import org.apache.cassandra.db.Slices; //导入依赖的package包/类
private static DataRange dataRange(CFMetaData metadata, PartitionPosition start, boolean startInclusive, PartitionPosition end, boolean endInclusive)
{
    Slices.Builder sb = new Slices.Builder(metadata.comparator);
    ClusteringIndexSliceFilter filter = new ClusteringIndexSliceFilter(sb.build(), false);

    return new DataRange(AbstractBounds.bounds(start, startInclusive, end, endInclusive), filter);
}
 

import org.apache.cassandra.db.Slices; //导入依赖的package包/类
/**
 * Returns an UnfilteredRowIterator over the rows/RT contained by this partition
 * selected by the provided slices.
 */
public UnfilteredRowIterator unfilteredIterator(ColumnFilter columns, Slices slices, boolean reversed);
 

import org.apache.cassandra.db.Slices; //导入依赖的package包/类
public Slices getSlices(CFMetaData metadata); 

import org.apache.cassandra.db.Slices; //导入依赖的package包/类
public abstract UnfilteredRowIterator iterator(DecoratedKey key, Slices slices, ColumnFilter selectedColumns, boolean reversed, boolean isForThrift);