org.datanucleus.enhancer.asm.method
Class JdoCopyField

java.lang.Object
  org.datanucleus.enhancer.ClassMethod
      org.datanucleus.enhancer.asm.ASMClassMethod
          org.datanucleus.enhancer.asm.method.JdoCopyField

public class JdoCopyField
extends ASMClassMethod

Method to generate the method "jdoCopyField" using ASM.

 protected final void jdoCopyField(Answer obj, int index)
 {
     switch (index)
     {
         case 0:
             question = obj.question;
             break;
         default:
             throw new IllegalArgumentException("out of field index :" + index);
     }
 }
 

or with superclass

 protected final void jdoCopyField(ComplexAnswer obj, int index)
 {
     switch (index - jdoInheritedFieldCount)
     {
         case 0:
             param1 = obj.param1;
             break;
         case 1:
             param2 = obj.param2;
             break;
         default:
             super.jdoCopyField(obj, index);
     }
 }
 

and also with minor variations if the class has no fields

Field Summary

Fields inherited from class org.datanucleus.enhancer.asm.ASMClassMethod

visitor

Fields inherited from class org.datanucleus.enhancer.ClassMethod

access, argNames, argTypes, enhancer, exceptions, LOCALISER, methodName, returnType

Constructor Summary

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

Method Summary

void	execute() Method to add the contents of the class method.
static JdoCopyField	getInstance(ASMClassEnhancer enhancer)

Methods inherited from class org.datanucleus.enhancer.asm.ASMClassMethod

getClassEnhancer, getDescriptor, initialise, initialise

Methods inherited from class org.datanucleus.enhancer.ClassMethod

close, equals, getAccess, getMethodAdditionMessage, getName, hashCode

Methods inherited from class java.lang.Object

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

Constructor Detail

JdoCopyField

public JdoCopyField(ClassEnhancer enhancer,
                    String name,
                    int access,
                    Object returnType,
                    Object[] argTypes,
                    String[] argNames)

Constructor.

Parameters:

enhancer - ClassEnhancer

name - Name of method

access - Access type

returnType - Return type

argTypes - Argument types

argNames - Argument names

Method Detail

getInstance

public static JdoCopyField getInstance(ASMClassEnhancer enhancer)

execute

public void execute()

Method to add the contents of the class method.

Specified by:

execute in class ClassMethod