How to use

setCurrentMapping

method

in

org.eclipse.persistence.internal.descriptors.DescriptorIterator

/**
 * Iterate on the primitive value for its mapping.
 */
public void iteratePrimitiveForMapping(Object primitiveValue, DatabaseMapping mapping) {
  if (primitiveValue == null) {
    return;
  }
  setCurrentMapping(mapping);
  setCurrentDescriptor(null);
  if (shouldIterateOnPrimitives()) {// false by default
    internalIteratePrimitive(primitiveValue);
  }
}

/**
 * Iterate on the primitive value for its mapping.
 */
public void iteratePrimitiveForMapping(Object primitiveValue, DatabaseMapping mapping) {
  if (primitiveValue == null) {
    return;
  }
  setCurrentMapping(mapping);
  setCurrentDescriptor(null);
  if (shouldIterateOnPrimitives()) {// false by default
    AttributeGroup currentGroupOriginal = null;
    AttributeItem currentItemOriginal = null;
    if(this.usesGroup) {
      currentGroupOriginal = this.currentGroup;
      currentItemOriginal = this.currentItem;
      this.currentGroup = this.currentItem.getGroup();
    }
    internalIteratePrimitive(primitiveValue);
    if(this.usesGroup) {
      this.currentGroup = currentGroupOriginal;
      this.currentItem = currentItemOriginal;
    }
  }
}

setCurrentMapping(null);
setCurrentDescriptor(getSession().getDescriptor(sourceObject));
setCurrentItem(null);

/**
 * Iterate on the primitive value for its mapping.
 */
public void iteratePrimitiveForMapping(Object primitiveValue, DatabaseMapping mapping) {
  if (primitiveValue == null) {
    return;
  }
  setCurrentMapping(mapping);
  setCurrentDescriptor(null);
  if (shouldIterateOnPrimitives()) {// false by default
    AttributeGroup currentGroupOriginal = null;
    AttributeItem currentItemOriginal = null;
    if(this.usesGroup) {
      currentGroupOriginal = this.currentGroup;
      currentItemOriginal = this.currentItem;
      this.currentGroup = this.currentItem.getGroup();
    }
    internalIteratePrimitive(primitiveValue);
    
    if(this.usesGroup) {
      this.currentGroup = currentGroupOriginal;
      this.currentItem = currentItemOriginal;
    }
  }
}

setCurrentMapping(null);
setCurrentDescriptor(getSession().getDescriptor(sourceObject));
setCurrentItem(null);

/**
 * This is the root method called to start the iteration.
 */
public void startIterationOn(Object sourceObject) {
  if (getVisitedObjects().containsKey(sourceObject)) {
    return;
  }
  getVisitedObjects().put(sourceObject, sourceObject);
  setCurrentMapping(null);
  setCurrentDescriptor(getSession().getDescriptor(sourceObject));
  iterate(sourceObject);
  // start the recursion
  if ((getCurrentDescriptor() != null) && (!shouldCascadeNoParts())  && !this.shouldBreak()) {
    iterateReferenceObjects(sourceObject);
  }
}
 

/**
 * Iterate on the mapping's reference object and
 * recursively iterate on the reference object's
 * reference objects.
 * This is used for aggregate and aggregate collection mappings, which are not iterated on by default.
 */
public void iterateForAggregateMapping(Object aggregateObject, DatabaseMapping mapping, ClassDescriptor descriptor) {
  if (aggregateObject == null) {
    return;
  }
  setCurrentMapping(mapping);
  // aggregate descriptors are passed in because they could be part of an inheritance tree
  setCurrentDescriptor(descriptor);
  if (shouldIterateOnAggregates()) {// false by default
    internalIterateAggregateObject(aggregateObject);
    if (shouldBreak()) {
      setShouldBreak(false);
      return;
    }
  }
  iterateReferenceObjects(aggregateObject);
}

/**
 * Iterate on the value holder for its mapping.
 */
public void iterateValueHolderForMapping(ValueHolderInterface valueHolder, DatabaseMapping mapping) {
  setCurrentMapping(mapping);
  setCurrentDescriptor(null);
  if (shouldIterateOnIndirectionObjects()) {// false by default
    internalIterateValueHolder(valueHolder);
  }
  if (shouldIterateOverUninstantiatedIndirectionObjects() || (shouldIterateOverIndirectionObjects() && valueHolder.isInstantiated())) {
    // force instantiation only if specified
    mapping.iterateOnRealAttributeValue(this, valueHolder.getValue());
  }
}

