jodd-db/src/main/java/jodd/db/oom/sqlgen/DbEntitySql.java
public DbSqlBuilder update(final Object entity) {
		String tableRef = createTableRefName(entity);

		if (!dbOomConfig.isUpdateAcceptsTableAlias()) {
			tableRef = null;
		}

		return sql().$(UPDATE).table(entity, tableRef).set(tableRef, entity).$(WHERE).matchIds(tableRef, entity);
	}
public DbSqlBuilder update(final Object entity) {
		String tableRef = createTableRefName(entity);

		if (!dbOomConfig.isUpdateAcceptsTableAlias()) {
			tableRef = null;
		}

		return sql().$(UPDATE).table(entity, tableRef).set(tableRef, entity).$(WHERE).matchIds(tableRef, entity);
	}
Creates UPDATE query that updates all non-null values of an entity that is matched by id.