com.thoughtworks.paranamer

Class AnnotationParanamer

java.lang.Object

com.thoughtworks.paranamer.AnnotationParanamer

All Implemented Interfaces:

Paranamer

public class AnnotationParanamer
extends Object
implements Paranamer

Implementation of Paranamer that uses @Named annotation of JSR 330. It is overridable to allow other annotations to be used (JBehave, Guice's original one)

Author:

Paul Hammant

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AnnotationParanamer.Jsr330Helper This is a different class, because the @Inject jar may not be in the classpath.

Field Summary

Fields

Modifier and Type	Field and Description
static String	__PARANAMER_DATA

Fields inherited from interface com.thoughtworks.paranamer.Paranamer

EMPTY_NAMES

Constructor Summary

Constructors

Constructor and Description
AnnotationParanamer()
AnnotationParanamer(Paranamer fallback)

Method Summary

Methods

Modifier and Type	Method and Description
protected String	getNamedValue(Annotation ann) Override this if you want something other than JSR 330's Named annotation.
protected boolean	isNamed(Annotation ann) Override this if you want something other than JSR 330's Named annotation.
String[]	lookupParameterNames(AccessibleObject methodOrConstructor) Lookup the parameter names of a given method.
String[]	lookupParameterNames(AccessibleObject methodOrCtor, boolean throwExceptionIfMissing) Lookup the parameter names of a given method.

Methods inherited from class java.lang.Object

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

Field Detail

__PARANAMER_DATA

public static final String __PARANAMER_DATA

See Also:

Constant Field Values

Constructor Detail

AnnotationParanamer

public AnnotationParanamer()

AnnotationParanamer

public AnnotationParanamer(Paranamer fallback)

Method Detail

lookupParameterNames

public String[] lookupParameterNames(AccessibleObject methodOrConstructor)

Description copied from interface: Paranamer

Lookup the parameter names of a given method.

Specified by:

lookupParameterNames in interface Paranamer

Parameters:

methodOrConstructor - the Method or Constructor for which the parameter names are looked up.

Returns:

A list of the parameter names.

lookupParameterNames

public String[] lookupParameterNames(AccessibleObject methodOrCtor,
                            boolean throwExceptionIfMissing)

Description copied from interface: Paranamer

Lookup the parameter names of a given method.

Specified by:

lookupParameterNames in interface Paranamer

Parameters:

methodOrCtor - the Method or Constructor for which the parameter names are looked up.

throwExceptionIfMissing - whether to throw an exception if no Paranamer data found (versus return null).

Returns:

A list of the parameter names.

getNamedValue

protected String getNamedValue(Annotation ann)

Override this if you want something other than JSR 330's Named annotation.

return ((Named) ann).value();

Parameters:

ann - the annotation in question

Returns:

a the name value.

isNamed

protected boolean isNamed(Annotation ann)

Override this if you want something other than JSR 330's Named annotation.

return ann instanceof Named;

Parameters:

ann - the annotation in question

Returns:

whether it is the annotation holding the parameter name