apple.foundation.enums

Class NSURLRequestCachePolicy

java.lang.Object

apple.foundation.enums.NSURLRequestCachePolicy

public final class NSURLRequestCachePolicy
extends java.lang.Object

[@enum] NSURLRequestCachePolicy

The NSURLRequestCachePolicy enum defines constants that can be used to specify the type of interactions that take place with the caching system when the URL loading system processes a request. Specifically, these constants cover interactions that have to do with whether already-existing cache data is returned to satisfy a URL load request.

[@constant] NSURLRequestUseProtocolCachePolicy Specifies that the caching logic defined in the protocol implementation, if any, is used for a particular URL load request. This is the default policy for URL load requests.

[@constant] NSURLRequestReloadIgnoringLocalCacheData Specifies that the data for the URL load should be loaded from the origin source. No existing local cache data, regardless of its freshness or validity, should be used to satisfy a URL load request.

[@constant] NSURLRequestReloadIgnoringLocalAndRemoteCacheData Specifies that not only should the local cache data be ignored, but that proxies and other intermediates should be instructed to disregard their caches so far as the protocol allows.

[@constant] NSURLRequestReloadIgnoringCacheData Older name for NSURLRequestReloadIgnoringLocalCacheData.

[@constant] NSURLRequestReturnCacheDataElseLoad Specifies that the existing cache data should be used to satisfy a URL load request, regardless of its age or expiration date. However, if there is no existing data in the cache corresponding to a URL load request, the URL is loaded from the origin source.

[@constant] NSURLRequestReturnCacheDataDontLoad Specifies that the existing cache data should be used to satisfy a URL load request, regardless of its age or expiration date. However, if there is no existing data in the cache corresponding to a URL load request, no attempt is made to load the URL from the origin source, and the load is considered to have failed. This constant specifies a behavior that is similar to an "offline" mode.

[@constant] NSURLRequestReloadRevalidatingCacheData Specifies that the existing cache data may be used provided the origin source confirms its validity, otherwise the URL is loaded from the origin source.

Field Summary

Fields

Modifier and Type	Field and Description
static long	ReloadIgnoringCacheData
static long	ReloadIgnoringLocalAndRemoteCacheData
static long	ReloadIgnoringLocalCacheData
static long	ReloadRevalidatingCacheData
static long	ReturnCacheDataDontLoad
static long	ReturnCacheDataElseLoad
static long	UseProtocolCachePolicy

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

UseProtocolCachePolicy

public static final long UseProtocolCachePolicy

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Constant Field Values

ReloadIgnoringLocalCacheData

public static final long ReloadIgnoringLocalCacheData

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Constant Field Values

ReloadIgnoringLocalAndRemoteCacheData

public static final long ReloadIgnoringLocalAndRemoteCacheData

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Constant Field Values

ReloadIgnoringCacheData

public static final long ReloadIgnoringCacheData

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Constant Field Values

ReturnCacheDataElseLoad

public static final long ReturnCacheDataElseLoad

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Constant Field Values

ReturnCacheDataDontLoad

public static final long ReturnCacheDataDontLoad

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Constant Field Values

ReloadRevalidatingCacheData

public static final long ReloadRevalidatingCacheData

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Constant Field Values