Timestamp (Java Platform SE 7 ) (original) (raw)

• 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.

  • 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](../../java/lang/Object.html "class in java.lang")  
     `[clone](../../java/lang/Object.html#clone%28%29), [finalize](../../java/lang/Object.html#finalize%28%29), [getClass](../../java/lang/Object.html#getClass%28%29), [notify](../../java/lang/Object.html#notify%28%29), [notifyAll](../../java/lang/Object.html#notifyAll%28%29), [wait](../../java/lang/Object.html#wait%28%29), [wait](../../java/lang/Object.html#wait%28long%29), [wait](../../java/lang/Object.html#wait%28long,%20int%29)`

• • Constructor Detail

     * #### Timestamp  
     public Timestamp([Date](../../java/util/Date.html "class in java.util") timestamp,  
              [CertPath](../../java/security/cert/CertPath.html "class in java.security.cert") 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](../../java/lang/NullPointerException.html "class in java.lang")` \- if timestamp or signerCertPath is null.  

  • Method Detail

    * #### getTimestamp  
    public [Date](../../java/util/Date.html "class in java.util") getTimestamp()  
    Returns the date and time when the timestamp was generated.  
    Returns:  
    The timestamp's date and time.  
    * #### getSignerCertPath  
    public [CertPath](../../java/security/cert/CertPath.html "class in java.security.cert") 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](../../java/lang/Object.html#hashCode%28%29)` in class `[Object](../../java/lang/Object.html "class in java.lang")`  
    Returns:  
    a hash code value for this timestamp.  
    See Also:  
    [Object.equals(java.lang.Object)](../../java/lang/Object.html#equals%28java.lang.Object%29), [System.identityHashCode(java.lang.Object)](../../java/lang/System.html#identityHashCode%28java.lang.Object%29)  
    * #### equals  
    public boolean equals([Object](../../java/lang/Object.html "class in java.lang") 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](../../java/lang/Object.html#equals%28java.lang.Object%29)` in class `[Object](../../java/lang/Object.html "class in java.lang")`  
    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()](../../java/lang/Object.html#hashCode%28%29), [HashMap](../../java/util/HashMap.html "class in java.util")  
    * #### toString  
    public [String](../../java/lang/String.html "class in java.lang") toString()  
    Returns a string describing this timestamp.  
    **Overrides:**  
    `[toString](../../java/lang/Object.html#toString%28%29)` in class `[Object](../../java/lang/Object.html "class in java.lang")`  
    Returns:  
    A string comprising the date and time of the timestamp and its signer's certificate.

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