EDU.purdue.cs.bloat.reflect

Interface ClassInfo

All Known Implementing Classes:

ClassFile

public interface ClassInfo

ClassInfo allows a class to be accessed and modified at a very low level. ClassInfo is implemented by file.ClassFile

See Also:

ClassFile

Method Summary

Methods

Modifier and Type	Method and Description
FieldInfo	addNewField(int modifiers, int typeIndex, int nameIndex) Factory method that creates a new field in the class being modeled
FieldInfo	addNewField(int modifiers, int typeIndex, int nameIndex, int cvNameIndex, int constantValueIndex) Factory method that creates a new field with a constant value in the class being modeled
MethodInfo	addNewMethod(int modifiers, int typeIndex, int nameIndex, int exceptionIndex, int[] exceptionTypeIndices, int codeIndex) Adds a new method to this class.
int	classIndex() Get the index into the constant pool of class.
void	commit() Commit any changes to the file or to the virtual machine.
void	commitOnly(java.util.Set methods, java.util.Set fields) Commits only certain methods and fields.
Constant[]	constants() Returns an array of the constants in the constant pool.
void	deleteField(int nameIndex) Deletes a field from this class
void	deleteMethod(int nameIndex, int typeIndex) Deletes a method from this class
FieldInfo[]	fields() Get an array of FieldInfo structures for each field in the class.
int[]	interfaceIndices() Get the indices into the constant pool of class's interfaces.
ClassInfoLoader	loader() Get the class info loader for the class.
MethodInfo[]	methods() Returns an array of MethodInfo structures for each method in the class.
int	modifiers() Get the modifiers of the class.
java.lang.String	name() Get the name of the class.
void	print(java.io.PrintStream out)
void	print(java.io.PrintWriter out)
void	setClassIndex(int index) Set the index into the constant pool of class.
void	setConstants(Constant[] constants) Set all the constants in the constant pool.
void	setInterfaceIndices(int[] indices) Set the indices into the constant pool of class's interfaces.
void	setMethods(MethodInfo[] methods) Sets the methods in this class.
void	setModifiers(int modifiers) Set the modifiers of the class.
void	setSuperclassIndex(int index) Set the index into the constant pool of class's superclass.
int	superclassIndex() Get the index into the constant pool of class's superclass.
java.lang.String	toString()

Method Detail

loader

ClassInfoLoader loader()

Get the class info loader for the class.

Returns:

The class info loader.

name

java.lang.String name()

Get the name of the class.

Returns:

The name of the class.

classIndex

int classIndex()

Get the index into the constant pool of class.

Returns:

The index of the class.

superclassIndex

int superclassIndex()

Get the index into the constant pool of class's superclass.

Returns:

The index of the superclass.

interfaceIndices

int[] interfaceIndices()

Get the indices into the constant pool of class's interfaces.

Returns:

The indices of the interfaces.

setClassIndex

void setClassIndex(int index)

Set the index into the constant pool of class.

Parameters:

index - The index of the class.

setSuperclassIndex

void setSuperclassIndex(int index)

Set the index into the constant pool of class's superclass.

Parameters:

index - The index of the superclass.

setInterfaceIndices

void setInterfaceIndices(int[] indices)

Set the indices into the constant pool of class's interfaces.

Parameters:

indices - The indices of the interfaces.

setModifiers

void setModifiers(int modifiers)

Set the modifiers of the class. The values correspond to the constants in the Modifiers class.

Parameters:

modifiers - A bit vector of modifier flags for the class.

See Also:

Modifiers

modifiers

int modifiers()

Get the modifiers of the class. The values correspond to the constants in the Modifiers class.

Returns:

A bit vector of modifier flags for the class.

See Also:

Modifiers

fields

FieldInfo[] fields()

Get an array of FieldInfo structures for each field in the class.

Returns:

An array of FieldInfo structures.

See Also:

FieldInfo

methods

MethodInfo[] methods()

Returns an array of MethodInfo structures for each method in the class.

setMethods

void setMethods(MethodInfo[] methods)

Sets the methods in this class.

constants

Constant[] constants()

Returns an array of the constants in the constant pool.

setConstants

void setConstants(Constant[] constants)

Set all the constants in the constant pool.

Parameters:

constants - The array of Constants.

See Also:

Constant

commit

void commit()

Commit any changes to the file or to the virtual machine.

commitOnly

void commitOnly(java.util.Set methods,
              java.util.Set fields)

Commits only certain methods and fields.

Parameters:

methods - Methods (MethodInfos) to commit. If null, all methods are committed.

fields - Fields (FieldInfos) to commit. If null, all fields are committed.

addNewField

FieldInfo addNewField(int modifiers,
                    int typeIndex,
                    int nameIndex)

Factory method that creates a new field in the class being modeled

addNewField

FieldInfo addNewField(int modifiers,
                    int typeIndex,
                    int nameIndex,
                    int cvNameIndex,
                    int constantValueIndex)

Factory method that creates a new field with a constant value in the class being modeled

Parameters:

cvNameIndex - The index in the class's constant pool for the UTF8 constant "ConstantValue"

constantValueIndex - The index in the class's constant pool for the constant value

deleteField

void deleteField(int nameIndex)

Deletes a field from this class

Parameters:

nameIndex - Index in the constant pool of the name of the field to be deleted

Throws:

java.lang.IllegalArgumentException - The class modeled by this ClassInfo does not contain a field whose name is at the given index

deleteMethod

void deleteMethod(int nameIndex,
                int typeIndex)

Deletes a method from this class

Parameters:

nameIndex - Index in the constant pool of the name of the method to be deleted

typeIndex - Index in the constant pool of the type of the method to be deleted

Throws:

java.lang.IllegalArgumentException - The class modeled by this ClassInfo does not contain a method whose name and type are not at the given indices

addNewMethod

MethodInfo addNewMethod(int modifiers,
                      int typeIndex,
                      int nameIndex,
                      int exceptionIndex,
                      int[] exceptionTypeIndices,
                      int codeIndex)

Adds a new method to this class.

Parameters:

modifiers - The modifiers for the new method

typeIndex - The index of the type (conglomeration of the parameter types and the return type) for this method in the class's constant pool

nameIndex - The index of the name of the method in the class's constant pool

exceptionIndex - The index of the UTF8 string "Exceptions" in the class's constant pool

exceptionTypeIndices - The indices in the class's constant pool of the type of the exceptions thrown by this method

codeIndex - The index of the UTF8 string "Code" in the class's constant pool

print

void print(java.io.PrintStream out)

print

void print(java.io.PrintWriter out)

toString

java.lang.String toString()

Overrides:

toString in class java.lang.Object