org.datanucleus.enhancer.asm.method
Class JdoCopyKeyFieldsToObjectId

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

public class JdoCopyKeyFieldsToObjectId
extends ASMClassMethod

Method to generate the method "jdoCopyKeyFieldsToObjectId" using ASM. For datastore/nondurable identity

 public void jdoCopyKeyFieldsToObjectId(Object oid)
 {
 }
 

and for SingleFieldIdentity

 public void jdoCopyKeyFieldsToObjectId(Object oid)
 {
     throw new JDOFatalInternalException("It's illegal to call ...");
 }
 

and for user-supplied app identity

 public void jdoCopyKeyFieldsToObjectId(Object oid)
 {
     if (!(oid instanceof UserPrimaryKey))
         throw new ClassCastException("key class is not mydomain.UserPrimaryKey or null");
     UserPrimaryKey o = (UserPrimaryKey) oid;
     o.zzz1 = zzz1;
     o.zzz2 = zzz2;
 }
 

and for Compound Identity

 public void jdoCopyKeyFieldsToObjectId(Object oid)
 {
     if (!(oid instanceof UserPrimaryKey))
         throw new ClassCastException("key class is not mydomain.UserPrimaryKey or null");
     UserPrimaryKey o = (UserPrimaryKey) oid;
     o.zzz1 = zzz1;
     o.zzz2 = (ZZZ2.Key) JDOHelper.getObjectId(zzz2);
 }
 

Version:

$Revision: 1.16 $

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

JdoCopyKeyFieldsToObjectId(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 JdoCopyKeyFieldsToObjectId	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

JdoCopyKeyFieldsToObjectId

public JdoCopyKeyFieldsToObjectId(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 JdoCopyKeyFieldsToObjectId getInstance(ASMClassEnhancer enhancer)

execute

public void execute()

Method to add the contents of the class method.

Specified by:

execute in class ClassMethod