# Uses of Class
org.picocontainer.parameters.AbstractParameter

Packages that use AbstractParameter
Package
Description
org.picocontainer.parameters

## Uses of AbstractParameter in org.picocontainer.parameters

Subclasses of AbstractParameter in org.picocontainer.parameters
Modifier and Type
Class
Description
`class`
`BasicComponentParameter`
A BasicComponentParameter should be used to pass in a particular component as argument to a different component's constructor.
`class`
`CollectionComponentParameter`
A CollectionComponentParameter should be used to support inject an `Array`, a `Collection`or `Map`of components automatically.
`class`
`ComponentParameter`
A ComponentParameter should be used to pass in a particular component as argument to a different component's constructor.
`class`
`ConstantParameter`
A ConstantParameter should be used to pass in "constant" arguments to constructors.
`final class`
`DefaultConstructorParameter`
Part of the replacement construct for Parameter.ZERO
`class`
`NullParameter`
Once in a great while, you actually want to pass in 'null' as an argument.