public interface ResourceFactory
ResourceFactory is used to acquire instances of Resources.
The method produceResource(Class,ResourceSpecifier,Map) is used to produce an instance
of a Resource. The input to this method
is a ResourceSpecifier, which contains all of the information that
this factory can use to acquire a reference to the resource.
Most applications will not need to interact with this interface.
Applications will generally create resources using the static methods on
the UIMAFramework class.
Note that multiple threads may attempt to manufacture resources simultaneously, so implementations of this interface MUST be threadsafe.
Developers needing to provide their own ResourceFactory may
wish to consider using the provided
SimpleResourceFactory implementation.
| Modifier and Type | Method and Description |
|---|---|
Resource |
produceResource(java.lang.Class<? extends Resource> aResourceClass,
ResourceSpecifier aSpecifier,
java.util.Map<java.lang.String,java.lang.Object> aAdditionalParams)
Produces an appropriate
Resource instance from a ResourceSpecifier. |
Resource produceResource(java.lang.Class<? extends Resource> aResourceClass, ResourceSpecifier aSpecifier, java.util.Map<java.lang.String,java.lang.Object> aAdditionalParams) throws ResourceInitializationException
Resource instance from a ResourceSpecifier.
This version of produceResource takes a Map containing additional parameters to
be passed to the Resource.initialize(ResourceSpecifier,Map) method.aResourceClass - the class of resource to be produced (NOTE: this is intended to be a standard UIMA
interface name such as "TextAnalysisEngine" or "ASB")aSpecifier - an object that specifies how to acquire an instance of a Resource.aAdditionalParams - a Map containing additional parameters to pass to the
Resource.initialize(ResourceSpecifier,Map) method. May be null
if there are no parameters.Resource instance. Returns null if this factory does
not know how to create a Resource from the ResourceSpecifier provided.ResourceInitializationException - if a failure occurred during production of the resourceCopyright © 2006–2014 The Apache Software Foundation. All rights reserved.