Package io.pravega.shared.watermarks

Class Watermark

java.lang.Object

io.pravega.shared.watermarks.Watermark

public class Watermark
extends java.lang.Object

Represents a serializable Watermark. A watermark represents a window on time with corresponding stream cut position that indicates to readers where they in a stream are vis-a-vis time provided by writers. The lower time bound is a timestamp which is less than or equal to the most recent value provided by any writer. The upper time bound is a timestamp which is greater than or equal to any time that were provided by any writer. Stream cut is an upper bound on most recent positions provided by all writer.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Watermark.WatermarkBuilder

Field Summary

Fields

Modifier and Type	Field	Description
static Watermark	EMPTY
static io.pravega.shared.watermarks.Watermark.WatermarkSerializer	SERIALIZER

Constructor Summary

Constructors

Constructor	Description
Watermark(long lowerTimeBound, long upperTimeBound, java.util.Map<SegmentWithRange,java.lang.Long> streamCut)

Method Summary

Modifier and Type	Method	Description
static Watermark.WatermarkBuilder	builder()
protected boolean	canEqual(java.lang.Object other)
boolean	equals(java.lang.Object o)
static Watermark	fromByteBuf(java.nio.ByteBuffer data)
long	getLowerTimeBound()
java.util.Map<SegmentWithRange,java.lang.Long>	getStreamCut()
long	getUpperTimeBound()
int	hashCode()
java.nio.ByteBuffer	toByteBuf()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

SERIALIZER

public static final io.pravega.shared.watermarks.Watermark.WatermarkSerializer SERIALIZER

EMPTY

public static final Watermark EMPTY

Constructor Detail

Watermark

public Watermark(long lowerTimeBound,
                 long upperTimeBound,
                 java.util.Map<SegmentWithRange,java.lang.Long> streamCut)

Method Detail

fromByteBuf

public static Watermark fromByteBuf(java.nio.ByteBuffer data)

toByteBuf

public java.nio.ByteBuffer toByteBuf()

builder

public static Watermark.WatermarkBuilder builder()

getLowerTimeBound

public long getLowerTimeBound()

getUpperTimeBound

public long getUpperTimeBound()

getStreamCut

public java.util.Map<SegmentWithRange,java.lang.Long> getStreamCut()

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