How to use

getDouble

method

in

org.apache.mina.codec.IoBuffer

/**
 * @see ByteBuffer#getDouble(int)
 */
public double getDouble(int index) {
  return getDouble(getPointerByPosition(index));
}

@Test
public void testDouble() {
  for (ByteOrder bo : new ByteOrder[] { ByteOrder.BIG_ENDIAN, ByteOrder.LITTLE_ENDIAN }) {
    ByteBuffer bb = (ByteBuffer) ByteBuffer.allocate(9).order(bo).putDouble(Math.PI).rewind();
    IoBuffer ioBuffer = IoBuffer.wrap(bb).order(bo);
    assertEquals(9, ioBuffer.capacity());
    ioBuffer.extend(7);
    ioBuffer.position(8);
    assertEquals(16, ioBuffer.capacity());
    ioBuffer.putDouble(-Math.E);
    ioBuffer.rewind();
    assertEquals(Math.PI, ioBuffer.getDouble(), 1E-10);
    assertEquals(-Math.E, ioBuffer.getDouble(), 1E-10);
    ioBuffer.rewind();
    ioBuffer.putDouble(4, 12.34);
    assertEquals(12.34, ioBuffer.getDouble(4), 1E-10);
  }
}