本文整理了Java中com.facebook.presto.spi.block.Block.hash()方法的一些代码示例，展示了Block.hash()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。Block.hash()方法的具体详情如下：
包路径：com.facebook.presto.spi.block.Block
类名称：Block
方法名：hash

Block.hash介绍

[英]Calculates the hash code the byte sequences at offset in the value at position. This method must be implemented if @{code getSlice} is implemented.
[中]计算位置处的值中偏移量处的字节序列的哈希代码。如果实现了@{code getSlice}，则必须实现此方法。

代码示例

代码示例来源：origin: prestodb/presto

@Override
public long hash(int position, int offset, int length)
{
  return block.hash(position, offset, length);
}

代码示例来源：origin: prestodb/presto

@Override
public long hash(Block block, int position)
{
  return block.hash(position, 0, block.getSliceLength(position));
}

代码示例来源：origin: prestodb/presto

@Override
public long hash(int position, int offset, int length)
{
  assureLoaded();
  return block.hash(position, offset, length);
}

代码示例来源：origin: prestodb/presto

@Override
public long hash(int position, int offset, int length)
{
  return dictionary.hash(getId(position), offset, length);
}

代码示例来源：origin: prestodb/presto

@Override
public long hash(Block block, int position)
{
  return block.hash(position, 0, block.getSliceLength(position));
}

代码示例来源：origin: prestodb/presto

@Override
public long hash(Block block, int position)
{
  return block.hash(position, 0, block.getSliceLength(position));
}

代码示例来源：origin: prestodb/presto

@Override
public long hash(Block block, int position)
{
  return block.hash(position, 0, block.getSliceLength(position));
}

代码示例来源：origin: prestodb/presto

@Override
public long hash(Block block, int position)
{
  return block.hash(position, 0, block.getSliceLength(position));
}

代码示例来源：origin: prestodb/presto

@Override
public long hash(int position, int offset, int length)
{
  checkReadablePosition(position);
  return value.hash(0, offset, length);
}

代码示例来源：origin: prestodb/presto

@Override
public long hash(Block block, int position)
{
  return block.hash(position, 0, getFixedSize());
}

代码示例来源：origin: prestodb/presto

@Override
public long hash(int position, int offset, int length)
{
  position = getAbsolutePosition(position);
  if (position % 2 == 0) {
    return getRawKeyBlock().hash(position / 2, offset, length);
  }
  else {
    return getRawValueBlock().hash(position / 2, offset, length);
  }
}

代码示例来源：origin: prestodb/presto

@Override
public long hash(int position, int offset, int length)
{
  checkFieldIndex(position);
  return getRawFieldBlock(position).hash(rowIndex, offset, length);
}

代码示例来源：origin: prestodb/presto

@Override
public long hash(int position, int offset, int length)
{
  checkReadablePosition(position);
  return getBlock().hash(position + start, offset, length);
}

代码示例来源：origin: prestodb/presto

@SuppressWarnings("unused")
  public static long blockVarcharHashCode(Block block, int position)
  {
    return block.hash(position, 0, block.getSliceLength(position));
  }
}

代码示例来源：origin: prestodb/presto

/**
 * Get slot position of element at {@code position} of {@code block}
 */
private long getHashPositionOfElement(Block block, int position)
{
  checkArgument(!block.isNull(position), "position is null");
  int length = block.getSliceLength(position);
  long hashPosition = getMaskedHash(block.hash(position, 0, length));
  while (true) {
    int blockPosition = blockPositionByHash.get(hashPosition);
    if (blockPosition == EMPTY_SLOT) {
      // Doesn't have this element
      return hashPosition;
    }
    else if (elementBlock.getSliceLength(blockPosition) == length && block.equals(position, 0, elementBlock, blockPosition, 0, length)) {
      // Already has this element
      return hashPosition;
    }
    hashPosition = getMaskedHash(hashPosition + 1);
  }
}

代码示例来源：origin: uk.co.nichesolutions.presto/presto-main

@Override
public int hash(int position, int offset, int length)
{
  return block.hash(position, offset, length);
}

代码示例来源：origin: com.facebook.presto/presto-spi

@Override
public long hash(Block block, int position)
{
  return block.hash(position, 0, block.getSliceLength(position));
}

代码示例来源：origin: com.facebook.presto/presto-spi

@Override
public long hash(int position, int offset, int length)
{
  assureLoaded();
  return block.hash(position, offset, length);
}

代码示例来源：origin: com.facebook.presto/presto-spi

@Override
public long hash(int position, int offset, int length)
{
  checkFieldIndex(position);
  return getRawFieldBlock(position).hash(rowIndex, offset, length);
}

代码示例来源：origin: com.facebook.presto/presto-spi

@Override
public long hash(int position, int offset, int length)
{
  checkReadablePosition(position);
  return getBlock().hash(position + start, offset, length);
}