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 final Scn
    MAX
    Represents an Scn that implies the maximum possible value of an SCN, useful as a placeholder.
    static final Scn
    NULL
    Represents an Scn without a value.
    static final Scn
    ONE
    Represents an Scn with value 1, useful for playing with inclusive/exclusive query boundaries.
    private final 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).
    BigInteger
    asBigInteger()
     
    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 Details

    • 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 Details

  • Method Details

    • 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.

    • asBigInteger

      public BigInteger asBigInteger()

    • 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