Timestamp (Babel CRDTs 0.0.7 API)

java.lang.Object
- pt.unl.fct.di.novasys.babel.crdts.state.utils.Timestamp

All Implemented Interfaces:

Comparable<Timestamp>
```
public class Timestamp
extends Object
implements Comparable<Timestamp>
```
Represents a timestamp to enable ordering of operations. The timestamp is composed as a replica identifier (replicaID) and a monotonic increasing counter (counter).

Field Summary

Fields
Modifier and Type Field and Description

static pt.unl.fct.di.novasys.network.ISerializer<Timestamp> serializer
A serializer to serialize a given timestamp.

Fields
Modifier and Type	Field and Description
`static pt.unl.fct.di.novasys.network.ISerializer<Timestamp>`	`serializer` A serializer to serialize a given timestamp.

Constructor Summary

Constructors
Constructor and Description
`Timestamp(ReplicaID replicaID)` Creates a new timestamp with the counter as zero.
`Timestamp(ReplicaID replicaID, int counter)` Creates a new timestamp.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`int`	`compareTo(Timestamp o)` Compares a timestamp passed as argument with this timestamp.
`Timestamp`	`copy()` Creates a copy of this timestamp.
`boolean`	`equals(Object o)`
`int`	`getCount()` Get the current counter value.
`ReplicaID`	`getReplicaID()` Get the replica identifier
`int`	`hashCode()`
`boolean`	`isBigger(Timestamp ts)` Checks if a given timestamp is bigger than the current counter
`boolean`	`isBiggerOrEqual(Timestamp ts)` Checks if a given timestamp is bigger or equal than the current counter
`boolean`	`isEqual(Timestamp ts)` Checks if a given timestamp is equal than the current counter
`boolean`	`isSmaller(Timestamp ts)` Checks if a given timestamp is smaller than the current counter
`boolean`	`isSmallerOrEqual(Timestamp ts)` Checks if a given timestamp is smaller or equal than the current counter
`static Timestamp`	`max(Timestamp ts1, Timestamp ts2)` Compares two timestamps.
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - serializer
```
public static pt.unl.fct.di.novasys.network.ISerializer<Timestamp> serializer
```
    A serializer to serialize a given timestamp.
- Constructor Detail
  - Timestamp
```
public Timestamp(ReplicaID replicaID,
                 int counter)
```
    Creates a new timestamp.
    
    Parameters:
    
    replicaID - replica identifier
    
    counter - the counter (must be bigger than zero).
  - Timestamp
```
public Timestamp(ReplicaID replicaID)
```
    Creates a new timestamp with the counter as zero.
    
    Parameters:
    
    replicaID - replica identifier
- Method Detail
  - getCount
```
public int getCount()
```
    Get the current counter value.
    
    Returns:
    
    the counter value.
  - getReplicaID
```
public ReplicaID getReplicaID()
```
    Get the replica identifier
    
    Returns:
    
    the replica identifier
  - isSmaller
```
public boolean isSmaller(Timestamp ts)
```
    Checks if a given timestamp is smaller than the current counter
    
    Parameters:
    
    ts - timestamp to compare
    
    Returns:
    
    true if it is, or false otherwhise
  - isSmallerOrEqual
```
public boolean isSmallerOrEqual(Timestamp ts)
```
    Checks if a given timestamp is smaller or equal than the current counter
    
    Parameters:
    
    ts - timestamp to compare
    
    Returns:
    
    true if it is, or false otherwhise
  - isBigger
```
public boolean isBigger(Timestamp ts)
```
    Checks if a given timestamp is bigger than the current counter
    
    Parameters:
    
    ts - timestamp to compare
    
    Returns:
    
    true if it is, or false otherwhise
  - isBiggerOrEqual
```
public boolean isBiggerOrEqual(Timestamp ts)
```
    Checks if a given timestamp is bigger or equal than the current counter
    
    Parameters:
    
    ts - timestamp to compare
    
    Returns:
    
    true if it is, or false otherwhise
  - isEqual
```
public boolean isEqual(Timestamp ts)
```
    Checks if a given timestamp is equal than the current counter
    
    Parameters:
    
    ts - timestamp to compare
    
    Returns:
    
    true if it is, or false otherwhise
  - copy
```
public Timestamp copy()
```
    Creates a copy of this timestamp. Modifying the copy doesn't alter the orginal one.
    
    Returns:
    
    a copy of the timestamp.
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - compareTo
```
public int compareTo(Timestamp o)
```
    Compares a timestamp passed as argument with this timestamp. This method offers a total order between any two timestamps. If the counter of both timestamps is equal, a tiebreaker is done on the replicas identifiers.
    
    Specified by:
    
    compareTo in interface Comparable<Timestamp>
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - max
```
public static Timestamp max(Timestamp ts1,
                            Timestamp ts2)
```
    Compares two timestamps. If they are equal, the first timestamp is returned
    
    Parameters:
    
    ts1 - the first timestamp
    
    ts2 - the second timestamp
    
    Returns:
    
    the bigger timestamp

Methods inherited from class java.lang.Object

serializer

Timestamp

Timestamp

getCount

getReplicaID

isSmaller

isSmallerOrEqual

isBigger

isBiggerOrEqual

isEqual

copy

equals

hashCode

compareTo

toString

max