Package org.apache.accumulo.core.metadata

Class TabletFile

java.lang.Object

org.apache.accumulo.core.metadata.TabletFile

All Implemented Interfaces:

Comparable<TabletFile>

Direct Known Subclasses:

ScanServerRefTabletFile, StoredTabletFile

public class TabletFile
extends Object
implements Comparable<TabletFile>

Object representing a tablet file that may exist in the metadata table. This class is used for reading and opening tablet files. It is also used when inserting new tablet files. When a new file is inserted, the insert() method is called and returns a StoredTabletFile For situations where a tablet file needs to be updated or deleted in the metadata, a StoredTabletFile is required.

As of 2.1, Tablet file paths should now be only absolute URIs with the removal of relative paths in Upgrader9to10.upgradeRelativePaths()

Field Summary

Fields

Modifier and Type	Field	Description
protected org.apache.hadoop.fs.Path	metaPath

Constructor Summary

Constructors

Constructor	Description
TabletFile(org.apache.hadoop.fs.Path metaPath)	Construct new tablet file using a Path.

Method Summary

Modifier and Type	Method	Description
int	compareTo(TabletFile o)
boolean	equals(Object obj)
String	getFileName()
String	getMetaInsert()	Return a string for inserting a new tablet file.
org.apache.hadoop.io.Text	getMetaInsertText()	Return a new Text object of getMetaInsert()
org.apache.hadoop.fs.Path	getPath()
String	getPathStr()	Return a string for opening and reading the tablet file.
TableId	getTableId()
String	getTabletDir()
String	getVolume()
int	hashCode()
StoredTabletFile	insert()	New file was written to metadata so return a StoredTabletFile
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

metaPath

protected final org.apache.hadoop.fs.Path metaPath

Constructor Detail

TabletFile

public TabletFile(org.apache.hadoop.fs.Path metaPath)

Construct new tablet file using a Path. Used in the case where we had to use Path object to qualify an absolute path or create a new file.

Method Detail

getVolume

public String getVolume()

getTableId

public TableId getTableId()

getTabletDir

public String getTabletDir()

getFileName

public String getFileName()

getPathStr

public String getPathStr()

Return a string for opening and reading the tablet file. Doesn't have to be exact string in metadata.

getMetaInsert

public String getMetaInsert()

Return a string for inserting a new tablet file.

getMetaInsertText

public org.apache.hadoop.io.Text getMetaInsertText()

Return a new Text object of getMetaInsert()

insert

public StoredTabletFile insert()

New file was written to metadata so return a StoredTabletFile

getPath

public org.apache.hadoop.fs.Path getPath()

compareTo

public int compareTo(TabletFile o)

Specified by:

compareTo in interface Comparable<TabletFile>

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object