org.datanucleus.enhancer.asm.method
Class JdoCopyField

java.lang.Object
  extended by org.datanucleus.enhancer.ClassMethod
      extended by org.datanucleus.enhancer.asm.ASMClassMethod
          extended by 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, java.lang.String name, int access, java.lang.Object returnType, java.lang.Object[] argTypes, java.lang.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,
                    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 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


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