Package org.apache.bookkeeper.meta

Class LedgerLayout

java.lang.Object

org.apache.bookkeeper.meta.LedgerLayout

public class LedgerLayout
extends java.lang.Object

This class encapsulates ledger layout information that is persistently stored in registration service. It provides parsing and serialization methods of such information.

Field Summary

Fields

Modifier and Type	Field	Description
static int	LAYOUT_FORMAT_VERSION
static int	LAYOUT_MIN_COMPAT_VERSION

Constructor Summary

Constructors

Constructor	Description
LedgerLayout(java.lang.String managerFactoryCls, int managerVersion)	Ledger Layout Constructor.
LedgerLayout(java.lang.String managerFactoryCls, int managerVersion, int layoutVersion)

Method Summary

Modifier and Type	Method	Description
protected boolean	canEqual(java.lang.Object other)
boolean	equals(java.lang.Object o)
int	getLayoutFormatVersion()
java.lang.String	getManagerFactoryClass()
int	getManagerVersion()
int	hashCode()
static LedgerLayout	parseLayout(byte[] bytes)	Parses a given byte array and transforms into a LedgerLayout object.
byte[]	serialize()	Generates a byte array based on the LedgerLayout object.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

LAYOUT_MIN_COMPAT_VERSION

public static final int LAYOUT_MIN_COMPAT_VERSION

See Also:

Constant Field Values

LAYOUT_FORMAT_VERSION

public static final int LAYOUT_FORMAT_VERSION

See Also:

Constant Field Values

Constructor Detail

LedgerLayout

public LedgerLayout(java.lang.String managerFactoryCls,
                    int managerVersion)

Ledger Layout Constructor.

Parameters:

managerFactoryCls - Ledger Manager Factory Class

managerVersion - Ledger Manager Version

LedgerLayout

LedgerLayout(java.lang.String managerFactoryCls,
             int managerVersion,
             int layoutVersion)

Method Detail

serialize

public byte[] serialize()
                 throws java.io.IOException

Generates a byte array based on the LedgerLayout object.

Returns:

byte[]

Throws:

java.io.IOException

parseLayout

public static LedgerLayout parseLayout(byte[] bytes)
                                throws java.io.IOException

Parses a given byte array and transforms into a LedgerLayout object.

Parameters:

bytes - byte array to parse

Returns:

LedgerLayout

Throws:

java.io.IOException - if the given byte[] cannot be parsed

getManagerFactoryClass

public java.lang.String getManagerFactoryClass()

getManagerVersion

public int getManagerVersion()

getLayoutFormatVersion

public int getLayoutFormatVersion()

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

canEqual

protected boolean canEqual(java.lang.Object other)

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object