本文整理了Java中java.sql.ResultSet.isFirst方法的一些代码示例，展示了ResultSet.isFirst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。ResultSet.isFirst方法的具体详情如下：
包路径：java.sql.ResultSet
类名称：ResultSet
方法名：isFirst

ResultSet.isFirst介绍

[英]Gets if the cursor is on the first row of the ResultSet.
[中]获取光标是否位于结果集的第一行。

代码示例

代码示例来源：origin: querydsl/querydsl

@Override
public boolean isFirst() throws SQLException {
  return rs.isFirst();
}

代码示例来源：origin: codingapi/tx-lcn

@Override
public boolean isFirst() throws SQLException {
 return delegate.isFirst();
}

代码示例来源：origin: spring-projects/spring-framework

/**
 * @see java.sql.ResultSet#isFirst()
 */
@Override
public boolean isFirst() throws InvalidResultSetAccessException {
  try {
    return this.resultSet.isFirst();
  }
  catch (SQLException se) {
    throw new InvalidResultSetAccessException(se);
  }
}

代码示例来源：origin: alibaba/druid

@Override
public boolean isFirst() throws SQLException {
  try {
    return rs.isFirst();
  } catch (Throwable t) {
    throw checkException(t);
  }
}

代码示例来源：origin: jphp-group/jphp

@Signature
public boolean isFirst() throws SQLException {
  return resultSet.isFirst();
}

代码示例来源：origin: alibaba/druid

@Override
public boolean resultSet_isFirst(ResultSetProxy rs) throws SQLException {
  if (this.pos < filterSize) {
    return nextFilter()
        .resultSet_isFirst(this, rs);
  }
  return rs.getResultSetRaw()
      .isFirst();
}

代码示例来源：origin: hibernate/hibernate-orm

@Override
public boolean isFirst() {
  try {
    return getResultSet().isFirst();
  }
  catch (SQLException sqle) {
    throw convert( sqle, "exception calling isFirst()" );
  }
}

代码示例来源：origin: apache/ignite

/**
 * @throws Exception If failed.
 */
@Test
public void testNavigation() throws Exception {
  ResultSet rs = stmt.executeQuery("select * from TestObject where id > 0");
  assert rs.isBeforeFirst();
  assert !rs.isAfterLast();
  assert !rs.isFirst();
  assert !rs.isLast();
  assert rs.getRow() == 0;
  assert rs.next();
  assert !rs.isBeforeFirst();
  assert !rs.isAfterLast();
  assert rs.isFirst();
  assert !rs.isLast();
  assert rs.getRow() == 1;
  assert rs.next();
  assert !rs.isBeforeFirst();
  assert !rs.isAfterLast();
  assert !rs.isFirst();
  assert rs.isLast();
  assert rs.getRow() == 2;
  assert !rs.next();
  assert !rs.isBeforeFirst();
  assert rs.isAfterLast();
  assert !rs.isFirst();
  assert !rs.isLast();
  assert rs.getRow() == 0;
}

代码示例来源：origin: apache/ignite

assert !rs.isFirst();
assert !rs.isLast();
assert rs.getRow() == 0;
assert rs.isFirst();
assert !rs.isLast();
assert rs.getRow() == 1;
assert !rs.isFirst();
assert rs.isLast();
assert rs.getRow() == 2;
assert !rs.isFirst();
assert !rs.isLast();
assert rs.getRow() == 0;

代码示例来源：origin: p6spy/p6spy

@Override
public boolean isFirst() throws SQLException {
 return delegate.isFirst();
}

代码示例来源：origin: Meituan-Dianping/Zebra

@Override
public boolean isFirst() throws SQLException {
  return innerResultSet.isFirst();
}

代码示例来源：origin: apache/phoenix

@Override
public boolean isFirst() throws SQLException {
  return rs.isFirst();
}

代码示例来源：origin: Meituan-Dianping/Zebra

@Override
public boolean isFirst() throws SQLException {
  return innerResultSet.isFirst();
}

代码示例来源：origin: apache/ignite

assertFalse(rs.isFirst());
assertFalse(rs.isLast());
assertEquals(0, rs.getRow());
assertTrue(rs.isFirst());
assertFalse(rs.isLast());
assertEquals(1, rs.getRow());
assertFalse(rs.isFirst());
assertFalse(rs.isLast());
assertEquals(2, rs.getRow());
assertFalse(rs.isFirst());
assertTrue(rs.isLast());
assertEquals(3, rs.getRow());
assertFalse(rs.isFirst());
assertFalse(rs.isLast());
assertEquals(0, rs.getRow());

代码示例来源：origin: hibernate/hibernate-orm

if ( resultSet.isFirst() ) {

代码示例来源：origin: com.alibaba/druid

@Override
public boolean isFirst() throws SQLException {
  try {
    return rs.isFirst();
  } catch (Throwable t) {
    throw checkException(t);
  }
}

代码示例来源：origin: com.alibaba/druid

@Override
public boolean resultSet_isFirst(ResultSetProxy rs) throws SQLException {
  if (this.pos < filterSize) {
    return nextFilter()
        .resultSet_isFirst(this, rs);
  }
  return rs.getResultSetRaw()
      .isFirst();
}

代码示例来源：origin: commons-dbutils/commons-dbutils

/**
 * @return
 * @throws SQLException
 * @see java.sql.ResultSet#isFirst()
 */
protected final boolean isFirst() throws SQLException {
  return rs.isFirst();
}

代码示例来源：origin: apache/activemq-artemis

@Override
public boolean isFirst() throws SQLException {
 boolean x = resultSet.isFirst();
 logger.logf(level, "%s.isFirst() = %s", resultSetID, x);
 return x;
}

代码示例来源：origin: org.apache.commons/commons-dbcp2

@Override
public boolean isFirst() throws SQLException {
  try {
    return resultSet.isFirst();
  } catch (final SQLException e) {
    handleException(e);
    return false;
  }
}