Class DTFJJavaField

java.lang.Object

com.ibm.j9ddr.vm29.view.dtfj.java.DTFJJavaField

All Implemented Interfaces:

JavaField, JavaMember, IDTFJJavaField

Direct Known Subclasses:

DTFJJavaFieldInstance, DTFJJavaFieldStatic

public abstract class DTFJJavaField
extends Object
implements JavaField, IDTFJJavaField

Field Summary

Fields

Modifier and Type	Field	Description
protected static final Class<?>[]	allowlist
protected DTFJJavaClass	clazz
protected static final int	FIELD_ARRAY
protected static final int	FIELD_BOOLEAN
protected static final int	FIELD_BYTE
protected static final int	FIELD_CHAR
protected static final int	FIELD_DOUBLE
protected static final int	FIELD_FLOAT
protected static final int	FIELD_INTEGER
protected static final int	FIELD_LONG
protected static final int	FIELD_OBJECT
protected static final int	FIELD_SHORT
protected final J9ObjectFieldOffset	fieldOffset
protected final com.ibm.j9ddr.vm29.pointer.generated.J9ROMFieldShapePointer	j9field
protected int	modifiers
protected final String	name

Constructor Summary

Constructors

Constructor	Description
DTFJJavaField(DTFJJavaClass clazz, J9ObjectFieldOffset ptr)

Method Summary

Modifier and Type	Method	Description
protected long	checkDataTypeConversion(DTFJJavaObject object, int mask)
boolean	equals(Object obj)	Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
JavaClass	getDeclaringClass()	Get the class which declares this field or method
int	getModifiers()	Get the set of modifiers for this field or method - a set of bits
String	getName()	Get the name of the field or method
protected char	getSigFlag()
String	getSignature()	Get the signature of the field or method
int	hashCode()	Answers an integer hash code for the receiver.
protected boolean	isAncestorOf(JavaClass theClass)	Function to check that the supplied class is an ancestor of this one
protected DTFJJavaObject	validateJavaObject(JavaObject object)

Methods declared in class java.lang.Object

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

Methods declared in interface com.ibm.dtfj.java.JavaField

get, getBoolean, getByte, getChar, getDouble, getFloat, getInt, getLong, getShort, getString, isNestedPacked, isNestedPackedArray

Field Details

allowlist

protected static final Class<?>[] allowlist

FIELD_BOOLEAN

protected static final int FIELD_BOOLEAN

See Also:

• Constant Field Values

FIELD_BYTE

protected static final int FIELD_BYTE

See Also:

• Constant Field Values

FIELD_SHORT

protected static final int FIELD_SHORT

See Also:

• Constant Field Values

FIELD_CHAR

protected static final int FIELD_CHAR

See Also:

• Constant Field Values

FIELD_INTEGER

protected static final int FIELD_INTEGER

See Also:

• Constant Field Values

FIELD_FLOAT

protected static final int FIELD_FLOAT

See Also:

• Constant Field Values

FIELD_LONG

protected static final int FIELD_LONG

See Also:

• Constant Field Values

FIELD_DOUBLE

protected static final int FIELD_DOUBLE

See Also:

• Constant Field Values

FIELD_ARRAY

protected static final int FIELD_ARRAY

See Also:

• Constant Field Values

FIELD_OBJECT

protected static final int FIELD_OBJECT

See Also:

• Constant Field Values

j9field

protected final com.ibm.j9ddr.vm29.pointer.generated.J9ROMFieldShapePointer j9field

fieldOffset

protected final J9ObjectFieldOffset fieldOffset

name

protected final String name

clazz

protected DTFJJavaClass clazz

modifiers

protected int modifiers

Constructor Details

DTFJJavaField

public DTFJJavaField(DTFJJavaClass clazz,
 J9ObjectFieldOffset ptr)
              throws CorruptDataException

Throws:

CorruptDataException

Method Details

getSigFlag

protected char getSigFlag()
                   throws CorruptDataException

Throws:

CorruptDataException

validateJavaObject

protected DTFJJavaObject validateJavaObject(JavaObject object)
                                     throws CorruptDataException

Throws:

CorruptDataException

checkDataTypeConversion

protected long checkDataTypeConversion(DTFJJavaObject object,
 int mask)
                                throws CorruptDataException

Throws:

CorruptDataException

isAncestorOf

protected boolean isAncestorOf(JavaClass theClass)

Function to check that the supplied class is an ancestor of this one

Parameters:

theClass -

Returns:

getDeclaringClass

public JavaClass getDeclaringClass()
                            throws CorruptDataException,
DataUnavailable

Description copied from interface: JavaMember

Get the class which declares this field or method

Specified by:

getDeclaringClass in interface JavaMember

Returns:

the JavaClass which declared this field or method

Throws:

CorruptDataException

DataUnavailable

getModifiers

public int getModifiers()
                 throws CorruptDataException

Description copied from interface: JavaMember

Get the set of modifiers for this field or method - a set of bits

Specified by:

getModifiers in interface JavaMember

Returns:

the modifiers for this field or method. The values for the constants representing the modifiers can be obtained from java.lang.reflect.Modifier.

Throws:

CorruptDataException

getName

public String getName()
               throws CorruptDataException

Description copied from interface: JavaMember

Get the name of the field or method

Specified by:

getName in interface JavaMember

Returns:

the name of the field or method

Throws:

CorruptDataException

getSignature

public String getSignature()
                    throws CorruptDataException

Description copied from interface: JavaMember

Get the signature of the field or method

Specified by:

getSignature in interface IDTFJJavaField

Specified by:

getSignature in interface JavaMember

Returns:

the signature of the field or method. e.g. "(Ljava/lang/String;)V"

Throws:

CorruptDataException

equals

public boolean equals(Object obj)

Description copied from class: java.lang.Object

Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison. The implementation in Object answers true only if the argument is the exact same object as the receiver (==).

Specified by:

equals in interface JavaMember

Overrides:

equals in class Object

Parameters:

obj -

Returns:

True if the given object refers to the same Java Member in the image

See Also:

• Object.hashCode()

hashCode

public int hashCode()

Description copied from class: java.lang.Object

Answers an integer hash code for the receiver. Any two objects which answer true when passed to .equals must answer the same value for this method.

Specified by:

hashCode in interface JavaMember

Overrides:

hashCode in class Object

Returns:

the receiver's hash.

See Also:

• Object.equals(java.lang.Object)