Package io.debezium.connector.oracle

Class Scn

java.lang.Object

io.debezium.connector.oracle.Scn

All Implemented Interfaces:

Comparable<Scn>

public class Scn
extends Object
implements Comparable<Scn>

Oracle System Change Number implementation

Author:

Chris Cranford

Field Summary

Fields

Modifier and Type	Field	Description
static Scn	MAX	Represents an Scn that implies the maximum possible value of an SCN, useful as a placeholder.
static Scn	NULL	Represents an Scn without a value.
static Scn	ONE	Represents an Scn with value 1, useful for playing with inclusive/exclusive query boundaries.
private BigInteger	scn

Constructor Summary

Constructors

Constructor	Description
Scn(BigInteger scn)

Method Summary

Modifier and Type	Method	Description
Scn	add(Scn value)	Returns a SCn whose value is (this + value).
int	compareTo(Scn o)	Compares this Scn with the specified Scn.
boolean	equals(Object o)
int	hashCode()
boolean	isNull()	Returns whether this Scn is null and contains no value.
long	longValue()	Get the Scn represented as a long data type.
Scn	subtract(Scn value)	Returns a Scn whose value is (this - value).
String	toString()
static Scn	valueOf(int value)	Construct a Scn from an integer value.
static Scn	valueOf(long value)	Construct a Scn from a long value.
static Scn	valueOf(String value)	Construct a Scn from a string value.

Methods inherited from class java.lang.Object

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

Field Detail

MAX

public static final Scn MAX

Represents an Scn that implies the maximum possible value of an SCN, useful as a placeholder.

NULL

public static final Scn NULL

Represents an Scn without a value.

ONE

public static final Scn ONE

Represents an Scn with value 1, useful for playing with inclusive/exclusive query boundaries.

scn

private final BigInteger scn

Constructor Detail

Scn

public Scn(BigInteger scn)

Method Detail

isNull

public boolean isNull()

Returns whether this Scn is null and contains no value.

valueOf

public static Scn valueOf(int value)

Construct a Scn from an integer value.

Parameters:

value - integer value

Returns:

instance of Scn

valueOf

public static Scn valueOf(long value)

Construct a Scn from a long value.

Parameters:

value - long value

Returns:

instance of Scn

valueOf

public static Scn valueOf(String value)

Construct a Scn from a string value.

Parameters:

value - string value, should not be null

Returns:

instance of Scn

longValue

public long longValue()

Get the Scn represented as a long data type.

add

public Scn add(Scn value)

Returns a SCn whose value is (this + value).

Parameters:

value - the value to be added to this Scn.

Returns:

this + value

subtract

public Scn subtract(Scn value)

Returns a Scn whose value is (this - value).

Parameters:

value - the value to be subtracted from this Scn.

Returns:

this - value

compareTo

public int compareTo(Scn o)

Compares this Scn with the specified Scn.

Specified by:

compareTo in interface Comparable<Scn>

Parameters:

o - Scn to which this Scn is to be compared

Returns:

-1, 0, or 1 as this {code Scn} is numerically less than, equal to, or greater than o.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object