import org.apache.cassandra.io.compress.CompressedRandomAccessReader; //导入依赖的package包/类
public RandomAccessReader createReader()
{
    return CompressedRandomAccessReader.open(path, metadata, null);
}
 

import org.apache.cassandra.io.compress.CompressedRandomAccessReader; //导入依赖的package包/类
protected RandomAccessReader createPooledReader()
{
    return CompressedRandomAccessReader.open(path, metadata, this);
}
 

import org.apache.cassandra.io.compress.CompressedRandomAccessReader; //导入依赖的package包/类
public RandomAccessReader createReader()
{
    return CompressedRandomAccessReader.open(path, metadata);
}
 

import org.apache.cassandra.io.compress.CompressedRandomAccessReader; //导入依赖的package包/类
public RandomAccessReader openDataReader()
{
    return compression
           ? CompressedRandomAccessReader.open(getFilename(), getCompressionMetadata())
           : RandomAccessReader.open(new File(getFilename()));
}
 

import org.apache.cassandra.io.compress.CompressedRandomAccessReader; //导入依赖的package包/类
protected RandomAccessReader createReader(String path)
{
    return CompressedRandomAccessReader.open(path, metadata, this);
}
 

import org.apache.cassandra.io.compress.CompressedRandomAccessReader; //导入依赖的package包/类
public FileDataInput getSegment(long position)
{
    RandomAccessReader reader = CompressedRandomAccessReader.open(path, metadata, null);
    reader.seek(position);
    return reader;
}
 

import org.apache.cassandra.io.compress.CompressedRandomAccessReader; //导入依赖的package包/类
public RandomAccessReader createReader()
{
    return new CompressedRandomAccessReader.Builder(this).build();
}
 

import org.apache.cassandra.io.compress.CompressedRandomAccessReader; //导入依赖的package包/类
public RandomAccessReader openDataReader(boolean skipIOCache)
{
    return compression
           ? CompressedRandomAccessReader.open(getFilename(), getCompressionMetadata(), skipIOCache)
           : RandomAccessReader.open(new File(getFilename()), skipIOCache);
}