Record Class LogSnapshot

java.lang.Object

java.lang.Record

org.j7m.middleware.api.durablelog.LogSnapshot

Record Components:

stream - logical stream identifier

markerOffset - offset of the snapshot marker record

timestampMillis - marker timestamp in epoch milliseconds

metadata - snapshot marker metadata

All Implemented Interfaces:

Serializable

public record LogSnapshot(LogStreamId stream, LogOffset markerOffset, long timestampMillis, Map<String,String> metadata)
extends Record
implements Serializable

Snapshot marker metadata written to the log.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
LogSnapshot(LogStreamId stream, LogOffset markerOffset, long timestampMillis, Map<String,String> metadata)	Creates a snapshot marker result.

Method Summary

Modifier and Type	Method	Description
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
final int	hashCode()	Returns a hash code value for this object.
LogOffset	markerOffset()	Returns the value of the markerOffset record component.
Map<String,String>	metadata()	Returns the value of the metadata record component.
LogStreamId	stream()	Returns the value of the stream record component.
long	timestampMillis()	Returns the value of the timestampMillis record component.
final String	toString()	Returns a string representation of this record class.

Methods inherited from class Object

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

Constructor Details

LogSnapshot

public LogSnapshot(LogStreamId stream,
 LogOffset markerOffset,
 long timestampMillis,
 Map<String,String> metadata)

Creates a snapshot marker result.

Method Details

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. Reference components are compared with Objects::equals(Object,Object); primitive components are compared with the compare method from their corresponding wrapper classes.

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

stream

public LogStreamId stream()

Returns the value of the stream record component.

Returns:

the value of the stream record component

markerOffset

public LogOffset markerOffset()

Returns the value of the markerOffset record component.

Returns:

the value of the markerOffset record component

timestampMillis

public long timestampMillis()

Returns the value of the timestampMillis record component.

Returns:

the value of the timestampMillis record component

metadata

public Map<String,String> metadata()

Returns the value of the metadata record component.

Returns:

the value of the metadata record component