Package org.apache.hugegraph.computer.core.store.file.hgkvfile

Class HgkvDirImpl

java.lang.Object

org.apache.hugegraph.computer.core.store.file.hgkvfile.AbstractHgkvFile

org.apache.hugegraph.computer.core.store.file.hgkvfile.HgkvDirImpl

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, HgkvDir, HgkvFile

public class HgkvDirImpl
extends AbstractHgkvFile
implements HgkvDir

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	FILE_EXTEND_NAME
static java.lang.String	FILE_NAME_PREFIX

Fields inherited from class org.apache.hugegraph.computer.core.store.file.hgkvfile.AbstractHgkvFile

dataBlockSize, indexBlockSize, magic, MAGIC, MAJOR_VERSION, max, min, MINOR_VERSION, numEntries, numSubEntries, path, version

Method Summary

Modifier and Type	Method	Description
void	close()
static HgkvDir	create(java.lang.String path)
byte[]	max()	Max key in file.
byte[]	min()	Min key in file.
static HgkvDir	open(java.lang.String path)
BufferedFileOutput	output()	Output of hgkv file.
java.util.List<HgkvFile>	segments()	Return the segments in HgkvDir.

Methods inherited from class org.apache.hugegraph.computer.core.store.file.hgkvfile.AbstractHgkvFile

magic, numEntries, numSubEntries, path, version

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hugegraph.computer.core.store.file.hgkvfile.HgkvFile

magic, numEntries, numSubEntries, path, version

Field Detail

FILE_NAME_PREFIX

public static final java.lang.String FILE_NAME_PREFIX

See Also:

Constant Field Values

FILE_EXTEND_NAME

public static final java.lang.String FILE_EXTEND_NAME

See Also:

Constant Field Values

Method Detail

create

public static HgkvDir create(java.lang.String path)
                      throws java.io.IOException

Throws:

java.io.IOException

open

public static HgkvDir open(java.lang.String path)
                    throws java.io.IOException

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable

Throws:

java.io.IOException

max

public byte[] max()

Description copied from interface: HgkvFile

Max key in file.

Specified by:

max in interface HgkvFile

Overrides:

max in class AbstractHgkvFile

min

public byte[] min()

Description copied from interface: HgkvFile

Min key in file.

Specified by:

min in interface HgkvFile

Overrides:

min in class AbstractHgkvFile

segments

public java.util.List<HgkvFile> segments()

Description copied from interface: HgkvDir

Return the segments in HgkvDir. A HgkvDir is a complete file, HgkvDir consists of multiple HgkvFile.

Specified by:

segments in interface HgkvDir

output

public BufferedFileOutput output()
                          throws java.io.FileNotFoundException

Description copied from interface: HgkvFile

Output of hgkv file.

Specified by:

output in interface HgkvFile

Throws:

java.io.FileNotFoundException