org.datanucleus.enhancer

Class ClassEnhancerImpl.MyClassVisitor

java.lang.Object

org.datanucleus.enhancer.asm.ClassVisitor

org.datanucleus.enhancer.ClassEnhancerImpl.MyClassVisitor

Enclosing class:

ClassEnhancerImpl

public static class ClassEnhancerImpl.MyClassVisitor
extends ClassVisitor

Convenience class to look up the class name for a file.

Field Summary

Fields inherited from class org.datanucleus.enhancer.asm.ClassVisitor

api, cv

Constructor Summary

Constructors

Constructor and Description
MyClassVisitor()

Method Summary

Modifier and Type	Method and Description
String	getClassName()
void	visit(int version, int access, String name, String sig, String supername, String[] intfs) Visits the header of the class.
AnnotationVisitor	visitAnnotation(String desc, boolean visible) Visits an annotation of the class.
void	visitAttribute(Attribute attr) Visits a non standard attribute of the class.
void	visitEnd() Visits the end of the class.
FieldVisitor	visitField(int access, String name, String desc, String signature, Object value) Visits a field of the class.
void	visitInnerClass(String name, String outerName, String innerName, int access) Visits information about an inner class.
MethodVisitor	visitMethod(int access, String name, String desc, String signature, String[] excpts) Visits a method of the class.
void	visitOuterClass(String owner, String name, String desc) Visits the enclosing class of the class.
void	visitSource(String source, String debug) Visits the source of the class.

Methods inherited from class org.datanucleus.enhancer.asm.ClassVisitor

visitTypeAnnotation

Methods inherited from class java.lang.Object

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

Constructor Detail

MyClassVisitor

public MyClassVisitor()

Method Detail

getClassName

public String getClassName()

visitInnerClass

public void visitInnerClass(String name,
                            String outerName,
                            String innerName,
                            int access)

Description copied from class: ClassVisitor

Visits information about an inner class. This inner class is not necessarily a member of the class being visited.

Overrides:

visitInnerClass in class ClassVisitor

Parameters:

name - the internal name of an inner class (see getInternalName).

outerName - the internal name of the class to which the inner class belongs (see getInternalName). May be null for not member classes.

innerName - the (simple) name of the inner class inside its enclosing class. May be null for anonymous inner classes.

access - the access flags of the inner class as originally declared in the enclosing class.

visit

public void visit(int version,
                  int access,
                  String name,
                  String sig,
                  String supername,
                  String[] intfs)

Description copied from class: ClassVisitor

Visits the header of the class.

Overrides:

visit in class ClassVisitor

Parameters:

version - the class version.

access - the class's access flags (see Opcodes). This parameter also indicates if the class is deprecated.

name - the internal name of the class (see getInternalName).

sig - the signature of this class. May be null if the class is not a generic one, and does not extend or implement generic classes or interfaces.

supername - the internal of name of the super class (see getInternalName). For interfaces, the super class is Object. May be null, but only for the Object class.

intfs - the internal names of the class's interfaces (see getInternalName). May be null.

visitAnnotation

public AnnotationVisitor visitAnnotation(String desc,
                                         boolean visible)

Description copied from class: ClassVisitor

Visits an annotation of the class.

Overrides:

visitAnnotation in class ClassVisitor

Parameters:

desc - the class descriptor of the annotation class.

visible - true if the annotation is visible at runtime.

Returns:

a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.

visitField

public FieldVisitor visitField(int access,
                               String name,
                               String desc,
                               String signature,
                               Object value)

Description copied from class: ClassVisitor

Visits a field of the class.

Overrides:

visitField in class ClassVisitor

Parameters:

access - the field's access flags (see Opcodes). This parameter also indicates if the field is synthetic and/or deprecated.

name - the field's name.

desc - the field's descriptor (see Type).

signature - the field's signature. May be null if the field's type does not use generic types.

value - the field's initial value. This parameter, which may be null if the field does not have an initial value, must be an Integer, a Float, a Long, a Double or a String (for int, float, long or String fields respectively). This parameter is only used for static fields. Its value is ignored for non static fields, which must be initialized through bytecode instructions in constructors or methods.

Returns:

a visitor to visit field annotations and attributes, or null if this class visitor is not interested in visiting these annotations and attributes.

visitMethod

public MethodVisitor visitMethod(int access,
                                 String name,
                                 String desc,
                                 String signature,
                                 String[] excpts)

Description copied from class: ClassVisitor

Visits a method of the class. This method must return a new MethodVisitor instance (or null) each time it is called, i.e., it should not return a previously returned visitor.

Overrides:

visitMethod in class ClassVisitor

Parameters:

access - the method's access flags (see Opcodes). This parameter also indicates if the method is synthetic and/or deprecated.

name - the method's name.

desc - the method's descriptor (see Type).

signature - the method's signature. May be null if the method parameters, return type and exceptions do not use generic types.

excpts - the internal names of the method's exception classes (see getInternalName). May be null.

Returns:

an object to visit the byte code of the method, or null if this class visitor is not interested in visiting the code of this method.

visitAttribute

public void visitAttribute(Attribute attr)

Description copied from class: ClassVisitor

Visits a non standard attribute of the class.

Overrides:

visitAttribute in class ClassVisitor

Parameters:

attr - an attribute.

visitOuterClass

public void visitOuterClass(String owner,
                            String name,
                            String desc)

Description copied from class: ClassVisitor

Visits the enclosing class of the class. This method must be called only if the class has an enclosing class.

Overrides:

visitOuterClass in class ClassVisitor

Parameters:

owner - internal name of the enclosing class of the class.

name - the name of the method that contains the class, or null if the class is not enclosed in a method of its enclosing class.

desc - the descriptor of the method that contains the class, or null if the class is not enclosed in a method of its enclosing class.

visitSource

public void visitSource(String source,
                        String debug)

Description copied from class: ClassVisitor

Visits the source of the class.

Overrides:

visitSource in class ClassVisitor

Parameters:

source - the name of the source file from which the class was compiled. May be null.

debug - additional debug information to compute the correspondance between source and compiled elements of the class. May be null.

visitEnd

public void visitEnd()

Description copied from class: ClassVisitor

Visits the end of the class. This method, which is the last one to be called, is used to inform the visitor that all the fields and methods of the class have been visited.

Overrides:

visitEnd in class ClassVisitor