Uses of Interface
org.apache.commons.chain.Command

Packages that use Command

Package	Description
org.apache.commons.chain	The fundamental API contracts for the Chain of Responsibility Pattern as implemented in this package.
org.apache.commons.chain.generic	Concrete implementations of generic Commands that are useful in many different environments, not tied to a particular tier such as Servlets).
org.apache.commons.chain.impl	Convenient base implementations of Chain of Responsibility Pattern contracts from org.apache.commons.chain.

Uses of Command in org.apache.commons.chain

Subinterfaces of Command in org.apache.commons.chain

Modifier and Type	Interface	Description
interface	Chain<C extends Context>	A Chain represents a configured list of Commands that will be executed in order to perform processing on a specified Context.
interface	Filter<C extends Context>	A Filter is a specialized Command that also expects the Chain that is executing it to call the postprocess() method if it called the execute() method.

Methods in org.apache.commons.chain with type parameters of type Command

Modifier and Type	Method	Description
<CMD extends Command<C>> void	Catalog.addCommand(String name, CMD command)	Add a new name and associated Command or Chain to the set of named commands known to this Catalog, replacing any previous command for that name.
<CMD extends Command<C>> void	Chain.addCommand(CMD command)	Add a Command to the list of Commands that will be called in turn when this Chain's execute() method is called.
<CMD extends Command<C>> CMD	Catalog.getCommand(String name)	Return the Command or Chain associated with the specified name, if any; otherwise, return null.
<CMD extends Command<C>> CMD	CatalogFactory.getCommand(String commandID)	Return a Command based on the given commandID.

Uses of Command in org.apache.commons.chain.generic

Classes in org.apache.commons.chain.generic that implement Command

Modifier and Type	Class	Description
class	CopyCommand<C extends Context>	Copy a specified literal value, or a context attribute stored under the fromKey (if any), to the toKey.
class	DispatchCommand<C extends Context>	An abstract base command which uses introspection to look up a method to execute.
class	DispatchLookupCommand<C extends Context>	This command combines elements of the LookupCommand with the DispatchCommand.
class	LookupCommand<C extends Context>	Look up a specified Command (which could also be a Chain) in a Catalog, and delegate execution to it.
class	RemoveCommand<C extends Context>	Remove any context attribute stored under the fromKey.

Methods in org.apache.commons.chain.generic that return Command

Modifier and Type	Method	Description
protected Command<C>	LookupCommand.getCommand(C context)	Return the Command instance to be delegated to.

Uses of Command in org.apache.commons.chain.impl

Classes in org.apache.commons.chain.impl that implement Command

Modifier and Type	Class	Description
class	ChainBase<C extends Context>	Convenience base class for Chain implementations.

Methods in org.apache.commons.chain.impl with type parameters of type Command

Modifier and Type	Method	Description
<CMD extends Command<C>> void	CatalogBase.addCommand(String name, CMD command)	Add a new name and associated Command to the set of named commands known to this Catalog, replacing any previous command for that name.
<CMD extends Command<C>> void	ChainBase.addCommand(CMD command)	See the Chain JavaDoc.
<CMD extends Command<C>> CMD	CatalogBase.getCommand(String name)	Return the Command associated with the specified name, if any; otherwise, return null.

Constructors in org.apache.commons.chain.impl with parameters of type Command

Modifier	Constructor	Description
	ChainBase(Command<C> command)	Construct a Chain configured with the specified Command.
	ChainBase(Command<C>[] commands)	Construct a Chain configured with the specified Commands.

Constructor parameters in org.apache.commons.chain.impl with type arguments of type Command

Modifier	Constructor	Description
	CatalogBase(Map<String,Command<C>> commands)	Create a catalog whose commands are those specified in the given Map.
	ChainBase(Collection<Command<C>> commands)	Construct a Chain configured with the specified Commands.