import org.apache.cassandra.io.util.MemoryInputStream; //导入依赖的package包/类
private V deserialize(RefCountedMemory mem)
{
    try
    {
        return serializer.deserialize(new EncodedDataInputStream(new MemoryInputStream(mem)));
    }
    catch (IOException e)
    {
        logger.debug("Cannot fetch in memory data, we will fallback to read from disk ", e);
        return null;
    }
}
 

import org.apache.cassandra.io.util.MemoryInputStream; //导入依赖的package包/类
private V deserialize(RefCountedMemory mem)
{
    try
    {
        return serializer.deserialize(new EncodedDataInputStream(new MemoryInputStream(mem)));
    }
    catch (IOException e)
    {
        logger.debug("Cannot fetch in memory data, we will failback to read from disk ", e);
        return null;
    }
}
 

import org.apache.cassandra.io.util.MemoryInputStream; //导入依赖的package包/类
public void serialize(IndexSummary t, DataOutputStream out) throws IOException
{
    out.writeInt(t.indexInterval);
    out.writeInt(t.summary_size);
    out.writeLong(t.bytes.size());
    FBUtilities.copy(new MemoryInputStream(t.bytes), out, t.bytes.size());
}
 

import org.apache.cassandra.io.util.MemoryInputStream; //导入依赖的package包/类
private V deserialize(RefCountedMemory mem)
{
    try
    {
        return serializer.deserialize(new MemoryInputStream(mem));
    }
    catch (IOException e)
    {
        logger.trace("Cannot fetch in memory data, we will fallback to read from disk ", e);
        return null;
    }
}
 

import org.apache.cassandra.io.util.MemoryInputStream; //导入依赖的package包/类
public void serialize(IndexSummary t, DataOutputStream out, boolean withSamplingLevel) throws IOException
{
    out.writeInt(t.indexInterval);
    out.writeInt(t.summarySize);
    out.writeLong(t.bytes.size());
    if (withSamplingLevel)
    {
        out.writeInt(t.samplingLevel);
        out.writeInt(t.sizeAtFullSampling);
    }
    FBUtilities.copy(new MemoryInputStream(t.bytes), out, t.bytes.size());
}
 

import org.apache.cassandra.io.util.MemoryInputStream; //导入依赖的package包/类
private V deserialize(FreeableMemory mem)
{
    try
    {
        return serializer.deserialize(new MemoryInputStream(mem));
    }
    catch (IOException e)
    {
        logger.debug("Cannot fetch in memory data, we will failback to read from disk ", e);
        return null;
    }
}