Package com.zfabrik.impl.components.any
Class AnyResource
- java.lang.Object
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- com.zfabrik.resources.provider.Resource
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- com.zfabrik.impl.components.any.AnyResource
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public class AnyResource extends com.zfabrik.resources.provider.Resource
An arbitrary resource. For any class, a resource will be maintained that returns for any implemented class or interface of the given class. If the class implements Resource, all Resource calls will be delegated. If the class implements Runnable, it will be called upon system state attain operations.
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Constructor Summary
Constructors Constructor Description AnyResource(java.lang.String name)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description <T> T
as(java.lang.Class<T> clz)
Retrieve a typed representation of the resource.void
invalidate()
This method gets called whenever a dependency resource has been invalidated or this resource needs to be invalidated.
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Method Detail
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as
public <T> T as(java.lang.Class<T> clz)
Description copied from class:com.zfabrik.resources.provider.Resource
Retrieve a typed representation of the resource.- Overrides:
as
in classcom.zfabrik.resources.provider.Resource
- Parameters:
clz
- expected return type- Returns:
- the expected return type instance represented by the resource or
null
if the type facade is not supported.
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invalidate
public void invalidate() throws com.zfabrik.resources.ResourceBusyException
Description copied from class:com.zfabrik.resources.provider.Resource
This method gets called whenever a dependency resource has been invalidated or this resource needs to be invalidated.This code should be executed in a life cycle code block of this resource instance, i.e. where dependencies are effectively managed, so that race conditions can be avoided.
State changing methods of a resource should always be synchronized (e.g. on this). This is in particular true for cross-resource dependencies. In order to assure consistency under race conditions, a dependent resource should first declare its dependency and then retrieve the resource implementation. In case of failures, resources should clean up by calling
handle().invalidate(true);
- Overrides:
invalidate
in classcom.zfabrik.resources.provider.Resource
- Throws:
com.zfabrik.resources.ResourceBusyException
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