org.vraptor.component
Class MethodParameter

java.lang.Object
  org.vraptor.component.MethodParameter

All Implemented Interfaces:

ReadParameter

public class MethodParameter
extends Object
implements ReadParameter

Defines an argument that a logic method receives.

Since:

2.3

Author:

Guilherme Silveira

Constructor Summary

MethodParameter(Class<?> param, Type generic, int position, String key)

Method Summary

Type	getGenericType()
String	getKey() The parameter key
Class<? extends Converter>	getOverridenConverter() Returns the overriden converter class attached to this read parameter
int	getPosition()
Class<?>	getType()
Object	guaranteeExistence(Object component, Object[] methodParams) Guarantees it's existence by instantiating itself if needed (or oblied), connecting to the logic component and returning itself
boolean	mightCreate() Should it instantiate required fields on the fly?
Object	newInstance()
void	set(Object component, Object[] methodParams, Object value)

Methods inherited from class java.lang.Object

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

Constructor Detail

MethodParameter

public MethodParameter(Class<?> param,
                       Type generic,
                       int position,
                       String key)

Method Detail

getKey

public String getKey()

Description copied from interface: ReadParameter

The parameter key

Specified by:

getKey in interface ReadParameter

Returns:

key

getOverridenConverter

public Class<? extends Converter> getOverridenConverter()

Description copied from interface: ReadParameter

Returns the overriden converter class attached to this read parameter

Specified by:

getOverridenConverter in interface ReadParameter

Returns:

the converter class

guaranteeExistence

public Object guaranteeExistence(Object component,
                                 Object[] methodParams)
                          throws SettingException

Description copied from interface: ReadParameter

Guarantees it's existence by instantiating itself if needed (or oblied), connecting to the logic component and returning itself

Specified by:

guaranteeExistence in interface ReadParameter

Parameters:

component - the logic component

Returns:

the instantiated object itself

Throws:

SettingException - some problem during its creation

mightCreate

public boolean mightCreate()

Description copied from interface: ReadParameter

Should it instantiate required fields on the fly?

Specified by:

mightCreate in interface ReadParameter

Returns:

true if it should instantiate them

getType

public Class<?> getType()

Specified by:

getType in interface ReadParameter

set

public void set(Object component,
                Object[] methodParams,
                Object value)
         throws SettingException

Specified by:

set in interface ReadParameter

Throws:

SettingException

getGenericType

public Type getGenericType()

Specified by:

getGenericType in interface ReadParameter

newInstance

public Object newInstance()
                   throws ComponentInstantiationException

Throws:

ComponentInstantiationException

getPosition

public int getPosition()