add two additional convenience methods to HibernatePersistenceConfigu…

…ration

improve some jdoc

hibernate-core/src/main/java/org/hibernate/cfg/JdbcSettings.java

@@ -105,6 +105,9 @@ public interface JdbcSettings extends C3p0Settings, AgroalSettings, HikariCPSett
 	 * </ul>
 	 * <p>
 	 * See section 8.2.1.9
+	 *
+	 * @see java.sql.DriverManager#getConnection(String, String, String)
+	 * @see javax.sql.DataSource#getConnection(String, String)
 	 */
 	String JAKARTA_JDBC_USER = "jakarta.persistence.jdbc.user";
 
@@ -115,6 +118,9 @@ public interface JdbcSettings extends C3p0Settings, AgroalSettings, HikariCPSett
 	 * and {@link #JAKARTA_JDBC_USER} to specify how to connect to the database.
 	 * <p>
 	 * See JPA 2 section 8.2.1.9
+	 *
+	 * @see java.sql.DriverManager#getConnection(String, String, String)
+	 * @see javax.sql.DataSource#getConnection(String, String)
 	 */
 	String JAKARTA_JDBC_PASSWORD = "jakarta.persistence.jdbc.password";
 
@@ -256,11 +262,13 @@ public interface JdbcSettings extends C3p0Settings, AgroalSettings, HikariCPSett
 	 * {@link org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl}.
 	 * <p>
 	 * Possible values are enumerated by {@link java.sql.Connection}:
-	 * {@code NONE}, {@code READ_UNCOMMITTED}, {@code READ_COMMITTED},
+	 * {@code READ_UNCOMMITTED}, {@code READ_COMMITTED},
 	 * {@code REPEATABLE_READ}, {@code SERIALIZABLE}.
 	 * <p>
 	 * If this setting is not explicitly specified, Hibernate does not modify
 	 * the transaction isolation level of the JDBC connection.
+	 *
+	 * @see java.sql.Connection#setTransactionIsolation(int)
 	 */
 	String ISOLATION = "hibernate.connection.isolation";
 
@@ -270,6 +278,8 @@ public interface JdbcSettings extends C3p0Settings, AgroalSettings, HikariCPSett
 	 * including every built-in implementation except for
 	 * {@link org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl}.
 	 *
+	 * @see java.sql.Connection#setAutoCommit(boolean)
+	 *
 	 * @settingDefault {@code false}
 	 */
 	String AUTOCOMMIT = "hibernate.connection.autocommit";

hibernate-core/src/main/java/org/hibernate/jpa/HibernatePersistenceConfiguration.java

@@ -99,8 +99,8 @@ public SessionFactory createEntityManagerFactory() {
 	}
 
 	/**
-	 * JDBC driver class name for non-{@link javax.sql.DataSource DataSource}
-	 * connection.
+	 * JDBC driver class name. This setting is ignored when Hibernate is configured
+	 * to obtain connections from a {@link javax.sql.DataSource}.
 	 *
 	 * @see #JDBC_DRIVER
 	 */
@@ -110,7 +110,8 @@ public HibernatePersistenceConfiguration jdbcDriver(String driverName) {
 	}
 
 	/**
-	 * JDBC URL of non-{@link javax.sql.DataSource DataSource} JDBC connection.
+	 * JDBC URL. This setting is ignored when Hibernate is configured to obtain
+	 * connections from a {@link javax.sql.DataSource}.
 	 *
 	 * @see #JDBC_URL
 	 */
@@ -120,35 +121,40 @@ public HibernatePersistenceConfiguration jdbcUrl(String url) {
 	}
 
 	/**
-	 * Username for non-{@link javax.sql.DataSource DataSource} JDBC connection.
+	 * Username for JDBC authentication.
 	 *
 	 * @see #JDBC_USER
 	 * @see #jdbcPassword
+	 * @see java.sql.DriverManager#getConnection(String, String, String)
+	 * @see javax.sql.DataSource#getConnection(String, String)
 	 */
 	public HibernatePersistenceConfiguration jdbcUsername(String username) {
 		property( JDBC_USER, username );
 		return this;
 	}
 
 	/**
-	 * Password for non-{@link javax.sql.DataSource DataSource} JDBC connection.
+	 * Password for JDBC authentication.
 	 *
 	 * @see #JDBC_PASSWORD
 	 * @see #jdbcUsername
+	 * @see java.sql.DriverManager#getConnection(String, String, String)
+	 * @see javax.sql.DataSource#getConnection(String, String)
 	 */
 	public HibernatePersistenceConfiguration jdbcPassword(String password) {
 		property( JDBC_PASSWORD, password );
 		return this;
 	}
 
 	/**
-	 * Username and password for non-{@link javax.sql.DataSource DataSource}
-	 * JDBC connection.
+	 * Username and password for JDBC authentication.
 	 *
 	 * @see #JDBC_USER
 	 * @see #JDBC_PASSWORD
 	 * @see #jdbcUsername
 	 * @see #jdbcPassword
+	 * @see java.sql.DriverManager#getConnection(String, String, String)
+	 * @see javax.sql.DataSource#getConnection(String, String)
 	 */
 	public HibernatePersistenceConfiguration jdbcCredentials(String username, String password) {
 		jdbcUsername( username );
@@ -157,7 +163,8 @@ public HibernatePersistenceConfiguration jdbcCredentials(String username, String
 	}
 
 	/**
-	 * The JDBC connection pool size.
+	 * The JDBC connection pool size. This setting is ignored when Hibernate is
+	 * configured to obtain connections from a {@link javax.sql.DataSource}.
 	 *
 	 * @see JdbcSettings#POOL_SIZE
 	 */
@@ -166,6 +173,36 @@ public HibernatePersistenceConfiguration jdbcPoolSize(int poolSize) {
 		return this;
 	}
 
+	/**
+	 * The JDBC {@linkplain java.sql.Connection#setAutoCommit autocommit mode}
+	 * for pooled connections. This setting is ignored when Hibernate is
+	 * configured to obtain connections from a {@link javax.sql.DataSource}.
+	 *
+	 * @see JdbcSettings#AUTOCOMMIT
+	 */
+	public HibernatePersistenceConfiguration jdbcAutocommit(boolean autocommit) {
+		property( JdbcSettings.AUTOCOMMIT, autocommit );
+		return this;
+	}
+
+	/**
+	 * The JDBC {@linkplain java.sql.Connection#setTransactionIsolation transaction
+	 * isolation level}. This setting is ignored when Hibernate is configured to
+	 * obtain connections from a {@link javax.sql.DataSource}.
+	 * <p>
+	 * Possible values are enumerated by {@link java.sql.Connection}:
+	 * {@link java.sql.Connection#TRANSACTION_READ_UNCOMMITTED},
+	 * {@link java.sql.Connection#TRANSACTION_READ_COMMITTED},
+	 * {@link java.sql.Connection#TRANSACTION_REPEATABLE_READ}, and
+	 * {@link java.sql.Connection#TRANSACTION_SERIALIZABLE}.
+	 *
+	 * @see JdbcSettings#ISOLATION
+	 */
+	public HibernatePersistenceConfiguration jdbcTransactionIsolation(int isolationLevel) {
+		property( JdbcSettings.ISOLATION, isolationLevel );
+		return this;
+	}
+
 	/**
 	 * Enables SQL logging to the console.
 	 * <p>