net.sourceforge.jnlp.cache

## Class UpdatePolicy

- java.lang.Object
- - net.sourceforge.jnlp.cache.UpdatePolicy

-     public class UpdatePolicy
      extends java.lang.Object

  A policy that determines when a resource should be checked for an updated version.

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static UpdatePolicy` | `ALWAYS`
    `static UpdatePolicy` | `FORCE`
    `static UpdatePolicy` | `NEVER`
    `static UpdatePolicy` | `SESSION`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `UpdatePolicy()` Create a new update policy; this policy always updates the entry unless the shouldUpdate method is overridden.
    `UpdatePolicy(long timeDiff)` Create an update policy that only checks a file for being updated if it has not been checked for longer than the specified time.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `shouldUpdate(CacheEntry entry)` Returns whether the resource should be checked for being up-to-date.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### ALWAYS

          public static UpdatePolicy ALWAYS

    - #### SESSION

          public static UpdatePolicy SESSION

    - #### FORCE

          public static UpdatePolicy FORCE

    - #### NEVER

          public static UpdatePolicy NEVER

  - ### Constructor Detail

    - #### UpdatePolicy

          public UpdatePolicy()

      Create a new update policy; this policy always updates the entry unless the shouldUpdate method is overridden.

    - #### UpdatePolicy

          public UpdatePolicy(long timeDiff)

      Create an update policy that only checks a file for being updated if it has not been checked for longer than the specified time.
      Parameters:
        `timeDiff` - how long in ms until update needed

  - ### Method Detail

    - #### shouldUpdate

          public boolean shouldUpdate(CacheEntry entry)

      Returns whether the resource should be checked for being up-to-date.

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