本文整理了Java中io.airlift.slice.Slice.getByte()方法的一些代码示例，展示了Slice.getByte()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。Slice.getByte()方法的具体详情如下：
包路径：io.airlift.slice.Slice
类名称：Slice
方法名：getByte

Slice.getByte介绍

[英]Gets a byte at the specified absolute index in this buffer.
[中]获取此缓冲区中指定绝对索引处的字节。

代码示例

代码示例来源：origin: prestodb/presto

@Override
protected boolean isEntryNull(int position)
{
  return valueIsNull != null && valueIsNull.getByte(position) != 0;
}

代码示例来源：origin: prestodb/presto

@ScalarOperator(CAST)
  @SqlType(StandardTypes.HYPER_LOG_LOG)
  public static Slice castToHyperLogLog(@SqlType(SetDigestType.NAME) Slice slice)
  {
    checkArgument(slice.getByte(0) == 1, "Legacy version of SetDigest cannot cast to HyperLogLog");
    int hllLength = slice.getInt(SIZE_OF_BYTE);
    return Slices.wrappedBuffer(slice.getBytes(SIZE_OF_BYTE + SIZE_OF_INT, hllLength));
  }
}

代码示例来源：origin: prestodb/presto

private static long readVIntInternal(Slice slice, int start, int length)
{
  long value = 0;
  for (int i = 1; i < length; i++) {
    value <<= 8;
    value |= (slice.getByte(start + i) & 0xFF);
  }
  return isNegativeVInt(slice.getByte(start)) ? ~value : value;
}

代码示例来源：origin: prestodb/presto

public static long readVInt(Slice slice, int start, int length)
{
  if (length == 1) {
    return slice.getByte(start);
  }
  return readVIntInternal(slice, start, length);
}

代码示例来源：origin: prestodb/presto

@SuppressWarnings("PointlessArithmeticExpression")
private static boolean isFalse(Slice slice, int start, int length)
{
  return (length == 5) &&
      (toUpperCase(slice.getByte(start + 0)) == 'F') &&
      (toUpperCase(slice.getByte(start + 1)) == 'A') &&
      (toUpperCase(slice.getByte(start + 2)) == 'L') &&
      (toUpperCase(slice.getByte(start + 3)) == 'S') &&
      (toUpperCase(slice.getByte(start + 4)) == 'E');
}

代码示例来源：origin: prestodb/presto

@Override
protected boolean isEntryNull(int position)
{
  return valueIsNull.getUnderlyingSlice().getByte(position) != 0;
}

代码示例来源：origin: prestodb/presto

@Override
  public void decodeValueInto(BlockBuilder builder, Slice slice, int offset, int length)
  {
    type.writeLong(builder, slice.getByte(offset));
  }
}

代码示例来源：origin: prestodb/presto

@SuppressWarnings("PointlessArithmeticExpression")
private static boolean isTrue(Slice slice, int start, int length)
{
  return (length == 4) &&
      (toUpperCase(slice.getByte(start + 0)) == 'T') &&
      (toUpperCase(slice.getByte(start + 1)) == 'R') &&
      (toUpperCase(slice.getByte(start + 2)) == 'U') &&
      (toUpperCase(slice.getByte(start + 3)) == 'E');
}

代码示例来源：origin: prestodb/presto

private static int hashBytes(int initialValue, Slice bytes)
{
  int result = initialValue;
  for (int i = 0; i < bytes.length(); i++) {
    result = result * 31 + bytes.getByte(i);
  }
  return result;
}

代码示例来源：origin: prestodb/presto

@Override
  public void decodeValueInto(BlockBuilder builder, Slice slice, int offset, int length)
  {
    type.writeBoolean(builder, slice.getByte(offset) != 0);
  }
}

代码示例来源：origin: prestodb/presto

public static boolean isNegativeVInt(Slice slice, int offset)
{
  return isNegativeVInt(slice.getByte(offset));
}

代码示例来源：origin: prestodb/presto

public static int decodeVIntSize(Slice slice, int offset)
{
  return decodeVIntSize(slice.getByte(offset));
}

代码示例来源：origin: prestodb/presto

private BigDecimal parseBigDecimal(Slice slice, int offset, int length)
  {
    checkArgument(length < buffer.length);
    for (int i = 0; i < length; i++) {
      buffer[i] = (char) slice.getByte(offset + i);
    }

    BigDecimal decimal = new BigDecimal(buffer, 0, length);

    checkState(decimal.scale() <= type.getScale(), "Read decimal value scale larger than column scale");
    decimal = decimal.setScale(type.getScale(), HALF_UP);
    checkState(decimal.precision() <= type.getPrecision(), "Read decimal precision larger than column precision");
    return decimal;
  }
}

代码示例来源：origin: prestodb/presto

@Override
public void writeSlice(BlockBuilder blockBuilder, Slice value, int offset, int length)
{
  if (length > 0 && value.getByte(offset + length - 1) == ' ') {
    throw new IllegalArgumentException("Slice representing Char should not have trailing spaces");
  }
  blockBuilder.writeBytes(value, offset, length).closeEntry();
}

代码示例来源：origin: prestodb/presto

private static int compareCharsShorterToLonger(Slice shorter, Slice longer)
{
  for (int i = 0; i < shorter.length(); ++i) {
    int result = compareUnsignedBytes(shorter.getByte(i), longer.getByte(i));
    if (result != 0) {
      return result;
    }
  }
  for (int i = shorter.length(); i < longer.length(); ++i) {
    int result = compareUnsignedBytes((byte) ' ', longer.getByte(i));
    if (result != 0) {
      return result;
    }
  }
  return 0;
}

代码示例来源：origin: prestodb/presto

public static long readVInt(Slice slice, int start)
{
  byte firstByte = slice.getByte(start);
  int length = decodeVIntSize(firstByte);
  if (length == 1) {
    return firstByte;
  }
  return readVIntInternal(slice, start, length);
}

代码示例来源：origin: prestodb/presto

@Override
public byte getByte(int position, int offset)
{
  checkReadablePosition(position);
  return getRawSlice().getByte(valueOffset(position) + offset);
}

代码示例来源：origin: prestodb/presto

@Override
public byte getByte(int position, int offset)
{
  checkReadablePosition(position);
  return getRawSlice(position).getByte(getPositionOffset(position) + offset);
}

代码示例来源：origin: prestodb/presto

@Override
public int getValueLength(Slice slice, int offset)
{
  int length = 4;
  if (hasNanosVInt(slice.getByte(offset))) {
    int nanosVintLength = decodeVIntSize(slice, offset + 4);
    length += nanosVintLength;
    // is there extra data for "seconds"
    if (isNegativeVInt(slice, offset + 4)) {
      length += decodeVIntSize(slice, offset + 4 + nanosVintLength);
    }
  }
  return length;
}

代码示例来源：origin: prestodb/presto

private static void writeValues(Slice[] expectedValues, BlockBuilder blockBuilder)
{
  for (Slice expectedValue : expectedValues) {
    if (expectedValue == null) {
      blockBuilder.appendNull();
    }
    else {
      blockBuilder.writeByte(expectedValue.getByte(0)).closeEntry();
    }
  }
}