org.datanucleus.enhancer
Class ClassMethod

java.lang.Object
  org.datanucleus.enhancer.ClassMethod

Direct Known Subclasses:

ASMClassMethod, BCELClassMethod

public abstract class ClassMethod
extends java.lang.Object

Representation of a method that an enhanced class requires.

Field Summary

protected int	access Access flags for the method (public, protected etc).
protected java.lang.String[]	argNames Names of the arguments.
protected java.lang.Object[]	argTypes Types of the arguments.
protected ClassEnhancer	enhancer The parent enhancer.
protected java.lang.String[]	exceptions Exceptions that can be thrown.
protected static org.datanucleus.util.Localiser	LOCALISER Localisation of messages
protected java.lang.String	methodName Name of the method.
protected java.lang.Object	returnType Return type for the method

Constructor Summary

ClassMethod(ClassEnhancer enhancer, java.lang.String name, int access, java.lang.Object returnType, java.lang.Object[] argTypes, java.lang.String[] argNames)
Constructor.

ClassMethod(ClassEnhancer enhancer, java.lang.String name, int access, java.lang.Object returnType, java.lang.Object[] argTypes, java.lang.String[] argNames, java.lang.String[] exceptions)
Constructor.

Method Summary

void	close() Method to close the definition of the class method.
boolean	equals(java.lang.Object o) Indicates whether some other object is "equal to" this one.
abstract void	execute() Method to add the contents of the class method.
int	getAccess() Accessor for the access
static java.lang.String	getMethodAdditionMessage(java.lang.String methodName, java.lang.Object returnType, java.lang.Object[] argTypes, java.lang.String[] argNames) Convenience method to generate a message that a method has been added.
java.lang.String	getName() Accessor for the method name
int	hashCode() Return hash code of this instance.
abstract void	initialise() Method to initialise the class method.

Methods inherited from class java.lang.Object

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

Field Detail

LOCALISER

protected static org.datanucleus.util.Localiser LOCALISER

Localisation of messages

enhancer

protected ClassEnhancer enhancer

The parent enhancer.

methodName

protected java.lang.String methodName

Name of the method.

access

protected int access

Access flags for the method (public, protected etc).

returnType

protected java.lang.Object returnType

Return type for the method

argTypes

protected java.lang.Object[] argTypes

Types of the arguments.

argNames

protected java.lang.String[] argNames

Names of the arguments.

exceptions

protected java.lang.String[] exceptions

Exceptions that can be thrown.

Constructor Detail

ClassMethod

public ClassMethod(ClassEnhancer enhancer,
                   java.lang.String name,
                   int access,
                   java.lang.Object returnType,
                   java.lang.Object[] argTypes,
                   java.lang.String[] argNames)

Constructor.

Parameters:

enhancer - ClassEnhancer

name - Name of the method

access - Access for the method (PUBLIC, PROTECTED etc)

returnType - Return type

argTypes - Argument type(s)

argNames - Argument name(s)

ClassMethod

public ClassMethod(ClassEnhancer enhancer,
                   java.lang.String name,
                   int access,
                   java.lang.Object returnType,
                   java.lang.Object[] argTypes,
                   java.lang.String[] argNames,
                   java.lang.String[] exceptions)

Constructor.

Parameters:

enhancer - ClassEnhancer

name - Name of the method

access - Access for the method (PUBLIC, PROTECTED etc)

returnType - Return type

argTypes - Argument type(s)

argNames - Argument name(s)

exceptions - Exceptions that can be thrown

Method Detail

getName

public java.lang.String getName()

Accessor for the method name

Returns:

Name of the method

getAccess

public int getAccess()

Accessor for the access

Returns:

Access for the method

initialise

public abstract void initialise()

Method to initialise the class method.

execute

public abstract void execute()

Method to add the contents of the class method.

close

public void close()

Method to close the definition of the class method. This implementation simply logs a debug message to category ENHANCER.

hashCode

public int hashCode()

Return hash code of this instance.

Overrides:

hashCode in class java.lang.Object

Returns:

hash code of this instance

equals

public boolean equals(java.lang.Object o)

Indicates whether some other object is "equal to" this one.

Overrides:

equals in class java.lang.Object

Parameters:

o - the reference object with which to compare.

Returns:

true if this object is the same as the obj argument; false otherwise.

getMethodAdditionMessage

public static java.lang.String getMethodAdditionMessage(java.lang.String methodName,
                                                        java.lang.Object returnType,
                                                        java.lang.Object[] argTypes,
                                                        java.lang.String[] argNames)

Convenience method to generate a message that a method has been added.

Parameters:

methodName - Name of the method

returnType - Return type of the method

argTypes - arg types for the method

argNames - arg names for the method

Returns:

The message