Timestamp (Java Platform SE 7 b138)

java.lang.Object
- java.security.Timestamp

All Implemented Interfaces:

Serializable
```
public final class Timestamp
extends Object
implements Serializable
```
This class encapsulates information about a signed timestamp. It is immutable. It includes the timestamp's date and time as well as information about the Timestamping Authority (TSA) which generated and signed the timestamp.

Since:

1.5

See Also:
Serialized Form

Constructor Summary

Constructors
Constructor and Description

Timestamp(Date timestamp, CertPath signerCertPath)
Constructs a Timestamp.

Constructors
Constructor and Description
`Timestamp(Date timestamp, CertPath signerCertPath)` Constructs a Timestamp.

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`equals(Object obj)` Tests for equality between the specified object and this timestamp.
`CertPath`	`getSignerCertPath()` Returns the certificate path for the Timestamping Authority.
`Date`	`getTimestamp()` Returns the date and time when the timestamp was generated.
`int`	`hashCode()` Returns the hash code value for this timestamp.
`String`	`toString()` Returns a string describing this timestamp.

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

- Constructor Detail
  - Timestamp
```
public Timestamp(Date timestamp,
         CertPath signerCertPath)
```
    Constructs a Timestamp.
    
    Parameters:
    timestamp - is the timestamp's date and time. It must not be null.
    signerCertPath - is the TSA's certificate path. It must not be null.
    
    Throws:
    
    NullPointerException - if timestamp or signerCertPath is null.
- Method Detail
  - getTimestamp
```
public Date getTimestamp()
```
    Returns the date and time when the timestamp was generated.
    
    Returns:
    The timestamp's date and time.
  - getSignerCertPath
```
public CertPath getSignerCertPath()
```
    Returns the certificate path for the Timestamping Authority.
    
    Returns:
    The TSA's certificate path.
  - hashCode
```
public int hashCode()
```
    Returns the hash code value for this timestamp. The hash code is generated using the date and time of the timestamp and the TSA's certificate path.
    
    Overrides:
    
    hashCode in class Object
    
    Returns:
    a hash code value for this timestamp.
    See Also:
    Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)
  - equals
```
public boolean equals(Object obj)
```
    Tests for equality between the specified object and this timestamp. Two timestamps are considered equal if the date and time of their timestamp's and their signer's certificate paths are equal.
    
    Overrides:
    
    equals in class Object
    
    Parameters:
    obj - the object to test for equality with this timestamp.
    
    Returns:
    true if the timestamp are considered equal, false otherwise.
    See Also:
    Object.hashCode(), HashMap
  - toString
```
public String toString()
```
    Returns a string describing this timestamp.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    A string comprising the date and time of the timestamp and its signer's certificate.

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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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DRAFT ea-b138

Class Timestamp

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Timestamp

Method Detail

getTimestamp

getSignerCertPath

hashCode

equals

toString