org.apache.ignite.internal.processors.query.h2.disk

Class ExternalResultData<T>

java.lang.Object

org.apache.ignite.internal.processors.query.h2.disk.ExternalResultData<T>

All Implemented Interfaces:

AutoCloseable

public class ExternalResultData<T>
extends Object
implements AutoCloseable

Spill file IO.

Constructor Summary

Constructors

Constructor and Description
ExternalResultData(IgniteLogger log, String workDir, TrackableFileIoFactory fileIOFactory, UUID locNodeId, boolean useHashIdx, long initSize, Class<T> cls, org.gridgain.internal.h2.value.CompareMode cmp, org.gridgain.internal.h2.store.DataHandler hnd, org.apache.ignite.internal.processors.query.h2.H2MemoryTracker tracker)

Method Summary

Modifier and Type	Method and Description
void	close()
boolean	contains(org.gridgain.internal.h2.value.ValueRow row) Checks if row is contained by the file.
Map.Entry<org.gridgain.internal.h2.value.ValueRow,T[]>	get(org.gridgain.internal.h2.value.ValueRow key) Reads key from the file by its key.
boolean	remove(org.gridgain.internal.h2.value.ValueRow row) Marks row as removed.
void	store(Collection<Map.Entry<org.gridgain.internal.h2.value.ValueRow,T[]>> rows) Stores rows into the file.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExternalResultData

public ExternalResultData(IgniteLogger log,
                          String workDir,
                          TrackableFileIoFactory fileIOFactory,
                          UUID locNodeId,
                          boolean useHashIdx,
                          long initSize,
                          Class<T> cls,
                          org.gridgain.internal.h2.value.CompareMode cmp,
                          org.gridgain.internal.h2.store.DataHandler hnd,
                          org.apache.ignite.internal.processors.query.h2.H2MemoryTracker tracker)

Parameters:

log - Logger.

workDir - Work directory.

fileIOFactory - File io factory.

locNodeId - Node id.

useHashIdx - Whether to use hash index.

initSize - Initial size.

cls - Class of stored data.

cmp - Comparator for rows.

hnd - Data handler.

tracker - Memory tracker.

Method Detail

store

public void store(Collection<Map.Entry<org.gridgain.internal.h2.value.ValueRow,T[]>> rows)

Stores rows into the file.

Parameters:

rows - Rows to store.

remove

public boolean remove(org.gridgain.internal.h2.value.ValueRow row)

Marks row as removed.

Parameters:

row - Row.

Returns:

True if row was actually removed.

contains

public boolean contains(org.gridgain.internal.h2.value.ValueRow row)

Checks if row is contained by the file.

Parameters:

row - Row.

Returns:

True if file contains the row.

get

public Map.Entry<org.gridgain.internal.h2.value.ValueRow,T[]> get(org.gridgain.internal.h2.value.ValueRow key)

Reads key from the file by its key.

Parameters:

key - Row key.

Returns:

Row.

close

public void close()

Specified by:

close in interface AutoCloseable