Module openj9.dtfj

Package com.ibm.dtfj.java.j9

Class JavaMethod

java.lang.Object

com.ibm.dtfj.java.j9.JavaMethod

All Implemented Interfaces:

JavaMember, JavaMethod

public class JavaMethod
extends Object
implements JavaMethod

Constructor Summary

Constructors

Constructor	Description
JavaMethod(ImagePointer methodID, String name, String signature, int modifiers, JavaClass declaringClass)

Method Summary

Modifier and Type	Method	Description
void	createNewBytecodeSection(long start, long size)
void	createNewJITSection(long id, long start, long size)
boolean	equals(Object obj)	Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
Iterator	getBytecodeSections()	Get the set of ImageSections containing the bytecode of this method.
Iterator	getCompiledSections()	Get the set of ImageSections containing the compiled code of this method.
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
String	getSignature()	Get the signature of the field or method
int	hashCode()	Answers an integer hash code for the receiver.

Methods declared in class java.lang.Object

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

Constructor Details

JavaMethod

public JavaMethod(ImagePointer methodID,
 String name,
 String signature,
 int modifiers,
 JavaClass declaringClass)

Method Details

getBytecodeSections

public Iterator getBytecodeSections()

Description copied from interface: JavaMethod

Get the set of ImageSections containing the bytecode of this method.

Specified by:

getBytecodeSections in interface JavaMethod

Returns:

an iterator over a collection of ImageSections. Each ImageSection contains data (usually bytecodes) used in executing this method in interpreted mode.

The collection may be empty for native methods, or pre-compiled methods.

Typically, the collection will contain no more than one section, but this is not guaranteed.

See Also:

• ImageSection
• CorruptData

getCompiledSections

public Iterator getCompiledSections()

Description copied from interface: JavaMethod

Get the set of ImageSections containing the compiled code of this method.

Specified by:

getCompiledSections in interface JavaMethod

Returns:

an iterator over a collection of ImageSections. Each ImageSection contains data (usually executable code) used in executing this method in compiled mode.

See Also:

• ImageSection
• CorruptData

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

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

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 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

Specified by:

equals in interface JavaMethod

Overrides:

equals in class Object

Parameters:

obj -

Returns:

True if the given object refers to the same Java Method 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)

createNewBytecodeSection

public void createNewBytecodeSection(long start,
 long size)

createNewJITSection

public void createNewJITSection(long id,
 long start,
 long size)