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sun.jvm.hotspot.debugger.cdbg

public Interface ObjectVisitor

Known Direct Implementers: sun.jvm.hotspot.debugger.cdbg.DefaultObjectVisitor
Imports: sun.jvm.hotspot.debugger.*

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
public void	doArray(FieldIdentifier f, Address val) Primitive field or object of array type.
public void	doBit(FieldIdentifier f, long val) Primitive field or object of integer bitfield type.
public void	doCompound(FieldIdentifier f, Address addressOfEmbeddedCompoundObject) Identifies embedded objects in compound objects.
public void	doDouble(FieldIdentifier f, double val) Primitive field or object of double-precision floating-point type.
public void	doEnum(FieldIdentifier f, long val, String enumName) Primitive field or object of enumerated type type.
public void	doFloat(FieldIdentifier f, float val) Primitive field or object of single-precision floating-point type.
public void	doInt(FieldIdentifier f, long val) Primitive field or object of integer type.
public void	doPointer(FieldIdentifier f, Address val) Primitive field or object of pointer type.
public void	doRef(FieldIdentifier f, Address val) Primitive field or object of (C++) reference type.
public 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
public void	exitType() This is called after finishing iterating through this compound type

Method Detail

doArray	back to summary
public void doArray(FieldIdentifier f, Address val) Primitive field or object of array type. FieldIdentifier is null if not a field of an enclosing object.

doBit	back to summary
public 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.

doCompound	back to summary
public void doCompound(FieldIdentifier f, Address addressOfEmbeddedCompoundObject) Identifies embedded objects in compound objects. FieldIdentifier is null if not a field of an enclosing object.

doDouble	back to summary
public 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.

doEnum	back to summary
public void doEnum(FieldIdentifier f, long val, String enumName) Primitive field or object of enumerated type type. FieldIdentifier is null if not a field of an enclosing object.

doFloat	back to summary
public 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.

doInt	back to summary
public void doInt(FieldIdentifier f, long val) Primitive field or object of integer type. FieldIdentifier is null if not a field of an enclosing object.

doPointer	back to summary
public void doPointer(FieldIdentifier f, Address val) Primitive field or object of pointer type. FieldIdentifier is null if not a field of an enclosing object.

doRef	back to summary
public 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.

enterType	back to summary
public 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	back to summary
public void exitType() This is called after finishing iterating through this compound type