本文整理了Java中com.j256.ormlite.dao.Dao.iterator()方法的一些代码示例，展示了Dao.iterator()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Dao.iterator()方法的具体详情如下：
包路径：com.j256.ormlite.dao.Dao
类名称：Dao
方法名：iterator

Dao.iterator介绍

[英]This satisfies the Iterable interface for the class and allows you to iterate through the objects in the table using SQL. You can use code similar to the following:

for (Account account : accountDao) { ... }

WARNING: because the Iterator#hasNext(), Iterator#next(), etc. methods can only throw RuntimeException, the code has to wrap any SQLException with IllegalStateException. Make sure to catch IllegalStateException and look for a SQLException cause.

WARNING: The underlying results object will only be closed if you page all the way to the end of the iterator using the for() loop or if you call CloseableIterator#close() directly. You can also call the #closeLastIterator() if you are not iterating across this DAO in multiple threads.

NOTE: With this iterator you can only move forward through the object collection. See the #iterator(int) method to create a cursor that can go both directions.
[中]这满足了类的Iterable接口，并允许您使用SQL迭代表中的对象。您可以使用类似于以下内容的代码：

for (Account account : accountDao) { ... }

警告：由于迭代器#hasNext（）、迭代器#next（）等方法只能抛出RuntimeException，因此代码必须用IllegalStateException包装任何SQLException。确保捕获IllegalStateException并查找SQLException原因。
警告：只有使用for（）循环将页面一直分页到迭代器的末尾，或者直接调用CloseableIterator#close（）时，基础结果对象才会关闭。如果没有在多个线程中迭代此DAO，也可以调用#closeLastIterator（）。
注意：使用此迭代器，您只能在对象集合中前进。请参阅#迭代器（int）方法来创建可以双向移动的游标。

代码示例

代码示例来源：origin: j256/ormlite-core

/**
 * @see Dao#iterator(int)
 */
@Override
public CloseableIterator<T> iterator(int resultFlags) {
  return dao.iterator(resultFlags);
}

代码示例来源：origin: com.j256.ormlite/ormlite-core

/**
 * @see Dao#iterator()
 */
@Override
public CloseableIterator<T> iterator() {
  return dao.iterator();
}

代码示例来源：origin: j256/ormlite-core

/**
 * @see Dao#iterator()
 */
@Override
public CloseableIterator<T> iterator() {
  return dao.iterator();
}

代码示例来源：origin: com.j256.ormlite/ormlite-core

/**
 * @see Dao#iterator(int)
 */
@Override
public CloseableIterator<T> iterator(int resultFlags) {
  return dao.iterator(resultFlags);
}

代码示例来源：origin: j256/ormlite-core

/**
 * A short cut to {@link Dao#iterator(PreparedQuery)}.
 */
public CloseableIterator<T> iterator() throws SQLException {
  return dao.iterator(prepare());
}

代码示例来源：origin: j256/ormlite-core

/**
 * @see Dao#iterator(PreparedQuery)
 */
@Override
public CloseableIterator<T> iterator(PreparedQuery<T> preparedQuery) {
  try {
    return dao.iterator(preparedQuery);
  } catch (SQLException e) {
    logMessage(e, "iterator threw exception on: " + preparedQuery);
    throw new RuntimeException(e);
  }
}

代码示例来源：origin: j256/ormlite-core

/**
 * @see Dao#iterator(PreparedQuery, int)
 */
@Override
public CloseableIterator<T> iterator(PreparedQuery<T> preparedQuery, int resultFlags) {
  try {
    return dao.iterator(preparedQuery, resultFlags);
  } catch (SQLException e) {
    logMessage(e, "iterator threw exception on: " + preparedQuery);
    throw new RuntimeException(e);
  }
}

代码示例来源：origin: com.j256.ormlite/ormlite-core

/**
 * @see Dao#iterator(PreparedQuery)
 */
@Override
public CloseableIterator<T> iterator(PreparedQuery<T> preparedQuery) {
  try {
    return dao.iterator(preparedQuery);
  } catch (SQLException e) {
    logMessage(e, "iterator threw exception on: " + preparedQuery);
    throw new RuntimeException(e);
  }
}

代码示例来源：origin: com.j256.ormlite/ormlite-core

/**
 * A short cut to {@link Dao#iterator(PreparedQuery)}.
 */
public CloseableIterator<T> iterator() throws SQLException {
  return dao.iterator(prepare());
}

代码示例来源：origin: com.j256.ormlite/ormlite-core

/**
 * @see Dao#iterator(PreparedQuery, int)
 */
@Override
public CloseableIterator<T> iterator(PreparedQuery<T> preparedQuery, int resultFlags) {
  try {
    return dao.iterator(preparedQuery, resultFlags);
  } catch (SQLException e) {
    logMessage(e, "iterator threw exception on: " + preparedQuery);
    throw new RuntimeException(e);
  }
}

