Package org.refcodes.factory
Interface CollectionFactory<C extends Collection<?>>
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- Type Parameters:
C
- the generic type
- Functional Interface:
- This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface CollectionFactory<C extends Collection<?>>
TheCollectionFactory
defines the functionality which must be provided in order to represent a factory for object creation of *ALL* objects being of a requested type (in contrast to theTypeFactory
and theLookupFactory
which create instances of a predefined type specified with a generic argument). Many alternative implementations of aCollectionFactory
may may exist which construct the instances their way.Having factories that generic as we define it here, we are able to decouple our business logic from any specific framework: Your business logic must not know anything about how the instances are generated. It mainly just needs to know how to use the
CollectionFactory
. It is up to the application "end point", i.e. a command line tool with a main-method or a web-application to finally decide which factory to use.Depending on the implementation used or configuration provided, the
CollectionFactory
may return singletons or dedicated separate instances when queried for instances.
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Method Summary
All Methods Instance Methods Abstract Methods Default Methods Modifier and Type Method Description C
createInstances()
This method creates / retrieves all instances of the given type.default C
createInstances(Map<String,String> aProperties)
This method creates / retrieves all instances of the given type.
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Method Detail
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createInstances
C createInstances()
This method creates / retrieves all instances of the given type.- Returns:
- A set with all instance of the required type for the given type.
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createInstances
default C createInstances(Map<String,String> aProperties)
This method creates / retrieves all instances of the given type.- Parameters:
aProperties
- The dynamic properties which are used to configure the desired bean.- Returns:
- A set with all instance of the required type for the given type.
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