableMappings);
+		assertTrue(tableMappings.hasNext());
+		fooTableFacade = tableMappings.next();
+		assertEquals(fooTableFacade.getName(), "FOO");
+		statement.execute("DROP TABLE FOO");
+		statement.close();
+		connection.close();
+		tableMappings = null;
+		assertNull(tableMappings);
+		fooTableFacade = null;
+		assertNull(fooTableFacade);
+		// For jpa configuration
+		tableMappings = jpaConfigurationWrapper.getTableMappings();
+		assertNotNull(tableMappings);
+		assertTrue(tableMappings.hasNext());
+		fooTableFacade = tableMappings.next();
+		assertEquals(fooTableFacade.getName(), "ConfigurationWrapperTest$FooBar");
+	}
+
 	private void createPersistenceXml() throws Exception {
 		File metaInf = new File(tempRoot, "META-INF");
 		metaInf.mkdirs();