本文整理了Java中com.j256.ormlite.dao.Dao.countOf()方法的一些代码示例，展示了Dao.countOf()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.countOf()方法的具体详情如下：
包路径：com.j256.ormlite.dao.Dao
类名称：Dao
方法名：countOf

Dao.countOf介绍

[英]Returns the number of rows in the table associated with the data class. Depending on the size of the table and the database type, this may be expensive and take a while.
[中]返回表中与数据类关联的行数。根据表的大小和数据库类型，这可能会很昂贵，并且需要一段时间。

代码示例

代码示例来源：origin: j256/ormlite-core

/**
 * @see Dao#countOf()
 */
@Override
public long countOf() {
  try {
    return dao.countOf();
  } catch (SQLException e) {
    logMessage(e, "countOf threw exception");
    throw new RuntimeException(e);
  }
}

代码示例来源：origin: j256/ormlite-core

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

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

/**
 * @see Dao#countOf()
 */
@Override
public long countOf() {
  try {
    return dao.countOf();
  } catch (SQLException e) {
    logMessage(e, "countOf threw exception");
    throw new RuntimeException(e);
  }
}

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

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

代码示例来源：origin: QuickBlox/q-municate-android

public long getAllCount() {
  long numRows = 0;
  try {
    numRows = dao.countOf();
  } catch (SQLException e) {
    ErrorUtils.logError(e);
  }
  return numRows;
}

代码示例来源：origin: org.mycontroller.standalone/mycontroller-core

public Long countOf() {
  try {
    return this.getDao().countOf();
  } catch (SQLException ex) {
    _logger.error("unable to get count,", ex);
  }
  return null;
}

代码示例来源：origin: mycontroller-org/mycontroller

public Long countOf() {
  try {
    return this.getDao().countOf();
  } catch (SQLException ex) {
    _logger.error("unable to get count,", ex);
    throw new McDatabaseException(ex);
  }
}

代码示例来源：origin: j256/ormlite-core

/**
 * Returns the count of the number of rows in the table. This uses {@link #setCountOf(boolean)} to true and then
 * calls {@link Dao#countOf(PreparedQuery)}. It restores the previous count-of value before returning.
 */
public long countOf() throws SQLException {
  String countOfQuerySave = this.countOfQuery;
  try {
    setCountOf(true);
    return dao.countOf(prepare());
  } finally {
    setCountOf(countOfQuerySave);
  }
}

代码示例来源：origin: j256/ormlite-core

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

代码示例来源：origin: j256/ormlite-core

@Test(expected = RuntimeException.class)
public void testCountOfThrow() 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.countOf()).andThrow(new SQLException("Testing catch"));
  replay(dao);
  rtDao.countOf();
  verify(dao);
}

代码示例来源：origin: j256/ormlite-core

@Test
public void testClearTable() throws Exception {
  Dao<LocalFoo, Integer> fooDao = createDao(LocalFoo.class, true);
  assertEquals(0, fooDao.countOf());
  LocalFoo foo = new LocalFoo();
  assertEquals(1, fooDao.create(foo));
  assertEquals(1, fooDao.countOf());
  TableUtils.clearTable(connectionSource, LocalFoo.class);
  assertEquals(0, fooDao.countOf());
}

代码示例来源：origin: j256/ormlite-core

@Test
public void testCountOf() throws Exception {
  Dao<Foo, Integer> dao = createDao(Foo.class, true);
  assertEquals(0, dao.countOf());
  Foo foo = new Foo();
  assertEquals(1, dao.create(foo));
  assertEquals(1, dao.countOf());
  assertEquals(1, dao.create(foo));
  assertEquals(2, dao.countOf());
}

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

@Test
public void testCountOf() throws Exception {
  Dao<Foo, String> dao = createDao(Foo.class, true);
  assertEquals(0, dao.countOf());
  Foo foo = new Foo();
  foo.id = 1;
  assertEquals(1, dao.create(foo));
  assertEquals(1, dao.countOf());
  foo.id = 2;
  assertEquals(1, dao.create(foo));
  assertEquals(2, dao.countOf());
}

代码示例来源：origin: j256/ormlite-core

@Test(expected = IllegalArgumentException.class)
public void testCountOfPreparedNoCountOf() throws Exception {
  Dao<Foo, Integer> dao = createDao(Foo.class, true);
  QueryBuilder<Foo, Integer> qb = dao.queryBuilder();
  dao.countOf(qb.prepare());
}

代码示例来源：origin: j256/ormlite-core

@Test(expected = SQLException.class)
public void testQueryForFieldValuesQuotes() throws Exception {
  Dao<Foo, Integer> dao = createDao(Foo.class, true);
  assertEquals(0, dao.countOf());
  Foo foo1 = new Foo();
  foo1.val = 1231231;
  assertEquals(1, dao.create(foo1));
  Map<String, Object> fieldValues = new HashMap<String, Object>();
  fieldValues.put(Foo.ID_COLUMN_NAME, "this id has a quote '");
  dao.queryForFieldValues(fieldValues);
}

代码示例来源：origin: j256/ormlite-core

@Test
public void testQueryForFieldValuesEmpty() throws Exception {
  Dao<Foo, Integer> dao = createDao(Foo.class, true);
  assertEquals(0, dao.countOf());
  Foo foo = new Foo();
  foo.val = 1231231;
  assertEquals(1, dao.create(foo));
  Map<String, Object> fieldValues = new HashMap<String, Object>();
  List<Foo> results = dao.queryForFieldValues(fieldValues);
  assertEquals(0, results.size());
}

代码示例来源：origin: j256/ormlite-core

@Test
public void testCountOfPrepared() throws Exception {
  Dao<Foo, Integer> dao = createDao(Foo.class, true);
  assertEquals(0, dao.countOf());
  Foo foo = new Foo();
  assertEquals(1, dao.create(foo));
  assertEquals(1, dao.create(foo));
  assertEquals(2, dao.countOf());
  QueryBuilder<Foo, Integer> qb = dao.queryBuilder();
  qb.setCountOf(true).where().eq(Foo.ID_COLUMN_NAME, foo.id);
  assertEquals(1, dao.countOf(qb.prepare()));
}

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

@Test
public void testCountOfPreparedNoCountOf() throws Exception {
  Dao<Foo, String> dao = createDao(Foo.class, true);
  QueryBuilder<Foo, String> qb = dao.queryBuilder();
  try {
    dao.countOf(qb.prepare());
    fail("Should have thrown");
  } catch (IllegalArgumentException e) {
    // expected
  }
}

代码示例来源：origin: j256/ormlite-core

@Test
public void testQueryForMatchingNoFields() throws Exception {
  Dao<Foo, Integer> dao = createDao(Foo.class, true);
  assertEquals(0, dao.countOf());
  Foo foo = new Foo();
  foo.val = 1231231;
  assertEquals(1, dao.create(foo));
  Foo match = new Foo();
  List<Foo> results = dao.queryForMatching(match);
  assertEquals(0, results.size());
}

代码示例来源：origin: j256/ormlite-core

@Test(expected = SQLException.class)
public void testQueryForMatchingQuotes() throws Exception {
  Dao<Foo, Integer> dao = createDao(Foo.class, true);
  assertEquals(0, dao.countOf());
  Foo foo = new Foo();
  foo.val = 1231231;
  assertEquals(1, dao.create(foo));
  Foo match = new Foo();
  match.stringField = "this id has a quote '";
  dao.queryForMatching(match);
}