/**
 * Iterate on the value holder for its mapping.
 */
public void iterateValueHolderForMapping(ValueHolderInterface valueHolder, DatabaseMapping mapping) {
  setCurrentMapping(mapping);
  setCurrentDescriptor(null);
  if (shouldIterateOnIndirectionObjects()) {// false by default
    internalIterateValueHolder(valueHolder);
  }
  if (shouldIterateOverUninstantiatedIndirectionObjects() || (shouldIterateOverIndirectionObjects() && valueHolder.isInstantiated())) {
    // force instantiation only if specified
    mapping.iterateOnRealAttributeValue(this, valueHolder.getValue());
  }
}

setCurrentMapping(mapping);
setCurrentDescriptor(getDescriptorFor(referenceObject));

setCurrentMapping(mapping);
setCurrentDescriptor(getDescriptorFor(referenceObject));

/**
 * Iterate on the value holder for its mapping.
 */
public void iterateValueHolderForMapping(ValueHolderInterface valueHolder, DatabaseMapping mapping) {
  setCurrentMapping(mapping);
  setCurrentDescriptor(null);
  if (shouldIterateOnIndirectionObjects()) {// false by default
    internalIterateValueHolder(valueHolder);
  }
  if (shouldIterateOverUninstantiatedIndirectionObjects() || (shouldIterateOverIndirectionObjects() && valueHolder.isInstantiated())) {
    // force instantiation only if specified
    mapping.iterateOnRealAttributeValue(this, valueHolder.getValue());
  }
}

setCurrentMapping(mapping);
setCurrentDescriptor(getDescriptorFor(referenceObject));

  return;
setCurrentMapping(mapping);

  return;
setCurrentMapping(mapping);

/**
 * Iterate on the indirection object for its mapping.
 */
public void iterateIndirectContainerForMapping(IndirectContainer container, DatabaseMapping mapping) {
  setCurrentMapping(mapping);
  setCurrentDescriptor(null);
  if (shouldIterateOnIndirectionObjects()) {// false by default
    internalIterateIndirectContainer(container);
  }
  if (shouldIterateOverUninstantiatedIndirectionObjects() || (shouldIterateOverIndirectionObjects() && container.isInstantiated())) {
    // force instantiation only if specified
    mapping.iterateOnRealAttributeValue(this, container);
  } else if (shouldIterateOverIndirectionObjects()) {
    // PERF: Allow the indirect container to iterate any cached elements.
    if (container instanceof IndirectCollection)  {
      mapping.iterateOnRealAttributeValue(this, ((IndirectCollection)container).getAddedElements());
    }
  }
}

/**
 * Iterate on the indirection object for its mapping.
 */
public void iterateIndirectContainerForMapping(IndirectContainer container, DatabaseMapping mapping) {
  setCurrentMapping(mapping);
  setCurrentDescriptor(null);
  if (shouldIterateOnIndirectionObjects()) {// false by default
    internalIterateIndirectContainer(container);
  }
  if (shouldIterateOverUninstantiatedIndirectionObjects() || (shouldIterateOverIndirectionObjects() && container.isInstantiated())) {
    // force instantiation only if specified
    mapping.iterateOnRealAttributeValue(this, container);
  } else if (shouldIterateOverIndirectionObjects()) {
    // PERF: Allow the indirect container to iterate any cached elements.
    if (container instanceof IndirectCollection)  {
      mapping.iterateOnRealAttributeValue(this, ((IndirectCollection)container).getAddedElements());
    }
  }
}

/**
 * Iterate on the indirection object for its mapping.
 */
public void iterateIndirectContainerForMapping(IndirectContainer container, DatabaseMapping mapping) {
  setCurrentMapping(mapping);
  setCurrentDescriptor(null);
  if (shouldIterateOnIndirectionObjects()) {// false by default
    internalIterateIndirectContainer(container);
  }
  if (shouldIterateOverUninstantiatedIndirectionObjects() || (shouldIterateOverIndirectionObjects() && container.isInstantiated())) {
    // force instantiation only if specified
    mapping.iterateOnRealAttributeValue(this, container);
  } else if (shouldIterateOverIndirectionObjects()) {
    // PERF: Allow the indirect container to iterate any cached elements.
    if (container instanceof IndirectCollection)  {
      mapping.iterateOnRealAttributeValue(this, ((IndirectCollection)container).getAddedElements());
    }
  }
}