Expiration (Google App Engine API for Java)

com.google.appengine.api.memcache

Class Expiration

• java.lang.Object
• • com.google.appengine.api.memcache.Expiration

• ---

  
  

  public final class Expiration
  extends java.lang.Object

  Expiration specifications on MemcacheService.putAll(Map , Expiration) and MemcacheService.put(Object, Object, Expiration) operations.

  Expiration has resolution to one second, although a milliseconds factory constructor is provided for convenience.

• • Method Summary

    All Methods Static Methods Instance Methods Concrete Methods 

    Modifier and Type	Method and Description
    static Expiration	byDeltaMillis(int milliDelay) Creates an Expiration for some number of milliseconds into the future.
    static Expiration	byDeltaSeconds(int secondsDelay) Creates an Expiration for some number of seconds in the future.
    boolean	equals(java.lang.Object obj)
    long	getMillisecondsValue() Fetches the expiration date, in milliseconds-since-epoch.
    int	getSecondsValue() Fetches the expiration date, in seconds-since-epoch.
    int	hashCode()
    static Expiration	onDate(java.util.Date expirationTime) Creates an expiration at specific date/time.

    • Methods inherited from class java.lang.Object

      getClass, notify, notifyAll, toString, wait, wait, wait

• • Method Detail

    • onDate

      public static Expiration onDate(java.util.Date expirationTime)

      Creates an expiration at specific date/time.

      Parameters:

      expirationTime - date/time after which an item must be discarded from the cache.

      Returns:

      a new Expiration object representing the given Date.

    • byDeltaMillis

      public static Expiration byDeltaMillis(int milliDelay)

      Creates an Expiration for some number of milliseconds into the future.

      Parameters:

      milliDelay - amount of time, in milliseconds, after which an item must be discarded from the cache.

      Returns:

      a new Expiration representing the requested time.

    • byDeltaSeconds

      public static Expiration byDeltaSeconds(int secondsDelay)

      Creates an Expiration for some number of seconds in the future.

      Parameters:

      secondsDelay - number of seconds after which an item must be discarded.

      Returns:

      a new Expiration for the requested time.

    • 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

    • getMillisecondsValue

      public long getMillisecondsValue()

      Fetches the expiration date, in milliseconds-since-epoch.

      Returns:

      timestamp of expiration, even if constructed via a delta rather than fixed date.

    • getSecondsValue

      public int getSecondsValue()

      Fetches the expiration date, in seconds-since-epoch.

      Returns:

      timestamp of expiration, even if constructed via a delta rather than fixed date.