sun.jvm.hotspot.debugger.cdbg

Interface ObjectVisitor

All Known Implementing Classes:

DefaultObjectVisitor

public interface ObjectVisitor

Provides uniform visitation to primitive and compound objects. Typically one will have an Address of an "object" (in the idealistic C++ definition, including "primitive objects" like ints) and a Type for that object. This visitor interface allows one to either get the value of the object (if of primitive type) or iterate through its fields, getting the value of each, in a consistent fashion. Also supports iteration through arrays of known length.

Method Summary

Modifier and Type	Method and Description
void	doArray(FieldIdentifier f, Address val) Primitive field or object of array type.
void	doBit(FieldIdentifier f, long val) Primitive field or object of integer bitfield type.
void	doCompound(FieldIdentifier f, Address addressOfEmbeddedCompoundObject) Identifies embedded objects in compound objects.
void	doDouble(FieldIdentifier f, double val) Primitive field or object of double-precision floating-point type.
void	doEnum(FieldIdentifier f, long val, java.lang.String enumName) Primitive field or object of enumerated type type.
void	doFloat(FieldIdentifier f, float val) Primitive field or object of single-precision floating-point type.
void	doInt(FieldIdentifier f, long val) Primitive field or object of integer type.
void	doPointer(FieldIdentifier f, Address val) Primitive field or object of pointer type.
void	doRef(FieldIdentifier f, Address val) Primitive field or object of (C++) reference type.
void	enterType(Type type, Address objectAddress) This is called before beginning iterating through either the fields declared in this compound type (not its superclasses) or the elements of this array
void	exitType() This is called after finishing iterating through this compound type

Method Detail

enterType

void enterType(Type type,
               Address objectAddress)

This is called before beginning iterating through either the fields declared in this compound type (not its superclasses) or the elements of this array

exitType

void exitType()

This is called after finishing iterating through this compound type

doBit

void doBit(FieldIdentifier f,
           long val)

Primitive field or object of integer bitfield type. FieldIdentifier is null if not a field of an enclosing object.

doInt

void doInt(FieldIdentifier f,
           long val)

Primitive field or object of integer type. FieldIdentifier is null if not a field of an enclosing object.

doEnum

void doEnum(FieldIdentifier f,
            long val,
            java.lang.String enumName)

Primitive field or object of enumerated type type. FieldIdentifier is null if not a field of an enclosing object.

doFloat

void doFloat(FieldIdentifier f,
             float val)

Primitive field or object of single-precision floating-point type. FieldIdentifier is null if not a field of an enclosing object.

doDouble

void doDouble(FieldIdentifier f,
              double val)

Primitive field or object of double-precision floating-point type. FieldIdentifier is null if not a field of an enclosing object.

doPointer

void doPointer(FieldIdentifier f,
               Address val)

Primitive field or object of pointer type. FieldIdentifier is null if not a field of an enclosing object.

doArray

void doArray(FieldIdentifier f,
             Address val)

Primitive field or object of array type. FieldIdentifier is null if not a field of an enclosing object.

doRef

void doRef(FieldIdentifier f,
           Address val)

Primitive field or object of (C++) reference type. FieldIdentifier is null if not a field of an enclosing object.

doCompound

void doCompound(FieldIdentifier f,
                Address addressOfEmbeddedCompoundObject)

Identifies embedded objects in compound objects. FieldIdentifier is null if not a field of an enclosing object.