Package com.arcadedb.engine

Class PaginatedComponent

java.lang.Object

com.arcadedb.engine.Component

com.arcadedb.engine.PaginatedComponent

Direct Known Subclasses:

Dictionary, LocalBucket, LSMTreeIndexAbstract

public abstract class PaginatedComponent
extends Component

Extends a FileComponent by supporting pages.

HEADER = [recordCount(int:4)] CONTENT-PAGES = [version(long:8),recordCountInPage(short:2),recordOffsetsInPage(512*ushort=2048)]

Author:

Luca Garulli ([email protected])

Field Summary

Fields

Modifier and Type	Field	Description
protected PaginatedComponentFile	file
protected AtomicInteger	pageCount
protected int	pageSize

Fields inherited from class com.arcadedb.engine.Component

componentName, database, fileId, filePath, version

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	PaginatedComponent(DatabaseInternal database, String name, String filePath, int id, ComponentFile.MODE mode, int pageSize, int version)
protected	PaginatedComponent(DatabaseInternal database, String name, String filePath, String ext, ComponentFile.MODE mode, int pageSize, int version)

Method Summary

Modifier and Type	Method	Description
void	close()
PaginatedComponentFile	getComponentFile()
File	getOSFile()
int	getPageSize()
int	getTotalPages()
void	setPageCount(int value)

Methods inherited from class com.arcadedb.engine.Component

getDatabase, getFileId, getMainComponent, getName, getVersion, onAfterCommit, onAfterLoad, onAfterSchemaLoad

Methods inherited from class java.lang.Object

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

Field Detail

file

protected final PaginatedComponentFile file

pageSize

protected final int pageSize

pageCount

protected final AtomicInteger pageCount

Constructor Detail

PaginatedComponent

protected PaginatedComponent(DatabaseInternal database,
                             String name,
                             String filePath,
                             String ext,
                             ComponentFile.MODE mode,
                             int pageSize,
                             int version)
                      throws IOException

Throws:

IOException

PaginatedComponent

protected PaginatedComponent(DatabaseInternal database,
                             String name,
                             String filePath,
                             int id,
                             ComponentFile.MODE mode,
                             int pageSize,
                             int version)
                      throws IOException

Throws:

IOException

Method Detail

getComponentFile

public PaginatedComponentFile getComponentFile()

getOSFile

public File getOSFile()

getPageSize

public int getPageSize()

setPageCount

public void setPageCount(int value)

close

public void close()

Specified by:

close in class Component

getTotalPages

public int getTotalPages()