org.datanucleus.enhancer.asm.method
Class JdoProvideField

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

public class JdoProvideField
extends ASMClassMethod

Method to generate the method "jdoProvideField" using ASM.

 public void jdoProvideField(int fieldIndex)
 {
     if (jdoStateManager == null)
         throw new IllegalStateException("state manager is null");
     switch (fieldIndex)
     {
         case 0:
             jdoStateManager.providedObjectField(this, fieldIndex, question);
             break;
         default:
             throw new IllegalArgumentException("out of field index :" + fieldIndex);
     }
 }
 

and with a superclass

 public void jdoProvideField(int fieldIndex)
 {
     if (jdoStateManager == null)
         throw new IllegalStateException("state manager is null");
     switch (fieldIndex - jdoInheritedFieldCount)
     {
         case 0:
             jdoStateManager.providedStringField(this, fieldIndex, extraInfo);
             break;
         default:
             super.jdoProvideField(fieldIndex);
     }
 }
 

with further minor changes when 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

JdoProvideField(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 JdoProvideField	getInstance(ClassEnhancer 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

JdoProvideField

public JdoProvideField(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 JdoProvideField getInstance(ClassEnhancer enhancer)

execute

public void execute()

Method to add the contents of the class method.

Specified by:

execute in class ClassMethod