interface SelfCheckingResourceInterface implements ResourceInterface
Interface for Resources that can check for freshness autonomously, without special support from external services.
Methods
| string | __toString() Returns a string representation of the Resource. | from ResourceInterface |
| bool | isFresh(int $timestamp) Returns true if the resource has not been updated since the given timestamp. | |
| mixed | getResource() deprecated Returns the tied resource. | from ResourceInterface |
Details
string __toString()
Returns a string representation of the Resource.
This method is necessary to allow for resource de-duplication, for example by means of array_unique(). The string returned need not have a particular meaning, but has to be identical for different ResourceInterface instances referring to the same resource; and it should be unlikely to collide with that of other, unrelated resource instances.
bool isFresh(int $timestamp)
Returns true if the resource has not been updated since the given timestamp.
mixed getResource() deprecated
deprecated
since 2.8, to be removed in 3.0. As there are many different kinds of resource, a single getResource() method does not make sense at the interface level. You can still call getResource() on implementing classes, probably after performing a type check. If you know the concrete type of Resource at hand, the return value of this method may make sense to you.Returns the tied resource.
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