How to use

shouldAvoidInstantiation

method

in

org.eclipse.persistence.indirection.IndirectList

/**
 * @see java.util.Vector#add(java.lang.Object)
 */
public boolean add(Object element) {
  if (!this.isRegistered) {
    return getDelegate().add(element);
  }
  boolean added = true;
  // PERF: If not instantiated just record the add to avoid the instantiation.
  if (shouldAvoidInstantiation()) {
    if (hasRemovedElements() && getRemovedElements().contains(element)) {
      getRemovedElements().remove(element);
    } else if (getAddedElements().contains(element)) {
      // Must avoid recursion for relationship maintenance.
      return false;
    } else {
      getAddedElements().add(element);
    }
  } else {
    added = getDelegate().add(element);
  }
  raiseAddChangeEvent(element, null);
  return added;
}

/**
 * @see java.util.Vector#add(java.lang.Object)
 */
@Override
public boolean add(E element) {
  if (!this.isRegistered) {
    return getDelegate().add(element);
  }
  boolean added = true;
  // PERF: If not instantiated just record the add to avoid the instantiation.
  if (shouldAvoidInstantiation()) {
    if (hasRemovedElements() && getRemovedElements().contains(element)) {
      getRemovedElements().remove(element);
    } else if (isRelationshipMaintenanceRequired() && getAddedElements().contains(element)) {
      // Must avoid recursion for relationship maintenance.
      return false;
    } else {
      getAddedElements().add(element);
    }
  } else {
    added = getDelegate().add(element);
  }
  raiseAddChangeEvent(element, null);
  return added;
}

/**
 * @see java.util.Vector#add(java.lang.Object)
 */
@Override
public boolean add(E element) {
  if (!this.isRegistered) {
    return getDelegate().add(element);
  }
  boolean added = true;
  // PERF: If not instantiated just record the add to avoid the instantiation.
  if (shouldAvoidInstantiation()) {
    if (hasRemovedElements() && getRemovedElements().contains(element)) {
      getRemovedElements().remove(element);
    } else if (isRelationshipMaintenanceRequired() && getAddedElements().contains(element)) {
      // Must avoid recursion for relationship maintenance.
      return false;
    } else {
      getAddedElements().add(element);
    }
  } else {
    added = getDelegate().add(element);
  }
  raiseAddChangeEvent(element, null);
  return added;
}

/**
 * @see java.util.Vector#remove(java.lang.Object)
 */
public boolean remove(Object element) {
  if (!this.isRegistered) {
    return getDelegate().remove(element);
  }
  // PERF: If not instantiated just record the removal to avoid the instantiation.
  if (shouldAvoidInstantiation()) {
    if (hasAddedElements() && getAddedElements().contains(element)) {
      getAddedElements().remove(element);
    } else if (getRemovedElements().contains(element)) {
      // Must avoid recursion for relationship maintenance.
      return false;
    } else {
      getRemovedElements().add(element);
    }
    this.raiseRemoveChangeEvent(element, null);
    return true;
  } else { 
    int index = this.getDelegate().indexOf(element);
    if(index > -1) {
      this.getDelegate().remove(index);
      this.raiseRemoveChangeEvent(element, index);
      return true;
    }
  }  
  return false;
}

/**
 * @see java.util.Vector#remove(java.lang.Object)
 */
@Override
public boolean remove(Object element) {
  if (!this.isRegistered) {
    return getDelegate().remove(element);
  }
  // PERF: If not instantiated just record the removal to avoid the instantiation.
  if (shouldAvoidInstantiation()) {
    if (hasAddedElements() && getAddedElements().contains(element)) {
      getAddedElements().remove(element);
    } else if (getRemovedElements().contains(element)) {
      // Must avoid recursion for relationship maintenance.
      return false;
    } else {
      getRemovedElements().add((E) element);
    }
    this.raiseRemoveChangeEvent(element, null);
    return true;
  } else {
    int index = this.getDelegate().indexOf(element);
    if(index > -1) {
      this.getDelegate().remove(index);
      this.raiseRemoveChangeEvent(element, index);
      return true;
    }
  }
  return false;
}

/**
 * @see java.util.Vector#remove(java.lang.Object)
 */
@Override
public boolean remove(Object element) {
  if (!this.isRegistered) {
    return getDelegate().remove(element);
  }
  // PERF: If not instantiated just record the removal to avoid the instantiation.
  if (shouldAvoidInstantiation()) {
    if (hasAddedElements() && getAddedElements().contains(element)) {
      getAddedElements().remove(element);
    } else if (getRemovedElements().contains(element)) {
      // Must avoid recursion for relationship maintenance.
      return false;
    } else {
      getRemovedElements().add(element);
    }
    this.raiseRemoveChangeEvent(element, null);
    return true;
  } else { 
    int index = this.getDelegate().indexOf(element);
    if(index > -1) {
      this.getDelegate().remove(index);
      this.raiseRemoveChangeEvent(element, index);
      return true;
    }
  }  
  return false;
}