代码示例来源：origin: j256/ormlite-core

@Test(expected = RuntimeException.class)
public void testIteratorThrow() throws Exception {
  @SuppressWarnings("unchecked")
  Dao<Foo, String> dao = (Dao<Foo, String>) createMock(Dao.class);
  RuntimeExceptionDao<Foo, String> rtDao = new RuntimeExceptionDao<Foo, String>(dao);
  expect(dao.iterator(null)).andThrow(new SQLException("Testing catch"));
  replay(dao);
  rtDao.iterator(null);
  verify(dao);
}

代码示例来源：origin: com.j256.ormlite/ormlite-jdbc

@Test
public void testIteratorNoResults() throws Exception {
  Dao<Foo, Integer> fooDao = createDao(Foo.class, true);
  Iterator<Foo> iterator = fooDao.iterator();
  assertFalse(iterator.hasNext());
}

代码示例来源：origin: com.j256.ormlite/ormlite-jdbc

@Test
public void testRemoveAfterDone() throws Exception {
  Dao<Foo, Integer> fooDao = createDao(Foo.class, true);
  Iterator<Foo> iterator = fooDao.iterator();
  assertFalse(iterator.hasNext());
  try {
    iterator.remove();
    fail("expected exception");
  } catch (IllegalStateException e) {
    // expected
  }
}

代码示例来源：origin: j256/ormlite-core

@Test(expected = IllegalStateException.class)
public void testIteratorRemoveNoNext() throws Exception {
  Dao<Foo, Object> dao = createDao(Foo.class, true);
  CloseableIterator<Foo> iterator = dao.iterator();
  try {
    iterator.remove();
  } finally {
    iterator.close();
  }
}

代码示例来源：origin: com.j256.ormlite/ormlite-jdbc

@Test
public void testHasNextAfterDone() throws Exception {
  Dao<Foo, Integer> fooDao = createDao(Foo.class, true);
  CloseableIterator<Foo> iterator = fooDao.iterator();
  try {
    while (iterator.hasNext()) {
    }
    assertFalse(iterator.hasNext());
  } finally {
    iterator.close();
  }
}

代码示例来源：origin: j256/ormlite-core

@Test
public void testIteratorGetRawResults() throws Exception {
  Dao<Foo, Integer> dao = createDao(Foo.class, true);
  Foo foo1 = new Foo();
  assertEquals(1, dao.create(foo1));
  assertEquals(1, dao.queryForAll().size());
  @SuppressWarnings("unchecked")
  SelectIterator<Foo, String> iterator = (SelectIterator<Foo, String>) dao.iterator();
  DatabaseResults results = iterator.getRawResults();
  assertTrue(results.next());
  iterator.close();
}

代码示例来源：origin: j256/ormlite-core

@Test(expected = IllegalStateException.class)
public void testIteratorThrow() throws Exception {
  Dao<Foo, Integer> dao = createDao(Foo.class, true);
  Foo foo = new Foo();
  assertEquals(1, dao.create(foo));
  DatabaseConnection conn = connectionSource.getReadWriteConnection(FOO_TABLE_NAME);
  try {
    conn.close();
    dao.iterator();
  } finally {
    connectionSource.releaseConnection(conn);
  }
}

代码示例来源：origin: j256/ormlite-core

@Test(expected = SQLException.class)
public void testIteratorPreparedThrow() throws Exception {
  Dao<Foo, Integer> dao = createDao(Foo.class, true);
  Foo foo = new Foo();
  assertEquals(1, dao.create(foo));
  DatabaseConnection conn = connectionSource.getReadWriteConnection(FOO_TABLE_NAME);
  try {
    conn.close();
    dao.iterator(dao.queryBuilder().prepare());
  } finally {
    connectionSource.releaseConnection(conn);
  }
}

代码示例来源：origin: j256/ormlite-core

@Test
public void testIteratorLastClose() throws Exception {
  Dao<Foo, Integer> dao = createDao(Foo.class, true);
  Foo foo1 = new Foo();
  assertEquals(1, dao.create(foo1));
  CloseableIterator<Foo> iterator = dao.iterator();
  assertTrue(iterator.hasNext());
  Foo foo3 = iterator.next();
  assertEquals(foo1.id, foo3.id);
  assertFalse(iterator.hasNext());
  dao.closeLastIterator();
}

代码示例来源：origin: j256/ormlite-core

@Test
public void testMultipleHasNext() throws Exception {
  Dao<Foo, Integer> dao = createDao(Foo.class, true);
  Foo foo1 = new Foo();
  assertEquals(1, dao.create(foo1));
  CloseableIterator<Foo> iterator = dao.iterator();
  assertTrue(iterator.hasNext());
  assertTrue(iterator.hasNext());
  assertTrue(iterator.hasNext());
  iterator.moveToNext();
  assertFalse(iterator.hasNext());
}