ai.rapids.cudf

Class ContigSplitGroupByResult

java.lang.Object

ai.rapids.cudf.ContigSplitGroupByResult

All Implemented Interfaces:

AutoCloseable

public class ContigSplitGroupByResult
extends Object
implements AutoCloseable

Used to save groups and uniq key table for `Table.contiguousSplitGroupsAndGenUniqKeys` Each row in uniq key table is corresponding to a group Resource management note: This class is the owner of `groups` and `uniqKeysTable`(or uniqKeyColumns if table is not constructed) 1: Use `closeGroups` and `closeUniqKeyTable` to close the resources separately if you want to close eagerly. 2: Or auto close them by `AutoCloseable` Use `releaseGroups` to release the ownership of the `groups` to the caller, then the caller is responsible to close the `groups`

Constructor Summary

Constructors

Constructor and Description
ContigSplitGroupByResult()

Method Summary

Modifier and Type	Method and Description
void	close()
void	closeGroups() Close the split group tables
void	closeUniqKeyTable() Close the key table or key columns
ContiguousTable[]	getGroups() Get the split group tables.
Table	getUniqKeyTable() Get the key table, each row in the key table is corresponding to a group.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ContigSplitGroupByResult

public ContigSplitGroupByResult()

Method Detail

getUniqKeyTable

public Table getUniqKeyTable()

Get the key table, each row in the key table is corresponding to a group. Note: Close the key table by `closeUniqKeyTable`

Returns:

the key table, it could be null if invoking native method `Table.contiguousSplitGroups` with `genUniqKeys` as false

closeUniqKeyTable

public void closeUniqKeyTable()

Close the key table or key columns

getGroups

public ContiguousTable[] getGroups()

Get the split group tables. Note: Close the group tables by `closeGroups`

Returns:

the split group tables

closeGroups

public void closeGroups()

Close the split group tables

close

public void close()

Specified by:

close in interface AutoCloseable