Package org.eclipse.sisu.space

Class QualifierCache

java.lang.Object

org.eclipse.sisu.space.QualifierCache

All Implemented Interfaces:

ClassVisitor

final class QualifierCache
extends Object
implements ClassVisitor

Caching ClassVisitor that maintains a map of known Qualifier annotations.

Field Summary

Fields

Modifier and Type	Field	Description
private static final Map<String,Boolean>	cachedResults
private boolean	isQualified
private static final String	NAMED_DESC
private static final String	QUALIFIER_DESC

Fields inherited from interface org.eclipse.sisu.space.ClassVisitor

NON_INSTANTIABLE

Constructor Summary

Constructors

Constructor	Description
QualifierCache()

Method Summary

Modifier and Type	Method	Description
void	enterClass(int modifiers, String name, String _extends, String[] _implements)	Enters the class definition.
void	leaveClass()	Leaves the class definition.
(package private) boolean	qualify(ClassSpace space, String desc)	Scans the given annotation type to see if it is marked with Qualifier.
AnnotationVisitor	visitAnnotation(String desc)	Visits an annotation declared on the class.

Methods inherited from class java.lang.Object

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

Field Details

QUALIFIER_DESC

private static final String QUALIFIER_DESC

See Also:

• Constant Field Values

NAMED_DESC

private static final String NAMED_DESC

See Also:

• Constant Field Values

cachedResults

private static final Map<String,Boolean> cachedResults

isQualified

private boolean isQualified

Constructor Details

QualifierCache

QualifierCache()

Method Details

enterClass

public void enterClass(int modifiers,
 String name,
 String _extends,
 String[] _implements)

Description copied from interface: ClassVisitor

Enters the class definition.

Specified by:

enterClass in interface ClassVisitor

Parameters:

modifiers - The access modifiers

name - The internal name, such as "javax/inject/Provider"

_extends - Extends this superclass

_implements - Implements these interfaces

visitAnnotation

public AnnotationVisitor visitAnnotation(String desc)

Description copied from interface: ClassVisitor

Visits an annotation declared on the class.

Specified by:

visitAnnotation in interface ClassVisitor

Parameters:

desc - The JVM descriptor for the annotation class, such as "Ljavax/inject/Qualifier;"

Returns:

Annotation visitor; null if it is not interested in visiting the annotation

See Also:

• SpaceScanner.jvmDescriptor(Class)

leaveClass

public void leaveClass()

Description copied from interface: ClassVisitor

Leaves the class definition.

Specified by:

leaveClass in interface ClassVisitor

qualify

boolean qualify(ClassSpace space,
 String desc)

Scans the given annotation type to see if it is marked with Qualifier.

Parameters:

space - The class space

desc - The annotation descriptor

Returns:

true if the annotation is a qualifier; otherwise false