public class TreeClassAdapter extends ClassAdapter
ClassAdapter that constructs a tree representation of
the classes it vists. Each visitXXX method of this class
constructs an XXXNode and adds it to the classNode node (except the visitEnd method, which just
makes the cv class visitor visit the tree that has just been
constructed).
In order to implement a usefull class adapter based on a tree representation
of classes, one just need to override the visitEnd method
with a method of the following form:
public void visitEnd () {
// ...
// code to modify the classNode tree, can be arbitrary complex
// ...
// makes the cv visitor visit this modified class:
classNode.accept(cv);
}
| Modifier and Type | Field and Description |
|---|---|
ClassNode |
classNode
A tree representation of the class that is being visited by this visitor.
|
cv| Constructor and Description |
|---|
TreeClassAdapter(ClassVisitor cv)
Constructs a new
TreeClassAdapter object. |
| Modifier and Type | Method and Description |
|---|---|
void |
visit(int version,
int access,
String name,
String superName,
String[] interfaces,
String sourceFile)
Visits the header of the class.
|
void |
visitAttribute(Attribute attr)
Visits a non standard attribute of the class.
|
void |
visitEnd()
Visits the end of the class.
|
void |
visitField(int access,
String name,
String desc,
Object value,
Attribute attrs)
Visits a field of the class.
|
void |
visitInnerClass(String name,
String outerName,
String innerName,
int access)
Visits information about an inner class.
|
CodeVisitor |
visitMethod(int access,
String name,
String desc,
String[] exceptions,
Attribute attrs)
Visits a method of the class.
|
public ClassNode classNode
public TreeClassAdapter(ClassVisitor cv)
TreeClassAdapter object.cv - the class visitor to which this adapter must delegate calls.public void visit(int version,
int access,
String name,
String superName,
String[] interfaces,
String sourceFile)
ClassVisitorvisit in interface ClassVisitorvisit in class ClassAdapterversion - the class version.access - the class's access flags (see Constants). This
parameter also indicates if the class is deprecated.name - the internal name of the class (see getInternalName).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 java.lang.Object class.interfaces - the internal names of the class's interfaces (see getInternalName). May be null.sourceFile - the name of the source file from which this class was
compiled. May be null.public void visitInnerClass(String name, String outerName, String innerName, int access)
ClassVisitorvisitInnerClass in interface ClassVisitorvisitInnerClass in class ClassAdaptername - 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.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.public void visitField(int access,
String name,
String desc,
Object value,
Attribute attrs)
ClassVisitorvisitField in interface ClassVisitorvisitField in class ClassAdapteraccess - the field's access flags (see Constants). This
parameter also indicates if the field is synthetic and/or deprecated.name - the field's name.desc - the field's descriptor (see Type).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.attrs - the non standard method attributes, linked together by their
next field. May be null.public CodeVisitor visitMethod(int access, String name, String desc, String[] exceptions, Attribute attrs)
ClassVisitorCodeVisitor instance (or null) each time it
is called, i.e., it should not return a previously returned visitor.visitMethod in interface ClassVisitorvisitMethod in class ClassAdapteraccess - the method's access flags (see Constants). This
parameter also indicates if the method is synthetic and/or deprecated.name - the method's name.desc - the method's descriptor (see Type).exceptions - the internal names of the method's exception
classes (see getInternalName). May be
null.attrs - the non standard method attributes, linked together by their
next field. May be null.public void visitAttribute(Attribute attr)
ClassVisitorvisitAttribute in interface ClassVisitorvisitAttribute in class ClassAdapterattr - a non standard class attribute. Must not be null.public void visitEnd()
ClassVisitorvisitEnd in interface ClassVisitorvisitEnd in class ClassAdapterCopyright © 2025. All rights reserved.