private void checkPointers() {
if (null != dictionary && dictionary.getCheckAlienPointers() && !checkingPointers) {
synchronized (this) {
checkingPointers = true;
if (null != dictionary && dictionary.isEditable()) {
List<Pointer> toDelete = null;
for (int i = 0; i < super.size(); i++) {
Pointer pointer = super.get(i);
if (dictionary != pointer.getSource().getDictionary()
|| null == pointer.getTarget()
|| dictionary != pointer.getTarget().getDictionary()) {
if (null == toDelete) {
toDelete = new ArrayList<Pointer>();
}
toDelete.add(pointer);
}
}
if (null != toDelete) {
if (log.isWarnEnabled() && 0 < toDelete.size()) {
log.warn(JWNL.resolveMessage("DICTIONARY_WARN_002", Synset.this.getOffset()));
}
for (Pointer pointer : toDelete) {
remove(pointer);
}
}
}
checkingPointers = false;
}
}
}
@Override
public void add(int index, Pointer pointer) {
if (null == pointer) {
throw new IllegalArgumentException(JWNL.resolveMessage("DICTIONARY_EXCEPTION_043"));
}
super.add(index, pointer);
if (null != dictionary
&& dictionary.isEditable()
&& dictionary.getManageSymmetricPointers()) {
if (null != pointer.getType().getSymmetricType()) {
Pointer symmetric =
new Pointer(
pointer.getType().getSymmetricType(), pointer.getTarget(), pointer.getSource());
if (!pointer.getTarget().getSynset().getPointers().contains(symmetric)) {
pointer.getTarget().getSynset().getPointers().add(symmetric);
}
}
}
}