hu.akarnokd.reactive4java.base

Class Timestamped<T>

java.lang.Object

hu.akarnokd.reactive4java.base.Timestamped<T>

Type Parameters:

T - the contained type

All Implemented Interfaces:

java.lang.Comparable<Timestamped<T>>

public final class Timestamped<T>
extends java.lang.Object
implements java.lang.Comparable<Timestamped<T>>

An immutable record holding a value and timestamp pairs.

Constructor Summary

Constructors

Constructor and Description
Timestamped(T value, long timestamp) Construct a new timestamped value.

Method Summary

Modifier and Type	Method and Description
int	compareTo(Timestamped<T> that)
boolean	equals(java.lang.Object obj)
int	hashCode()
static <T> Timestamped<T>	of(T value) A type inference helper to construct a new timestamped value where the timestamp is the System.currentTimeMillis().
static <T> Timestamped<T>	of(Timestamped<T> value) A type inference helper to construct a new timestamped value from another timestamped value where the new timestamp is the System.currentTimeMillis().
static <T> Timestamped<T>	of(Timestamped<T> value, long timestamp) A type inference helper to construct a new timestamped value from another timestamped value by keeping the value and assigning a new value.
static <T> Timestamped<T>	of(T value, long timestamp) A type inference helper to construct a new timestamped value.
long	timestamp()
java.lang.String	toString()
T	value()

Methods inherited from class java.lang.Object

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

Constructor Detail

Timestamped

public Timestamped(T value,
                   long timestamp)

Construct a new timestamped value.

Parameters:

value - the value

timestamp - the timestamp

Method Detail

value

public T value()

Returns:

the contained value

timestamp

public long timestamp()

Returns:

the associated timestamp.

of

@Nonnull
public static <T> Timestamped<T> of(T value,
                                              long timestamp)

A type inference helper to construct a new timestamped value.

Type Parameters:

T - the type of the value

Parameters:

value - the value

timestamp - the timestamp

Returns:

the timestamped object

of

@Nonnull
public static <T> Timestamped<T> of(@Nonnull
                                              Timestamped<T> value,
                                              long timestamp)

A type inference helper to construct a new timestamped value from another timestamped value by keeping the value and assigning a new value.

Type Parameters:

T - the type of the value

Parameters:

value - the value

timestamp - the timestamp

Returns:

the timestamped object

of

@Nonnull
public static <T> Timestamped<T> of(T value)

A type inference helper to construct a new timestamped value where the timestamp is the System.currentTimeMillis().

Type Parameters:

T - the type of the value

Parameters:

value - the value

Returns:

the timestamped object

of

public static <T> Timestamped<T> of(@Nonnull
                                    Timestamped<T> value)

A type inference helper to construct a new timestamped value from another timestamped value where the new timestamp is the System.currentTimeMillis().

Type Parameters:

T - the type of the value

Parameters:

value - the value

Returns:

the timestamped object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

compareTo

public int compareTo(Timestamped<T> that)

Specified by:

compareTo in interface java.lang.Comparable<Timestamped<T>>