com.asakusafw.vocabulary.flow.graph

Class FlowElementResolver

java.lang.Object

com.asakusafw.vocabulary.flow.graph.FlowElementResolver

public class FlowElementResolver
extends Object

Resolves connections of FlowElement.

Since:

0.1.0

Version:

0.4.0

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FlowElementResolver.OutputDriver<T> An adapter class that enables FlowElementOutput performs as Source.

Constructor Summary

Constructors

Constructor and Description
FlowElementResolver(FlowElement element) Creates a new instance.
FlowElementResolver(FlowElementDescription description) Creates a new instance.

Method Summary

Modifier and Type	Method and Description
FlowElement	getElement() Returns the target flow element of this resolver.
FlowElementInput	getInput(String name) Returns the input port of the target flow element.
FlowElementOutput	getOutput(String name) Returns the output port of the target flow element.
void	resolveInput(String name, Source<?> source) Connects between an upstream source and the input port of the flow element.
<T> Source<T>	resolveOutput(String name) Returns the output port of the target flow element as upstream source.
void	setName(String name) Sets the flow element name.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FlowElementResolver

public FlowElementResolver(FlowElement element)

Creates a new instance.

Parameters:

element - target element.

Throws:

IllegalArgumentException - if some parameters were null

Since:

0.4.0

FlowElementResolver

public FlowElementResolver(FlowElementDescription description)

Creates a new instance.

Parameters:

description - a description of the target FlowElement

Throws:

IllegalArgumentException - if some parameters were null

Method Detail

getElement

public FlowElement getElement()

Returns the target flow element of this resolver.

Returns:

the target flow element

getInput

public FlowElementInput getInput(String name)

Returns the input port of the target flow element.

Parameters:

name - the target port name

Returns:

the target port

Throws:

NoSuchElementException - if the target flow element does not have such a port

IllegalArgumentException - if some parameters were null

getOutput

public FlowElementOutput getOutput(String name)

Returns the output port of the target flow element.

Parameters:

name - the target port name

Returns:

the target port

Throws:

NoSuchElementException - if the target flow element does not have such a port

IllegalArgumentException - if some parameters were null

resolveInput

public void resolveInput(String name,
                         Source<?> source)

Connects between an upstream source and the input port of the flow element.

Parameters:

name - the target port name

source - the upstream source

Throws:

NoSuchElementException - if the target flow element does not have such a port

IllegalArgumentException - if some parameters were null

resolveOutput

public <T> Source<T> resolveOutput(String name)

Returns the output port of the target flow element as upstream source.

Type Parameters:

T - the data type of the port

Parameters:

name - the target port name

Returns:

the target port

Throws:

NoSuchElementException - if the target flow element does not have such a port

IllegalArgumentException - if some parameters were null

setName

public void setName(String name)

Sets the flow element name.

Parameters:

name - the name

Throws:

UnsupportedOperationException - if the target flow element does not support changing its name

IllegalArgumentException - if the parameter is null