public class ColGroupIO extends Object
| Constructor and Description |
|---|
ColGroupIO() |
| Modifier and Type | Method and Description |
|---|---|
static long |
getExactSizeOnDisk(List<AColGroup> colGroups)
Get the size on disk for the given list of column groups
|
static List<AColGroup> |
readGroups(DataInput in,
int nRows)
Read groups from a file.
|
static void |
writeGroups(DataOutput out,
List<AColGroup> colGroups)
Writes the ColGroups out to the DataOutput.
|
public static List<AColGroup> readGroups(DataInput in, int nRows) throws IOException
in - The Data input object to read from.nRows - The number of rows in the read groups.IOException - Throws IO Exception if the in refuses to read data.public static void writeGroups(DataOutput out, List<AColGroup> colGroups) throws IOException
out - The DataOutput the ColGroups are written tocolGroups - List of the ColGroups to write to file.IOException - Throws IO Exception if the out refuses to write.Copyright © 2021 The Apache Software Foundation. All rights reserved.