Package org.datanucleus.enhancer.methods

Class NewObjectIdInstance2

java.lang.Object

org.datanucleus.enhancer.ClassMethod

org.datanucleus.enhancer.methods.NewObjectIdInstance2

public class NewObjectIdInstance2
extends ClassMethod

Method to generate the method "dnNewObjectIdInstance" using ASM. For datastore/nondurable identity this is

 public Object dnNewObjectIdInstance(Object key)
 {
     return null;
 }
 

and for SingleFieldIdentity

 public Object dnNewObjectIdInstance(Object key)
 {
     if (key == null)
         throw new IllegalArgumentException("key is null");
     if (key instanceof String != true)
         return new YYYIdentity(this.getClass(), (YYY) key);
     return new YYYIdentity(this.getClass(), (String) key);
 }
 

and for user-supplied object ids

 public Object dnNewObjectIdInstance(Object key)
 {
     return new UserPrimaryKey((String) key);
 }
 

Field Summary

Fields inherited from class org.datanucleus.enhancer.ClassMethod

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

Constructor Summary

Constructors

Constructor	Description
NewObjectIdInstance2(ClassEnhancer enhancer, String name, int access, Object returnType, Object[] argTypes, String[] argNames)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	execute()	Method to add the contents of the class method.
static NewObjectIdInstance2	getInstance(ClassEnhancer enhancer)

Methods inherited from class org.datanucleus.enhancer.ClassMethod

close, equals, getAccess, getClassEnhancer, getDescriptor, getMethodAdditionMessage, getName, getNamer, hashCode, initialise, initialise

Methods inherited from class java.lang.Object

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

Constructor Detail

NewObjectIdInstance2

public NewObjectIdInstance2(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 NewObjectIdInstance2 getInstance(ClassEnhancer enhancer)

execute

public void execute()

Method to add the contents of the class method.

Specified by:

execute in class ClassMethod