org.springframework.binding.method
Class Parameter

java.lang.Object
  org.springframework.binding.method.Parameter

public class Parameter
extends java.lang.Object

A named method parameter. Each parameter has an identifying name and is of a specified type (class).

Author:

Keith Donald

Constructor Summary

Parameter(java.lang.Class type, Expression name)
Create a new named parameter definition.

Method Summary

boolean	equals(java.lang.Object obj)
java.lang.Object	evaluateArgument(java.lang.Object argumentSource, EvaluationContext context) Evaluate this method parameter against the provided argument source, returning a single method argument value.
Expression	getName() Returns the parameter name.
java.lang.Class	getType() Returns the parameter type.
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Parameter

public Parameter(java.lang.Class type,
                 Expression name)

Create a new named parameter definition. Named parameters are capable of resolving parameter values (arguments) from argument sources.

Parameters:

type - the parameter type, may be null

name - the name the method argument expression (required)

Method Detail

getType

public java.lang.Class getType()

Returns the parameter type. Could be null if no parameter type was specified.

getName

public Expression getName()

Returns the parameter name.

evaluateArgument

public java.lang.Object evaluateArgument(java.lang.Object argumentSource,
                                         EvaluationContext context)

Evaluate this method parameter against the provided argument source, returning a single method argument value.

Parameters:

argumentSource - the meyhod argument source

context - the evaluation context

Returns:

the method argument value

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object