com.goldencode.p2j.aspects.ltw

Class MethodTraceAspect.MethodIdentifier

java.lang.Object

com.goldencode.p2j.aspects.ltw.MethodTraceAspect.MethodIdentifier

Enclosing class:

MethodTraceAspect

private static class MethodTraceAspect.MethodIdentifier
extends java.lang.Object

A wrapper for a method, optimized for use as a hash map key. java.lang.reflect.Method is not used directly, because its hashCode() implementation operates on string data, making it slow as a hash map key.

Field Summary

Fields

Modifier and Type	Field and Description
private int	hash Cached hash code
private int	id Identifier assigned by AspectJ, unique within the method's class
private java.lang.reflect.Method	method The wrapped method
(package private) static MethodTraceAspect.MethodIdentifier	UNTRACED Singleton instance meant to represent an untraced method

Constructor Summary

Constructors

Modifier	Constructor and Description
private	MethodIdentifier() Private default constructor intended only to create UNKNOWN singleton.
(package private)	MethodIdentifier(java.lang.reflect.Method method, int id) Constructor which computes and caches hash code.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o) Implementation which is consistent with overridden hashCode() method.
java.lang.String	getShortName() Retrieve a simple, yet not that descriptive name.
int	hashCode() Fast implementation which returns the cached hash code.
java.lang.String	toString() Compose a string representation of this object, primarily for debugging.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

UNTRACED

static final MethodTraceAspect.MethodIdentifier UNTRACED

Singleton instance meant to represent an untraced method

method

private final java.lang.reflect.Method method

The wrapped method

id

private final int id

Identifier assigned by AspectJ, unique within the method's class

hash

private final int hash

Cached hash code

Constructor Detail

MethodIdentifier

MethodIdentifier(java.lang.reflect.Method method,
                 int id)

Constructor which computes and caches hash code.

Parameters:

method - The wrapped method.

id - Identifier assigned by AspectJ, unique within the method's class.

MethodIdentifier

private MethodIdentifier()

Private default constructor intended only to create UNKNOWN singleton.

Method Detail

hashCode

public final int hashCode()

Fast implementation which returns the cached hash code.

Overrides:

hashCode in class java.lang.Object

Returns:

Hash code.

equals

public final boolean equals(java.lang.Object o)

Implementation which is consistent with overridden hashCode() method.

Overrides:

equals in class java.lang.Object

Parameters:

o - Object with which to compare this instance.

Returns:

true if the given instance is equivalent to this instance.

toString

public java.lang.String toString()

Compose a string representation of this object, primarily for debugging.

Overrides:

toString in class java.lang.Object

Returns:

String representation of this object.

getShortName

public java.lang.String getShortName()

Retrieve a simple, yet not that descriptive name. This includes only the class name, without packages.

Returns:

A shorter representative name.